result 749 件
| Author | Kobayashi, Katsuhiro| |
|---|---|
| Published Date | 2016-12-01 |
| Publication Title | Journal of Okayama Medical Association |
| Volume | volume128 |
| Issue | issue3 |
| Content Type | Journal Article |
| JaLCDOI | 10.18926/AMO/54605 |
|---|---|
| FullText URL | 70_5_417.pdf |
| Author | Mizukawa, Sho| Kato, Hironari| Muro, Shinichiro| Akimoto, Yutaka| Uchida, Daisuke| Tomoda, Takeshi| Matsumoto, Kazuyuki| Yamamoto, Naoki| Horiguchi, Shigeru| Tsutsumi, Koichiro| Okada, Hiroyuki| Inoue, Hirofumi| Tanaka, Noriyuki| |
| Abstract | Endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) is a standard procedure for precise histological diagnosis of pancreas tumors, but it is sometimes difficult to obtain adequate specimens. EUS Sonopsy CY® is a newly designed needle with original features. This randomized study will compare the tissue collection rate of EUS Sonopsy CY® to that of a conventional needle in EUS-FNA. The major eligibility criteria are as follows: Patients with a pancreatic mass referred for EUSFNA; age ≥20 years, and performance status＜4. The primary outcome is the tissue collection rate. This study will elucidate the efficacy of EUS Sonopsy CY®. |
| Keywords | endoscopic ultrasound-guided fine needle aspiration pancreatic cancer Menghini type needle tip |
| Amo Type | Clinical Study Protocols |
| Publication Title | Acta Medica Okayama |
| Published Date | 2016-10 |
| Volume | volume70 |
| Issue | issue5 |
| Publisher | Okayama University Medical School |
| Start Page | 417 |
| End Page | 420 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2016 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 27777439 |
| Web of Science KeyUT | 000388098700016 |
| JaLCDOI | 10.18926/AMO/54602 |
|---|---|
| FullText URL | 70_5_405.pdf |
| Author | Tomoda, Takeshi| Kato, Hironari| Mizukawa, Sho| Muro, Shinichiro| Akimoto, Yutaka| Uchida, Daisuke| Matsumoto, Kazuyuki| Yamamoto, Naoki| Horiguchi, Shigeru| Tsutsumi, Koichiro| Okada, Hiroyuki| |
| Abstract | Acute pancreatitis is the major complication of endoscopic retrograde cholangiopancreatography (ERCP). A preliminary research suggested that the administration of nonsteroidal anti-inflammatory drugs (NSAIDs) with nitroglycerin might reduce the incidence of post-ERCP pancreatitis (PEP) more effectively than NSAIDs alone. We conduct a two-arm, multicenter, prospective, randomized, superiority trial to evaluate the additional effect of nitroglycerin for prevention of PEP. A total of 900 patients randomly receive 50 mg diclofenac suppository either alone or with 5 mg isosorbide dinitrate sublingual tablet. The primary endpoint is the occurrence of PEP. This study will clarify whether NSAIDs plus nitroglycerin can prevent PEP. |
| Keywords | post-ERCP pancreatitis NSAIDs nitroglycerin |
| Amo Type | Clinical Study Protocols |
| Note | the word “nitroglycerin” should be corrected to “nitrate” throughout the manuscript.| |
| Publication Title | Acta Medica Okayama |
| Published Date | 2016-10 |
| Volume | volume70 |
| Issue | issue5 |
| Publisher | Okayama University Medical School |
| Start Page | 405 |
| End Page | 408 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2016 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 27777436 |
| Web of Science KeyUT | 000388098700013 |
| Related Url | isReplacedBy http://doi.org/10.18926/AMO/55314 |
| JaLCDOI | 10.18926/AMO/54513 |
|---|---|
| FullText URL | 70_4_323.pdf |
| Author | Yamamoto, Naoki| Kato, Hironari| Mizukawa, Sho| Muro, Shinichiro| Akimoto, Yutaka| Uchida, Daisuke| Tomoda, Takeshi| Matsumoto, Kazuyuki| Horiguchi, Shigeru| Tsutsumi, Koichiro| Okada, Hiroyuki| |
