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1540篇 您的检索式:作者名="kuroki"
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1Pancreatic carcinoma coexisting with chronic pancreatitis versus tumor-forming pancreatitis:Diagnostic utility of the time-signal intensity curve from dynamic contrast-enhanced MR imaging显示文摘AIM: To evaluate the ability of the time-signal intensity curve (TIC) of the pancreas obtained from dynamic contrast-enhanced magnetic resonance imaging (MRI) for differentiation of focal pancreatic masses, especially pancreatic carcinoma coexisting with chronic pancreatitis and tumor-forming pancreatitis. METHODS: Forty-eight consecutive patients who underwent surgery for a focal pancreatic mass, including pancreatic ductal carcinoma (n = 33), tumor-forming pancreatitis (n = 8), and islet cell tumor (n = 7), were reviewed. Five pancreatic carcinomas coexisted with longstanding chronic pancreatitis. The pancreatic TICs were obtained from the pancreatic mass and the pancreatic parenchyma both proximal and distal to the mass lesion in each patient, prior to surgery, and were classified into 4 types according to the time to a peak: 25 s and 1, 2, and 3 min after the bolus injection of contrast material, namely, type-Ⅰ, Ⅱ, Ⅲ, and Ⅳ, respectively, and were then compared to the corresponding histological pancreatic conditions. RESULTS: Pancreatic carcinomas demonstrated type-Ⅲ (n = 13) or Ⅳ (n = 20) TIC. Tumor-forming pancreatitis showed type-Ⅱ (n = 5) or Ⅲ (n = 3) TIC. All islet cell tumors revealed type-Ⅰ. The type-Ⅳ TIC was only recognized in pancreatic carcinoma, and the TIC of carcinoma always depicted the slowest rise to a peak among the 3 pancreatic TICs measured in each patient, even in patients with chronic pancreatitis.CONCLUSION: Pancreatic TIC from dynamic MRI provides reliable information for distinguishing pancreatic carcinoma from other pancreatic masses, and may enable us to avoid unnecessary pancreatic surgery and delays in making a correct diagnosis of pancreatic carcinoma, especially, in patients with longstanding chronic pancreatitis.Yoshitsugu Tajima Tamotsu Kuroki Ryuji Tsutsumi Ichiro Isomoto Masataka Uetani Takashi Kanematsu 2007World Journal of Gastroenterology2007,13,6:28
2Extrahepatic collaterals and liver damage in embolotherapy for ruptured hepatic artery pseudoaneurysm following hepatobiliary pancreatic surgery显示文摘AIM: To evaluate the effects of extrahepatic collaterals to the liver on liver damage and patient outcome after embolotherapy for the ruptured hepatic artery pseudoa- neurysm following hepatobiliary pancreatic surgery. METHODS: We reviewed 9 patients who underwent transcatheter arterial embolization (TAE) for the ruptured hepatic artery pseudoaneurysm following major hepato- biliary pancreatic surgery between June 1992 and April 2006. We paid special attention to the extrahepatic arte- rial collaterals to the liver which may affect post-TAE liver damage and patient outcome. RESULTS: The underlying diseases were all malignan- cies, and the surgical procedures included hepatopancre- atoduodenectomy in 2 patients, hepatic resection with removal of the bile duct in 5, and pancreaticoduodenec- tomy in 2. A total of 11 pseudoaneurysm developed: 4 in the common hepatic artery, 4 in the proper hepatic artery, and 3 in the right hepatic artery. Successful he- mostasis was accomplished with the initial TAE in all patients, except for 1. Extrahepatic arterial pathways to the liver, including the right inferior phrenic artery, the jejunal branches, and the aberrant left hepatic artery, were identified in 8 of the 9 patients after the completion of TAE. The development of collaterals depended on the extent of liver mobilization during the hepatic resection, the postoperative period, the presence or absence of an aberrant left hepatic artery, and the concomitant arte- rial stenosis adjacent to the pseudoaneurysm. The liver tolerated TAE without significant consequences when at least one of the collaterals from the inferior phrenic ar-tery or the aberrant left hepatic artery was present. One patient, however, with no extrahepatic collaterals died of liver failure due to total liver necrosis 9 d after TAE. CONCLUSION: When TAE is performed on ruptured hepatic artery pseudoaneurysm, reduced collateral path- ways to the liver created by the primary surgical proce- dure and a short postoperative interval may lead to an unfavorable outcome.Yoshitsugu Tajima Tamotsu Kuroki Ryuji Tsutsumi Ichiro Sakamoto Masataka Uetani Takashi Kanematsu 2007World Journal of Gastroenterology2007,13,3:7
