Tsuyoshi Sugawara

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Positive cases of serum human chorionic gonadotropin (hCG) have been increased in patients with pure seminoma due to the progress of methods of measuring serum hCG. But the positive ratio and the value of serum hCG in pure seminoma cases are lower than those of non-seminoma cases. The relationship between the pathological type of testicular tumor and the(More)
The purpose of this study was to explore the feasibility of subtraction coronary computed tomography angiography (CCTA) by second-generation 320-detector row CT in patients with severe coronary artery calcification using invasive coronary angiography (ICA) as the gold standard. This study was approved by the institutional board, and all subjects provided(More)
The purpose of this investigation was to accomplish reproducible radiography of single-leg standing lateral radiography of the knee by adjusting lateral rotation using a ruler to measure foot position. After preliminary assessment of three-dimensional CT of the knees of normal volunteers, the best adjustment of external rotation was estimated. A ruler was(More)
OBJECTIVE To explore the feasibility and diagnostic accuracy of modified subtraction coronary CT angiography (CCTA) with short breath-holding time in patients who have limited breath-hold capability and severe coronary artery calcification. METHODS 11 patients with a coronary calcium score >400 underwent CCTA using a modified subtraction protocol. All(More)
The relationship between the structure and superconductivity of Bi4O4S3 powders synthesized by heating under ambient and high pressures was investigated using synchrotron X-ray diffraction, Raman spectroscopy, and transmission electron microscopy (TEM) observation. The Bi4O4S3 powders synthesized under ambient pressure exhibited a strong superconductivity(More)
RATIONALE AND OBJECTIVES Severe calcifications of the coronary arteries are still a major challenge in coronary computed tomography (CT) angiography (CCTA). Subtraction CCTA using a 320-detector row CT scanner has recently been introduced for patients with severe calcifications. However, the conventional subtraction CCTA method requires a long(More)
OBJECTIVE Cisplatin-based combination chemotherapy has been considered as standard therapy for advanced or metastatic urothelial carcinoma. A recent study has, however, revealed that gemcitabine may have the potential to act synergistically with cisplatin. Therefore, the side effects of gemcitabine plus cisplatin (GC) therapy were compared with those of(More)
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