| Abstract | Contrast-enhanced harmonic endoscopic ultrasonography (CH-EUS) with contrast agent enabled us to assess the hemodynamics closely, despite limited data in pancreatic tumors. We have initiated a prospective, single arm, and non-randomized study to clarify the accuracy and safety of CH-EUS with Sonazoid and time-intensity curve (TIC) analysis for diagnosing benign or malignant pancreatic tumors. A total of 200 patients will undergo CH-EUS and TIC analysis. Receiver operating characteristic (ROC) analysis will be used to determine the optimal parameter cutoff values for TIC analysis. This will clarify whether CH-EUS and TIC can further improve the diagnosis of pancreatic tumors over conventional EUS. |
| Keywords | CH-EUS pancreatic tumor TIC |
| Amo Type | Clinical Study Protocols |
| Publication Title | Acta Medica Okayama |
| Published Date | 2016-08 |
| Volume | volume70 |
| Issue | issue4 |
| Publisher | Okayama University Medical School |
| Start Page | 323 |
| End Page | 325 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2016 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 27549682 |
| Web of Science KeyUT | 000384748600017 |
| JaLCDOI | 10.18926/AMO/54511 |
|---|---|
| FullText URL | 70_4_313.pdf |
| Author | Matsumoto, Kazuyuki| Kato, Hironari| Tsutsumi, Koichiro| Mizukawa, Sho| Yabe, Syuntaro| Seki, Hiroyuki| Akimoto, Yutaka| Uchida, Daisuke| Tomoda, Takeshi| Yamamoto, Naoki| Horiguchi, Shigeru| Okada, Hiroyuki| |
| Abstract | Recently, endoscopic ultrasonography (EUS)-guided ethanol ablation for small pancreatic neuroendocrine tumors (p-NETs) has been reported. However, the efficacy and safety of the technique remain unclear. We have launched a prospective pilot study of EUS-guided ethanol ablation for p-NETs. The major eligibility criteria are the presence of a pathologically diagnosed grade (G) 1 or G2 p-NET, a tumor size of 2cm, and being a poor candidate for surgery. A total of 5 patients will be treated. The primary endpoint will be the complete ablation rate at 1 month after treatment. |
| Keywords | pancreatic neuroendocrine tumor ethanol ablation EUS-guided |
| Amo Type | Clinical Study Protocols |
| Publication Title | Acta Medica Okayama |
| Published Date | 2016-08 |
| Volume | volume70 |
| Issue | issue4 |
| Publisher | Okayama University Medical School |
| Start Page | 313 |
| End Page | 316 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2016 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 27549680 |
| Web of Science KeyUT | 000384748600015 |
| JaLCDOI | 10.18926/AMO/54420 |
|---|---|
| FullText URL | 70_3_205.pdf |
| Author | Kozaki, Ken-ichi| Kawakami, Shigehisa| Konishi, Takayuki| Ohta, Keiji| Yano, Jitsuro| Onoda, Tomoo| Matsumoto, Hiroshi| Mizukawa, Nobuyoshi| Kimata, Yoshihiro| Nishizaki, Kazunori| Iida, Seiji| Gofuku, Akio| Abe, Masanobu| Minagi, Shogo| Okayama Dream Speech Project| |
| Abstract | A palatal augmentation prosthesis (PAP) is used to facilitate improvement in the speech and swallowing functions of patients with tongue resection or tongue movement disorders. However, a PAPʼs effect is limited in cases where articulation disorder is severe due to wide glossectomy and/or segmental mandibulectomy. In this paper, we describe speech outcomes of a patient with an articulation disorder following glossectomy and segmental mandibulectomy. We used a palatal plate (PP) based on a PAP, along with an artificial tongue (KAT). Speech improvement