Machine Learning Powered Automatic Organ Classification for Patient Specific Organ Dose Estimation
|
|
- Horatio Webster
- 5 years ago
- Views:
Transcription
1 Machine Learning Powered Automatic Organ Classification for Patient Specific Organ Dose Estimation Junghwan Cho, Eunmi Lee, Hyunkwang Lee, Bob Liu, Xinhua Li, Shahein Tajmir, Dushyant Sahani, and Synho Do* Lab. Of Medical Imaging and Computation Massachusetts General Hospital and Harvard Medical School MGH and BWH CCDS
2 Disclosure CRICO: grant T-PLUS: sponsored research agreement McCoy Medical Technologies: Non-commercial research license NVIDIA: GPU system donation
3 Contents How to estimate radiation dose? How to use Organ Recognition Machine Learning algorithm for Organ Dose Estimation? Results/Comparison Conclusions
4 Radiation Dose Estimation CTDI (CT Dose Index) : Average dose to the central slice of a cylindrical PMMA phantom CTDI w, CTDI vol CTDI vol to organ dose conversion coefficients Patient specific organ dose estimation with AI
5 CTDI w and CTDI vol CTDI varies across the field of view To represent dose for a specific scan protocol #SIIM17 CT Dose Estimation by John Boone
6 DLP (Dose Length Product) and E (Effective Dose) - To better represent the overall energy delivered - To reflect the total energy absorbed - To consider biological sensitivity of the tissue or organ - Single dose parameter that reflects the risk of a nonuniform exposure for an equivalant whole body EE(mmmmmm) kk DDDDDD
7 Approaches Accurate Fast Unrealistic Measurements Simulations General Slow Computational Challenge
8 Our Approach Organ Recognition AI ImPACT Simulation Patient Specific Scanner Model Scan/Acquisition Parameters Look-up table mapping
9 Proof of Concept Training Data (A) Whole-body CT images (B) Six body parts
10 How many data set? Test data set Learning Curve
11 Body Part Recognition AI (6 Classes) Organ Detection AI (16 Classes) ImPACT CT Dosimetry Slabs
12 HEAD1: Brain HEAD2: Eye Lens HEAD3: Nose HEAD4: Salivary Gland HEAD5 Body Part Classification (16 classes) #SIIM17 TRUNK1: Upper Lung TRUNK2: Thymus TRUNK3: Heart TRUNK4: Chest (Liver Yes) TRUNK5: Abdomen 1 TRUNK6: Abdomen 2 TRUNK7: Pelvis 1 TRUNK8: Pelvis 2 TRUNK9: Urinary Bladde LEG 1 LEG 2 SIEMENS Biograph 64 Scanner CT Nk/Ch/Abd I+ 2.0 B31f PETCT 2 mm slice thickness 100 male and 100 female patients
13 Organ Recognition AIs Training a 22 layers deep convolutional neural network ( Male and Female) Male: Train-> 70 Patients, Total: 20, 424 image slices Test -> 30 Patients, Total: 8,564 image slices Training data sets of male Female: Train-> 70 Patients, Total: 19,335 image slices Test -> 30 Patients, Total: 8,017 image slices
14 Test result of body part classification with 30 patients each gender #SIIM17 Male ACC=98.94%, AUC=0.999, AP=0.998 Female ACC=99.11%, AUC=1.000, AP=0.998
15 Software Flowchart DICOM Read (Patient) Machine Learning 1 (Body Part Classification) Scanner & Scan Parameter ImPACT Dose Calculator Scan Region ImPACT based Organ Dose Estimation DICOM to Images Conversion Measurement of Patient Effective Diameter Correction Factor (Regression Model) Heart 1.6 Machine Learning 2 (Organ Segmentation) MGH PODE (Coase Tuning to Patient Weight) Organ Detection & Segmentation + MGH PODE (Fine Tuning to Patient Organ) Normalized Organ Dose by CTDIvol Patient Effective Dia(mm)
16 Patient Specific Organ Reg. AI Each Patient : Unique Organ Shape and Size Patient Organ Detection and Segmentation : Organ Volume Estimation (Lung, Liver, Kidney, Urinary Bladder, Muscles etc) Our Solution Machine Learning Powered Automatic Organ Classification. Liver Urinary Bladder Liver Urinary Bladder #SIIM17 Same BMI
17 Scan Region Determination by Body Part Classification (Chest Scan) #SIIM17 Coronal view Axial slices Classification results Corresponding scan range of ImPACT Slice #1 Slice #66 Slice #134 Slab #170 Slab #83
18 Scan Region Determination by Body Part Classification (Abdomen-Pelvis Scan) #SIIM17 Coronal view Axial slices Classification results Corresponding scan range of ImPACT Slice #1 Slice Slice #32 #66 Slab #126 Slice #66 Slab #11
