MEDVISO WHITE PAPER ON STRAIN ANALYSIS IN TAGGED MR IMAGES
|
|
- Agnes Alexandra Osborne
- 5 years ago
- Views:
Transcription
1 Purpose of document The purpose of this document is to document validation of the Strain analysis module in Segment software packages. Intended audience The intended audiences of this document are: Engineering team members from both Medviso AB and KU Leuven Management from both Medviso AB and KU Leuven External and internal auditors Users Background The analysis algorithm is developed by KU Leuven as a research project. The algorithm was integrated by Medviso AB in Segment software packages in order to have a complete image analysis package for Strain analysis purposes. Requirement requirement that should be validated is RA18.2 in the Requirement specification. Page 1/9
2 method The validation is performed in both phantom data and in patients. in computer phantom Phantom data were developed by Medviso as 22 cases with varying strain in both radial and circumferential direction and circumferential rotation. The phantom data simulates one shortaxis slice of a time resolved MR tagging image stack with tagging lines in the left ventricle. The LV contraction was designed in the range of normal values from cine MR images [1], as presented in Table 1. Circumferential strain Radial strain Circumferential rotation Phantom Phantom 2 5,0 0 0 Phantom ,3 Phantom 4 10,0 0 0 Phantom 5 15,0 0 0 Phantom 6 10,0 0 0,3 Phantom 7 20,0 0 0 Phantom 8 25,0 0 0 Phantom 9 20,0 0 0,3 Phantom 10 30,0 0 0 Phantom 11 35,0 0 0 Phantom 12 30,0 0 0,3 Phantom 13 0,5 4,1 0 Phantom 14 1,0 8,1 0 Phantom 15 1,5 12,2 0 Phantom 16 2,0 16,3 0 Phantom 17 2,5 20,4 0 Phantom 18 3,0 24,4 0 Phantom 19 3,5 28,5 0 Phantom 20 4,0 32,6 0 Phantom 21 4,5 36,6 0 Phantom 22 5,0 40,7 0 Table 1. Design of phantom data The simulated left ventricle was segmented manually by Helen Fransson, CEO of Medviso AB. Helen Fransson is PhD and has experience in analysis of cardiac MR images. The automatic strain analysis algorithm was then applied to the tagged image slice. The known simulated strain data was used as reference method. Page 2/9
3 in patients Ten patients provided by KU Leuven were considered for enrollment in the validation study. The patients were randomly selected from a study with data acquired in Linköping hospital by a Philips 1.5T MR scanner during 2010 to One patient was excluded from the validation study due to limited image quality in data. For LV volume quantification, cine short-axis image stacks were used. The LV segmentation in the cine image stack was performed by Jan Engvall by manual delineation in the software Segment. Jan Engvall has many years of experience in analysis of cardiac MR images. LV volumes for the nine patients are presented in Table 2. The mean ± SD for the nine patients were LVM 100 ± 23 g, EDV 164 ± 38 ml, ESV 66 ± 27 ml, and EF 60 ± 12 %. LVM (g) EDV (ml) ESV (ml) EF (%) Patient Patient Patient Patient Patient Patient Patient Patient Patient Table 2. LV volumes for patient population The strain analysis was performed in MR tagging image stack in three short-axis slices (basal, midventricular and apical). The strain analysis starts by loading the cine image stack and the tagging image stack into. The next step is to perform LV segmentation in all slices in the first time frame (end-diastole) in the tagged MR image stack. The LV segmentation was performed by first copying the LV segmentation from the cine image stack, and then does manual correction of the LV segmentation if needed to fit the LV in the tagged image stack. The correction is needed if the position of the LV is changed between the cine and the tagged image stack, or if the slice in the cine image stack does not exactly corresponds to the slice in the tagged image stack. The LV segmentation in the tagging image stack was performed by Helen Fransson and reviewed by Robert Jablonowski. Robert Jablonowski is MD and has experience in MR strain tagging analysis. The final step in the analysis is to run the automatic strain analysis algorithm on the tagged image stack. For comparison, circumferential strain values in one short-axis slice from 2D Doppler echocardiography were used as reference method. Radial strain from 2D echo is known to be the most difficult component and has high observer variability. We therefore did not compare the radial strain component. For each patient, the tagged MR short-axis slice closest with respect to cardiac position to the Doppler short-axis slice, was selected for comparison. Page 3/9
4 Strain quantification The output from the Strain module is global and segmental strain values over time. The global strain value is the mean of strain for each slice. The segmental strain value is the mean of strain in each LV segment divided according to AHA 17 segment model [2]. Peak strain value is then defined as strain in the time frame corresponding to the peak global strain value in each slice. Figure 1 shows the Strain module interface with strain analysis result for one patient. Figure 1. Illustration of the Strain module interface. The left image panel shows the cine image stack and the right image panel shows the tagged image stack. Strain values are presented to the right in the interface as graphs and bullseye plot. Page 4/9
5 result in computer phantom Figure 2 and 3 illustrate the relationship between the simulated strain values and the strain values quantified by the Strain module in Segment software packages. Bias = -0.0 ± 1.0 Figure 2. Relationship between simulated global circumferential strain by the computer phantom and global circumferential strain quantified by the Strain module. In the left panel the dashed line is the line of identity. In the right panel the solid line is the mean bias and the dashed lines 2 SD. Please note some symbols have been superimposed. Bias = -1.0 ± 2.0 Figure 3. Relationship between simulated global radial strain by the computer phantom and global radial strain quantified by Strain module. In the left panel the dashed line is the line of identity. In the right panel the solid line is the mean bias and the dashed lines 2 SD. Please note some symbols have been superimposed. Page 5/9