was evaluated by a standardized speech intelligibility test consisting of 100 syllables. The speech intelligibility score was significantly higher when the patient wore both the PP and KAT than when he wore neither (p＝0.013). The conversational intelligibility score was significantly improved with the PP and KAT than without PP and KAT (p＝0.024). These results suggest that speech function can be improved in patients with hard tissue defects with segmental mandibulectomy using both a PP and a KAT. The nature of the design of the PP and that of the KAT will allow these prostheses to address a wide range of tissue defects. |
| Keywords | palatal augmentation prosthesis artificial tongue articulation disorder glossectomy mandibulectomy |
| Amo Type | Case Report |
| Publication Title | Acta Medica Okayama |
| Published Date | 2016-06 |
| Volume | volume70 |
| Issue | issue3 |
| Publisher | Okayama University Medical School |
| Start Page | 205 |
| End Page | 211 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2016 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 27339210 |
| Web of Science KeyUT | 000379406100008 |
| Author | Matsumoto, Kenichi| |
|---|---|
| Published Date | 2016-03-25 |
| Content Type | Thesis or Dissertation |
| JaLCDOI | 10.18926/AMO/54191 |
|---|---|
| FullText URL | 70_2_119.pdf |
| Author | Isozaki, Hiroshi| Matsumoto, Sasau| Murakami, Shigeki| Takama, Takehiro| Sho, Tatuo| Ishihara, Kiyohiro| Sakai, Kunihiko| Takeda, Masanori| Nakada, Koji| Fujiwara, Toshiyoshi| |
| Abstract | Using the Postgastrectomy Syndrome Assessment Scale (PGSAS)-45, we compared the surgical outcomes and the quality of life (QOL) between patients undergoing limited gastrectomies and those undergoing conventional gastrectomies. In Oomoto Hospital between January 2004 and December 2013, a total of 124 patients who met the eligibility criteria were enrolled. Using the main outcome measures of PGSAS-45, we compared 4 types of limited gastrectomy procedures (1/2 distal gastrectomy [1/2DG] in 21 patients; pylorus-preserving gastrectomy [PPG] in 15 patients; segmental gastrectomy [SG] in 26 patients; and local resection [LR] in 13 patients) with conventional gastrectomy (total gastrectomy [TG] in 24 patients and 2/3 or more distal gastrectomy [WDG] in 25 patients). The TG group showed the worst QOL in almost all items of the main outcome measures. The 1/2DG, PPG, and SG groups showed better QOL than the WDG group in many of the main outcome measures, including the body weight ratio, total symptom score, ingested amount of food per meal, and the dissatisfaction for daily life subscale. The LR group showed a better intake of food than the 1/2DG, PPG, and SG groups. The body weight ratio of the LR group was better than that of the SG group. Diminished gastric resection preserved better QOL in patients with early gastric cancer. |
| Keywords | limited gastrectomy early gastric cancer function preserving gastrectomy quality of life postgastrectomy syndrome |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2016-04 |
| Volume | volume70 |
| Issue | issue2 |
| Publisher | Okayama University Medical School |
| Start Page | 119 |
| End Page | 130 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2016 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 27094837 |
| Web of Science KeyUT | 000377626300007 |
| JaLCDOI | 10.18926/AMO/54185 |
|---|---|
| FullText URL | 70_2_69.pdf |
| Author | Kobayashi, Yasuyuki| Kurahashi, Hiroaki| Matsumoto, Yuko| Wada, Koichiro| Sasaki, Katsumi| Araki, Motoo| Ebara, Shin| Watanabe, Toyohiko| Nasu, Yasutomo| |
