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Laparoscopic repair of hiatal hernia with mesenterioaxial volvulus of the stomach

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World Journal of Gastroenterology 2011年第15期17卷 2054-2057页

作者： Kazuki Inaba Yoichi Sakurai Jun Isogaki Yoshiyuki Komori ichiro Uyama Department of Surgery Fujita Health University School of Medicine 1-98 Dengakugakubo Kutsukake-cho Toyoake Aichi 470-1192 Japan

Although mesenterioaxial gastric volvulus is an uncommon entity characterized by rotation at the transverse axis of the stomach, laparoscopic repair procedures have still been controversial. We reported a case of mesenterioaxial intrathoracic gastric volvulus, which was successfully treated with laparoscopic repair of the diaphragmatic hiatal defect using a polytetrafluoroethylene mesh associated with Toupet fundoplication. A 70-year-old Japanese woman was admitted to our hospital because of sudden onset of upper abdominal pain. An upper gastrointestinal series revealed an incarcerated intrathoracic mesenterioaxial volvulus of the distal portion of the stomach and the duodenum. The complete laparoscopic approach was used to repair the volvulus. The laparoscopic procedures involved the repair of the hiatal hernia using polytetrafluoroethylene mesh and Toupet fundoplication. This case highlights the feasibility and effectiveness of the laparoscopic procedure, and laparoscopic repair of the hiatal defect using a polytetrafluoroethylene mesh associated with Toupet fundoplication may be useful for preventing postoperative recurrence of hiatal her-nia, volvulus, and gastroesophageal reflux.

关键词：修补程序胃扭转腹腔镜肠扭转聚四氟乙烯十二指肠消化道 HER

A Proposal of Hyperbolic Fitting Method by Applying the Properties of Functions for Plateau Surface Analysis in ISO 13565-3

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Nanomanufacturing and Metrology 2021年第2期4卷 86-96页

作者： Ryo Sakakibara ichiro Yoshida Yuki Kondo Munetoshi Numada Kenichi Yamashita HOSEI University Graduate School 3-7-2 KajinochoKoganei-shiTokyo184-8584Japan Faculty of Science and Engineering HOSEI University3-7-2 KajinochoKoganei-shiTokyo184-8584Japan Faculty of Engineering Chukyo University101-2 YagotohonmachiNagoyaShowa-kuAichi466-8666Japan ISUZU Advanced Engineering Center LTD8 TsuchidanaFujisawa-shiFujisawa-shiKanagawa252-0881Japan

ISO 13565-3 provides an evaluation method for plateau structure surfaces used as sliding surfaces in machine tools and automobile *** evaluation method for plateau structure surfaces of ISO 13565-3 has problems,such as the processing procedure has an ambiguous basis,and the calculation method is not *** existing evaluation method that solves these problems requires the implementation of a difficult *** subsequent evaluation methods,these problems were resolved,and the implementation of complicated calculation algorithms became ***,these methods use algorithms that do not conform to the evaluation method of ISO *** lack of adherence to the ISO standard may hinder their application in the industrial ***,in this study,a new method that conforms to the evaluation method of ISO 13565-3 with a more concise algorithm was *** concluded that this proposed method can contribute to the formation of plateau surfaces and production control in the industrial world.

关键词： Stratified functional properties Plateau surface Surface texture Surface roughness Material probability curve

Treatment strategy for pancreatic head cancer with celiac axis stenosis in pancreaticoduodenectomy:A case report and review of literature

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World Journal of Gastroenterology 2022年第8期28卷 868-877页

作者： Eiji Yoshida Yasutoshi Kimura Takuro Kyuno Ryoko Kawagishi Kei Sato Tsuyoshi Kono Takehiro Chiba Toshimoto Kimura Hitoshi Yonezawa Osamu Funato Makoto Kobayashi Kenji Murakami Akinori Takagane ichiro Takemasa Department of Surgery Hakodate Goryoukaku HospitalHakodate City 040-8611Japan Department of Surgery Surgical Oncology and ScienceSapporo Medical UniversitySapporo City 060-8543HokkaidoJapan Department of Diagnostic Radiology Hakodate Goryoukaku HospitalHakodate City 040-8611Japan

BACKGROUND During pancreaticoduodenectomy in patients with celiac axis(CA)stenosis due to compression by the median arcuate ligament(MAL),the MAL has to be divided to maintain hepatic blood flow in many ***,MAL division often fails,and success can only be determined *** overcome this problem,we performed endovascular CA stenting preoperatively,and thereafter safely performed *** present this case as a new preoperative treatment strategy that was *** SUMMARY A 77-year-old man with a diagnosis of pancreatic head cancer presented to our department for *** assessment revealed CA stenosis caused by *** performed endovascular stenting in the CA preoperatively because we knew that going into the operation without a strategy could lead to ischemic ***-antiplatelet therapy(DAPT)–which is needed when a stent is inserted–was then administered in parallel with neoadjuvant chemotherapy(NAC).This allowed us to administer DAPT for a sufficient period before the main pancreaticoduodenectomy procedure while obtaining therapeutic effects from *** stomach-preserving pancreaticoduodenectomy was *** operation did not require any unusual techniques and was performed ***,the patient progressed well,without any ischemic ***,curative resection was confirmed,and the patient had no recurrence or complications due to ischemia up to six months *** Preoperative endovascular stenting,with NAC and DAPT,is effective and safe prior to pancreaticoduodenectomy in potentially resectable pancreatic cancer.