19 Radimetrics vs MGH Personalized Organ Does Estimator (PODE) Phantom Model SSDE (Size Specific Organ Dose Estimate) Organ Specific (Shape & Volume) Radimetrics* Mathematical Model (20 phantom models [6/3/11]) Yes (Patient Effective Diameter) No MGH PODE Mathematical Model (ImPACT Patient Dosimetry) Yes (Patient Effective Diameter) Yes * Radiation Dose Calculations in Radimetrics Enterprise Platform by Bayer (RAD-INF , March 2014) #SIIM17
20 Organ Dose Estimation Comparison (1/3) #SIIM17 Patient Weight=75kg Patient Weight=86kg Brain Eye Lenses Salivary Glands Esophagus Thyroid Lungs Thymus Heart Liver Spleen Stomach Gall Bladder Pancreas Adrenals Kidneys Colon Small Intestine Uninary Bladder Testicles Skin Muscle Red Marrow Skeleton Impact 1.04 Radimetrics MGH PODE Brain Eye Lenses Salivary Glands Esophagus Thyroid Lungs Thymus Heart Liver Spleen Stomach Gall Bladder Pancreas Adrenals Kidneys Colon Small Intestine Uninary Bladder Testicles Skin Muscle Red Marrow Skeleton Impact 1.04 Radimetrics MGH PODE Organ Dose [msv] Organ Dose [msv]
21 Organ Dose Estimation Comparison (2/3) #SIIM17 Patient Weight=93kg Patient Weight=104kg Brain Eye Lenses Salivary Glands Esophagus Thyroid Lungs Thymus Heart Liver Spleen Stomach Gall Bladder Pancreas Adrenals Kidneys Colon Small Intestine Uninary Bladder Testicles Skin Muscle Red Marrow Skeleton Impact 1.04 Radimetrics MGH PODE Brain Eye Lenses Salivary Glands Esophagus Thyroid Lungs Thymus Heart Liver Spleen Stomach Gall Bladder Pancreas Adrenals Kidneys Colon Small Intestine Uninary Bladder Testicles Skin Muscle Red Marrow Skeleton Impact 1.04 Radimetrics MGH PODE Organ Dose [msv] Organ Dose [msv]
22 Organ Dose Estimation Comparison (3/3) #SIIM17 Patient Weight=113kg Patient Weight=122kg Brain Eye Lenses Salivary Glands Esophagus Thyroid Lungs Thymus Heart Liver Spleen Stomach Gall Bladder Pancreas Adrenals Kidneys Colon Small Intestine Uninary Bladder Testicles Skin Muscle Red Marrow Skeleton Impact 1.04 Radimetrics MGH PODE Brain Eye Lenses Salivary Glands Esophagus Thyroid Lungs Thymus Heart Liver Spleen Stomach Gall Bladder Pancreas Adrenals Kidneys Colon Small Intestine Uninary Bladder Testicles Skin Muscle Red Marrow Skeleton Impact 1.04 Radimetrics MGH PODE Organ Dose [msv] Organ Dose [msv]
23 Conclusions Body part/organ recognition is essential in automatic medical image analysis : anatomy identification and organ segmentation Compared to text-based body part retrieval in DICOM header, image based organ recognition is accurate and fast with machine learning (ML) algorithm. We implemented a ML powered automatic organ classifier for CT datasets with a deep convolutional neural network (CNN) followed by an organ dose calculation. We labeled 16 different organs from axial views of CT images. The resultant classified organ was automatically mapped to the slab number of a mathematical phantom to determine the scan range of ImPACT CT dose calculator. This technique can be used for patient-specific organ dose estimation since the location and sizes of organs for each patient can be calculated independently.
CT Dose Estimation. John M. Boone, Ph.D., FAAPM, FSBI, FACR Professor and Vice Chair of Radiology. University of California Davis Medical Center
CT Dose Estimation John M. Boone, Ph.D., FAAPM, FSBI, FACR Professor and Vice Chair of Radiology 1 University of California Davis Medical Center CT Dose Estimation Introduction The CTDI Family of Metrics
More informationRadiation Dosimetry for CT Protocols
Radiation Dosimetry for CT Protocols This document contains radiation dosimetry information from CT scans and can be used by investigators to estimate the dosimetry information required by the JRSC or
More informationMeasurement of organ dose in abdomen-pelvis CT exam as a function of ma, KV and scanner type by Monte Carlo method
Iran. J. Radiat. Res., 2004; 1(4): 187-194 Measurement of organ dose in abdomen-pelvis CT exam as a function of ma, KV and scanner type by Monte Carlo method M.R. Ay 1, M. Shahriari 2, S. Sarkar 3, P.
