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| 1 | Biomarkers for the early diagnosis of hepatocellular carcinoma显示文摘Hepatocellular carcinoma(HCC) is the fifth most common cancer and the second leading cause of cancer-related deaths worldwide. Although the prognosis of patients with HCC is generally poor, the5-year survival rate is > 70% if patients are diagnosed at an early stage. However, early diagnosis of HCC is complicated by the coexistence of inflammation and cirrhosis. Thus, novel biomarkers for the early diagnosis of HCC are required. Currently, the diagnosis of HCC without pathological correlation is achieved by analyzing serum α.fetoprotein levels combined with imaging techniques. Advances in genomics and proteomics platforms and biomarker assay techniques over the last decade have resulted in the identification of numerous novel biomarkers and have improved the diagnosis of HCC. The most promising biomarkers,such as glypican-3, osteopontin, Golgi protein-73 and nucleic acids including microRNAs, are most likely to become clinically validated in the near future. These biomarkers are not only useful for early diagnosis of HCC, but also provide insight into the mechanisms driving oncogenesis. In addition, such molecular insight creates the basis for the development of potentially more effective treatment strategies. In this article,we provide an overview of the biomarkers that are currently used for the early diagnosis of HCC. | Nobuhiro Tsuchiya Yu Sawada Itaru Endo Keigo Saito Yasushi Uemura Tetsuya Nakatsura | 2015 | World Journal of Gastroenterology2015，21，37： | 72 |
| 2 | Endovascular technique using a snare and suture for retrieving a migrated peripherally inserted central catheter in the left pulmonary artery显示文摘We report a successful endovascular technique using a snare with a suture for retrieving a migrated broken peripherally inserted central catheter(PICC)in a chemotherapy patient.A 62-year-old male received monthly chemotherapy through a central venous port implanted into his right subclavian area.The patient completed chemotherapy without complications 1 mo ago;however,he experienced pain in the right subclavian area during his last chemotherapy session.Computed tomography on that day showed migration of a broken PICC in his left pulmonary artery,for which the patient was admitted to our hospital.We attempted to retrieve the ectopic PICC through the right jugular vein using a gooseneck snare,but were unsuccessful because the catheter was lodged in the pulmonary artery wall.Therefore,a second attempt was made through the right femoral vein using a snare with triple loops,but we could not grasp the migrated PICC.Finally,a string was tied to thetop of the snare,allowing us to curve the snare toward the pulmonary artery by pulling the string.Finally,the catheter body was grasped and retrieved.The endovascular suture technique is occasionally extremely useful and should be considered by interventional cardiologists for retrieving migrated catheters. | Hiroki Teragawa Takashi Sueda Yuichi Fujii Hiroaki Takemoto Yasushi Toyota Shuichi Nomura Keigo Nakagawa | 2013 | World Journal of Cardiology2013，5，9： | 9 |
| 3 | Long-term prognostic impact of circulating tumour cells in gastric cancer patients显示文摘AIM To analyse the long-term prognostic impact of circulating tumour cells(CTCs) in gastric cancer patients who underwent surgery. METHODS A 7.5-m L peripheral vein blood sample was obtained from each patient with treatment-negative gastric adenocarcinoma before surgery. OBP-401, a telomerasespecific, replication-selective, oncolytic adenoviral agent carrying the green fluorescent protein gene, was used to label CTCs. Correlations between the number of CTCs and clinical end points were evaluated. RESULTS The median follow-up period of the surviving patients with gastric cancer was 60 mo. The CTC number tended to increase concomitantly with disease progression. The overall survival of patients with more than five CTCs in 7.5-m L of peripheral blood was lower than that of patients with five or less CTCs, although the difference was not significant(P = 0.183). A significant difference in relapse-free survival was found between patients with more than five and those with five or less CTCs(P = 0.034).CONCLUSION A lower number of CTCs was correlated with higher relapse-free survival rates in patients. Detection of CTCs using OBP-401 may be useful for predicting prognosis in gastric cancer. | Hiroaki Ito Jun Sato Yukio Tsujino Noriko Yamaguchi Satoshi Kimura Keigo Gohda Katsuhiro Murakami Manabu Onimaru Tohru Ohmori Fumihiro Ishikawa Haruhiro Inoue | 2016 | World Journal of Gastroenterology2016，22，46： | 8 |
