Makoto Sakane

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OBJECTIVES The objectives of this study were to correlate fluorodeoxyglucose uptake in ovarian masses on positron emission tomography/computed tomography (PET/CT) with pathological grades of malignancy and subtypes and to determine the appropriate approach for combining PET/CT and contrast-enhanced magnetic resonance imaging (CE-MRI) to characterize ovarian(More)
PURPOSE To evaluate the image quality of upper abdominal CT images reconstructed with model-based iterative reconstruction (MBIR) in comparison with filtered back projection (FBP) and adaptive statistical iterative reconstruction (ASIR) on scans acquired with various radiation exposure dose protocols. MATERIALS AND METHODS This prospective study was(More)
OBJECTIVE To evaluate the image quality and radiation dose reduction in pelvic computed tomography (CT) achieved with an adaptive iterative dose reduction 3-dimensional (AIDR 3D) algorithm using a phantom model. METHODS Two phantoms were scanned using a 320-detector row CT scanner with 8 tube current levels, and the images were reconstructed with a(More)
OBJECTIVE The purpose of this study was to investigate retrospectively the clinical procedural performance of CT-guided needle biopsy for retroperitoneal lesions. MATERIALS AND METHODS CT-guided needle biopsy was performed in 74 consecutive patients (M:F = 44:30; mean age, 59.7 years) with retroperitoneal lesions between April 1998 and June 2009. The(More)
BACKGROUND Diffusion-weighted magnetic resonance imaging (DW-MRI) and 2-deoxy-2-[18F]fluoro-D-glucose-positron emission tomography/computed tomography (PET/CT) is increasingly recognized as important for assessing tumor malignancy in oncology. Apparent diffusion coefficient (ADC) and standardized uptake value (SUV) are negatively correlated in some types of(More)
OBJECTIVE The purpose of this study was to compare the effects of high-concentration contrast material and low-voltage CT simulated by virtual monochromatic (VM) imaging on contrast enhancement at multiphasic CT of the upper abdomen. METHODS This study included 72 patients who underwent CT during early arterial (EAP), late arterial and portal venous(More)
Hepatic artery and portal vein infusion of adriamycin (ADM) to normal rabbit and the experimental liver metastasis model of VX2 tumor were discussed in this study. The concentration of ADM in the peripheral blood, liver, myocardium, lung of normal rabbit and metastatic tumor were measured in the HPLC method. There was no difference between arterial infusion(More)
A 37-year-old male presented with hepatic metastases from uveal melanoma after the enucleation of an affected eye. Hepatic metastases were thought to be the critical factors determining prognosis, so transcatheter arterial chemoembolization (TACE) was performed for local control of the hepatic metastases. The first TACE with cisplatin (CDDP) and gelatin(More)
To compare the image quality and diagnostic performance of reduced field-of-view (rFOV) versus conventional full field-of-view (fFOV) diffusion-weighted (DW) imaging of endometrial cancer. Fifty women with endometrial cancer underwent preoperative rFOV and fFOV DW imaging. Two radiologists compared the image qualities of both techniques, and five(More)