6 in patients Figure 4 and Table 3 present the relationship between global strain from Doppler echocardiography and global strain quantified by the Strain module in Segment software packages. Figure 5 and Table 4 present the relationship between segmental strain by Doppler echocardiography and segmental strain quantified by the Strain module in Segment software package. The maximum difference on segmental level was 17 (circumferential strain -36 by Doppler and -19 by Strain module in anterior septal for patient 1). Figure 4. Relationship between global circumferential strain by Doppler echocardiography and global strain quantified by the Strain module. In the left panel the dashed line is the line of identity. In the right panel the solid line is the mean bias and the dashed lines 2 SD. Strain by Doppler Strain by Strain module Patient Patient Patient Patient Patient Patient Patient Patient Patient Table 3. Comparison between global circumferential strain by Doppler and by the Strain module in Segment software packages. Page 6/9
7 Figure 5. Relationship between segmental circumferential strain by Doppler echocardiography and segmental strain quantified by the Strain module. In the left panel the dashed line is the line of identity. In the right panel the solid line is the mean bias and the dashed lines 2 SD. Please note some symbols have been superimposed. Page 7/9
8 Strain by Doppler Strain by Anterior Patient Patient Patient Patient Patient Patient Patient Patient Patient Anteroir septal Patient Patient Patient Patient Patient Patient Patient Patient Patient Septal Patient Patient Patient Patient Patient Patient Patient Patient Patient Inferior Patient Patient Patient Patient Patient Patient Patient Patient Patient Posterior Patient Patient Patient Patient Patient Patient Patient Lateral Patient Patient Patient Patient Patient Patient Patient Table 4. Comparison of segmental circumferential strain by Doppler and by the Strain module. Page 8/9
9 Conclusion The Strain module in Segment software packages allows quantification and visualization of myocardial strain from tagged MR images. The proposed strain module can quantify both radial and circumferential strain with good agreement to simulated strain values, and quantify global circumferential strain with good agreement to strain in Doppler echocardiography. On segmental basis, there was a moderate correlation for circumferential strain between strain from Strain module and Doppler echocardiography. Hence, the proposed Strain module can provide clinically relevant quantification and visualization of myocardial global strain in tagged MR images. References [1] Duncan AE, Alfirevic A, Sessler DI, Popovic ZB, and Thomas JD, Perioperative Assessment of Myocardial Deformation. Anesth Analg 2014 Mar;118(3): [2] Cerqueira MD, Weissman NJ, Dilsizian V, Jacobs AK, Kaul S, Laskey WK, et al. Standardized myocardial segmentation and nomenclature for tomographic imaging of the heart: a statement for healthcare professionals from the Cardiac Imaging Committee of the Council on Clinical Cardiology of the American Heart Association. Circulation. 2002;105: Page 9/9
Impaired Regional Myocardial Function Detection Using the Standard Inter-Segmental Integration SINE Wave Curve On Magnetic Resonance Imaging
Original Article Impaired Regional Myocardial Function Detection Using the Standard Inter-Segmental Integration Ngam-Maung B, RT email : chaothawee@yahoo.com Busakol Ngam-Maung, RT 1 Lertlak Chaothawee,
More informationGlobal left ventricular circumferential strain is a marker for both systolic and diastolic myocardial function
Global left ventricular circumferential strain is a marker for both systolic and diastolic myocardial function Toshinari Onishi 1, Samir K. Saha 2, Daniel Ludwig 1, Erik B. Schelbert 1, David Schwartzman
More informationVelocity Vector Imaging as a new approach for cardiac magnetic resonance: Comparison with echocardiography
Velocity Vector Imaging as a new approach for cardiac magnetic resonance: Comparison with echocardiography Toshinari Onishi 1, Samir K. Saha 2, Daniel Ludwig 1, Erik B. Schelbert 1, David Schwartzman 1,
More informationHow To Perform Strain Imaging; Step By Step Approach. Maryam Bo Khamseen Echotechnoligist II EACVI, ARDMS, RCS King Abdulaziz Cardiac Center- Riyadh
How To Perform Strain Imaging; Step By Step Approach Maryam Bo Khamseen Echotechnoligist II EACVI, ARDMS, RCS King Abdulaziz Cardiac Center- Riyadh Outlines: Introduction Describe the basic of myocardium
More informationMeasuring cardiac tissue motion and strain
Ultrasound Measuring cardiac tissue motion and strain Automated Cardiac Motion Quantification A.I. (acmq A.I. ) David Prater, MS, Clinical Scientist, Philips Jane Vogel, MD, Senior Product Manager, Philips
More informationPhoton Attenuation Correction in Misregistered Cardiac PET/CT
Photon Attenuation Correction in Misregistered Cardiac PET/CT A. Martinez-Möller 1,2, N. Navab 2, M. Schwaiger 1, S. G. Nekolla 1 1 Nuklearmedizinische Klinik der TU München 2 Computer Assisted Medical
More informationAdvanced Multi-Layer Speckle Strain Permits Transmural Myocardial Function Analysis in Health and Disease:
Advanced Multi-Layer Speckle Strain Permits Transmural Myocardial Function Analysis in Health and Disease: Clinical Case Examples Jeffrey C. Hill, BS, RDCS Echocardiography Laboratory, University of Massachusetts
More informationVECTORS OF CONTRACTION
1/3/216 Strain, Strain Rate, and Torsion: Myocardial Mechanics Simplified and Applied VECTORS OF CONTRACTION John Gorcsan, MD University of Pittsburgh, Pittsburgh, PA Shortening Thickening Twisting No
More information10/7/2013. Systolic Function How to Measure, How Accurate is Echo, Role of Contrast. Thanks to our Course Director: Neil J.