More informationAssessment of effective dose in paediatric CT examinations
Assessment of effective dose in paediatric CT examinations E. Dougeni 1,2 CL. Chapple 1, J. Willis 1, G. Panayiotakis 2 1 Regional Medical Physics Department, Freeman Hospital, Freeman Road, Newcastle
More informationPatient / Organ Dose in CT
Patient / Organ Dose in CT Patient specific and organ dose estimation H.D. Nagel Dr. HD Nagel, Science & Technology for Radiology Buchholz / Germany www.sascrad.com 1 Topics CTDI & patient dose SSDE Organ
More informationComparison of organ doses estimations in radiology with PCXMC application based on MIRD phantoms and CALDose-X application based on voxel phantoms
Comparison of organ doses estimations in radiology with PCXMC application based on MIRD phantoms and CALDose-X application based on voxel phantoms G. Gialousis 1, Z. Pappouli 2, A. Dimitriadis 2, E. Karavassilis
More informationAn Assessment of Organ and Effective Dose of Patients who Undertake CT Examinations in two Teaching Hospitals of Mashhad&Isfahan
An Assessment of Organ and Effective Dose of Patients who Undertake CT Examinations in two Teaching Hospitals of Mashhad&Isfahan *M.T.Bahreyni Toossi, **S.Mohandes Dastgherdi Medical Physics Dep., Faculty
More informationNational Cancer Institute
National Cancer Institute A Dosimetry Summary of CT Participants in the National Lung Screening Trial (NLST) U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES National Institutes of Health AAPM 2015 Anaheim,
More informationAustin Radiological Association Nuclear Medicine Procedure PET SODIUM FLUORIDE BONE SCAN (F-18 NaF)
Austin Radiological Association Nuclear Medicine Procedure PET SODIUM FLUORIDE BONE SCAN (F-18 NaF) Overview Indication Sodium Fluoride F18 injection is a radioactive diagnostic agent for positron emission
More informationSkyscan 1076 in vivo scanning: X-ray dosimetry
Skyscan 1076 in vivo scanning: X-ray dosimetry DOSIMETRY OF HIGH RESOLUTION IN VIVO RODENT MICRO-CT IMAGING WITH THE SKYSCAN 1076 An important distinction is drawn between local tissue absorbed dose in
More informationCURRENT CT DOSE METRICS: MAKING CTDI SIZE-SPECIFIC
CURRENT CT DOSE METRICS: MAKING CTDI SIZE-SPECIFIC Keith Strauss, MSc, FAAPM, FACR Cincinnati Children s Hospital University of Cincinnati College of Medicine Acknowledgments John Boone, PhD Michael McNitt-Grey,
More informationThoracic examinations with 16, 64, 128 and 256 slices CT: comparison of exposure doses measured with an anthropomorphic phantom and TLD dosimeters
Thoracic examinations with 16, 64, 128 and 256 slices CT: comparison of exposure doses measured with an anthropomorphic phantom and TLD dosimeters Poster No.: C-2584 Congress: ECR 2015 Type: Scientific
More informationA more accurate method to estimate patient dose during body CT examinations with tube current modulation
A more accurate method to estimate patient dose during body CT examinations with tube current modulation Poster No.: C-0738 Congress: ECR 2014 Type: Scientific Exhibit Authors: A. Kawaguchi 1, Y. Matsunaga
More informationImpact of ICRP-89 Based Models on Dose Estimates for Radiopharmaceuticals and CT Exams
Impact of ICRP-89 Based Models on Dose Estimates for Radiopharmaceuticals and CT Exams Stabin MG, Kost SD, Clark JH, Pickens DR, Price RR, Carver DE Vanderbilt University Nashville, TN, USA 13th International
More informationCT Radiation Dosimetry Study Using Monte Carlo Simulation and. Computational Anthropomorphic Phantoms
CT Radiation Dosimetry Study Using Monte Carlo Simulation and Computational Anthropomorphic Phantoms by Yakun Zhang Graduate Program in Medical Physics Duke University Date: Approved: Ehsan Samei, Supervisor
More informationFAX, A FEMALE ADULT VOXEL PHANTOM FOR RADIATION PROTECTION DOSIMETRY
EFFECTIVE DOSE RATIOS FOR THE TOMOGRAPHIC MAX AND FAX PHANTOMS ******************************************************** EFFECTIVE DOSE RATIOS FOR TOMOGRAPHIC AND STYLIZED MODELS FROM > EXTERNAL EXPOSURE
More informationAustin Radiological Association Ga-68 NETSPOT (Ga-68 dotatate)
Austin Radiological Association Ga-68 NETSPOT (Ga-68 dotatate) Overview Ga-68 dotatate binds to somatostatin receptors, with highest affinity for subtype 2 receptors (sstr2). It binds to cells that express
More informationImpact of ICRP-89 Based Models on Dose Estimates for Radiopharmaceuticals and CT Exams. Stabin MG, Kost SD, Clark JH, Pickens DR, Price RR, Carver DE
Impact of ICRP-89 Based Models on Dose Estimates for Radiopharmaceuticals and CT Exams Stabin MG, Kost SD, Clark JH, Pickens DR, Price RR, Carver DE Vanderbilt University, Nashville, TN, USA Abstract New
More informationWhy is CT Dose of Interest?