| Abstract | In minimally invasive partial nephrectomy (MIPN), it is important to preoperatively predict the degree of difficulty of tumor resection. When severe adhesions occur between the renal capsule and perinephric adipose tissue, detachment can be difficult. Preoperative prediction of adhesion is thought to be useful in the selection of surgical procedure. Subjects were 63 patients of a single surgeon who had received MIPN between April 2008 and August 2013 at Okayama University Hospital. Of these patients, this study followed 47 in whom the presence or absence of adhesions between the renal capsule and perinephric adipose tissue was confirmed using intraoperative videos. Data collected included: sex, BMI, CT finding (presence of fibroids in perinephric adipose tissue), comorbidities and lifestyle. Adhesion was observed in 7 patients (14.9%). The mean operative time was 291.6min in the adhesion group, and 226.3min in the group without. The increased time in the adhesions group was significant (p＜0.05). Predictive factors were a positive CT finding for fibroid structure and comorbidity of hypertension (p＜0.05). In MIPN, difficulty of surgery can be affected by the presence of adhesion of the perinephric adipose tissue. Predicting such adhesion from preoperative CT is thus important. |
| Keywords | renal cell carcinoma partial nephrectomy renal capsule adhension |
| Amo Type | Original Article |
| Publication Title | Acta Medica Okayama |
| Published Date | 2016-04 |
| Volume | volume70 |
| Issue | issue2 |
| Publisher | Okayama University Medical School |
| Start Page | 69 |
| End Page | 74 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| Content Type | Journal Article |
| language | English |
| Copyright Holders | CopyrightⒸ 2016 by Okayama University Medical School |
| File Version | publisher |
| Refereed | True |
| PubMed ID | 27094831 |
| Web of Science KeyUT | 000377626300001 |
| JaLCDOI | 10.18926/OER/54161 |
|---|---|
| Title Alternative | Mixed Oligopoly and Product Differentiation: The Privatization Effect of a Public Firm in the General Case of the Number of Private Firms |
| FullText URL | oer_047_3_083_095.pdf |
| Author | Matsumoto, Naoki| |
| Publication Title | 岡山大学経済学会雑誌 |
| Published Date | 2016-03-19 |
| Volume | volume47 |
| Issue | issue3 |
| Start Page | 83 |
| End Page | 95 |
| ISSN | 0386-3069 |
| language | Japanese |
| Copyright Holders | Copyright © 2016 岡山大学経済学会 |
| File Version | publisher |
| NAID | 120005740499 |
| Title Alternative | Behçetʼs disease complicated by ileocecal and esophageal perforation |
|---|---|
| FullText URL | 128_27.pdf |
| Author | Tsukumo, Yuta| Kawamoto, Kazuyuki| Takagi, Kosei| Chin, Kai| Matsuba, Yuri| Nagahisa, Yoshio| Okabe, Michio| Shirakawa, Yasuhiro| Itoh, Tadashi| Fujiwara, Toshiyoshi| |
| Abstract | A 36-year-old Japanese man known to have incomplete Behçet’s disease (oral aphthous ulcers, genital ulcers, skin lesions, and esophageal and ileocecal ulcers) was admitted to our hospital in January 2011 for abdominal pain. We administered corticosteroids and immunosuppressants. Two months later, we performed an ileocecal resection to control gastrointestinal bleeding from the ileocecal ulcers. High fever persisted after this surgery, and upper gastrointestinal endoscopy demonstrated ulcer penetration between the lower and abdominal esophagus. Eighteen days after the initial ileocecal resection, we performed a lower esophagus resection, gastric tube reconstruction and enterostomy, during which we confirmed a 5-mm-dia. perforated site at the posterior wall of the abdominal esophagus. Postoperative anastomotic leakage and empyema occurred, but they were relieved by thoracic drainage and empyema dissection. |