Systolic Function How to Measure, How Accurate is Echo, Role of Contrast Neil J. Weissman, MD MedStar Health Research Institute & Professor of Medicine Georgetown University Washington, D.C. No Disclosures
More informationNovel echocardiographic modalities: 3D echo, speckle tracking and strain rate imaging. Potential roles in sports cardiology. Stefano Caselli, MD, PhD
Novel echocardiographic modalities: 3D echo, speckle tracking and strain rate imaging. Potential roles in sports cardiology. Stefano Caselli, MD, PhD Ospedale San Pietro Fatebenefratelli Rome, Italy Differential
More informationORIGINAL ARTICLE. Koichi Okuda, PhD 1) and Kenichi Nakajima, MD 2) Annals of Nuclear Cardiology Vol. 3 No
Annals of Nuclear Cardiology Vol. 3 No. 1 29-33 ORIGINAL ARTICLE Normal Values and Gender Differences of Left Ventricular Functional Parameters with CardioREPO Software: Volume, Diastolic Function, and
More informationAssessment of right ventricular contraction by speckle tracking echocardiography in pulmonary hypertension patients.
Biomedical Research 2017; 28 (1): 173-177 ISSN 0970-938X www.biomedres.info Assessment of right ventricular contraction by speckle tracking echocardiography in pulmonary hypertension patients. Yudong Peng,
More informationAutomatic cardiac contour propagation in short axis cardiac MR images
International Congress Series 1281 (2005) 351 356 www.ics-elsevier.com Automatic cardiac contour propagation in short axis cardiac MR images G.L.T.F. Hautvast a,b, T, M. Breeuwer a, S. Lobregt a, A. Vilanova
More informationDECLARATION OF CONFLICT OF INTEREST. None
DECLARATION OF CONFLICT OF INTEREST None Hot Topics in Echocardiography: The position of the EAE EAE / ASE recommendation about Echo Assessment of Cardiac Mechanics Jens-Uwe Voigt Dpt. of Cardiovascular
More informationMeasurement of Ventricular Volumes and Function: A Comparison of Gated PET and Cardiovascular Magnetic Resonance
BRIEF COMMUNICATION Measurement of Ventricular Volumes and Function: A Comparison of Gated PET and Cardiovascular Magnetic Resonance Kim Rajappan, MBBS 1,2 ; Lefteris Livieratos, MSc 2 ; Paolo G. Camici,
More informationDisclosure of Interests. No financial relationships to disclose concerning the content of this presentation or session.
Comparison of Free Breathing Cardiac MRI Radial Technique to the Standard Multi Breath-Hold Cine SSFP CMR Technique For the Assessment of LV Volumes and Function Shimon Kolker, Giora Weisz, Naama Bogot,
More informationDISCLOSURE. Myocardial Mechanics. Relevant Financial Relationship(s) Off Label Usage
7th Annual Team Echocardiography: The Heart of Cardiovascular Medicine Tissue Doppler, Strain, Speckle: What? How? Christopher J Kramer RDCS Aurora Medical Group Advanced Cardiovascular Services, Aurora
More informationMyocardial Strain Imaging in Cardiac Diseases and Cardiomyopathies.