关键词： Pancreaticoduodenectomy Celiac axis stenosis Median arcuate ligament Endovascular stenting Pancreatic head cancer Case report

Clothing skirt designed on conical truss model

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Advances in Manufacturing 2013年第2期1卷 130-135页

作者： Eri Nakayama Sachiko Ishida Yu-Jing Liao ichiro Hagiwara Organization for the Strategic Coordination of Research and Intellectual Property Meiji University8114-21-1NakanoNakano-kuTokyo 164-8525Japan

Several applications of Origami have been tested in industrial area. However, Origami based design is found only in lamp shade and wrapping in design area, and has not been practically applied especially in clothing. In this paper, the conical truss model is applied in the clothing skirt, and the simulation software from 2D to 3D is developed by parametric Origami module （POM）. Finally, the pattern is copied on felt clothing, and the scaled model of skirt on the basis of conical reverse truss model design is made.

关键词： Origami Conical truss model ParametricOrigami module (POM)

Verification of Characteristics of Gaussian Filter Series for Surface Roughness in ISO and Proposal of Filter Selection Guidelines

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Nanomanufacturing and Metrology 2021年第2期4卷 97-108页

作者： Yuki Kondo ichiro Yoshida Dan Nakaya Munetoshi Numada Hiroyasu Koshimizu HOSEI University 3-7-2 Kajino-choKoganei-shiTokyo184-8584Japan Chukyo University 101-2 Yagotohonmati Showa-kuNagoyaAichi466-8666Japan YYC Solution 3-102-3F Kamiyashiro Meito-kuNagoyaAichi465-0025Japan

In surface roughness measurement,if spikes are included in the primary profile,a problem occurs wherein the Gaussian filter(GF)is unable to extract the shape *** address this problem,the use of a robust filter is ***,ISO16610-31:Gaussian regression filters(GRF)only provide a single method and a few examples,and does not specify the conditions under which the primary profile can be ***,the data presented in the example on robustness in ISO16610-31 do not contain roughness *** actual roughness measurements,no primary profile exists that does not include a roughness *** the characteristics of GRFs are unknown,it is not yet clear which filter should be used for which primary profile,and this is an issue that has been raised at ISO and JIS *** addition,the establishment of filter selection guidelines is necessary at measurement ***,this paper clarifies the characteristics of GF-series filters,summarizes the points to be considered when using them,and identifies the filter that should be selected according to different *** on the results,a figure that visualizes the characteristics of filters and a flowchart regarding which filter should be used are created;these tools,to the best of the authors’knowledge,did not exist prior to this *** is believed that these results will help fulfil the needs of measuring job sites and also aid in filter selection.

关键词： Surface roughness Gaussian filter Robust filter M-estimation method Fast M-estimation method

A Proposal of a Spline Filter that Achieves Both Robustness and Lower Compatibility

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Nanomanufacturing and Metrology 2021年第2期4卷 77-85页

作者： Yuki Kondo Munetoshi Numada Keiya Takahashi ichiro Yoshida Hiroyasu Koshimizu HOSEI University 3-7-2 Kajino-choKoganei-shiTokyo184-8584Japan Chukyo University 101-2 Yagotohonmati Showa-kuNagoyaAichi466-8666Japan YYC Solution 3-102-3F Kamiyashiro Meito-kuNagoyaAichi465-0025Japan

A spline filter is used to extract roughness profiles for the measurement of surface texture and is useful when sufficient sections before and after a primary profile could not be *** is because a spline filter could prevent the end effect,which is the fluctuation of output data that occurs around both ends of the primary profile and depends on the width of the weighting function of a *** spline filter is based on the calculation of an inverse matrix instead of the convolution of the weighting function of the *** input data include outliers,the output of a spline filter greatly *** solve this problem,we propose a robust spline ***,output of the robust spline is not in agreement with that of the spline filter when input data do not include ***,the robust spline filter has no lower *** this paper,the"Fast M-estimation Spline Filter(FMSF)"is *** uses the fast M-estimation *** performs robust to input data including outliers,and gives the same output as that of general spline filters to input data without *** value estimated by this method is in agreement with that estimated by the least squares method if no outlier *** order to apply the fast M-estimation method to the spline filter,convolution of weight function is used instead of the inverse *** the input geometry with shear and point-symmetric extensions is pre-processed to prevent the end effect.

