Yashwant D Patel

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The portosystemic collateral channels that can develop in portal hypertension are numerous, widespread, and varied in appearance. The reported prevalences of varices at each anatomic site vary according to the diagnostic modality used. Dynamic computed tomography (CT) performed with a bolus of contrast material demonstrates collateral vessels with exquisite(More)
The authors describe a number of abnormalities that were incidentally found in a series of 132 scintigraphic studies performed for acute gastrointestinal hemorrhage. These incidental abnormalities involved the vascular system, reticuloendothelial system, and soft tissues. Correlative radiographs and computed tomographic scans are presented for some cases.(More)
We present a case of coarctation of the aorta with a post-stenotic aneurysm in a 79-year-old male patient. Diagnostic studies included computed tomographic angiogram, magnetic resonance angiogram and digital subtraction angiogram. Our patient underwent operative therapy that resulted in improvement of his hypertension and cardiac function.
A new buffer system is reported for the analysis of radiographic contrast agents (RCAs) sodium meglumine diatrizoate, iohexol, and iopamidol in mice plasma and testes, on a reversed-phase HPLC with UV detection. The buffer consisting of 0.1 M NaH2PO4, 0.2 mM Na2EDTA adjusted to pH 3.1 with orthophosphoric acid and 2.5-5.0% acetonitrile (v/v) resolved RCA(More)
RATIONALE AND OBJECTIVES The biological effects of iodinated contrast media were examined by using spermatogenesis in mouse testis as the experimental model. METHODS Spermhead survival and abnormality assays were used as the biological end points. Diatrizoate meglumine/diatrizoate sodium and iopamidol were administered intravenously at equal rates and(More)
Four patients with malignant paragangliomas of the retroperitoneum were examined by computed tomography. Angiography was performed in two patients. Computed tomography guided the surgeon in obtaining a biopsy and in considering the possibility of resection. Angiography demonstrated the vascular supply and vascularity of the tumours. Pathological correlation(More)