Myocardial Strain Imaging in Cardiac Diseases and Cardiomyopathies. Session: Cardiomyopathy Tarun Pandey MD, FRCR. Associate Professor University of Arkansas for Medical Sciences Disclosures No relevant
More informationThree-dimensional Wall Motion Tracking:
Three-dimensional Wall Motion Tracking: A Novel Echocardiographic Method for the Assessment of Ventricular Volumes, Strain and Dyssynchrony Jeffrey C. Hill, BS, RDCS, FASE Jennifer L. Kane, RCS Gerard
More informationStrain/Untwisting/Diastolic Suction
What Is Diastole and How to Assess It? Strain/Untwisting/Diastolic Suction James D. Thomas, M.D., F.A.C.C. Cardiovascular Imaging Center Department of Cardiology Cleveland Clinic Foundation Cleveland,
More informationLV FUNCTION ASSESSMENT: WHAT IS BEYOND EJECTION FRACTION
LV FUNCTION ASSESSMENT: WHAT IS BEYOND EJECTION FRACTION Jamilah S AlRahimi Assistant Professor, KSU-HS Consultant Noninvasive Cardiology KFCC, MNGHA-WR Introduction LV function assessment in Heart Failure:
More informationPulmonary arteriovenous fistula
International Journal of Medical Imaging 2014; 2(2): 34-38 Published online April 10, 2014 (http://www.sciencepublishinggroup.com/j/ijmi) doi: 10.11648/j.ijmi.20140202.16 Pulmonary arteriovenous fistula
More informationOn the feasibility of speckle reduction in echocardiography using strain compounding
Title On the feasibility of speckle reduction in echocardiography using strain compounding Author(s) Guo, Y; Lee, W Citation The 2014 IEEE International Ultrasonics Symposium (IUS 2014), Chicago, IL.,
More informationEchocardiographic Assessment of the Left Ventricle
Echocardiographic Assessment of the Left Ventricle Theodora Zaglavara, MD, PhD, BSCI/BSCCT Department of Cardiovascular Imaging INTERBALKAN EUROPEAN MEDICAL CENTER 2015 The quantification of cardiac chamber
More informationNormal LV Ejection Fraction Limits Using 4D-MSPECT: Comparisons of Gated Perfusion and Gated Blood Pool SPECT Data with Planar Blood Pool
Normal LV Ejection Fraction Limits Using 4D-MSPECT: Comparisons of Gated Perfusion and Gated Blood Pool SPECT Data with Planar Blood Pool EP Ficaro, JN Kritzman, JR Corbett University of Michigan Health
More information2/2/2011. Strain and Strain Rate Imaging How, Why and When? Movement vs Deformation. Doppler Myocardial Velocities. Movement. Deformation.
Strain and Strain Rate Imaging How, Why and When? João L. Cavalcante, MD Advanced Cardiac Imaging Fellow Cleveland Clinic Foundation Disclosures: No conflicts of interest Movement vs Deformation Movement
More informationAssessment of cardiac function with 3D echocardiography. Đánh giá chức năng tim bằng siêu âm tim 3D
Assessment of cardiac function with 3D echocardiography Đánh giá chức năng tim bằng siêu âm tim 3D TS. BS. Nguyễn Thị Thu Hoài Viện Tim Mạch Quốc Gia Việt Nam TỪ SIÊU ÂM M-mode ĐẾN SIÊU ÂM 3D TỪ SIÊU ÂM
More informationCHAPTER. Quantification in cardiac MRI. This chapter was adapted from:
CHAPTER Quantification in cardiac MRI This chapter was adapted from: Quantification in cardiac MRI Rob J. van der Geest, Johan H.C. Reiber Journal of Magnetic Resonance Imaging 1999, Volume 10, Pages 602-608.
More informationNoncoronary Cardiac MDCT
Noncoronary Cardiac MDCT David A. Bluemke, M.D., Ph.D. Professor, of Radiology and Medicine Johns Hopkins University School of Medicine Baltimore, Maryland Toshiba Disclosures Grant support Noncoronary
More informationRIGHT VENTRICULAR SIZE AND FUNCTION
RIGHT VENTRICULAR SIZE AND FUNCTION Edwin S. Tucay, MD, FPCC, FPCC, FPSE Philippine Society of Echocardiography Quezon City, Philippines Echo Mission, BRTTH, Legaspi City, July 1-2, 2016 NO DISCLOSURE
More information4D Auto LAQ (Left Atrial Quantification)
4D Auto LAQ (Left Atrial Quantification) Introduction There has been an increased interest in quantification of the left atrium (LA) for various types of diseases; e.g. heart failure, heart valve diseases,
More informationStrain and Strain Rate Imaging How, Why and When?
Strain and Strain Rate Imaging How, Why and When? João L. Cavalcante, MD Advanced Cardiac Imaging Fellow Cleveland Clinic Foundation Disclosures: No conflicts of interest Movement vs Deformation Movement
More informationLittle is known about the degree and time course of
Differential Changes in Regional Right Ventricular Function Before and After a Bilateral Lung Transplantation: An Ultrasonic Strain and Strain Rate Study Virginija Dambrauskaite, MD, Lieven Herbots, MD,
More informationProspect Cardiac Packages. S-Sharp
Prospect Cardiac Packages S-Sharp B mode: Teichholz: Teichholz formula LV Volume 2D: modified Simpson's rule method ALM: area length method LV Volume (Intg.): integral method M mode: Long axis: Teichholz
More informationVevo 2100 System Cardio Measurements. Dieter Fuchs, PhD FUJIFILM VisualSonics, Inc.
Vevo 2100 System Cardio Measurements Dieter Fuchs, PhD FUJIFILM VisualSonics, Inc. dfuchs@visualsonics.com Instructions This document is a guideline on how to assess cardiac function in rodents imaged
More informationEcho assessment of the failing heart
Echo assessment of the failing heart Mark K. Friedberg, MD The Labatt Family Heart Center The Hospital for Sick Children Toronto, Ontario, Canada Cardiac function- definitions Cardiovascular function:
More informationConflict of Interests
The Left Ventricle: How Should We Quantify Its Size and Function; Is It Time for 3D in Everyone? Roberto M Lang, MD Conflict of Interests Philips Medical Imaging Research Grants Speakers bureau Advisory
More informationMechanisms of False Positive Exercise Electrocardiography: Is False Positive Test Truly False?