3Gastrointestinal polyposis with esophageal polyposis is useful for early diagnosis of Cowden's disease显示文摘Cowden's disease, one of the several hamartoma syndromes, is characterized by hyperplastic lesions and hamartomas distributed in the whole body. About thirty percent of patients with Cowden's disease have been reported to be complicated by malignant tumors. Based on the criteria of the International Cowden Consortium, this disease is mainly diagnosed as trichilemmoma of the face and oral mucosal papillomatosis. However, Cowden's disease patients themselves often do not recognize trichilemmoma of the face and oral mucosal papillomatosis. We report a case of Cowden's disease in a 33-year-old female patient who was diagnosed based on the characteristic findings at gastrointestinal endoscopy. Clinically, the patient was aware of having bloody stools. Multiple polyps found endoscopically in the esophagus, stomach, ileum, colon and rectum showed histopathologically hamartomatous changes and epithelial hyperplasia. Physical examination revealed oral papillomatosis and facial trichilemmomas. A germline mutation in exon 8 of the phosphatase and tensin homolog deleted on chromosome ten (PTEN) gene was found in this case. It was a point mutation of C to T at codon 1003 (CGA→TGA, arginine→stop codon). The characteristic findings on gastrointestinal endoscopy led us to a diagnosis of Cowden's disease. It has been reported that gastrointestinal polyposis with esophageal polyposis is found in about 85.7% of Japanese patients with Cowden's disease. The characteristic findings on gastrointestinal endoscopy can be a useful diagnostic clue to Cowden's disease.Ken Umemura Sho Takagi Yasushi Ishigaki Masahiro Iwabuchi Shigeru Kuroki Yoshitaka Kinouchi Tooru Shimosegawa 2008World Journal of Gastroenterology2008,14,37:6
4Expression of alpha smooth muscle actin in living donor liver transplant recipients显示文摘Recently,there have been reports from liver biopsies that showed the progression of liver fibrosis in liver transplant patients after the cessation of immunosuppression.Herein,we focused on activated hepatic stellate cells expressing alpha smooth muscle actin(α-SMA)to understand the correlation between immunosuppressant medication and liver fibrosis.The study enrolled two pediatric patients who underwent living donor liver transplantation and ceased immunosuppressant therapy.The number ofα-SMA-positive cells in the specimens obtained by liver biopsy from these two patients showed a three-fold increase compared with the number from four transplanted pediatric patients who were continuing immunosuppressant therapy.In addition,theα-SMA-positive area evaluated using the WinRooF image processing software program continued toincrease over time in three adult transplanted patients with liver fibrosis,and theα-SMA-positive area was increasing even during the pre-fibrotic stage in these adult cases,according to a retrospective review.Therefore,α-SMA could be a useful marker for the detection of early stage fibrosis.Masataka Hirabaru Kyoko Mochizuki Mitsuhisa Takatsuki Akihiko Soyama Taiichiro Kosaka Tamotsu Kuroki Isao Shimokawa Susmu Eguchi 2014World Journal of Gastroenterology2014,20,22:3
5Development of a novel endoscopic manipulation system: The Endoscopic operation robot显示文摘AIM: To develop and evaluate the endoscopic operation robot (EOR). The EOR is a robot system designed specifically for remote manipulation of the scope during gastrointestinal endoscopy by a seated endoscopist. METHODS: Total colonoscopy examinations using a colonoscopy training model were performed compared conventional insertion by manual manipulation and remote-controlled insertion, using the EOR. The author investigated the time taken for each of the 50 examinations. RESULTS: The median insertion time (in minutes) for each 10 examinations (EOR vs manual manipulation) was 73.70 ± 25.37 vs 3.77 ± 1.34 in the first group, 38.40 ± 6.24 vs 3.40 ± 0.97 in the second group, 27.6 ± 4.01 vs 2.70 ± 0.95 in the third group, 23.8 ± 3.65 vs 3.10 ± 0.88 in the fourth group, and 22.9 ± 5.02 vs 2.60 ± 1.08 in the fifth group.CONCLUSION: The study suggested the possibility of the clinical application of the EOR.Keiichiro Kume Takeshi Kuroki Takahiro Sugihara Masafumi Shinngai 2011World Journal of Gastrointestinal Endoscopy2011,3,7:3
