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| 1 | FBP、ASiR和VEO三种重建算法对常规剂量胸部CT图像质量的影响显示文摘目的探讨滤波反投影(FBP)、自适应统计迭代重建技术(ASiR)和基于模型的迭代重建算法(MBIR,商品名'VEO')三种重建技术对常规剂量胸部薄层CT图像质量的影响。方法应用能谱CT对15例成年患者行胸部增强CT扫描,扫描条件:100kVp,自动毫安,噪声指数15,螺距0.984∶1,球管转速0.4秒/圈。分别用FBP、50%ASiR(50%比例ASiR和FBP混合以降低噪声)和VEO三种重建算法对原始数据行0.625mm薄层重建,测量图像噪声及胸主动脉与背部肌肉的对比噪声比(CNR),并对3组图像分别进行质量评分,然后行对比分析。结果FBP、50%ASiR和VEO三组图像的噪声分别为24.30±3.55、17.11±2.55及11.69±1.74,50%ASiR和VEO组图像噪声分别较FBP组降低29.59%和51.89%(P均<0.01);胸主动脉与背部肌肉的CNR FBP、50%ASiR和VEO三组图像分别为10.56±3.05、15.15±3.88及21.69±5.62,50%ASiR和VEO组图像CNR较FBP组分别提高43.47%和105.40%(P均<0.01);图像质量主观评分FBP、50%ASiR和VEO三组图像分别为4.03±0.72、4.63±0.41及5.75±0.25,50%ASiR和VEO组图像较FBP组分别提高14.89%和42.68%(P均<0.01)。结论与FBP重建算法比较,在相同剂量条件下,50%ASiR和VEO能显著降低胸部CT图像噪声并提高图像质量;其中VEO重建算法降噪及提高图像质量效果更为显著。 | 吴瑶媛 王万勤 刘斌 Isao Tanaka 张帅 | 2012 | 中国医学影像技术2012，28，3： | 55 |
| 2 | Usefulness of urinary trypsinogen-2 and trypsinogen activation peptide in acute pancreatitis:A multicenter study in Japan显示文摘BACKGROUND Rapid urinary trypsinogen-2 dipstick test and levels of urinary trypsinogen-2 and trypsinogen activation peptide(TAP) concentration have been reported as prognostic markers for the diagnosis of acute pancreatitis.AIM To reconfirm the validity of all these markers in the diagnosis of acute pancreatitis by undertaking a multi-center study in Japan.METHODS Patients with acute abdominal pain were recruited from 17 medical institutions in Japan from April 2009 to December 2012. Urinary and serum samples were collected twice, at enrollment and on the following day for measuring target markers. The diagnosis and severity assessment of acute pancreatitis were assessed based on prognostic factors and computed tomography(CT) Grade of the Japanese Ministry of Health, Labour, and Welfare criteria.RESULTS A total of 94 patients were enrolled during the study period. The trypsinogen-2 dipstick test was positive in 57 of 78 patients with acute pancreatitis(sensitivity,73.1%) and in 6 of 16 patients with abdominal pain but without any evidence of acute pancreatitis(specificity, 62.5%). The area under the curve(AUC) score of urinary trypsinogen-2 according to prognostic factors was 0.704, which was highest in all parameter. The AUC scores of urinary trypsinogen-2 and TAP according to CT Grade were 0.701 and 0.692, respectively, which shows higher than other pancreatic enzymes. The levels of urinary trypsinogen-2 and TAP were significantly higher in patients with extended extra-pancreatic inflammation as evaluated by CT Grade.CONCLUSION We reconfirmed urinary trypsinogen-2 dipstick test is useful as a marker for the diagnosis of acute pancreatitis. Urinary trypsinogen-2 and TAP may be considered as useful markers to determine extra-pancreatic inflammation in acute pancreatitis. | Hiroaki Yasuda Keisho Kataoka Yoshifumi Takeyama Kazunori Takeda Tetsuhide Ito Toshihiko Mayumi Shuji Isaji Tetsuya Mine Motoji Kitagawa Seiki Kiriyama Junichi Sakagami Atsushi Masamune Kazuo Inui Kenji Hirano Ryukichi Akashi Masamichi Yokoe Yoshio Sogame Kazuichi Okazaki Chie Morioka Yasuyuki Kihara Shigeyuki Kawa Masao Tanaka Akira Andoh Wataru Kimura Isao Nishimori Junji Furuse Isao Yokota Tooru Shimosegawa | 2019 | World Journal of Gastroenterology2019，25，1： | 7 |
| 3 | Clinical diagnostic criteria of autoimmune pancreatitis: revised proposal显示文摘 | Kazuichi Okazaki Shigeyuki Kawa Terumi Kamisawa Satoru Naruse Shigeki Tanaka Isao Nishimori Hirotaka Ohara Tetsuhide Ito Seiki Kiriyama Kazuro Inui Tooru Shimosegawa Masaru Koizumi Koichi Suda Keiko Shiratori Koji Yamaguchi Taketo Yamaguchi Masanori Sugiy | 2006 | Journal of Gastroenterology2006，，7： | 3 |
