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排序方式: 共有181条查询结果,搜索用时 0 毫秒
1.
Makoto Osawa Yutaka Ito Toyohiro Hirai Rie Isozumi Shunji Takakura Yasuhiro Fujimoto Yoshitsugu Iinuma Satoshi Ichiyama Koichi Tanaka Michiaki Mishima 《Liver transplantation》2007,13(4):566-570
Invasive aspergillosis (IA) is a severe complication of liver transplantation. Risk factors for IA after deceased donor liver transplantation (DDLT) have been presented in several reports, but are not well established for living donor liver transplant recipients. Here, a retrospective case-control study was performed. Five cases with IA were investigated after living donor liver transplantation (LDLT) between January 1999 and December 2002 at Kyoto University Hospital. For comparison, living donor liver transplant recipients without IA were taken as controls. These patients had undergone LDLT 1 month before or after each IA case and had the same survival times as the latter. We evaluated the clinical and laboratory findings for both groups up until their demise. Patients with IA after LDLT had a very poor prognosis. By univariate analysis, risk factors for IA were preoperative intensive care unit stay (P = 0.02) and preoperative steroid administration (P = 0.02). Preoperative steroid administration for fulminant hepatitis possibly predisposed to the development of IA after LDLT. 相似文献
2.
Toyohiro Kagawa Fumiko Fukunari Tomoko Shiraishi Miwako Yamasaki Takahiro Ichihara Yuka Kihara Ryousuke Zeze Kentaro Nogami Kenji Yuasa 《Oral Radiology》2006,22(2):47-51
Objectives To develop a simple image viewer that utilizes image files in general-purpose formats that are written from the original 3DX
volume data.
Methods We used FLASH MX2004 for Macintosh to develop a simple image viewer. In developing the software for the simple image viewer,
we decided that the viewer should provide the following features: (1) be available to both Windows OS and Mac OS, (2) allow
interlocking of the 3D images, (3) display image enlargement, and (4) allow distance measurements. The accuracy of the distance
measurements was evaluated.
Results The procedure was as follows: (1) write 3D images in jpeg format to a folder on i-VIEW; (2) place the folder containing the
3D images into the directory of the simple image viewer software on a PC; (3) start the software and open the window to input
the folder name containing the 3D images; and (4) display the 3D images. Our viewer had features such as image enlargement,
interlocking 3D images, drawing, and distance measurements. No significant differences were shown between the measurements
made by our simple viewer and the actual values of the images in any direction.
Conclusions Our image-viewing software for 3DX is beneficial for clinical use. 相似文献
3.
A case of giant inflammatory polyposis associated with a localized inflammatory bowel disease of the descending colon in a 49-year-old man is presented. Lower abdominal distension rapidly appeared without any previous history of gastrointestinal disease. Two months later, he underwent a left hemicolectomy. Postoperative recovery was complete and he remains in good health more than 2 years later. The resected colon showed a giant and bizarre polyposis measuring up to 12 cm in length and 2 cm in height and covering the entire circumference of the colon. The polyposis consisted of narrow worm- or noodle-like polyps that bridged over the irregularly shaped ulcers, which sometimes extended into muscularis propria. Although longitudinal ulcers or scars, stricture, and a cobble-stone appearance were not observed, transmural inflammation and deep fissures were found in the interpolypoid area. From these findings, this case seems to be more similar to Crohn's disease than other inflammatory bowel diseases. 相似文献
4.
Membrane attack complex of complement and 20 kDa homologous restriction factor (CD59) in myocardial infarction 总被引:4,自引:0,他引:4
Toyohiro Tada Hidechika Okada Noriko Okada Hisashi Tateyama Harumi Suzuki Youhei Takahashi Tadaaki Eimoto 《Virchows Archiv : an international journal of pathology》1997,430(4):327-332
In order to investigate the mechanism of deposition of the complement membrane attack complex (MAC) in cardiomyocytes in areas of human myocardial infarction, the 20 kDA homologous restriction factor of complement (HRF20; CD59) and complement components (C1q, C3d and MAC) were analysed immunohistochemically using specific antibodies. Myocardial tissues obtained at autopsy from nine patients who died of acute myocardial infarction were fixed in acetone and embedded in paraffin. The ages of the infarcts ranged from about 3.5 h to 12 days. In cases of myocardial infarction of 20 h or less, MAC deposition was shown in the infarcted cardiomyocytes without loss of HRF20. Where the duration was 4 days or more, the cardiomyocytes with MAC deposition in the infarcted areas also showed complete loss of HRF20. Outside the infarcts, HRF20 in the cardiomyocytes was well preserved without MAC deposition. The present study suggests that the initial MAC deposition in dead cardiomyocytes can occur as a result of degradation of plasma-membrane by a mechanism independent of complement-mediated injury to the membrane. Loss of HRF20 from dead cardiomyocytes may not be the initial cause of MAC deposition, but may accelerate the deposition process of MAC in later stages of infarction. 相似文献
5.