| 4 | Crowned dens syndrome developed after an endoscopic retrograde cholangiopancreatography procedure显示文摘We present a unique case of crowned dens syndrome(CDS) that developed after endoscopic retrograde cholangiopancreatography(ERCP) in a patient who presented with fever and neck pain. Administration of non-steroidal anti-inflammatory drugs was extremely effective for relieving fever and neck pain, and in the improvement of inflammatory markers. To the best of our knowledge, this is the first case report of CDS caused by an ERCP procedure. In a patient with fever and neck pain after an ERCP procedure, CDS should be considered in the differential diagnosis. | Hiroyasu Nakano Kazunari Nakahara Yosuke Michikawa Keigo Suetani Ryo Morita Nobuyuki Matsumoto Fumio Itoh | 2016 | World Journal of Gastroenterology2016，22，39： | 5 |
| 5 | Virtual liver resection: computer-assisted operation planning using a three-dimensional liver representation显示文摘 | Yoshihiro Mise Keigo Tani Taku Aoki Yoshihiro Sakamoto Kiyoshi Hasegawa Yasuhiko Sugawara Norihiro Kokudo | 2013 | Journal of Hepato-Biliary-Pancreatic Sciences2013，，2： | 4 |
| 6 | Need for pancreatic stenting after sphincterotomy in patients with difficult cannulation显示文摘AIM:To investigate the need for pancreatic stenting after endoscopic sphincterotomy(EST)in patients with difficult biliary cannulation.METHODS:Between April 2008 and August 2013,2136 patients underwent endoscopic retrograde cholangiopancreatography(ERCP)-related procedures.Among them,55 patients with difficult biliary cannulation who underwent EST after bile duct cannulation using the pancreatic duct guidewire placement method(P-GW)were divided into two groups:a stent group(n=24;pancreatic stent placed)and a no-stent group(n=31;no pancreatic stenting).We retrospectively compared the two groups to examine the need for pancreatic stenting to prevent post-ERCP pancreatitis(PEP)in patients undergoing EST after biliary cannulation by P-GW.RESULTS:No differences in patient characteristics or endoscopic procedures were observed between the two groups.The incidence of PEP was 4.2%(1/24)and29.0%(9/31)in the Stent and no-stent groups,respectively,with the no-stent group having a significantly higher incidence(P=0.031).The PEP severity was mild for all the patients in the stent group.In contrast,8 had mild PEP and 1 had moderate PEP in the no-stent group.The mean serum amylase levels(means±SD)3 h after ERCP(183.1±136.7 vs 463.6±510.4 IU/L,P=0.006)and on the day after ERCP(209.5±208.7vs 684.4±759.3 IU/L,P=0.002)were significantly higher in the no-stent group.A multivariate analysis identified the absence of pancreatic stenting(P=0.045;odds ratio,9.7;95%CI:1.1-90)as a significant risk factor for PEP.CONCLUSION:In patients with difficult cannulation in whom the bile duct is cannulated using P-GW,a pancreatic stent should be placed even if EST has been performed. | Kazunari Nakahara Chiaki Okuse Keigo Suetani Yosuke Michikawa Shinjiro Kobayashi Takehito Otsubo Fumio Itoh | 2014 | World Journal of Gastroenterology2014，20，26： | 4 |
| 7 | Thrombomodulin in the management of acute cholangitisinduced disseminated intravascular coagulation显示文摘AIM: To evaluate the need for thrombomodulin(r TM) therapy for disseminated intravascular coagulation(DIC) in patients with acute cholangitis(AC)-induced DIC. METHODS: Sixty-six patients who were diagnosedwith AC-induced DIC and who were treated at our hospital were enrolled in this study. The diagnoses of AC and DIC were made based on the 2013 Tokyo Guidelines and the DIC diagnostic criteria as defined by the Japanese Association for Acute Medicine, respectively. Thirty consecutive patients who were treated with r TM between April 2010 