Mechanisms of False Positive Exercise Electrocardiography: Is False Positive Test Truly False? Masaki Izumo a, Kengo Suzuki b, Hidekazu Kikuchi b, Seisyo Kou b, Keisuke Kida b, Yu Eguchi b, Nobuyuki Azuma
More informationASSESSMENT OF CIRCUMFERENTIAL MYOCARDIAL FUNCTION USING RADIAL TAGGED MRI YUJAUNG KIM. Bachelor of Science in Electronic System Engineering
ASSESSMENT OF CIRCUMFERENTIAL MYOCARDIAL FUNCTION USING RADIAL TAGGED MRI YUJAUNG KIM Bachelor of Science in Electronic System Engineering Daegu University February 2007 Submitted in partial fulfillment
More informationQuantification of left ventricular regional functions using ECG-gated myocardial perfusion SPECT Validation of left ventricular systolic functions
ORIGINAL ARTICLE Annals of Nuclear Medicine Vol. 20, No. 7, 449 456, 2006 Quantification of left ventricular regional functions using ECG-gated myocardial perfusion SPECT Validation of left ventricular
More informationTissue Doppler Imaging in Congenital Heart Disease
Tissue Doppler Imaging in Congenital Heart Disease L. Youngmin Eun, M.D. Department of Pediatrics, Division of Pediatric Cardiology, Kwandong University College of Medicine The potential advantage of ultrasound
More informationVelocity, strain and strain rate: Doppler and Non-Doppler methods. Thoraxcentre, Erasmus MC,Rotterdam
Velocity, strain and strain rate: Doppler and Non-Doppler methods J Roelandt J. Roelandt Thoraxcentre, Erasmus MC,Rotterdam Basics of tissue Doppler imaging Instantaneous annular velocity profiles IVCT
More informationU. Herberg 1, D. Ladage 2, E. Gatzweiler 1, O. Dewald 3, J. Dörner 4, K. Linden 1, M. Seehase 1, D. Dörr 3, C. Nähle 4, J.
Pressure volume relations obtained by 3D-real-time echocardiography and mini-pressure wire - multimodal validation-studies with MRI and conductancecatheter in piglets U. Herberg 1, D. Ladage 2, E. Gatzweiler
More informationComparison of Cardiac MDCT with MRI and Echocardiography in the Assessement of Left Ventricular Function
Comparison of Cardiac MDCT with MRI and Echocardiography in the Assessement of Left Ventricular Function Poster No.: C-0969 Congress: ECR 2012 Type: Scientific Exhibit Authors: B. Kara, Y. Paksoy, C. Erol,
More informationValidation of echocardiographic 2-dimensional. speckle tracking longitudinal strain imaging for
Chapter 10 Validation of echocardiographic 2-dimensional speckle tracking longitudinal strain imaging for viability assessment in patients with chronic ischemic left ventricular dysfunction and comparison
More informationWHAT DO ELECTROPHYSIOLOGISTS WANT TO KNOW FROM ECHOCARDIOGRAPHERS BEFORE, DURING&AFTER CARDIAC RESYNCHRONIZATION THERAPY?
WHAT DO ELECTROPHYSIOLOGISTS WANT TO KNOW FROM ECHOCARDIOGRAPHERS BEFORE, DURING&AFTER CARDIAC RESYNCHRONIZATION THERAPY? Mary Ong Go, MD, FPCP, FPCC, FACC OUTLINE What is CRT Who needs CRT What does the
More informationAltered left ventricular geometry and torsional mechanics in high altitude-induced pulmonary hypertension:
Altered left ventricular geometry and torsional mechanics in high altitude-induced pulmonary hypertension: a 3-D echocardiographic study B.W. De Boeck,* S. Kiencke, C. Dehnert, K. Auinger, # M. Maggiorini,
More informationTissue Doppler and Strain Imaging. Steven J. Lester MD, FRCP(C), FACC, FASE
Tissue Doppler and Strain Imaging Steven J. Lester MD, FRCP(C), FACC, FASE Relevant Financial Relationship(s) None Off Label Usage None a. Turn the wall filters on and turn down the receiver gain. b. Turn
More informationΙπποκράτειες μέρες καρδιολογίας Θεσσαλονίκη, 9-10 Μαρτίου Φωτεινή Α. Λαζαρίδου Επιμελήτρια Α Γενικό Νοσοκομείο Αγιος Παύλος, Θεσσαλονίκη
Ιπποκράτειες μέρες καρδιολογίας Θεσσαλονίκη, 9-10 Μαρτίου 2018 Φωτεινή Α. Λαζαρίδου Επιμελήτρια Α Γενικό Νοσοκομείο Αγιος Παύλος, Θεσσαλονίκη RV shape Triangular shape in frontal plane crescent shape in
More informationStephen Glen ISCHAEMIC HEART DISEASE AND LEFT VENTRICULAR FUNCTION
Stephen Glen ISCHAEMIC HEART DISEASE AND LEFT VENTRICULAR FUNCTION Overview Coronary arteries Terminology to describe contractility Measuring ventricular function Systolic dysfunction Practice cases- LV
More informationProf. JL Zamorano Hospital Universitario Ramón y Cajal
Prof. JL Zamorano Hospital Universitario Ramón y Cajal Fully Automated Quantification Software Adaptive analytical algorithm consists in knowledge-based identification of global shape and specific adaptation
More informationEffect of loading and geometry on functional parameters
Effect of loading and geometry on functional parameters Piet Claus Cardiovascular Imaging and Dynamics Department of Cardiovascular Diseases Leuven University, Leuven, Belgium 5 th European Echocardiography
More informationThe rapid evolution of echocardiography during the past 25 years
Evaluation of Myocardial Mechanics in the Fetus by Velocity Vector Imaging Adel K. Younoszai, MD, David E. Saudek, MD, Stephen P. Emery, MD, and James D. Thomas, MD, Denver, Colorado; Cleveland, Ohio;
More informationTissue Doppler and Strain Imaging
Tissue Doppler and Strain Imaging Steven J. Lester MD, FRCP(C), FACC, FASE Relevant Financial Relationship(s) None Off Label Usage None 1 Objective way with which to quantify the minor amplitude and temporal
More informationStress, strain and contrast. UK available agents. Safety 13/06/2018. Which enhancing agent do you use? Ultrasound enhancing agents.