Isozumi R Ito Y Ito I Osawa M Hirai T Takakura S Iinuma Y Ichiyama S Tateda K Yamaguchi K Mishima M 《Scandinavian journal of infectious diseases》2005,37(10):709-711
We report 2 cases of Legionella pneumonia in individuals who were exposed to aerosols during maintenance of a cooling tower at a waste processing plant. This report documents the first known occupation-related outbreak of Legionella pneumonia in Japan. 相似文献
6.
Iikubo Masahiro Kagawa Toyohiro Fujisawa Junya Kumasaka Akira Nishioka Takashi Kojima Ikuho Sakamoto Maya Kobayashi Kaoru Yuasa Kenji 《Oral Radiology》2020,36(4):344-348
Oral Radiology - To ascertain the effects of exposure parameters (tube current and tube voltage) and the gutta-percha cone (GPC) size on root fracture-like artifacts obtained with cone-beam... 相似文献
7.
Takashi Kawai Toyohiro Tada Yoshifumi Yokoyama Takashi Joh Makoto Itoh 《Journal of gastroenterology》1998,33(1):97-101
We report a case of low-grade B-cell lymphoma of the duodenal bulb arising from mucosa-associated lymphoid tissue. A barium
swallow and an endoscopic examination showed multiple elevated, irregularly contoured lesions limited to the duodenal bulb.
Endoscopic biopsy specimens were highly suggestive of non-Hodgkin's lymphoma. The resected specimen showed a gyriform mucosal
elevation measuring 3 × 2 cm in extent, with multiple small poly-poid elevations scattered around it. Histologically, the
small lymphocytes constituting the tumor infiltrated the duodenal mucosa and submucosa. The neoplastic centrocyte-like cells
tended to grow around reactive lymphoid follicles and to invade epithelial structures, forming characteristic lymphoepithelial
lesions. Monoclonal proliferation of the lymphoid tissue was demonstrated by the polymerase chain reaction method. The histologic
appearance and the demonstration of monoclonality fulfilled the criteria for malignant lymphoma arising from mucosa-associated
lymphoid tissue, which is extremely rare in the duodenum.
Received Oct. 14, 1996; accepted May 23, 1997 相似文献
8.
Toshihiko Nouchi Yujiro Tanaka Toyohiro Tsukada Chifumi Sato Fumiaki Marumo 《Liver international》1991,11(2):100-105
ABSTRACT— The appearance of α-smooth-muscle-actin (α-smA)-positive cells during hepatic fibrosis was studied immunohistochemically in rat and human livers. In the normal rat liver, α-smA was observed only in vascular smooth muscle cells. With the progression of fibrosis induced by CCl4 injection, α-smA-positive cells appeared in the perisinusoidal space and the fibrous septa, and ultimately surrounded regenerative nodules. An increase of desmin-positive cells was recognized in the fibrotic areas and the perisinusoidal area. In the human liver, α-smA-positive cells appeared in the fibrotic area, whereas no desmin-positive cells were observed, except in vascular walls of the central vein and the portal tract. α-smA is a good marker for the detection of myofibroblast-like cells, and the appearance of α-smA in liver mesenchymal cells seems closely related to the process of hepatic fibrosis in both rat and man. 相似文献
9.
10.
Branch duct-type intraductal papillary mucinous tumor: diagnostic value of multiplanar reformatted images in multislice CT 总被引:9,自引:0,他引:9
Takada A Itoh S Suzuki K Iwano S Satake H Ota T Ikeda M Ishigaki T 《European radiology》2005,15(9):1888-1897
The object of this study was to evaluate the usefulness of high-resolution multiplanar reformatted (MPR) images obtained by multislice CT in demonstrating connection between pancreatic cystic lesions and the main pancreatic duct. The study included 27 lesions with connection to the main pancreatic duct and 12 lesions without. All but one of the former lesions were branch duct-type intraductal papillary mucinous tumors (IPMTs). Oblique and curved MPR images with 0.5 mm continuous slices were generated from pancreatic-phase axial images reconstructed with 0.5 mm or 1 mm thickness at 0.5 mm intervals over a 260 mm field of view. The diagnostic capabilities for demonstrating connection with the main pancreatic duct were compared among axial images, MPR images, and both axial and MPR images in combination using the Brier score. The diagnosis in MPR images for demonstrating connection was more certain than that in axial images (P<0.05). Compared with MPR images alone, the use of both axial and MPR images resulted in further improvements in diagnostic performance, although the difference was not statistically significant. The use of high-resolution MPR images significantly improves diagnostic performance for demonstrating connection between pancreatic cystic lesions and the main pancreatic duct, which is useful for the diagnosis of branch duct-type IPMT. 相似文献