and September 2013(r TM group) were compared to 36 patients who were treated without r TM(before the introduction of r TM therapy at our hospital) between January 2005 and January 2010(control group). The two groups were compared in terms of patient characteristics at the time of DIC diagnosis(including age, sex, primary disease, severity of cholangitis, DIC score, biliary drainage, and anti-DIC drugs), the DIC resolution rate, DIC score, the systemic inflammatory response syndrome(SIRS) score, hematological values, and outcomes. Using logistic regression analysis based on multivariate analyses, we also examined factors that contributed to persistent DIC. RESULTS: There were no differences between the r TM group and the control group in terms of the patients' backgrounds other than administration. DIC resolution rates on day 9 were higher in the r TM group than in the control group(83.3% vs 52.8%, P < 0.01). The mean DIC scores on day 7 were lower in the r TM group than in the control group(2.1 ± 2.1 vs 3.5 ± 2.3, P = 0.02). The mean SIRS scores on day 3 were significantly lower in the r TM group than in the control group(1.1 ± 1.1 vs 1.8 ± 1.1, P = 0.03). Mortality on day 28 was 13.3% in the r TM group and 27.8% in the control group; these rates were not significantly different(P = 0.26). Multivariate analysis identified only the absence of biliary drainage as significantly associated with persistent DIC(P < 0.01, OR = 12, 95%CI: 2.3-60). Although the difference did not reach statistical significance, primary diseases(malignancies)(P = 0.055, OR = 3.9, 95%CI: 0.97-16) and the non-use of r TM had a tendency to be associated with persistent DIC(P = 0.08, OR = 4.3, 95%CI: 0.84-22).CONCLUSION: The add-on effects of r TM are anticipated in the treatment of AC-induced DIC, although biliary drainage for AC remains crucial. | Keigo Suetani Chiaki Okuse Kazunari Nakahara Yosuke Michikawa Yohei Noguchi Midori Suzuki Ryo Morita Nozomi Sato Masaki Kato Fumio Itoh | 2015 | World Journal of Gastroenterology2015，21，2： | 4 |
| 8 | Epstein–Barr virus-associated hemophagocytic syndrome in a patient with ulcerative colitis during treatment with azathioprine: A case report and review of literature显示文摘A 19-year-old female was diagnosed with ulcerative colitis when she presented with persistent melena, and has been treated with 5-aminosalicylic acid for 4 years,with additional azathioprine for 2 years at our hospital.The patient experienced high-grade fevers, chills, and cough five d prior to presenting to the outpatient unit.At first, the patient was suspected to have developed neutropenic fever; however, she was diagnosed with Epstein-Barr virus-associated hemophagocytic syndrome(EB-VAHS) upon fulfilling the diagnostic criteria after bone marrow aspiration. When patients withinflammatory bowel disease treated with immunomodulators, such as thiopurine preparations, develop fever, EB-VAHS should be considered in the differential diagnosis. | Kazuya Miyaguchi Minoru Yamaoka Yoshikazu Tsuzuki Keigo Ashitani Hideki Ohgo Yoshitaka Miyagawa Keisuke Ishizawa Hidekazu Kayano Hidetomo Nakamoto Hiroyuki Imaeda | 2018 | World Journal of Clinical Cases2018，6，14： | 3 |
| 9 | Effectiveness of therapeutic barium enema for diverticular hemorrhage显示文摘AIM:To evaluate the effectiveness of barium impaction therapy for patients with colonic diverticular bleeding.METHODS:We reviewed the clinical charts of patients in whom therapeutic barium enema was performed for the control of diverticular bleeding between August2010 and March 2012 at Yokohama Rosai Hospital.Twenty patients were included in the review,consisting of 14 men and 6 women.The median age of the patients was 73.5 years.The duration of the followup period ranged from 1 to 19 mo(median:9.8 mo).Among the 20 patients were 11 patients who required the procedure for re-bleeding during hospitalization,6patients who required it for re-bleeding that developed after the patient left the hospital,and 3 patients who required the procedure for the prevention of rebleeding.Barium(concentration:150 w%/v%)was administered per the rectum,and the leading edge of the contrast medium was followed up to the cecum by fluoroscopy.After