Why is CT Dose of Interest? CT usage has increased rapidly in the past decade Compared to other medical imaging CT produces a larger radiation dose. There is direct epidemiological evidence for a an increase
More informationCalculation of Effective Doses for Radiotherapy Cone-Beam CT and Nuclear Medicine Hawkeye CT Laura Sawyer
Calculation of Effective Doses for Radiotherapy Cone-Beam CT and Nuclear Medicine Hawkeye CT Laura Sawyer Department of Medical Physics and Bioengineering, Royal United Hospital, Bath Overview Varian Acuity
More information8/1/2017. Financial Disclosures. Dose Tracking at MGH. How Dose Tracking Affected Protocol Optimization in a Tertiary Quaternary Healthcare Center
How Dose Tracking Affected Protocol Optimization in a Tertiary Quaternary Healthcare Center Mannudeep K. Kalra, MD Webster Center for Quality and Safety Massachusetts General Hospital Harvard Medical School
More informationESTABLISHING DRLs in PEDIATRIC CT. Keith Strauss, MSc, FAAPM, FACR Cincinnati Children s Hospital University of Cincinnati College of Medicine
ESTABLISHING DRLs in PEDIATRIC CT Keith Strauss, MSc, FAAPM, FACR Cincinnati Children s Hospital University of Cincinnati College of Medicine CT Dose Indices CTDI INTRODUCTION CTDI 100, CTDI w, CTDI vol
More information8/18/2011. Acknowledgements. Managing Pediatric CT Patient Doses INTRODUCTION
Managing Pediatric CT Patient Doses Keith J. Strauss, MSc, FAAPM, FACR President X-Ray Computations, Inc. Boston, Massachusetts Acknowledgements Marilyn Goske, MD John Boone, PhD Cynthia McCollough, PhD
More informationAccounting for Imaging Dose
Accounting for Imaging Dose High Profile Over-exposures Lead to Growing Concern FDA issues warning in October 2009-209 patients exposed to 8 times typical dose for CT brain perfusion scan (3-4 Gy) - Some
More informationCT Radiation Risks and Dose Reduction
CT Radiation Risks and Dose Reduction Walter L. Robinson, M.S. D.A.B.S.N.M., D.A.B.M.P., D.A.B.R. Consultant Certified Medical Radiation Health & Diagnostic Imaging Physicist Medical Radiation and Children
More informationAssessment of radiation risk to pediatric patients undergoing conventional X-ray examinations
Radioprotection 50(1), 19-25 (2015) c EDP Sciences 2015 DOI: 10.1051/radiopro/2014023 Available online at: www.radioprotection.org Article Assessment of radiation risk to pediatric patients undergoing
More informationJHM-IRB Guidelines for Radiation Statements
JHM-IRB Guidelines for Radiation Statements When a participant in a research study is subjected to ionizing radiation exposure (other than that which is incidental for the standard medical management of
More informationRadiation Dose Reduction Strategies in Coronary CT Angiography
Radiation Dose Reduction Strategies in Coronary CT Angiography Noor Diyana Osman, PhD noordiyana@usm.my Contents: Introduction Radiation dosimetry in CT Radiation risk associated with coronary CT angiography
More informationDianna Cody, PhD, DABR, FAAPM Professor & Clinical Operations Director Imaging Physics U.T. M.D. Anderson Cancer Center Houston, TX
Dianna Cody, PhD, DABR, FAAPM Professor & Clinical Operations Director Imaging Physics U.T. M.D. Anderson Cancer Center Houston, TX Learning Objectives: Limitations for estimating patient dose for CT Methods
More informationState of the art and future development for standardized estimation of organ doses in CT
State of the art and future development for standardized estimation of organ doses in CT March 2015 William J. O Connel, Dr. Ph, Senior Medical Physicist Imagination at work. Agenda Introduction Duke Florida
More informationIMPC phenotyping SOPs in JMC
IMPC phenotyping SOPs in JMC Tissue Embedding and Block Banking IMPC_BLK_001 Purpose Collect and fix a standard list of tissues from the complete necropsy (see IMPC Gross Pathology & Tissue Collection
More informationEstimation of Effective Doses for Radiation Cancer Risks on ISS, Lunar and Mars Missions with Space Radiation Measurements
Estimation of Effective Doses for Radiation Cancer Risks on ISS, Lunar and Mars Missions with Space Radiation Measurements Myung-Hee Y. Kim Wyle Laboratories, Houston, Texas, 77058 and Francis A. Cucinotta
More informationDosimetry of recently introduced CBCT Units for Oral and Maxillofacial Radiology
Dosimetry of recently introduced CBCT Units for Oral and Maxillofacial Radiology John B Ludlow, Laura E Davies-Ludlow, André Mol University of North Carolina, Chapel Hill, NC Background CBCT is seeing
More informationA multicentric study on patient dose in multislice CT
A multicentric study on patient dose in multislice CT A.Stratis 1, M.Molfetas 1, S.Kottou 2, A.Louizi 2 1. Medical Physics department, Evangelismos General hospital of Athens, Athens, Greece 2. Medical
More information3 rd International Symposium on the System of Radiological Protection Seoul, October John Harrison
3 rd International Symposium on the System of Radiological Protection Seoul, October 2015 John Harrison UK Task Group 79 : Use of Effective Dose as a Risk-related Radiological Protection Quantity John
More informationPHY138Y Nuclear and Radiation
PHY38Y Nuclear and Radiation Professor Tony Key MP40 key@physics.utoronto.ca Announcements MP problems set #4 due Sunday at midnight PS#5 WRITTEN now posted! - do in teams, no Lone Wolves!! NB correction
More informationMT09 - Normal Human Tissue Microarray, FDA
Reveal Biosciences offers Histochemical Staining, Immunohistochemistry (IHC), In Situ Hybridization (ISH), Whole Slide Imaging, and Quantitative Image Analysis on any TMA MT09 - Normal Human Tissue Microarray,
More informationEstimated Radiation Dose Associated With Low-Dose Chest CT of Average-Size Participants in the National Lung Screening Trial
Medical Physics and Informatics Original Research Larke et al. Estimated Radiation Dose for Low-Dose Chest CT Medical Physics and Informatics Original Research Frederick J. Larke 1 Randell L. Kruger 2
More informationAn Update of VirtualDose Software Used for Assessing Patient Organ Doses from CT Examinations
An Update of VirtualDose Software Used for Assessing Patient Organ Doses from CT Examinations Aiping Ding, X. George Xu Rensselaer Polytechnic Institute Troy, NY USA http://rrmdg.rpi.edu 1 Acknowledgements
More informationDoses from pediatric CT examinations in Norway Are pediatric scan protocols developed and in daily use?
