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1435篇 您的检索式:作者名="Mitani"
    题名 作者 年代 出处 被引量
1Novel 3-dimensional virtual hepatectomy simulation combined with real-time deformation显示文摘AIM:To develop a novel 3-dimensional(3D) virtual hepatectomy simulation software,Liversim,to visualize the real-time deformation of the liver.METHODS:We developed a novel real-time virtual hepatectomy simulation software program called Liversim. The software provides 4 basic functions:viewing 3D models from arbitrary directions,changing the colors and opacities of the models,deforming the models based on user interaction,and incising the liver parenchyma and intrahepatic vessels based on user operations. From April 2010 through 2013,99 patients underwent virtual hepatectomies that used the conventional software program SYNAPSE VINCENT preoperatively. Between April 2012 and October 2013,11 patients received virtual hepatectomies using the novel software program Liversim; these hepatectomies were performed both preoperatively and at the same that the actual hepatectomy was performed in an operating room. The perioperative outcomes were analyzed between the patients for whom SYNAPSE VINCENT was used and those for whom Liversim wasused. Furthermore,medical students and surgical residents were asked to complete questionnaires regarding the new software.RESULTS:There were no obvious discrepancies(i.e.,the emergence of branches in the portal vein or hepatic vein or the depth and direction of the resection line) between our simulation and the actual surgery during the resection process. The median operating time was 304 min(range,110 to 846) in the VINCENT group and 397 min(range,232 to 497) in the Liversim group(P = 0.30). The median amount of intraoperative bleeding was 510 m L(range,18 to 5120) in the VINCENT group and 470 m L(range,130 to 1600) in the Liversim group(P = 0.44). The median postoperative stay was 12 d(range,6 to 100) in the VINCENT group and 13 d(range,9 to 21) in the Liversim group(P = 0.36). There were no significant differences in the preoperative outcomes between the two groups. Liversim was not found to be clinically inferior to SYNAPSE VINCENT. Both students and surgical residents reported that the Liversim image was almost the same as the actual hepatectomy.CONCLUSION:Virtual hepatectomy with real-time deformation of the liver using Liversim is useful for the safe performance of hepatectomies and for surgical education.Yukio Oshiro Hiroaki Yano Jun Mitani Sangtae Kim Jaejeong Kim Kiyoshi Fukunaga Nobuhiro Ohkohchi 2015World Journal of Gastroenterology2015,21,34:23
2Transferring pose and augmenting background for deep humanimage parsing and its applications显示文摘Parsing of human images is a fundamental task for determining semantic parts such as the face,arms, and legs, as well as a hat or a dress. Recent deep-learning-based methods have achieved significant improvements, but collecting training datasets with pixel-wise annotations is labor-intensive. In this paper,we propose two solutions to cope with limited datasets.Firstly, to handle various poses, we incorporate a pose estimation network into an end-to-end humanimage parsing network, in order to transfer common features across the domains. The pose estimation network can be trained using rich datasets and can feed valuable features to the human-image parsing network. Secondly, to handle complicated backgrounds,we increase the variation in image backgrounds automatically by replacing the original backgrounds of human images with others obtained from large-scale scenery image datasets. Individually, each solution is versatile and beneficial to human-image parsing, while their combination yields further improvement. We demonstrate the effectiveness of our approach through comparisons and various applications such as garment recoloring, garment texture transfer, and visualization for fashion analysis.Takazumi Kikuchi Yuki Endo Yoshihiro Kanamori Taisuke Hashimoto Jun Mitani 2018Computational Visual Media2018,4,1:4