confirmation that the ascending colon and cecum were filled with barium,the enema tube was withdrawn,and the patient’s position was changed every 20 min for 3 h.RESULTS:Twelve patients remained free of rebleeding during the follow-up period(range:1-19mo)after the therapeutic barium enema,including 9men and 3 women with a median age of 72.0 years.Re-bleeding occurred in 8 patients including 5 men and 3 women with a median age of 68.5 years:4developed early re-bleeding,defined as re-bleeding that occurs within one week after the procedure,and the remaining 4 developed late re-bleeding.The DFI(disease-free interval)decreased 0.4 for 12 mo.Only one patient developed a complication from therapeutic barium enema(colonic perforation).CONCLUSION:Therapeutic barium enema is effective for the control of diverticular hemorrhage in cases where the active bleeding site cannot be identified by colonoscopy. | Mizue Matsuura Masahiko Inamori Atsushi Nakajima Yasuhiko Komiya Yumi Inoh Keigo Kawasima Mai Naitoh Yuji Fujita Akiko Eduka Noriyoshi Kanazawa Shiori Uchiyama Rie Tani Kennichi Kawana Setsuya Ohtani Hajime Nagase | 2015 | World Journal of Gastroenterology2015，21，18： | 2 |
| 10 | Transarterial 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 | 2010 | World Journal of Radiology2010，2，12： | 2 |
| 11 | Muscle hematoma:A critically important complication of alcoholic liver cirrhosis显示文摘An iliopsoas hematoma can occur either spontaneously or secondary to trauma or bleeding tendency due to hemophilia and anticoagulant therapy.Although liver cirrhosis is commonly associated with coagulopathy, iliopsoas hematoma is very rare.We herein,present a case of bilateral iliopsoas hematoma in a patient with alcoholic cirrhosis,and review the literature on muscle hematoma associated with cirrhosis.A 56-year-old man with alcoholic cirrhosis was admitted in a state of shock with anemia.The cause of anemia could not be detected,and the patient was treated conservatively. The site of bleeding was not detected with either gastroduodenal endoscopy or upper abdominal computed tomography,the latter of which did not include the iliopsoas muscle.He died on the 10th day of admission and bilateral iliopsoas hematomas were found on autopsy.An iron stain was positive in the iliopsoas muscle.Eight cases of muscle hematoma associated with cirrhosis,including the present case, were found in a review of the literature.Four of these cases involved the rectus abdominis muscle,3 involved the iliopsoas muscle and 1 involved combined muscles.Alcoholic cirrhosis accounted for 75%of the cases.One case(12.5%)was associated with virus- related cirrhosis,and another with combined virus- and alcohol-related cirrhosis.The mortality rate was 75%despite early diagnosis and low risk scores for cirrhosis.Muscle hematoma in patients with cirrhosis isclosely related to alcoholism,and the mortality rate of the condition is extremely high.In conclusion,muscle hematoma should be recognized as an important complication of cirrhosis. | Chiyo Sugiyama Akifumi Akai Noriyoshi Yamakita Tsuneko Ikeda Keigo Yasuda | 2009 | World Journal of Gastroenterology2009，15，35： | 2 |
| 12 | Adaptive Learning with Large Variability of Teaching Signals for Neural Networks and Its Application to Motion Control of an Industrial Robot显示文摘Recently, various control methods represented by proportional-integral-derivative (PID) control are used for robotic control. To cope with the requirements for high response and precision, advanced feedforward controllers such as gravity compensator, Coriolis/centrifugal force compensator and friction compensators have been built in the controller. Generally, it causes heavy computational load when calculating the compensating value within a short sampling period. In this paper, integrated recurrent neural networks are applied as a feedforward controller for PUMA560 manipulator. The feedforward controller works instead of gravity and Coriolis/centrifugal force compensators. In the learning process of the neural network by using back propagation algorithm, the learning coefficient and gain of sigmoid function are tuned intuitively and empirically according to teaching signals. The tuning is complicated because it is being conducted by trial and error. Especially, when the scale of teaching signal is large, the problem becomes crucial. To cope with the problem which concerns the learning performance, a simple and adaptive learning technique for large scale teaching signals is proposed. The learning techniques and control effectiveness are evaluated through simulations using the dynamic model of PUMA560 manipulator. | Fusaomi Nagata Keigo Watanabe | 2011 | International Journal of Automation and computing2011，8，1： | 2 |
