Official Proceedings - AIUM

American Institute of Ultrasound in Medicine Proceedings J Ultrasound Med 32(suppl):S1–S134, 2013models for the strain data provided smoothly varying curves that are easilyinterpreted and compare favorably to results anticipated based on physiologicconsiderations.Conclusions—Bayesian probability-based methods appear toprovide an approach that shows promise for providing objective, operatorindependentanalysis of clinical myocardial strain and strain rate data alongwith significant reductions in the amount of time required of the cardiologistanalyzing the data. (Supported by National Institutes of Health grantR21 HL106417.)1539642 Sonographic Characterization of KeloidsXimena Wortsman, 1 * Nelson Lobos 2 1 Radiology, Dermatology,Clinica Servet, Faculty of Medicine, 2 Health Sciences, Universityof Chile, Santiago, ChileObjectives—To assess the sonographic morphology of keloids.Methods—A retrospective review of keloids that were sonographicallydiagnosed and confirmed by histology was performed (September2009–August 2012). Data on extension (millimeters), location,blood flow (activity), deeper layer involvement, and accompanying fistulaswere analyzed.Results—Twenty-five keloids in 20 patients (50% female [n =10], 50% male [n = 10]; total mean age, 26 years [22 years females and30 years old for males]; age range, 4–66 years) were found. Number of lesionsper patient: 1 lesion, 85% (n = 17); 2 lesions, 10% (n = 2); multiplelesions (≥3 lesions), 5% (n = 1). Body segment location of lesions: anteriorthorax, 24% (n = 6); upper extremity, 24% (n = 6); face, 20% (n = 5);lower extremity, 12% (n = 3); submandibular region, 12% (n = 3); dorsalregion, 4% (n = 1); epigastric region, 4% (n = 1). Layer location of lesions:dermis, 84% (n = 21); epidermis and dermis, 8% (n = 2); dermis andhypodermis, 4% (n = 1); epidermis, 4% (n = 1). Echo structure: hypo -echoic, 84% (n = 21); heterogeneous, 16% (n = 4). A linear pattern waspresent in 20% (n = 5) of keloids. Fistulas within the lesions were observedin 8% (n = 2) of cases. Mean size: transverse axis, 22.58 mm(range, 7.1–69.1 mm); thickness, 5.79 mm (range, 2–17.5 mm); longitudinal,24.77 mm (range, 6.2–66 mm). Mean area: 2596.65 mm 2 (range,59.92–12922.07 mm 2 ). Vascularity was detected in 60% (n = 15) of lesions,and 100% of these lesions demonstrated a peak systolic velocityof arterial vessels