Optimizing Breast Sonography

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1 Optimizing Breast Sonography Cindy Rapp BS, RDMS, FSDMS, FAIUM Denver, Colorado

2 Breast Sonography general goal to make a more specific diagnosis than can be made with clinical and mammographic findings alone

3 Breast Sonography specific goals prevent unnecessary biopsies prevent F/U mammograms guide interventional procedures improve clinical and mammographic interpretive skills find malignancies missed by clinical and/or mammographic exams

4 BUS indications -- all

5 Breast Sonography Proper Equipment

6 Breast Sonography Equipment Requires a near-field high resolution probe Spatial resolution axial resolution lateral resolution Contrast Resolution

7 Breast Sonography Equipment Lateral resolution minimize volume averaging Two planes long axis short axis or elevation plane

8 E L E V A T I O N P L A N E Breast Sonography elevation plane

9 ELEVATION PLANE FOCUS 10 MHz FL 1.5 CM Equipment lateral resolution S U B Q F A T 5 MHz FL 3.5 CM 3 CM M A M M A R Y Z O N E R E T R O M A M M A R Y PECTORALIS LUNG

10 Elevation Plane Focus SKIN Elevation Plane Focus 1.5 CM SKIN Elevation Plane Focus 1.5 CM

11 Patient Positioning right breast LPO Supine LLD

12 hand behind head thins breast and improves angles

13 Scan Planes Radial Anti-Radial LT A A RAD B B C AR C

14 Scan Planes Radial Anti-Radial

15 Ductal system Radial Anti-Radial

16 Breast Sonography normal anatomy SKIN COOPERS LIGAMENTS SUBQ FAT PRE-MAMMARY FASCIA MAMMARY ZONE RETROMAMMARY FASCIA RETROMAMMARY ZONE PECTORALIS

17 Normal Anatomy

18 apparent duct duct plus isoechoic loose periductal stromal fibroelastic tissue

19 duct ectasia virtual variant of normal

20 Breast Sonography Mammographic Sonographic Correlation

21 Breast Sonography Mammographic Densities: fat calcium water

22 Breast Sonography Mammographic Densities Water density: cyst fibrous tissue glandular tissue solid nodule muscle / skin

23 Mammographic-Sonographic Correlation Fatty Tissue RCC LCC

24 Mammographic-Sonographic Correlation Glandular Tissue RCC LCC

25 Mammographic-Sonographic Correlation Fibrous Tissue RCC LCC

26 Breast Sonography Mammographic Sonographic Correlation size shape location surrounding tissue density

27 Breast Sonography Mammographic - Sonographic Correlation Size Must take into account all that is water density

28 Breast Sonography Mammographic - Sonographic Correlation Size Always include the capsule

29 mammographic sonographic correlation size -- water density = fibrous pseudomass

30 Mammographic - Sonographic Correlation Shape 90 rotation difference

31 Mammographic - Sonographic Correlation Shape 90 rotation difference

32 Breast Sonography Mammographic - Sonographic Correlation Shape & Location Mamms compression pulls long axis perpendicular to chest wall U/S compression pushes long axis parallel to chest wall

33 mammographic-sonographic correlation location -- always closer to chest wall on US

34 Mammographic-Sonographic Correlation shape and surrounding tissue BIRADS - 4 BIRADS - 2

35 Mammographic-Sonographic Correlation if you can t find it it s solid!! -- look for capsule

36 Breast Sonography System Optimization

37 Breast Sonography

38 Breast Sonography Always Set Fat Medium Gray

39 Breast Sonography Fat set as Black Fat set as GRAY

40 Breast Sonography High-Grade Invasive Ductal Carcinoma

41 Breast Sonography Palpable Nodules

42 DIAGNOSTIC BREAST ULTRASOUND PALPABLE ABNORMALITY Specific goal #1 Can prevent biopsy by showing: Conservative Aggressive Simple cyst Fibrous pseudomass Complex cyst (most) Fibroadenoma

43 Breast Sonography Palpable Lump when the indication is palpable lump, you must palpate while scanning for larger lesions, roll finger under the probe while scanning