Doses from pediatric CT examinations in Norway Are pediatric scan protocols developed and in daily use? Eva Godske Friberg * Norwegian Radiation Protection Authority, P.O. Box, Østerås, Norway Abstract.
More informationA Real-Time Monte Carlo System for Internal Dose Evaluation Using an Anthropomorphic Phantom with Different Shapes of Tumors Inserted
A Real-Time Monte Carlo System for Internal Dose Evaluation Using an Anthropomorphic Phantom with Different Shapes of Tumors Inserted J. Wu, S. J. Chang, B. J. Chang, I. J. Chen, J. H. Chiu Health Physics
More informationPatient Dose Estimates. from CT Examinations. Patient Dose Estimates
Patient Dose Estimates from CT Examinations Patient Dose Estimates from CT Examinations John M. Boone, Ph.D. Professor and Vice Chairman of Radiology Professor of Biomedical Engineering University of California,
More informationOverview of Anatomy & Physiology
Overview of Anatomy & Physiology Anatomy the study of the structure of body parts and their relationships to one another Gross or macroscopic Microscopic Developmental Physiology the study of the function
More informationRegional diagnostic reference levels and collective effective doses from CT scanners in India
Regional diagnostic reference levels and collective effective doses from CT scanners in India Roshan S Livingstone and Paul M Dinakaran Department of Radiology Christian Medical College, Vellore, S India
More informationLaboratory Investigation 24A Chapter 24A: Human Skin
Name Class Date Station # Laboratory Investigation 24A Chapter 24A: Human Skin Human Anatomy & Physiology: Integumentary System You may refer to pages 415-421 in your textbook for a general discussion
More informationTracking Doses in the Pediatric Population
Tracking Doses in the Pediatric Population Frederic H. Fahey DSc Boston Children s Hospital Harvard Medical School frederic.fahey@childrens.harvard.edu Disclosures Sadly, none that pay me any money! SNMMI
More informationSOMATOM Drive System Owner Manual Dosimetry and imaging performance report
www.siemens.com/healthcare SOMATOM Drive System Owner Manual Dosimetry and imaging performance report Table of contents 1 Dosimetry and imaging performance report 5 1.1 Dose information 5 1.1.1 General
More informationAsk EuroSafe Imaging Tips & Tricks. CT Working Group
Ask EuroSafe Imaging Tips & Tricks CT Working Group Organ Based Tube Current Modulation to Reduce Radiation Dose to Superficial Radiosensitive Organs Eileen Kelly (Galway University Hospitals, IE) Matthias
More information2005 RECOMMENDATIONS OF ICRP
IRPA 11 11 th International Congress of the International Radiation Protection Association 23 28 May 2004, Madrid, Spain 2005 RECOMMENDATIONS OF ICRP ROGER H CLARKE CHAIRMAN FEATURES OF RECOMMENDATIONS
More informationOrgan Dose Variability with Gender, Age and BMI
Organ Dose Variability with Gender, Age and BMI Dr Ted Lazo CRPPH Scientific Secretariat Article 31 Meeting, 17 May 2017, Luxembourg Background The ICRP system uses a generalised, gender and age averaged
More informationEstimating Testicular Cancer specific Mortality by Using the Surveillance Epidemiology and End Results Registry
Appendix E1 Estimating Testicular Cancer specific Mortality by Using the Surveillance Epidemiology and End Results Registry To estimate cancer-specific mortality for 33-year-old men with stage I testicular
More informationToshiba Aquillion 64 CT Scanner. Phantom Center Periphery Center Periphery Center Periphery
Comparison of radiation dose and imaging performance for the standard Varian x-ray tube and the Richardson Healthcare ALTA750 replacement tube for the Toshiba Aquillion CT scanners. by Robert L. Dixon,
More informationDual-Energy CT: The Technological Approaches
Dual-Energy CT: The Technological Approaches Dushyant Sahani, M.D Director of CT Associate Professor of Radiology Massachusetts General Hospital Harvard Medical School Email-dsahani@partners.org Disclosure
More informationHomework Packet. The branch of biological science that studies and describes how body parts. The study of the shape and structure of body parts
Anatomy & Physiology Chap. 1: The Human Body Name Block: P/W Homework Packet ANATOMY & PHYSIOLOGY DISTINCTIONS 1. Match the term on the right to the appropriate description on the left. Enter the correct
More informationMedical Physics and Informatics Original Research