Stress, strain and contrast Stephen Glen Ultrasound enhancing agents Safety Effectiveness during stress Perfusion / myocardial contrast UK available agents Which enhancing agent do you use? Name Bubble
More informationImaging to Measure Cardiac Contractility: Current and Future. Safety Pharmacology Society 2012 Jon Heyen on behalf of Bob Coatney
Imaging to Measure Cardiac Contractility: Current and Future Safety Pharmacology Society 2012 Jon Heyen on behalf of Bob Coatney Background / Context / Scope How do we bridge? Contractility = Force generated
More informationFransson, Helen; Hedeer, Fredrik; Arévalo, Carmen; Carlsson, Marcus; Engblom, Henrik; Ubachs, Joey; Arheden, Håkan; Heiberg, Einar
Development and validation of a new automatic algorithm for quantification of left ventricular volumes and function in gated myocardial perfusion SPECT using cardiac magnetic resonance as reference standard.
More information좌심실수축기능평가 Cardiac Function
Basic Echo Review Course 좌심실수축기능평가 Cardiac Function Seonghoon Choi Cardiology Hallym university LV systolic function Systolic function 좌심실수축기능 - 심근의수축으로심실에서혈액을대동맥으로박출하는기능 실제임상에서 LV function 의의미 1Diagnosis
More informationSPECT. quantitative gated SPECT (QGS) II. viability RH-2 QGS. Butterworth. 14% 10% 0.43 cycles/cm ( 39: 21 27, 2002) ( )
21 201 Tl SPECT * * * * * * * * SPECT QGS 99m Tc 201 Tl QGS 20 QGS Butterworth Butterworth 0.39 cycles/cm 14% 10% 0.43 cycles/cm ( r = 0.80 r = 0.86 r = 0.80) 201 Tl QGS ( 39: 21 27, 2002) I. quantitative
More informationPathophysiology and Current Evidence for Detection of Dyssynchrony
Editorial Cardiol Res. 2017;8(5):179-183 Pathophysiology and Current Evidence for Detection of Dyssynchrony Michael Spartalis a, d, Eleni Tzatzaki a, Eleftherios Spartalis b, Christos Damaskos b, Antonios
More informationSite of Latest Mechanical Activation, LV Lead Position and Response to Cardiac Resynchronization Therapy
Site of Latest Mechanical Activation, LV Lead Position and Response to Cardiac Resynchronization Therapy J.M.J. Boogers Department of Cardiology Leiden University Medical Center Leiden, The Netherlands
More informationQuantitation of right ventricular dimensions and function
SCCS Basics of cardiac assessment Quantitation of right ventricular dimensions and function Tomasz Kukulski, MD PhD Dept of Cardiology, Congenital Heart Disease and Electrotherapy Silesian Medical University
More informationHow does the heart pump? From sarcomere to ejection volume
How does the heart pump? From sarcomere to ejection volume Piet Claus Cardiovascular Imaging and Dynamics Department of Cardiovascular Diseases University Leuven, Leuven, Belgium Course on deformation
More informationImaging heart. UK Biobank Annual Meeting 13 th June 2016
NIHR Barts and The London Cardiovascular Biomedical Research Unit National Institute for Health Research Cardiovascular Biomedical Research Unit at Barts Imaging heart UK Biobank Annual Meeting 13 th June
More informationMechanisms of heart failure with normal EF Arterial stiffness and ventricular-arterial coupling. What is the pathophysiology at presentation?