44 Palpable Lump Normal Fibro-Glandular Tissue

45 Palpable Lump Tension Cyst Lazy Cyst

46 Breast Sonography Simultaneous Palpation and Scanning Simple Cyst Fibroadenoma

47 Breast Sonography Standoff Pads

48 Gel standoff

49 Gel Standoff

50 Near-field Volume Averaging Palpable Lump 5 mm deep no stand-off focal zone too deep gel stand-off focal zone correct

51 Breast Sonography Split-Screen Imaging

52 Breast Sonography For Asymmetric Density Split-Screen Mirror Images

53 Breast Sonography Split Screen Mirror Images RT LT

54 Breast Sonography Split screen with and w/o compression

55 Breast Sonography Split Screens with & w/o compression for compressibility > 30% compressible - fat, lipoma 0-25% compressible - FA 0-15% compressible - CA

56 Compressibility Split-Screen Comparison X + + Lipoma X

57 Breast Sonography Fibroadenoma or Fat Lobule?

58 Breast Sonography 3 maneuvers to prove fat lobule 1) Compressibility - 30% 2) Rotate 3) Line

59 Breast Sonography Variable Compression 2D Imaging

60 Breast Sonography Split screens with & w/o compression

61 Breast Sonography Split screen with and w/o compression for rotation rotation - FA no rotation - CA

62 Breast Sonography Fibroadenoma

63 Breast Sonography Compression eradicates artifactual shadowing

64 Breast Sonography Compression eradicates artifactual shadowing

65 Breast Sonography Cancer next to cyst

66 Breast Sonography Artifactual Shadowing

67 Breast Sonography Which one is a cancer?

68 Breast Sonography Artifactual Shadowing

69 Breast Sonography Variable Compression Technique Color & Doppler

70 Variable Compression Technique Fibroadenoma

71 Variable Compression Technique Color Doppler

72 Variable Compression Technique Power Doppler

73 Breast Cysts Interpretive difficulties With improved resolution Cysts which appeared to be simple on older lower resolution equipment, may appear to have internal echoes on newer higher resolution equipment. Problem we have been taught that any cyst with internal echoes must be classified as a complex cyst and that all complex cysts are worrisome.

74 Breast Cysts

75 Breast Cysts Acorn cyst Foam cyst

76 Breast Cysts

77 complex cysts with streaming echoes cholesterol crystals

78 complicated cysts with color streaking cholesterol crystals

79 Breast Cysts Color Doppler

80 Breast Cyst Pre-aspiration Post-aspiration Foam Cyst FA

81 Breast Cysts Interpretive difficulties: These are not artifactual echoes but represent proteinaceous debris cholesterol crystals floating foamy macrophages floating papillary apocrine metaplasia Pathologist classify these findings as part of the spectrum of fibrocystic change

82 Breast Cyst Fluid Debris Level Supine Upright

83 Thin septations Breast Cyst

84 Thick septations Breast Cyst

85 Breast Cyst Eccentric Wall Thickening Acorn Cyst ICP ICP-CA

86 Breast Cyst Thick wall - Thin wall Inflamed cyst

87 Color Doppler Cystic lesions

88 cluster of cysts or solid? medullary carcinoma

89 Other breast tumors pseudo-cystic lesions lymphoma metaplastic carcinoma some high grade IDCA metastatic lesions Metastatic IML

90 Mammographic nodule complex cyst? Metastasis - uterine Leiomyosarcoma

91 Breast Sonography Fremitus Power Doppler Thrill felt by humming

92 Fremitus

93 Fremitus Multifocal Carcinoma

94 Isoechoic Lesion FA or Fat Lobule

95 Breast Sonography When is Fremitus helpful? Multifocal disease Isoechoic lesions Artifactual shadowing 12 Apostles - Australia

96 Fremit us Multifocal carcinoma Artifactual shadowing

97 Bear-ly visible Fremitus

98 Fremitus Multifocal carcinoma

99 Once you understand Breast Sonography, you ll love it!

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