| 4 | Distribution of HBV genotypes among HBV carriers in Benin:phylogenetic analysis and virological characteristics of HBV genotype E显示文摘AIM: To determine the distribution of Hepatitis B virus (HBV) genotypes in Benin, and to clarify the virological characteristics of the dominant genotype.METHODS: Among 500 blood donors in Benin, 21 HBsAg-positive donors were enrolled in the study. HBV genotypes were determined by enzyme immunoassay and restriction fragment length polymorphism. Complete genome sequences were determined by PCR and direct sequencing.RESULTS: HBV genotype E (HBV/E) was detected in 20/21 (95.2%), and HBV/A in 1/21 (4.8%). From the age-specific prevalence of HBeAg to anti-HBe seroconversion (SC) in 19 HBV/E subjects, SC was estimated to occur frequently in late teens in HBV/E.The comparison of four complete HBV/E genomes from HBeAg-positive subjects in this study and five HBV/E sequences recruited from the database revealed that HBV/E was distributed throughout West Africa with very low genetic divers ity (nucleotide homology 96.7-99.2%).Based on the sequences in the basic core promoter (BCP)to precore region of the nine HBV/E isolates compared to those of the other genotypes, a nucleotide substitution in the BCP, G1757A, was observed in HBV/E.CONCLUSION: HBV/E is predominant in the Republic of Benin, and SC is estimated to occur in late teens in HBV/E. The specific nucleotide substitution G1757A in BCP, which might influence the virological characteristics,is observed in HBV/E. | Kei Fujiwara Yasuhito Tanaka Etsuro Orito Tomoyoshi Ohno Takanobu Kato Kanji Sugihara Izumi Hasegawa Mayumi Sakurai Kiyoaki Ito Atsushi Ozasa Yuko Sakamoto Isao Arita Ahmed El-Gohary Agossou Benoit Sophie I Ogoundele-Akplogan Namiko Yoshihara Ryuzo Ueda Masashi Mizokami | 2005 | World Journal of Gastroenterology2005，11，41： | 3 |
| 5 | Successful embolization assisted by covered stents for a pseudoaneurysm following pancreatic surgery显示文摘Delayed intra-abdominal hemorrhage after pancreatic surgery is a potentially lethal complication.Transarterial coil embolization and/or the placing of an endovascular stent are minimally invasive and effective procedures.An artery that is extensively eroded and rendered friable due to operative skeletonization or postoperative inflammation sometimes contributes to delayed intra-abdominal hemorrhage or rebleeding after coil embolization.This report presents a case of successful management of postoperative hemorrhage in a-74-year-old Japanese male.He experienced bleeding from a pseudoaneurysm of the brittle hepatic artery following total pancreatectomy.Initially the pseudoaneurysm was successfully treated with covered coronary stent-grafts,but rebleeding occurred 1 mo later due to the brittleness of the artery.Rebleeding was definitively managed by the complete packing of the stent by coil embolization.He remains stable at 18 mo following the f inal embolization.A stent graft can be used for protecting a brittle artery to avoid injury by coil embolization. | Koji Tanaka Hiroaki Ohigashi Hidenori Takahashi Kunihito Gotoh Terumasa Yamada Isao Miyashiro Masahiko Yano Osamu Ishikawa | 2010 | World Journal of Gastrointestinal Surgery2010，2，9： | 2 |
| 6 | Temperature-dependent phonon spectra of magnetic random solid solutions显示文摘A first-principles-based computational tool for simulating phonons of magnetic random solid solutions including thermal magnetic fluctuations is developed.The method takes fluctuations of force constants due to magnetic excitations as well as due to chemical disorder into account.The developed approach correctly predicts the experimentally observed unusual phonon hardening of a transverse acoustic mode in Fe–Pd an Fe–Pt Invar alloys with increasing temperature.This peculiar behavior,which cannot be explained within a conventional harmonic picture,turns out to be a consequence of thermal magnetic fluctuations.The proposed methodology can be straightforwardly applied to a wide range of materials to reveal new insights into physical behaviors and to design materials through computation,which were not accessible so far. | Yuji Ikeda Fritz Körmann Biswanath Dutta Abel Carreras Atsuto Seko Jörg Neugebauer Isao Tanaka | 2018 | npj Computational Materials2018，，1： | 2 |