| 13 | Evaluation of 18F-2-deoxy-2-fluoro-d-glucose Positron Emission Tomography for Gastric Cancer显示文摘 | Erito Mochiki Hiroyuki Kuwano Hiroyuki Katoh Takayuki Asao Noboru Oriuchi Keigo Endo | 2004 | World Journal of Surgery2004，，3： | 2 |
| 14 | Water-assisted self-sustained burning of metallic single-walled carbon nanotubes for scalable transistor fabrication显示文摘Although aligned arrays of semiconducting single-walled carbon nanotubes(s-SWNTs) are promising for use in next-generation electronics owing to theirultrathin bodies and ideal electrical properties, even a small portion of metallic(m-) counterparts causes excessive leakage in field-effect transistors (FETs).To fully exploit the benefits of s-SWNTs for use in large-scale systems, it isnecessary to completely eliminate m-SWNTs from as-grown SWNT arrays andthereby obtain purely semiconducting large-area arrays, wherein numerousFETs can be flexibly built. In this study, we performed electrical burning ofm-SWNTs assisted by water vapor and polymer coating to eliminate m-SWNTsover a long length for the scalable fabrication of transistors from the remainings-SWNT arrays. During the electrical-breakdown process, the combination ofwater vapor and the polymer coating significantly enhanced the burning ofthe SWNTs, resulting in a self-sustained reaction along the nanotube axis. Wefound that m-SWNT segments partially remaining on the anode side resultedfrom one-way burning from the initial breakdown position, where Joule-heating-induced oxidation first occurred. The s-SWNT-enriched arrays obtained wereused to fabricate multiple FETs with a high on-off current ratio. The resultsindicate the advantages of this approach over conventional electrical breakdownfor the large-scale purification of s-SWNTs. | Keigo Otsuka Taiki Inoue Yuki Shimomura Shohei Chiashi Shigeo Maruyama | 2017 | Nano Research2017，10，9： | 2 |
| 15 | Quantification of hepatic arterial and portal perfusion with dynamic computed tomography: comparison of maximum-slope and dual-input one-compartment model methods显示文摘 | Masaya Miyazaki Yoshito Tsushima Akiko Miyazaki Bishnuhari Paudyal Makoto Amanuma Keigo Endo | 2009 | Japanese Journal of Radiology2009，，3： | 2 |
| 16 | Characterization of a microsecond pulsed non-equilibrium atmospheric pressure Ar plasma using laser scattering and optical emission spectroscopy显示文摘A non-equilibrium atmospheric pressure argon(Ar)plasma excited by microsecond pulse is studied experimentally by laser scattering and optical emission spectroscopy(OES),and theoretically by collisional-radiative(CR)model.More specifically,the electron temperature and electron density of plasma are obtained directly by the laser Thomson scattering,the gas temperature is measured by laser Raman scattering,the optical emissions of excited Ar states of plasma are measured by OES.The laser scattering results show that the electron temperature is about 1 eV which is similar to that excited by 60 Hz AC power,but the gas temperature is as low as 300 K compared to about 700 K excited by 60 Hz AC power.It is shown that the microsecond pulsed power supply,rather than nanosecond ones,is short enough to reduce the gas temperature of atmospheric pressure plasma to near room temperature.The electron temperature and electron density are also obtained by CR model based on OES,and find that the intensities of the optical emission intensity lines of 727.41,811.73,841.08,842.83,852.44 and 912.86 nm of Ar can be used to characterize the behavior of electron density and electron temperature,it is very useful to quickly estimate the activity of the atmospheric pressure Ar plasma in many applications. | 贾凤东 吴勇 敏琦 苏茂根 Keigo TAKEDA Kenji ISHIKAWA Hiroki KONDO Makoto SEKINE Masaru HORI 钟志萍 | 2020 | Plasma Science and Technology2020，22，6： | 2 |