Mechanisms of heart failure with normal EF Arterial stiffness and ventricular-arterial coupling What is the pathophysiology at presentation? Ventricular-arterial coupling elastance Central arterial pressure
More informationLeft atrial function. Aliakbar Arvandi MD
In the clinic Left atrial function Abstract The left atrium (LA) is a left posterior cardiac chamber which is located adjacent to the esophagus. It is separated from the right atrium by the inter-atrial
More informationCardiac hypertrophy : differentiating disease from athlete
Cardiac hypertrophy : differentiating disease from athlete Ario Soeryo Kuncoro, MD, Cardiologist Echocardiography Division, National Cardiovascular Centre Harapan Kita-Jakarta Departement of Cardiology
More informationOPTIMIZING ECHO ACQUISTION FOR STRAIN AND DIASTOLOGY
OPTIMIZING ECHO ACQUISTION FOR STRAIN AND DIASTOLOGY October 8, 2017 Deborah Agler, ACS, RDCS, FASE Coordinator of Education and Training Cleveland Clinic General Principles Diastology Clinical Data Heart
More informationAbstract nr AHA, Chicago November European Heart Journal Cardiovascular Imaging, in press. Nr Peter Blomstrand
Left Ventricular Diastolic Function Assessed by Echocardiography and Tissue Doppler Imaging is a strong Predictor of Cardiovascular Events in Patients with Diabetes Mellitus Type 2 Peter Blomstrand, Martin
More informationDr. Dermot Phelan MB BCh BAO PhD European Society of Cardiology 2012
Relative Apical Sparing of Longitudinal Strain Using 2- Dimensional Speckle-Tracking Echocardiography is Both Sensitive and Specific for the Diagnosis of Cardiac Amyloidosis. Dr. Dermot Phelan MB BCh BAO
More informationNancy Goldman Cutler, MD Beaumont Children s Hospital Royal Oak, Mi
Nancy Goldman Cutler, MD Beaumont Children s Hospital Royal Oak, Mi Identify increased LV wall thickness (WT) Understand increased WT in athletes Understand hypertrophic cardiomyopathy (HCM) Enhance understanding
More informationPRESENTER DISCLOSURE INFORMATION. There are no potential conflicts of interest regarding current presentation
PRESENTER DISCLOSURE INFORMATION There are no potential conflicts of interest regarding current presentation Better synchrony and diastolic function for septal versus apical right ventricular permanent
More informationDOI: /
The Egyptian Journal of Hospital Medicine (Apr. 2015) Vol. 59, Page 167-171 Optimization of Coronary Sinus Lead Position in Cardiac Resynchronization Therapy guided by Three Dimensional Echocardiography
More informationCoronary Occlusion Detection with 4D Optical Flow Based Strain Estimation on 4D Ultrasound
Coronary Occlusion Detection with 4D Optical Flow Based Strain Estimation on 4D Ultrasound Qi Duan 1,2, Elsa D. Angelini 3, Auranuch Lorsakul 1, Shunichi Homma 1, and Andrew F. Laine 1 1 Columbia University,
More informationAutomated Volumetric Cardiac Ultrasound Analysis
Whitepaper Automated Volumetric Cardiac Ultrasound Analysis ACUSON SC2000 Volume Imaging Ultrasound System Bogdan Georgescu, Ph.D. Siemens Corporate Research Princeton, New Jersey USA Answers for life.
More informationLeft ventricular rotational and strain analysis by three-dimensional speckle tracking echocardiography in cardiomyopathies.
1 2nd Department of Medicine and Cardiology Center, Medical Faculty, Albert Szent-Györgyi Clinical Center, University of Szeged Left ventricular rotational and strain analysis by three-dimensional speckle
More informationRight Ventricular Strain in Normal Healthy Adult Filipinos: A Retrospective, Cross- Sectional Pilot Study
Right Ventricular Strain in Normal Healthy Adult Filipinos: A Retrospective, Cross- Sectional Pilot Study By Julius Caesar D. de Vera, MD Jonnah Fatima B. Pelat, MD Introduction Right ventricle contributes
More informationCardiovascular hemodynamics in the stress echo lab with open-source software
Cardiovascular hemodynamics in the stress echo lab with open-source software T. Bombardini, D. Cini, E. Picano Institute of Clinical Physiology of CNR, Pisa, Italy no conflict of interest Background Stress
More informationE S A O T E. MyLab. Rev.E March Doc # 29B63EN05 STRESS ECHO OPTION
E S A O T E Rev.E March 2010 MyLab STRESS ECHO OPTION Doc # 29B63EN05 M y L a b A D V A N C E D O P E R A T I O N S S T R E S S E C H O 2 M y L a b A D V A N C E D O P E R A T I O N S STRESS ECHO OPTION
More informationFull terms and conditions of use:
This article was downloaded by:[uppsala Universitetsbibiotek] [Uppsala Universitetsbibiotek] On: 3 May 2007 Access Details: [subscription number 731962693] Publisher: Informa Healthcare Informa Ltd Registered
More informationSUPPLEMENTAL MATERIAL
SUPPLEMENTAL MATERIAL Supplemental methods Pericardium In several studies, it has been shown that the pericardium significantly modulates ventricular interaction. 1-4 Since ventricular interaction has
More informationAutomatic segmentation of myocardium at risk from contrast enhanced SSFP CMR: validation against expert readers and SPECT
Tufvesson et al. BMC Medical Imaging (2016) 16:19 DOI 10.1186/s12880-016-0124-1 TECHNICAL ADVANCE Automatic segmentation of myocardium at risk from contrast enhanced SSFP CMR: validation against expert
More informationAlicia Armour, MA, BS, RDCS
Alicia Armour, MA, BS, RDCS No disclosures Review 2D Speckle Strain (briefly) Discuss some various patient populations & disease pathways where Strain can be helpful Discuss how to acquire images for Strain
More informationMPI Overview. Artifacts and Pitfalls in MPI. Acquisition and Processing. Peeyush Bhargava MD, MBA
Artifacts and Pitfalls in MPI MPI Overview Peeyush Bhargava MD, MBA www.nuclearmd.com ~ 40% of all Nuclear Medicine Procedures ~ 9 million procedures every year in US >95% are SPECT,
More informationA New Method to Rapidly Evaluate LVEF from a Contractility Polar Map. Lebeau et al.