Medical Physics and Informatics Original Research Christner et al. Estimating Effective Dose for CT Medical Physics and Informatics Original Research FOCUS ON: Jodie A. Christner 1 James M. Kofler Cynthia
More informationCone Beam CT Protocol Optimisation for Prostate Imaging with the Varian Radiotherapy OBI imaging system. Dr Craig Moore & Dr Tim Wood
Cone Beam CT Protocol Optimisation for Prostate Imaging with the Varian Radiotherapy OBI imaging system Dr Craig Moore & Dr Tim Wood Background With the increasing use of CBCT imaging alongside complex
More informationWhole-body biodistribution and radiation dosimetry estimates for the β-amyloid radioligand [ 11 C]MeS-IMPY in non-human primates
Whole-body biodistribution and radiation dosimetry estimates for the β-amyloid radioligand [ 11 C]MeS-IMPY in non-human primates Molecular Imaging Branch, NIMH Bldg. 1 Rm. B3-10 September 6 th, 2006 The
More informationBreast Cancer PET/CT Imaging Protocol
Breast Cancer PET/CT Imaging Protocol Scanning Protocol: Patients are scanned from the top of the neck through the pelvis. Arms-up position is used to avoid beam-hardening artifact in the chest and abdomen.
More informationEstimating Patient Radiation Dose from Computed Tomography
Estimating Patient Radiation Dose from Computed Tomography C. Cagnon, J. DeMarco, E. Angel, M. McNitt-Gray UCLA David Geffen School of Medicine 1 Patient Dose from CT Advances in Technology... Helical
More informationFetal Dose Calculations and Impact on Patient Care
Fetal Dose Calculations and Impact on Patient Care Matt Hough, MS, DABR, DABMP Florida Hospital Diagnostic Medical Physics and Radiation Safety Resource ACR-SPR Practice Parameter for Imaging Pregnant
More informationICRP Symposium on the International System of Radiological Protection
ICRP Symposium on the International System of Radiological Protection October 24-26, 2011 Bethesda, MD, USA M. Balonov, ICRP Committee 2, IRH, Russia P. Shrimpton, HPA, UK To be used just for regulatory
More informationICRP Recommendations Evolution or Revolution? John R Cooper Main Commission
ICRP Recommendations Evolution or Revolution? John R Cooper Main Commission 3 September 2009 ICRP Recommendations 1. Reasons for new Recommendations 2. Summary of health risks 3. Summary of changes to
More informationRecent Progress in Radiation Dosimetry for Epidemiology and Radiological Protection. John Harrison ICRP Committee 2
Recent Progress in Radiation Dosimetry for Epidemiology and Radiological Protection John Harrison ICRP Committee 2 Joint ICRP-RERF-JHPS Workshop: Tokyo, December 2017 Task Group 79 : Use of Effective Dose
More informationLab Monitor Images Dissection of the Abdominal Vasculature + Lower Digestive System
Lab Monitor Images Dissection of the Abdominal Vasculature + Lower Digestive System Stomach & Duodenum Frontal (AP) View Nasogastric tube 2 1 3 4 Stomach Pylorus Duodenum 1 Duodenum 2 Duodenum 3 Duodenum
More informationMedical Diagnostic Imaging
Medical Diagnostic Imaging Laboratories Medical Diagnostic Imaging Lab Name Location Person in Charge Programs Served Courses Served Patient Care and Management (2) Introduction to MDI Radiographic Technique
More informationChapter 3 General Anatomy and Radiographic Positioning Terminology General Anatomy
Chapter 3 General Anatomy and Radiographic Positioning Terminology General Anatomy Definition of Terms Anatomy- term applied to the science of the structure of the body Physiology- study of the function
More informationImplementation & optimization of a lung cancer screening CT program. Presented by Izabella Barreto at the 2016 Florida AAPM Chapter Meeting
Implementation & optimization of a lung cancer screening CT program Presented by Izabella Barreto at the 2016 Florida AAPM Chapter Meeting Izabella Barreto, Nathan Quails, Catherine Carranza, Nathalie
More informationCS 6824: Tissue-Based Map of the Human Proteome
CS 6824: Tissue-Based Map of the Human Proteome T. M. Murali November 17, 2016 Human Protein Atlas Measure protein and gene expression using tissue microarrays and deep sequencing, respectively. Alternative
More informationRadiation Dose To Pediatric Patients in Computed Tomography in Sudan
Radiation Dose To Pediatric Patients in Computed Tomography in Sudan Omer Osman,Saeed Medical Physics Department, ALNeelain University, Sudan Presentation outlines Introduction Objectives Materials and
More informationCT Dosimetry in the Clinical Environment: Methods and Analysis
