BREAST:BREAST SONOGRAPHYULTRA SOUND REGISTRY EXAM REVIEW QUESTIONS WITH ANSWERS

BREAST:BREAST SONOGRAPHYULTRA SOUND REGISTRY EXAM REVIEW QUESTIONS WITH ANSWERS What is an appropriate depth to image the breast on US? - ANSWER - 3-6cm A rectangular shape FOV eliminates - ANSWER -divergence artifact While trapezoidal FOV increases imaging area, it decreases - ANSWER -lateral resolution in the far field What does a targeted exam evaluate? - ANSWER -only a specific area of the breast What does a survey exam evaluate? - ANSWER -the entire breast for abnormalities Breast sonography is NOT what? - ANSWER -a screening tool for breast cancer! When would a curvilinear array be needed? - ANSWER -1. deep structures 2. pathology is too large for the linear FOV 3. imaging large breasts What is a pitfall of using a curvilinear array? - ANSWER measurements may be skewed by beam divergence Which pathologies should change shape with compression? (2) - ANSWER -1. benign cysts 2. lipomas What pathologies will not change shape with compressions? - ANSWER -malignancies Compression of scar tissue will decrease - ANSWER -tissue thickness and ultimately posterior shadowing When might you need to reduce probe pressure? - ANSWER visualizing blood flow in superficial masses and veins What type of mass is more than 30% compressible? - ANSWER -fatty lesions: a normal lobule or a lipoma What is ballottement? - ANSWER -alternating compression and release When can ballottement be helpful? - ANSWER -demonstrating the mobility of echoes in ducts or cysts What are maneuvers for evaluating the nipple or ductal system? (4) - ANSWER -1. peripheral compression 2. rolled nipple technique 3. two-handed compression 4. stand off pad Peripheral compression (3) - ANSWER -1. transducer in radial position 2. apply pressure to peripheral end (farthest from nipple) while keeping contact with the breast 3. slide probe to move nipple to the side What does peripheral compression reduce? - ANSWER -nipple shadowing Peripheral compression is helpful in evaluating (2) - ANSWER -1. patients with nipple discharge 2. ductal extension of a malignancy near the nipple Rolled nipple technique - ANSWER -1. put probe over nipple and compress to reduce air 2. roll nipple to the side The rolled nipple technique is helpful in evaluating (2) - ANSWER -1. patients with nipple discharge 2. ductal extension of a malignancy near the nipple