A New Method to Rapidly Evaluate LVEF from a Contractility Polar Map Lebeau et al. Good afternoon It is my pleasure to present to you a new method to rapidly evaluate LVEF from a contractility polar map
More informationMagnetic resonance criteria for future trials of cardiac resynchronization therapy
Journal of Cardiovascular Magnetic Resonance (2005) 7, 827 834 Copyright D 2005 Taylor & Francis Inc. ISSN: 1097-6647 print / 1532-429X online DOI: 10.1080/10976640500287992 ELECTROPHYSIOLOGY Magnetic
More informationInfluence of Location and Size of Myocardial Infarction on Post-infarction Remodelling
Influence of Location and Size of Myocardial Infarction on Post-infarction Remodelling Masci PG, MD ; Ganame J, MD ; Francone M, MD, PhD # ; Desmet W, MD ; Iacucci I, MD # ; Barison A, MD ; Carbone I,
More informationTemporarily increased stroke rate after Takotsubo syndrome: need for an anticoagulation?
Abanador-Kamper et al. BMC Cardiovascular Disorders (2018) 18:117 https://doi.org/10.1186/s12872-018-0842-0 RESEARCH ARTICLE Open Access Temporarily increased stroke rate after Takotsubo syndrome: need
More informationTwo-Dimensional Ultrasonic Strain Rate Measurement of the Human Heart in Vivo
Two-Dimensional Ultrasonic Strain Rate Measurement of the Human Heart in Vivo Jan D hooge 1, Fadi Jamal 2, Bart Bijnens 2, Jan Thoen 3, Frans Van de Werf 2, George R. Sutherland 2, and Paul Suetens 1 1
More informationMyocardial Delineation via Registration in a Polar Coordinate System
Myocardial Delineation via Registration in a Polar Coordinate System Nicholas M.I. Noble, Derek L.G. Hill, Marcel Breeuwer 2, JuliaA. Schnabel, David J. Hawkes, FransA. Gerritsen 2, and Reza Razavi Computer
More informationTW Hamilton, EP Ficaro, TA Mitchell, JN Kritzman, JR Corbett University of Michigan Health System, Ann Arbor, MI
Accuracy and Variability of of 3D-MSPECT for Estimating the Left Ventricular Ejection Fraction as as a Function of of Gating Frames and Reconstruction Filters TW Hamilton, EP Ficaro, TA Mitchell, JN Kritzman,
More information3D-stress echocardiography Bernard Cosyns, MD, PhD
3D-stress echocardiography Bernard Cosyns, MD, PhD No Disclosure The Pro-Technology bias Sicari et al. Cardiovascular Ultrasound 2006, 4:11 Overview 2D stress echocardiography: main limitations 3D echocardiography:
More informationCoronary artery disease (CAD) risk factors
Background Coronary artery disease (CAD) risk factors CAD Risk factors Hypertension Insulin resistance /diabetes Dyslipidemia Smoking /Obesity Male gender/ Old age Atherosclerosis Arterial stiffness precedes
More informationVentricular function assessment using MRI: comparative study between cartesian and radial techniques of k-space filling
Ventricular function assessment using MRI: comparative study between cartesian and radial techniques of k-space filling Poster No.: B-0681 Congress: ECR 014 Type: Scientific Paper Authors: C. Ferreira,
More informationMultiTransmit 4D brings robustness to 3.0T cardiac imaging
Publication for the Philips MRI Community Issue 44 SUMMER 2011 MultiTransmit 4D brings robustness to 3.0T cardiac imaging Bonn clinicians see a reduction in artifacts and inhomogeneities as a significant
More informationPart II: Fundamentals of 3D Echocardiography: Acquisition and Application
Part II: Fundamentals of 3D Echocardiography: Acquisition and Application Dr. Bruce Bollen 3D matrix array TEE probes provide options for both 2D and 3D imaging. Indeed, their utility in obtaining multiple
More informationBasic Assessment of Left Ventricular Systolic Function
WINFOCUS BASIC ECHO (WBE) Basic Assessment of Left Ventricular Systolic Function Ritesh Dhar, MD Director, Echocardiography Lab and Staff Cardiologist Intermountain Medical Center Murray, Utah Outline
More informationDiastolic Heart Function: Applying the New Guidelines Case Studies
Diastolic Heart Function: Applying the New Guidelines Case Studies Mitral Regurgitation The New ASE William Guidelines: A. Zoghbi Role MD, of FASE, 2D/3D MACCand CMR Professor and Chairman, Department
More informationTHE first objective of this thesis was to explore possible shape parameterizations
8 SUMMARY Columbus is not the only person who has discovered a new continent. So too have I. Anak Semua Bangsa (Child of All Nations) PRAMOEDYA ANANTA TOER 8.1 Myocardial wall motion modeling THE first
More informationQuantification of Cardiac Chamber Size
2017 KSE 2017-11-25 Quantification of Cardiac Chamber Size Division of Cardiology Keimyung University Dongsan Medical Center In-Cheol Kim M.D., Ph.D. LV size and function Internal linear dimensions PLX
More information