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Purpose The purpose of the study was to develop an accurate and reproducible method for detecting low spinal bone density on abdominal CT images. Methods For this IRB-approved HIPAA-compliant single-center retrospective study, nonenhanced CT images of the lower abdomen were obtained in 631 African-American participants. Mean attenuation of L3/L4 was associated with quantitative CT bone density (QCT)...
Purpose To evaluate precision of a software-based liver surface nodularity (LSN) score derived from CT images. Methods An anthropomorphic CT phantom was constructed with simulated liver containing smooth and nodular segments at the surface and simulated visceral and subcutaneous fat components. The phantom was scanned multiple times on a single CT scanner with adjustment of image acquisition and...
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