Qiaowei Zhang

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OBJECTIVES Energetic extrapolation is a promising strategy to reduce metal artifacts in dual-source computed tomography (DSCT). We performed this study to systematically optimize image acquisition parameters for this approach in a hip phantom and assess its value in a clinical study. MATERIALS AND METHODS Titanium and steel hip prostheses were placed in a(More)
OBJECTIVE The aim of this study was to investigate the image quality of cerebral dual-energy computed tomography (CT) angiography using a nonlinear image blending technique as compared with the conventional linear blending method in patients with spontaneous subarachnoid hemorrhage (SAH). METHODS A retrospective review of 30 consecutive spontaneous SAH(More)
OBJECTIVE To evaluate spiral CT urography (SCTU) and CT virtual endoscopy (CTVE) in detecting urologic diseases. METHODS SCTU was performed in 46 patients with urological diseases including renal neoplasms (2), paropelvic cysts (2), ureteral calculi (6), ureteral stenosis (4), ureteral neoplasms (2), double kidneys and ureter malformation (1), bladder(More)
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