| 17 | A New Thoracic Reconstruction Technique “Transforaminal Thoracic Interbody Fusion”: A Preliminary Report of Clinical Outcomes显示文摘 | Masaaki Machino Yasutsugu Yukawa Keigo Ito Hiroaki Nakashima Fumihiko Kato | 2010 | Spine2010，，19： | 2 |
| 18 | Mechanical Properties of Carbon Epoxy Prepreg Insert Phenolic Resin Injection Moldings显示文摘This study focuses on the insert-injection molding process. The thermoset composite inserts in this study were carbon fiber/epoxy (CF/Epoxy) prepreg sheets. The injected molded part was glass fiber contained phenolic resin (GF/PF). The CF/Epoxy was placed in the mold cavity prior to injecting GF/PF onto the inserted injection molded CF/Epoxy specimens. The role of adhesion between the inserted part and injected resin on the mechanical properties was evaluated by 3 point bending and impact tests. In addition, the effect of prepreg orientation on the mechanical properties of the prepreg inserted-injection molding system was investigated. It was found that the prepreg with unidirectional orientation significantly improved flexural and impact strength of the inserted injection molding composites, providing better support and resistance to bending and impact loading. The main failure modes of the specimens were structural and adhesive failure. | PINPATHOMRAT Badin KEIGO Nishitani THUMSORN Supaphom Narongchai O-Charoen Yuqiu YANG HAMADA Hiroyuki | 2019 | 纤维复合材料2019，36，2： | 2 |
| 19 | Simulation of the Interphase of Insert Injection Moldings显示文摘In this work, the generalizing of the finite element method (FEM) of thermoplastic prepreg insert injection molding composites was investigated. The specimens were prepared using glass fiber/polyamidc 6 (GF/PA6) inserted prepreg, and their characteristics were investigated and compared under ANSYS workbench program. The prediction of the bending initial fracture point under analytical tensile testing with interlayer on prepreg insert moldings was focused. It was found that the bending initial fracture point was applied to predict by matching the shear stress. There was obtained from analytical tensile testing and bending analysis. Therefore, it can be obtained the optimum of the clastic modulus ratio on the injection part/interlayer/insert part by using FEM via ANSYS workbench. | Keigo Nishitani Badin Pinpathomrat Narongchai O-Charoen Yuqiu Yang Hiroyuki Hamada | 2019 | 纤维复合材料2019，36，2： | 2 |
| 20 | Machining Robot with Vibrational Motion and 3D Printer-like Data Interface显示文摘In this paper, a vibration motion control is proposed and implemented on a foamed polystyrene machining robot to suppress the generation of undesirable cusp marks, and the basic performance of the controller is verified through machining experiments of foamed polystyrene. Then, a 3 dimensional(3D) printer-like data interface is proposed for the machining robot. The 3D data interface enables to control the machining robot directly using stereolithography(STL) data without conducting any computer-aided manufacturing(CAM) process. This is done by developing a robotic preprocessor that helps to remove the need for the conventional CAM process by directly converting the STL data into cutter location source data called cutter location(CL) or cutter location source(CLS)data. The STL is a file format proposed by 3D systems, and recently is supported by many computer aided design(CAD)/CAM softwares. The STL is widely used for rapid prototyping with a 3D printer which is a typical additive manufacturing system. The STL deals with a triangular representation of a curved surface geometry. The developed 3D printer-like data interface allows to directly control the machining robot through a zigzag path, rectangular spiral path and circular spiral path generated according to the information included in STL data. The effectiveness and usefulness of the developed system are demonstrated through actual machining experiments. | Fusaomi Nagata Keigo Watanabe Maki K. Habib | 2018 | International Journal of Automation and computing2018，15，1： | 2 |
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