Keisuke Tanno

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PURPOSE To evaluate the effect of Joint Photographic Experts Group (JPEG) compression ratios of 10:1 and 20:1 on detection of acute cerebral infarction at computed tomography (CT). MATERIALS AND METHODS CT images obtained in 25 patients with acute cerebral infarction and 25 patients with no lesions were compressed by means of a JPEG algorithm at ratios of(More)
PURPOSE To evaluate the incidence of supernumerary renal arteries in horseshoe kidney (HSK) patients, focusing on number and diameters using computed tomographic angiography (CTA). MATERIAL AND METHODS Thirty-nine patients with HSK and 103 patients with normal kidney (NK) underwent 64 or 128 multidetector CT. Based on 2-dimensional CT, including(More)
PURPOSE The purpose of this study was to evaluate the diagnostic performance of non-contrast-enhanced magnetic resonance angiography with time-spatial labeling inversion pulse (time-SLIP MRA) in the assessment of pulmonary arteriovenous malformation (PAVM). METHODS Eleven consecutive patients with 38 documented PAVMs underwent time-SLIP MRA with a 3-tesla(More)
UNLABELLED Objection: To evaluate of Kommerell diverticulum (KD) in adults during routine CT examinations. MATERIAL AND METHODS Eighty-seven cases of left aortic arch with aberrant right subclavian artery (LAARS) and 28 cases of right aortic arch with aberrant left subclavian artery (RAALS) were found on routine CT examinations using 64-128 multidetector(More)
Pulmonary varix is a rare entity that presents as a focal aneurysmal dilatation of the pulmonary vein and is frequently mistaken for a pulmonary arteriovenous malformation (PAVM). It is important to distinguish between pulmonary varix and PAVM because the former does not usually require treatment. We present the findings of non-contrast-enhanced magnetic(More)
A pulmonary arteriovenous malformation (PAVM) is a direct connection between the pulmonary arteries and veins for which metallic coil transcatheter embolization is the standard of care. Detecting recanalization after PAVM treatment is crucial, but direct visualization with computed tomography or magnetic resonance imaging (MRI) is generally difficult. Here,(More)
To evaluate the efficacy and safety of ultrasound (US)-guided axillary brachial plexus block (ABPB) for analgesia during percutaneous transluminal angioplasty (PTA) for dialysis access. Twenty-one patients who underwent PTA for stenotic dialysis access shunts and who had previous experience of PTA without sedation, analgesia, and anesthesia were included.(More)
OBJECTIVE A puerperal vulvovaginal hematoma may continue to grow after a surgical procedure and may require blood transfusion. Thus, we selected arterial embolization for hemostasis as the first-line management in two cases of large vulvovaginal hematoma. MATERIALS AND METHODS Case 1 was a 32-year-old pregnant woman. After delivery, a 10-cm vulvar(More)
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