Publications by authors named "Kenji Nagaoki"
Introduction: Lower handgrip strength is a manifestation of sarcopenia and frailty, and has been reported to be associated with cerebral microbleeds (CMBs), which appear on T2-weighted magnetic resonance scans as low-intensity spots. However, the underlying mechanism is unknown. We hypothesized that vascular endothelial injury could be the common factor in loss of handgrip strength and CMBs.
View Article and Find Full Text PDFRationale And Objectives: Pulmonary interlobar fissures are important landmarks for proper identification of normal pulmonary anatomy and evaluation of disease. The purpose of this study was to define the radiologic anatomy of the pulmonary fissures using high resolution computed tomography (HRCT) in a large population.
Methods: HRCT of the lungs from aortic arch to diaphragm was performed in 622 patients, with a slice thickness of 1 mm and slice interval of 10 mm.
Objective: The purpose of our study was to evaluate the diagnostic performance of an artificial neural network (ANN) in differentiating among certain diffuse lung diseases using high-resolution CT (HRCT) and the effect of ANN output on radiologists' diagnostic performance.
Materials And Methods: We selected 130 clinical cases of diffuse lung disease. We used a single three-layer, feed-forward ANN with a back-propagation algorithm.
Objective: The purpose of our study was to discuss the incidence, predisposing factors, and clinical course of intrahepatic biloma after transcatheter arterial chemoembolization for hepatic tumors including hepatocellular carcinoma and metastatic liver tumor.
Materials And Methods: Nine hundred seventy-two patients with hepatocellular carcinoma (n = 920) or metastatic liver tumor (n = 52) underwent chemoembolization during a 12-year period beginning in January 1989. We retrospectively reviewed the medical records and follow-up radiographs of chemoembolization and analyzed the risk factors associated with the development of intrahepatic biloma.