Kiyosumi Maeda

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The role of cross-sectional imaging in the diagnosis of Crohn disease has expanded with recent technologic advances in computed tomography (CT) and magnetic resonance (MR) imaging that allow rapid acquisition of high-resolution images of the intestines. To acquire images of diagnostic quality, administration of a fairly large amount of intraluminal contrast(More)
OBJECTIVE To assess the reliability of CT airway measurement using phantom and to evaluate its reproducibility using clinical chest CT images. MATERIALS AND METHODS The phantom consisted of six tubes with different diameters and wall thicknesses was used. The wall area ratio (%WA) and wall thickness ratio (%WT) were calculated and the difference from the(More)
OBJECTIVE To evaluate the initial clinical success and long-term patency rates of percutaneous transluminal angioplasty (PTA) using a venous approach for dysfunctional Brescia-Cimino fistula and to identify factors that may affect initial success and long-term patency. MATERIALS AND METHODS A total of 99 PTA procedures were performed in retrograde fassion(More)
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