The aim of this study was to evaluate the concordance between clinical diagnosis and pathologic findings of veno-occlusive disease/sinusoidal obstruction syndrome (VOD/SOS) in post-hematopoietic stem cell transplantation recipients and to investigate the accuracy of the HOKUS-10 score in diagnosing VOD/SOS. We included 13 patients who underwent transjugular liver biopsy for clinical suspicion of VOD/SOS and collected their clinical, laboratory, imaging, and pathologic data. Eleven patients were confirmed to have VOD/SOS by pathologic examination.
View Article and Find Full Text PDFBackground: Hyperammonemia and hepatic encephalopathy are common in patients with portosystemic shunts. Surgical shunt occlusion has been standard treatment, although recently the less invasive balloon-occluded retrograde transvenous obliteration (B-RTO) has gained increasing attention. Thus far, there have been no reports on the treatment of portosystemic shunts with B-RTO in patients aged over 90 years.
View Article and Find Full Text PDFTreatment of pelvic arteriovenous malformations (AVMs) is frequently challenging because of the complex structures and anatomical diversity among cases. We present a case series of six patients with pelvic AVMs. All patients had a similar anatomical structure consisting of multiple feeders from the unilateral internal iliac artery, collecting into a dilated venous sac in the unilateral paravesical space and draining into a single outflow, eventually joining the pre-prostatic vein or internal iliac vein.
View Article and Find Full Text PDFIntroduction: The usefulness of carbon dioxide (CO) gas digital subtraction angiography (DSA) has been reported for patients with renal insufficiency and allergy to iodinated contrast agents. However, CO gas cannot replace the iodinated contrast agent in all cases owing to some disadvantages. We describe balloon-occluded CO DSA (B-CO DSA) as an improved CO DSA procedure for interventions in the internal iliac artery (IIA) region and compare the quality of images obtained using conventional CO DSA and B-CO DSA.
View Article and Find Full Text PDFWe evaluated the influence of catheter sampling position and size on left adrenal venous sampling (AVS) in patients with primary aldosteronism (PA) and analyzed their relationship to cortisol secretion. This retrospective study included 111 patients with a diagnosis of primary aldosteronism who underwent tetracosactide-stimulated AVS. Left AVS was obtained from two catheter positions - the central adrenal vein (CAV) and the common trunk.
View Article and Find Full Text PDFPurpose: To retrospectively evaluate the utility of apparent diffusion coefficient (ADC) and lesion to spinal cord ratio (LSR) in diffusion-weighted magnetic resonance (MR) imaging (DWI) as compared with morphological assessment alone, for differentiating malignant from benign gallbladder disorders.
Methods: This study was approved by the ethics committee, and written informed consent was waived. Ninety-one patients (13 malignancy and 78 benignancy) were reviewed.
Purpose: We prospectively assessed whether enhancement characteristics on dynamic magnetic resonance (MR) imaging could distinguish indeterminate pulmonary nodules.
Methods: We evaluated 51 pulmonary nodules in 51 consecutive patients (11 female, 40 male; mean age, 64 years) using dynamic MR images acquired at 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 120, 150, 180, 210, 240, 360, 480, 600, 720, and 840 s following injection of contrast material. We prospectively evaluated morphologic enhancement patterns, peak rate, time to peak enhancement, steepest slope, and washout of nodules and analyzed statistics to determine any differences between MR parameters, patient age, tumor size, and final diagnosis.
Background: The prevalence of esophageal cancer accompanied by hypopharyngeal cancer (HPC) is high and increasing rapidly in Asia. The purpose of this prospective study was to evaluate the prevalence of esophageal cancer during the pretreatment of HPC patients who were routinely examined using esophagogastroduodenoscopy (EGD) and 18F-fluorodeoxyglucose/computed tomography (FDG-PET/CT) and to discuss the utility of these examinations.
Material And Methods: Between September 2005 and September 2010, 33 patients with newly diagnosed HPC (all with squamous cell carcinoma) underwent EGD (after a conventional endoscopy, iodine staining was performed) and FDG-PET/CT examinations.
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