CT Dosimetry in the Clinical Environment: Methods and Analysis Manuel Arreola, Ph.D. DABR Associate Chair of Radiology Director, Medical Physics Graduate Program Department of Radiology University of Florida
More informationNervous System. Skeletal System. Muscular System. Reproductive System. Circulatory System. Endocrine System. Respiratory System. Integumentary System
The Human Body Skeletal System Muscular System Circulatory System Respiratory System Digestive System Nervous System Reproductive System Endocrine System Integumentary System Excretory System Lymphatic/Immune
More informationCalculation of Normalised Organ and Effective Doses to Adult Reference Computational Phantoms from Contemporary Computed Tomography Scanners
Progress in NUCLEAR SCIENCE and TECHNOLOGY, Vol. 2, pp.165-171 (2011) ARTICLE Calculation of Normalised Organ and Effective Doses to Adult Reference Computational Phantoms from Contemporary Computed Tomography
More informationAbdomen and Pelvis CT (1) By the end of the lecture students should be able to:
RAD 451 Abdomen and Pelvis CT (1) By the end of the lecture students should be able to: State the common indications for Abdomen and pelvis CT exams Identify possible contra indications for Abdomen and
More informationLECTURE TOPIC ASSIGNMENTS
BASICS LECTURE TOPIC ASSIGNMENTS LECTURE TOPIC: ANATOMICAL TERMINOLOGY Read the textbook: Ch. 1: The Human Body: An Orientation Go To: Web Site > Folder: AnatTerm > A25terms09.pdf. Download the file &
More informationOVARIES URETER FALLOPIAN TUBES BLADDER UROGENITAL OPENINGS (BOTH SEXES) PENIS VAGINA UTERUS
URETER OVARIES FALLOPIAN TUBES BLADDER UROGENITAL OPENINGS (BOTH SEXES) PENIS VAGINA UTERUS REPRODUCTIVE PRODUCE FEMALE HORMONES EXCRETORY FROM KIDNEY TO BLADDER EXCRETORY STORES URINE REPRODUCTIVE TRANSPORTS
More informationAcknowledgments. A Specific Diagnostic Task: Lung Nodule Detection. A Specific Diagnostic Task: Chest CT Protocols. Chest CT Protocols
Personalization of Pediatric Imaging in Terms of Needed Indication-Based Quality Per Dose Acknowledgments Duke University Medical Center Ehsan Samei, PhD Donald Frush, MD Xiang Li PhD DABR Cleveland Clinic
More informationAnatomical Terminology
Anatomical Terminology Dr. A. Ebneshahidi Anatomy Anatomy : is the study of structures or body parts and their relationships to on another. Anatomy : Gross anatomy - macroscopic. Histology - microscopic.
More informationCells Tissues Organs Organ Systems Organism. Cells: the smallest unit of life.
Cells Tissues Organs Organ Systems Organism Cells: the smallest unit of life. The Circulatory Systems brings oxygen, nutrients and hormones to cells; fights infections; removes cell wastes; regulates
More informationOutline. Lifetime Attributable Risk 10 mgy in 100,000 exposed persons (BEIR VII 2006) SPECT/CT and PET/CT Dosimetry
SPECT/CT and PET/CT Dosimetry Lifetime Attributable Risk 10 mgy in 100,000 exposed persons (BEIR VII 2006) All Solid Tumors Leukemia Frederic H. Fahey DSc Male Female Male Female Children s Hospital Boston
More informationICRP = International Commission on. recommendations and guidance on. Functioning since 1928.
ICRP = International Commission on Radiological Protection; An advisory body providing recommendations and guidance on radiation protection; Functioning since 1928. While the use of ionising radiation
More informationConventional and spiral CT dose indices in Yazd general hospitals, Iran
Iran. J. Radiat. Res., 2006; 3 (4): 183-189 Conventional and spiral CT dose indices in Yazd general hospitals, Iran F. Bouzarjomehri 1*,M.H.Zare 2, D. Shahbazi 2 1 Department of Medical Physics, Shahid
More informationProf. Dr. Doğan BOR Ankara University Institute of Nuclear Science
PATIENT DOSIMETRY IN DIAGNOSTIC RADIOLOGY MODALITIES Prof. Dr. Doğan BOR Ankara University Institute of Nuclear Science Ankara University Institute of Nuclear Science USE OF RADIATION! INCREASING? Natural
More informationReview of 10 major human body systems using a puzzle technique. Systems Shuffle. By: Heidi Hisrich of The Dork Side
Review of 10 major human body systems using a puzzle technique Systems Shuffle By: Heidi Hisrich of The Dork Side Teaching students about the different human body systems is one of my favorite things to
More informationAnatomy. Contents Brain (Questions)
Anatomy 12 Contents 12.1 Brain (Questions).................................................... 683 12.2 Head and Neck (Questions)............................................. 685 12.3 Thorax (Questions)...................................................