6Global Wheat Head Detection 2021:An Improved Dataset for Benchmarking Wheat Head Detection Methods显示文摘The Global Wheat Head Detection(GWHD)dataset was created in 2020 and has assembled 193,634 labelled wheat heads from 4700 RGB images acquired from various acquisition platforms and 7 countries/institutions.With an associated competition hosted in Kaggle,GWHD_2020 has successfully attracted attention from both the computer vision and agricultural science communities.From this first experience,a few avenues for improvements have been identified regarding data size,head diversity,and label reliability.To address these issues,the 2020 dataset has been reexamined,relabeled,and complemented by adding 1722 images from 5 additional countries,allowing for 81,553 additional wheat heads.We now release in 2021 a new version of the Global Wheat Head Detection dataset,which is bigger,more diverse,and less noisy than the GWHD_2020 version.Etienne David Mario Serouart Daniel Smith Simon Madec Kaaviya Velumani Shouyang Liu Xu Wang Francisco Pinto Shahameh Shafiee Izzat SATahir Hisashi Tsujimoto Shuhei Nasuda Bangyou Zheng Norbert Kirchgessner Helge Aasen Andreas Hund Pouria Sadhegi-Tehran Koichi Nagasawa Goro Ishikawa Sébastien Dandrifosse Alexis Carlier Benjamin Dumont Benoit Mercatoris Byron Evers Ken Kuroki Haozhou Wang Masanori Ishii Minhajul ABadhon Curtis Pozniak David Shaner LeBauer Morten Lillemo Jesse Poland Scott Chapman Benoit de Solan Frédéric Baret Ian Stavness Wei Guo 2021Plant Phenomics2021,3,1:2
7Rough ideals in semigroups显示文摘Kuroki N 1997Information Sciences1997,100,3:2
8Treatment of chronic hepatitis C with high-dose interferon α-2b显示文摘Shiro Iino MD Kunihiko Hino MD Tetsuo Kuroki MD Hiroshi Suzuki MD Sukeo Yamamoto MD 1993Digestive Diseases and Sciences1993,,4:2
9Functional assessment versus conventional volumetric assessment in the prediction of operative outcomes after major hepatectomy显示文摘Hiromitsu Hayashi Toru Beppu Hirohisa Okabe Hideyuki Kuroki Shigeki Nakagawa Katsunori Imai Hidetoshi Nitta Akira Chikamoto Takatoshi Ishiko Hideo Baba 2014Surgery2014,,:2
10The tumor suppressor gene WWOX at FRA16D is involved in pancreatic carcinogenesis 显示文摘Kuroki T Yendamuri S Tmpasso F 2004Clin Cancer Res2004,10,:1
11WW domain containing oxidoreductase gene expression is altered in non-small cell lung cancer显示文摘Yendamuri S Kuroki T 2003Cancer Res2003,63,4:1
12Requirment for vascular endothelial growth factor in wound and inflammation-related corneal neovascularization显示文摘Amano S Rohan R Kuroki M 1998Invest Ophthalmol Vis Sci1998,39,5:1
13The tumor suppressor gene WWOX at FRA16D is involved in pancratic carcimogenesis显示文摘Kuroki T Yendamuri S Trapasso F 2004Clinnical Cancer Research2004,10,7:1
14On Fuzzy Semigroups显示文摘Kuroki N 1991Inform Sci1991,53,:1
15Effects of tirilazad mesylate on vasospasm and phospholipid hydroperoxides in a primate model of subarachnoid hemorrhage 显示文摘Suzuki H Kanamaru K Kuroki M 1999Stroke1999,30,2:1
16Pulmonary surfactant apoprotein a structure and modulation of surfac- tant secretion by rat alveolar type : cells 显示文摘kuroki Y Mason R J Voelker D R 1988J Bio Chem1988,263,7:1
17Advances in breast MRI:diffusion-weighted imaging of the breast显示文摘KUROKI Y NASU K 0,,03:1
18Anticaries effect of polyphenolic compounds from Japanese green tea显示文摘OTAKE S MAKIMURA M KUROKI T 0,,06:1
19Promotion of turbulent thermal mixing of hot and cold airflows in T-junction显示文摘HIROTA M KUROKI M NAKAYAMA H 2008Flow Turbu- lence and Combustion2008,81,12:1
20Laparoscopic spleen-preserving distal pancreatectomy with and without splenic vessel preservation: the role of the Warshaw procedure 显示文摘Matsushima H Kuroki T Adachi T 2014Pancreatology2014,14,6:1
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