3Feasibility and safety of laparoscopic and endoscopic cooperative surgery for gastric submucosal tumors, including esophagogastric junction tumors显示文摘Shu Hoteya Shusuke Haruta Hisashi Shinohara Akihiro Yamada Tsukasa Furuhata Satoshi Yamashita Daisuke Kikuchi Toshifumi Mitani Osamu Ogawa Akira Matsui Toshiro Iizuka Harushi Udagawa Mitsuru Kaise 2014Digestive Endoscopy2014,,4:4
4Transarterial chemoembolization with miriplatin-lipiodol emulsion for neuroendocrine metastases of the liver显示文摘Miriplatin,a cisplatin derivative with a high affinity for iodized oil,is a novel chemotherapeutic agent designed for use in the transarterial treatment of hepatocellular carcinoma.This case report describes our experience with transarterial chemoembolization(TACE) using miriplatin in 2 patients with neuroendocrine liver metastases.A 38-year-old man with multiple neuroendocrine liver metastases was treated by whole liver chemoembolization,and a 35-year-old woman with a single hepatic lesion was treated by superselective chemoembolization.No serious adverse events were noted during the interventional procedures,or during the observation period of 3 mo in either patient.Sufficient iodized oil uptake was observed in the hypervascular lesions on the unenhanced computed tomography(CT) at 7 d after the procedure.Contrast-enhanced CT obtained at 3 mo after chemoembolization revealed that all hepatic lesions were substantially reduced in size irrespective of tumor vascularity or degree of cystic degeneration,although iodized oil accumulation was only marginal for lesions with cystic degeneration.Thus,TACE with miriplatin can be a safe and effective therapeutic option for the treatment of neuroendocrine metastases of the liver.Jin Iwazawa Shoichi Ohue Keigo Yasumasa Takashi Mitani 2010World Journal of Radiology2010,2,12:2
5Molecular cloning and characterization of DMRT genes from the medaka Oryzias latipes and the platyfish Xiphophorus maculatus显示文摘Mariko Kondo Alexander Froschauer Akiko Kitano Indrajit Nanda Ute Hornung Jean-Nicolas Volff Shuichi Asakawa Hiroshi Mitani Kiyoshi Naruse Minoru Tanaka Michael Schmid Nobuyoshi Shimizu Manfred Schartl Akihiro Shima 2002Gene2002,,2:2
6Usefulness of Magnifying Endoscopy with Narrow-Band Imaging for Determining Tumor Invasion Depth in Early Gastric Cancer显示文摘Daisuke Kikuchi Toshiro Iizuka Shu Hoteya Akihiro Yamada Tsukasa Furuhata Satoshi Yamashita Kaoru Domon Masanori Nakamura Akira Matsui Toshifumi Mitani Osamu Ogawa Sumio Watanabe Mitsuru Kaise Guido Schumacher 2013Gastroenterology Research and Practice2013,,:2
7Spatial and temporal variation in soil respiration in a Southeast Asian tropical rainforest显示文摘Yoshiko Kosugi Tomonori Mitani Masayuki Itoh Shoji Noguchi Makoto Tani Naoko Matsuo Satoru Takanashi Shinjiro Ohkubo Abdul Rahim Nik 2007Agricultural and Forest Meteorology2007,,1:2
8Endoscopic submucosal dissection for nonampullary large superficial adenocarcinoma/adenoma of the duodenum: feasibility and long-term outcomes显示文摘Shu Hoteya Naohisa Yahagi Toshiro Iizuka Daisuke Kikuchi Toshifumi Mitani Akira Matsui Osamu Ogawa Satoshi Yamashita Tsukasa Furuhata Akihiro Yamada Ryusuke Kimura Kosuke Nomura Yasutaka Kuribayashi Mitsuru Kaise 2013EIO2013,,01:2
9Distal movement of mandibular molars in adult patients with the skeletal anchorage system显示文摘Junji Sugawara Takayoshi Daimaruya Mikako Umemori Hiroshi Nagasaka Ichiro Takahashi Hiroshi Kawamura Hideo Mitani 2003American Journal of Orthodontics & Dentofacial Orthopedics2003,,2:2
