Kazutoshi Okamura

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Chromosome configurations at meiotic metaphase I ofCarex blepharicarpa were determined for 245 individuals collected from 11 localities in the Chugoku District of Japan. Nine intraspecific aneuploids, 2n=26–33 and 41, were found. The most common diploid number was 29, and found in 73 individuals. No clear geographical pattern was suggested by a distribution(More)
INTRODUCTION The aim of this study was to clarify the effectiveness of various imaging modalities and characteristic imaging features in the screening of IgG4-related dacryoadenitis and sialadenitis (IgG4-DS), and to show the differences in the imaging features between IgG4-DS and Sjögren's syndrome (SS). METHODS Thirty-nine patients with IgG4-DS, 51 with(More)
OBJECTIVE The aim was to investigate the diagnostic imaging characteristics of Mikulicz disease (MD), especially sonographic ones, and to clarify the differences between them and those in Sjögren syndrome (SS), based on new criteria of MD. STUDY DESIGN The sonographic and sialographic images, as well as clinical, histopathologic, and serologic findings of(More)
OBJECTIVE The objective of this study is to establish readily applied sonographic diagnostic criteria for Sjögren's syndrome. STUDY DESIGN Sonographic images of 79 cases of previously suspected Sjögren's syndrome (including 43 actual cases) were analyzed retrospectively for the following characteristic features: (1) multiple hypoechoic areas, (2) multiple(More)
The first purpose of this study was to quantify the sonographic images of the salivary gland to differentiate the Sjögren syndrome (SS) group from the non-SS group. We included 132 patients in this study who had been referred to our department because of a suspicion of SS. A total of 91 patients fulfilled the criteria for SS, whereas the remaining 41(More)
OBJECTIVE To evaluate the usefulness of the vascularity in parotid glands in sonographic diagnosis for Sjögren syndrome. STUDY DESIGN Sonographic images of 72 cases of previously suspected Sjögren syndrome (including 43 actual cases) were analyzed retrospectively for the abnormal vascularity in the parotid gland parenchyma. The relationships between the(More)
PURPOSE The directional dependence of accuracy with cone beam computed tomography (CBCT) has not been investigated thoroughly. The purpose of the present study was to clarify the effects of measurement direction and of phantom locations in the fields of view (FOVs) on the accuracy of linear measurement and on the limits of measuring thin objects with CBCT.(More)
OBJECTIVES We sought to evaluate the diagnostic efficacy of computed tomography (CT) images in the differentiation between intraosseous malignant tumors and osteomyelitis spreading into the masticator space. STUDY DESIGN A retrospective evaluation was carried out by using CT images from 12 patients with intraosseous malignant tumors and 9 patients with(More)