| 7 | Crystal and electronic structures of superstructural Li1-xO2 (0≤x≤ 1)显示文摘 | YUKINORI Koyama ISAO Tanaka HIROHIKO Adachi | 2003 | J Power Sources2003，，： | 1 |
| 8 | A new triphenyl-type neolignan and a biphenylneolignan from the barks of Illicium simonsii显示文摘 | Isao Kouno Chifumi Iwamoto Yukl Kameda Takashi Tanaka Chun-shu Yang | 1994 | Chem Pharm Bull1994，42，1： | 1 |
| 9 | Preparation of highly crystalline nanofibers on Fe and Fe–Ni catalysts with a variety of graphene plane alignments显示文摘 | Atsushi Tanaka Seong-Ho Yoon Isao Mochida | 2003 | Carbon2003，，3： | 1 |
| 10 | A novel black tea pigment and two new oxidation products of epigallocatechin-3-o-gallate显示文摘 | Takashi Tanaka Yosuke Matsuo Isao Kouno | 2005 | Journal of Agricultural and Food Chemistry2005，53，75： | 1 |
| 11 | Fabrication of three-dimensional tyranno fibre reinforced sic composite by the polymer precursor method显示文摘 | Takahiro Tanaka Nobuyuki Tamari Isao Kondo Mikio Iwasa | 1998 | Ceramics International1998，，5： | 1 |
| 12 | CEA-Antigen and SCC-Antigen mRNA Expression in Peripheral Blood Predict Hematogenous Recurrence After Resection in Patients with Esophageal Cancer显示文摘 | Koji Tanaka Masahiko Yano Masaaki Motoori Kentaro Kishi Isao Miyashiro Tatsushi Shingai Kunihito Gotoh Shingo Noura Hidenori Takahashi Masayuki Ohue Terumasa Yamada Hiroaki Ohigashi Takashi Yamamoto Tomoyuki Yamasaki Yuichiro Doki Osamu Ishikawa | 2010 | Annals of Surgical Oncology2010，，： | 1 |
| 13 | Crystal and electronic structures of superstructural Lil - x O2 (0 ≤ x≤1)显示文摘 | Yukinori Koyama Isao Tanaka Hirohiko Adachi | 2003 | J Power Sources2003，，： | 1 |
| 14 | A study on the process for formation of sphericalcement through an examination of the changes of powder properties and electrical charges of the cement and its constituent materials during surface modification显示文摘 | Isao Tanaka Masumi Koishi Kunio Shinohara | 2002 | Cement and Concrete Research2002，32，1： | 1 |
| 15 | Perfluorooctanesulfonate and perfluorooctanoate in raw and treated tap water from Osaka, Japan显示文摘 | Sokichi Takagi Fumie Adachi Keiichi Miyano Yoshihiko Koizumi Hidetsugu Tanaka Mayumi Mimura Isao Watanabe Shinsuke Tanabe Kurunthachalam Kannan | 2008 | Chemosphere2008，，10： | 1 |
| 16 | Trypanocidal activity of extracts and compounds from the stem bark of Anogeissus leiocarpus and Terminalia avicennoides显示文摘 | Mohammed N. Shuaibu Ponchang T. A. Wuyep Tetsuo Yanagi Kenji Hirayama Akitoyo Ichinose Takashi Tanaka Isao Kouno | 2008 | Parasitology Research2008，，： | 1 |
| 17 | Clinical diagnostic criteria of autoimmune pancreatitis: revised proposal显示文摘 | Kazuichi Okazaki Shigeyuki Kawa Terumi Kamisawa Satoru Naruse Shigeki Tanaka Isao Nishimori Hirotaka Ohara Tetsuhide Ito Seiki Kiriyama Kazuro Inui Tooru Shimosegawa Masaru Koizumi Koichi Suda Keiko Shiratori Koji Yamaguchi Taketo Yamaguchi Masanori Sugiy | 2006 | Journal of Gastroenterology2006，，7： | 1 |
| 18 | Oxidation of tea catechins:chemical structures and reaction mechanism显示文摘 | TAKASHI TANAKA ISAO KOUNO | 2003 | Food Sci Technol Res2003，9，2： | 1 |
| 19 | Fabrication of three-dimensional tyranno fibre reinforced sic composite by the polymer precursor method显示文摘 | Takahiro Tanaka Nobuyuki Tamari Isao Kondo Mikio Iwasa | 1998 | Ceramics International1998，，5： | 1 |
| 20 | Clinical diagnostic criteria of autoimmune pancreatitis: revised proposal显示文摘 | Kazuichi Okazaki Shigeyuki Kawa Terumi Kamisawa Satoru Naruse Shigeki Tanaka Isao Nishimori Hirotaka Ohara Tetsuhide Ito Seiki Kiriyama Kazuro Inui Tooru Shimosegawa Masaru Koizumi Koichi Suda Keiko Shiratori Koji Yamaguchi Taketo Yamaguchi Masanori Sugiy | 2006 | Journal of Gastroenterology2006，，7： | 1 |
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