关键词： Surface roughness Spline filter Robustness Lower compatibility End effect M-estimation method

Discriminative Histogram Intersection Metric Learning and Its Applications

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Journal of Computer Science & Technology 2017年第3期32卷 507-519页

作者： Peng-Yi Hao Yang Xia Xiao-Xin Li Sei-ichiro Kamata Sheng-Yong Chen College of Computer Science and Technology Zhejiang University of Technology Hangzhou 310023 China Graduate School of Information Production and Systems Waseda University Kitakyushu 808-0135 Japan

In this paper, a novel method called discriminative histogram intersection metric learning （DHIML） is proposed for pair matching and classification. Specifically, we introduce a discrimination term for learning a metric from binary infor-mation such as same/not-same or similar/dissimilar, and then combine it with the classification error for the discrimination in classifier construction. Compared with conventional approaches, the proposed method has several advantages. 1） The histogram intersection strategy is adopted into metric learning to deal with the widely used histogram features effectively. 2） By introducing discriminative term and classification error term into metric learning, a more discriminative distance metric and a classifier can be learned together. 3） The objective function is robust to outliers and noises for both features and labels in the training. The performance of the proposed method is tested on four applications： face verification, face-track identification, face-track clustering, and image classification. Evaluations on the challenging restricted protocol of Labeled Faces in the Wild （LFW） benchmark, a dataset with more than 7000 face-tracks, and Caltech-101 dataset validate the robustness and discriminability of the proposed metric learning, compared with the recent state-of-the-art approaches.

关键词： metric learning pair matching image classification face verification

A High-Precision US-Guided Robot-Assisted HIFU Treatment System for Breast Cancer

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Engineering 2018年第5期4卷 702-713页

作者： Tianhan Tang Takashi Azuma Toshihide Iwahashi Hideki Takeuchi Etsuko Kobayashi ichiro Sakuma Graduate School of Engineering The University of Tokyo Tokyo 113-8656 Japan Graduate School of Medicine The University of Tokyo Tokyo 113-8654 Japan

乳腺癌是女性中最常见的癌症。高强度聚焦超声(波)(HIFU)是一种很有前景的非介入式治疗方法。为了提高HIFU治疗的精确度和降低治疗成本,开发了一套基于超声引导(US)的五自由度辅助HIFU系统。搭建了一套功能齐全的样机,它可以轻松地实现... 详细信息

乳腺癌是女性中最常见的癌症。高强度聚焦超声(波)(HIFU)是一种很有前景的非介入式治疗方法。为了提高HIFU治疗的精确度和降低治疗成本,开发了一套基于超声引导(US)的五自由度辅助HIFU系统。搭建了一套功能齐全的样机,它可以轻松地实现三维超声图像重建、目标分割、治疗路径生成和HIFU自动照射等功能。利用线模型实现点定位,并且在异构组织模型上对凝固区域进行评估。在超声引导下,HIFU治疗区域的中心偏离目标治疗区域中心不到2 mm。规划治疗区域周围出现的超调值远低于在临床使用的允许值。对于乳腺癌的治疗,本系统有足够的准确性。

关键词：乳腺癌自由度机器人计算机技术

Osmotic pressure of serum and cerebrospinal fluid in patients with suspected neurological conditions

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Neural Regeneration Research 2020年第5期15卷 944-947页

作者： Tetsuya Akaishi Toshiyuki Takahashi ichiro Nakashima Michiaki Abe Masashi Aoki Tadashi Ishii Department of Education and Support for Regional Medicine Tohoku University HospitalSendaiJapan Department of Neurology Tohoku University Graduate School of MedicineSendaiJapan Department of Neurology National Hospital Organization Yonezawa National HospitalYonezawaJapan Department of Neurology Tohoku Medical and Pharmaceutical UniversitySendaiJapan

Interstitial fluid movement in the brain parenchyma has been suggested to contribute to sustaining the metabolism in brain parenchyma and maintaining the function of neurons and glial *** pulsatile hydrostatic pressure gradient may be one of the driving forces of this bulk ***,osmotic pressure- related factors have not been studied until *** this prospective observational study,to elucidate the relationship between osmolality (mOsm/kg) in the serum and that in the cerebrospinal fluid (CSF),we simultaneously measured the serum and CSF osmolality of 179 subjects with suspected neurological *** osmolality was 283.6 ± 6.5 mOsm/kg and CSF osmolality was 289.5 ± 6.6 mOsm/*** the specific gravity of serum and CSF is known to be 1.024–1.028 and 1.004–1.007,respectively,the estimated average of osmolarity (mOsm/L) in the serum and CSF covered exactly the same range (i.e.,290.5–291.5 mOsm/L).There was strong correlation between CSF osmolality and serum osmolality,but the difference in osmolality between serum and CSF was not correlated with serum osmolality,serum electrolyte levels,protein levels,or quotient of *** conclusion,CSF osmolarity was suggested to be equal to serum *** is not one of the driving forces of this bulk *** factors such as hydrostatic pressure gradient should be used to explain the mechanism of bulk flow in the brain *** study was approved by the Institutional Review Board of the Tohoku University Hospital (approval *** No.2015-1-257) on July 29,2015.

关键词： brain parenchyma bulk flow cerebrospinal fluid hydrostatic pressure interstitial fluid osmolarity osmotic pressure