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12 Cards in this Set
- Front
- Back
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What are indications for breast sonography?
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- palpable mass in women under 30 and in pregnant or lactating women -identificationa and characterization of palpable and nonpalpable abnormalities -evaluation and characterization of mammo findings or other imaging exam -evaluation of problems associated with breast implants -treatment planning for radiation therapy |
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What are advantages of breast imaging with US?
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-no radiation -painless -accurate differentiation b/w solid and cystic mass -relatively low cost exam -allows imaging close to ches wall -Doppler capabilities allow detection of blood flow |
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Disadvantages of breast imaging with US?
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-highly operator dependent -limited ability to detect microcalcifications -overlap in imaging features of some benign and malignant masses -artifacts and some normal structures can simulate patho |
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What is a targeted breast US?
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limited to area of mammographic or clinical concern |
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What are some indications for a whole breast or complete exam include? |
-breast secretions -high risk pt with radiographic dense breast -search for satellite lesions in pt with known breast concern -silicone leakage associated with implant rupture -search for primary lesion -pt who refuses mammo -follow up sono or mammo masses |
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What pt position is best for evaluating the outer breast.
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supine oblique
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Antiradial scans are _________ to the corresponding radial plane.
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perpendicular
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What is the Two-handed peripheral compression technique?
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-brins the subareolar duct into a scan plane more parallel to the skin and also compresses the duct
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How do you perform the Two-handed peripheral compression technique?
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-orient transducer along axis of duct -place the nonscanning hand on opposite side of breast by subareolar tissues -press transducer down alonf the breast tissue and slide distally to include the nipple, while applying pressure with opposite hand |
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What is the rolled-nipple technique?
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allows the subareolar duct to be followed and imaged as it passes through the nipple allowing demonstrations of an intraductal mass |
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How do you perform the rolled-nipple technique?
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-place transducer at the edge of the nipple in a radial plane parallel to the long axis of the duct -place index finger of nonscanning hand on opposite side of the nipple from the transducer -apply light transducer presssure to force the nipple onto its side over the index finger |
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Fremitus refers to?
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"thrill" of the chest wall when pt vocalizes
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