10对有静脉内的提高对比的 C 手臂的肝肿瘤的脱离边缘评价计算了断层摄影术显示文摘 AIM:To evaluate the feasibility of intravenous contrastenhanced C-arm computed tomography(CT) for assessing ablative areas and margins of liver tumors.METHODS:Twelve patients(5 men,7 women;mean age,69.5 years) who had liver tumors(8 hepatocellular carcinomas,4 metastatic liver tumors;mean size,16.3 mm;size range,8-20 mm) and who underwent percutaneous radiofrequency ablations(RFAs) with a flatdetector C-arm system were retrospectively reviewed.Intravenously enhanced C-arm CT and multidetector computed tomography(MDCT) images were obtained at the end of the RFA sessions and 3-7 d after RFA to evaluate the ablative areas and margins.The ablated areas and margins were measured using axial plane images acquired by both imaging techniques,with prior contrast-enhanced MDCT images as the reference.The sensitivity,specificity,and positive and negative predictive values of C-arm CT for detecting insufficient ablative margins(< 5 mm) were calculated.Statistical differences in the ablative areas and margins evaluated with both imaging techniques were compared using a paired t-test.RESULTS:All RFA procedures were technically successful.Of 48 total ablative margins,19(39.6%) and 20(41.6%) margins were found to be insufficient with C-arm CT and MDCT,respectively.Moreover,there were no significant differences between these 2 imaging techniques in the detection of these insufficient ablative margins.The sensitivity,specificity,and positive and negative predictive values for detecting insufficient margins by C-arm CT were 90.0%,96.4%,94.7% and 93.1%,respectively.The mean estimated ablative areas calculated from C-arm CT(462.5 ± 202.1 mm 2) and from MDCT(441.2 ± 212.5 mm 2) were not significantly different.The mean ablative margins evaluated by C-arm CT(6.4 ± 2.2 mm) and by MDCT(6.0 ± 2.4 mm) were also not significantly different.CONCLUSION:The efficacy of intravenous contrastenhanced C-arm CT in assessing the ablative areas and margins after RFA of liver tumors is nearly equivalent to that of MDCT.Jin Iwazawa Shoichi Ohue Naoko Hashimoto Takashi Mitani 2012World Journal of Radiology2012,4,3:2
11Deformation and fracture behavior of an Al 2 O 3 /YAG composite from room temperature to 2023 K显示文摘S. Ochiai T. Ueda K. Sato M. Hojo Y. Waku N. Nakagawa S. Sakata A. Mitani T. Takahashi 2001Composites Science and Technology2001,,14:2
12PMU Based Monitoring and Estimation of Inter-area Power Oscillation for Singapore-Malaysia Interconnection Power System显示文摘Dikpride Despa Yasunori Mitani Masayuki Watanabe Changsong Li 2012Journal of Energy and Power Engineering2012,6,3:2
13Optical biopsy of sessile serrated adenomas: do these lesions resemble hyperplastic polyps under narrow-band imaging?显示文摘Sheila Kumar Ann Fioritto Aya Mitani Manisha Desai Naresh Gunaratnam Uri Ladabaum 2013Gastrointestinal Endoscopy2013,,:2
14Delayed bleeding after endoscopic submucosal dissection for non‐ampullary superficial duodenal neoplasias might be prevented by prophylactic endoscopic closure: Analysis of risk factors显示文摘Shu Hoteya Mitsuru Kaise Toshiro Iizuka Osamu Ogawa Toshifumi Mitani Akira Matsui Daisuke Kikuchi Tsukasa Furuhata Satoshi Yamashita Akihiro Yamada Ryusuke Kimura Kousuke Nomura Yasutaka Kuribayashi Yoshifumi Miyata Naohisa Yahagi 2015Digestive Endoscopy2015,,3:2
15Preparation of spherical activated carbon with high electric double-layer capacitance 显示文摘Lee S I Mitani S Yoon S H 2004Carbon2004,42,11:1
16Discussion of method of reducing internal residual stress in tension lever显示文摘 Akinori Tsuchiya Naoki Ogashi 1999Journal of the JCBRA1999,38,:1
17Analysis of abietic acid and dehydroabietic acid in food samples by in-tube solid-phase microextraction coupled with liquid chromatography-mass spectrometry显示文摘MITANI K FUJIOKA M UCHIDA A KATAOKA H 2007J Chromatogr:A2007,1146,1:1
18Application of resistor based superconducting fault current limiter to enhancement of power system transient stability 显示文摘Tsuda M Mitani Y Tsuji K 2001IEEE Transactions on Applied Superconductivity2001,11,1:1
19Enhanced magnetoresistance in insulating granular systems : evidence for higher-order tunneling显示文摘MITANI S TAKAHASHI S TAKANASHI K 1998Phys Rev Lett1998,81,13:1
20Analysis and application of gas sampling to scramjet engine testing显示文摘MITANI T TAKAHASHI M 1999Journal of Propulsion and Power1999,15,4:1
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