Yasushi Kaji

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OBJECTIVE This study was undertaken to clarify the relationship between the signal intensity of T2-weighted magnetic resonance images and the therapeutic effect of magnetic resonance-guided focused ultrasound surgery (MRgFUS) on uterine fibroids. STUDY DESIGN Ninety-five fibroids in 63 patients were classified into 3 types based on the signal intensity of(More)
PURPOSE To evaluate the diagnostic ability of diffusion-weighted imaging (DWI) and dynamic contrast-enhanced imaging (DCEI) in combination with T2-weighted imaging (T2WI) for the detection of prostate cancer using 3 T magnetic resonance imaging (MRI) with a phased-array body coil. MATERIALS AND METHODS Fifty-three patients with elevated serum levels of(More)
Magnetic resonance (MR) imaging provides useful information for characterization of various ovarian masses as neoplastic or nonneoplastic and, when neoplastic, on a spectrum from benign to malignant. The use of MR imaging for diagnosis of ovarian masses includes consideration of morphologic characteristics and signal intensity characteristics on T1- and(More)
PURPOSE To determine whether the apparent diffusion coefficient (ADC) obtained using a high b-value (2,000 s/mm2) is superior to that using a standard b-value (1,000 s/mm2) for discriminating malignant from normal peripheral tissue in the prostate. METHODS Twenty-six patients with biopsy-proven prostate cancer underwent 1.5T magnetic resonance (MR)(More)
In the winter of 1989 and the spring of 1990, there were large outbreaks of respiratory disease in two swine herds in Nagasaki Prefecture, southern Japan. Serological surveillance indicated that the majority of swine possessed antibodies to swine influenza virus H1 haemagglutinin and neuraminidase of early H3N2 influenza virus strains. Eight viruses were(More)
OBJECTIVE The objective of our study was to evaluate the accuracy of integrated PET and CT (PET/CT) using (18)F-FDG in detecting pelvic and paraaortic lymph node metastasis in patients with endometrial cancer, using surgical and histopathologic findings as the reference standard. SUBJECTS AND METHODS Forty patients with clinical stages IA to IIIC(More)
The aim of this study was to investigate the long-term effect of incadronate on fracture healing of the femoral shaft in rats. Female Sprague-Dawley 8-week-old rats were injected subcutaneously (sc) with either vehicle (V group) or two doses of incadronate (10 microg/kg and 100 microg/kg) three times a week for 2 weeks. Right femoral diaphysis was then(More)
The aim of the present study was to investigate effects of incadronate on early stages of fracture healing and to detect its concentration in callus area (Ca.Ar). Rats were injected three times per week with either two doses of incadronate (10 microg/kg and 100 microg/kg) or vehicle for 2 weeks. Femora were then fractured and fixed and animals were divided(More)
OBJECTIVES Our objectives were to evaluate the diagnostic capabilities of conventional MRI for the accurate detection of prostate cancer within the transition zone and to compare the results with histopathologic examination results. MATERIALS AND METHODS One hundred sixteen prostate specimens with prostate cancer were consecutively obtained. Axial,(More)
PURPOSE To evaluate the changes in regular and irregular corneal astigmatism after 25-gauge transconjunctival sutureless vitrectomy and 20-gauge standard vitrectomy. DESIGN Prospective observational comparative case series. PARTICIPANTS Thirty-two eyes of 32 patients undergoing 25-gauge transconjunctival sutureless vitrectomy and 25 eyes of 24 patients(More)