More informationUltralow Dose Chest CT with MBIR
Ultralow Dose Chest CT with MBIR Ella A. Kazerooni, M.D. Professor & Director Cardiothoracic Radiology Associate Chair for Clinical Affairs University of Michigan Disclosures Consultant: GE Healthcare
More informationAAPM Task Group 180 Image Guidance Doses Delivered During Radiotherapy: Quantification, Management, and Reduction
AAPM Task Group 180 Image Guidance Doses Delivered During Radiotherapy: Quantification, Management, and Reduction Parham Alaei, Ph.D. Department of Radiation Oncology University of Minnesota NCCAAPM Fall
More informationHuman Anatomy Key Points Unit 1/ Study Guide
Human Anatomy Key Points Unit 1/ Study Guide I. Anatomy and Physiology a. Anatomy 1. Means cutting apart (dissection) 2. Study of the body and the relationships of its parts to each other. 3. Dissection
More informationDoses from Cervical Spine Computed Tomography (CT) examinations in the UK. John Holroyd and Sue Edyvean
Doses from Cervical Spine Computed Tomography (CT) examinations in the UK John Holroyd and Sue Edyvean Why a new dose survey? Number of enquires received concerning the current NDRL Concern that could
More informationChief Radiographer TEI Clinical Associate 2016
MDCT Principles i and Applications Ε ΑGADAKOS MSc Ε. ΑGADAKOS MSc Chief Radiographer TEI Clinical Associate 2016 Aim To understand d recent technological advances in MSCT and how they can be effectively
More informationHow do the Parameters affect Image Quality and Dose for Abdominal CT? Image Review
How do the Parameters affect Image Quality and Dose for Abdominal CT? Image Review Mannudeep K. Kalra, MD, DNB Massachusetts General Hospital Harvard Medical School Financial Disclosure This presentation
More informationRadiation Safety Information for Students in Courses given by the Nuclear Physics Group at KTH, Stockholm, Sweden
Radiation Safety Information for Students in Courses given by the Nuclear Physics Group at KTH, Stockholm, Sweden September 2006 The aim of this text is to explain some of the basic quantities and units
More informationSPECIFIC PRINCIPLES FOR DOSE REDUCTION IN HEAD CT IMAGING. Rajiv Gupta, MD, PhD Neuroradiology, Massachusetts General Hospital Harvard Medical School
SPECIFIC PRINCIPLES FOR DOSE REDUCTION IN HEAD CT IMAGING Rajiv Gupta, MD, PhD Neuroradiology, Massachusetts General Hospital Harvard Medical School OUTLINE 1 st Presentation: Dose optimization strategies
More informationRadiological Protection Countermeasures after TEPCO Fukushima NPP Accident -Who should play the role of risk communication-
Radiological Protection Countermeasures after TEPCO Fukushima NPP Accident -Who should play the role of risk communication- Yasuhito Sasaki, M.D., Ph.D. Japan Radioisotope Association 26 th, Nov. 2011
More informationWhat Have We Learned from Children? Donald P. Frush, MD
What Have We Learned from Children? Donald P. Frush, MD Medical Radiation and Children: Accomplishments We can lower doses (read noisier exams) We should lower doses Multiphase exams should be justified
More informationCHAPTER 3 BASIC ANATOMY AND PHYSIOLOGY
CHAPTER 3 BASIC ANATOMY AND PHYSIOLOGY SURFACE ANATOMY Surface anatomy is the identification of landmarks on the surface of the skin which allows us to compare our knowledge of our own surface anatomy
More informationCT Optimisation for Paediatric SPECT/CT Examinations. Sarah Bell
CT Optimisation for Paediatric SPECT/CT Examinations Sarah Bell Sarah.bell14@nhs.net Outline 1. Introduction 2. Aims and Objectives 3. Methods 4. Results 5. Discussion 6. Conclusions 7. References Introduction
More informationComputed tomography Acceptance testing and dose measurements
Computed tomography Acceptance testing and dose measurements Jonas Andersson Medical Physicist, Ph.D. Department of Radiation Sciences University Hospital of Norrland, Umeå Sweden Contents The Computed
More informationList by Region - Visceral Anomalies
1 List by Region - Visceral Anomalies General Terms 10127 Situs inversus 80,00 10125 Aneurysm 68,42 10126Fluid-filled abdomen -35,00 Brain 10131 Hydrocephaly 10128 Dilated cerebral ventricle 20,00 10132
More informationBody Systems Notes. Nervous, Integumentary, Immune/Lymphatic, Circulatory, Skeletal, Respiratory, Digestive, Excretory, Endocrine, Reproductive
Body Systems Notes Nervous, Integumentary, Immune/Lymphatic, Circulatory, Skeletal, Respiratory, Digestive, Excretory, Endocrine, Reproductive Homeostasis: maintaining a balance. Examples: temperature,
More informationHuman Anatomy & Physiology
Human Anatomy & Physiology Overview of Anatomy and Physiology Anatomy the study of the structure of the body and the relationships of the various parts of the body Gross/Macroscopic Anatomy (visible structures)
More information