| Keywords | ベーチェット病（Behçet’s disease） 食道（esophagus） 回盲部（ileocecal） 穿孔（perforation） 手術（surgery） |
| Publication Title | 岡山医学会雑誌 |
| Published Date | 2016-04-01 |
| Volume | volume128 |
| Issue | issue1 |
| Start Page | 27 |
| End Page | 32 |
| ISSN | 0030-1558 |
| Related Url | isVersionOf https://doi.org/10.4044/joma.128.27 |
| language | Japanese |
| Copyright Holders | Copyright (c) 2016 岡山医学会 |
| File Version | publisher |
| DOI | 10.4044/joma.128.27 |
| NAID | 130005149603 |
| Title Alternative | A case of mucinous adenocarcinoma of the duodenum and literature review of 16 cases reported in Japan |
|---|---|
| FullText URL | 128_21.pdf |
| Author | Hamano, Ikumi| Matsumoto, Yusuke| Endo, Yoshikatsu| Watanabe, Naoki| Kai, Kyouhei| Sato, Shizou| Wani, Yoji| |
| Abstract | Primary mucinous adenocarcinoma of the duodenum is rare. Here we report a case we recently encountered, and we review 16 cases reported in Japan. An 82-year-old Japanese woman was admitted to our hospital complaining of abdominal pain and heartburn. An endoscopic examination revealed a Type 2 tumor in the descending limb of the duodenum, and endoscopically obtained specimens revealed a poorly differentiated adenocarcinoma. We performed a curative pancreatoduodenectomy with lymph node resection, and the surgical specimen revealed that the duodenum was the primary site of the mucinous adenocarcinoma. The patient is currently alive ＞ 1 year after the operation without any evidence of recurrence. Of the 16 patients reviewed, all patients had advanced tumors those depth were T3-T4. 9 patients had lymph node metastasis and 4 patients had peritoneal dissemination at the time of surgery. Since mucinous adenocarcinoma of the duodenum is often progressive cancer at a diagnosis, which is tend to have a worse prognosis than other histological types. |
| Keywords | 原発性十二指腸癌（primary duodenal cancer） 粘液癌（mucinous carcinoma） 膵頭十二指腸切除（pancreatoduodenectomy） |
| Publication Title | 岡山医学会雑誌 |
| Published Date | 2016-04-01 |
| Volume | volume128 |
| Issue | issue1 |
| Start Page | 21 |
| End Page | 25 |
| ISSN | 0030-1558 |
| Related Url | isVersionOf https://doi.org/10.4044/joma.128.21 |
| language | Japanese |
| Copyright Holders | Copyright (c) 2016 岡山医学会 |
| File Version | publisher |
| DOI | 10.4044/joma.128.21 |
| NAID | 130005149602 |
| Title Alternative | Current state of and views regarding clinical approarches to Helicobacter pylori infection |
|---|---|
| FullText URL | 128_13.pdf |
| Author | Okada, Hiroyuki| |
| Keywords | Helicobacter pylori 除菌療法 胃癌 胃炎 MALT リンパ腫 |
| Publication Title | 岡山医学会雑誌 |
| Published Date | 2016-04-01 |
| Volume | volume128 |
| Issue | issue1 |
| Start Page | 13 |
| End Page | 19 |
| ISSN | 0030-1558 |
| Related Url | isVersionOf https://doi.org/10.4044/joma.128.13 |
| language | Japanese |
| Copyright Holders | Copyright (c) 2016 岡山医学会 |
| File Version | publisher |
| DOI | 10.4044/joma.128.13 |
| NAID | 130005149601 |
| Author | Taketa, Hiroaki| Gulsan, Ara Sathi| Mahmoud, Farahat| Kazi, Anisur Rahman| Sakai, Takayoshi| Hirano, Yoshiaki| Kuboki, Takuo| Torii, Yasuhiro| Matsumoto, Takuya| |
|---|---|
| Published Date | 2015 |
| Publication Title | Scientific reports |
| Volume | volume5 |
| Content Type | Journal Article |
| Author | Matsumoto, Takuya| |
|---|---|
| Published Date | 2015-08 |
| Publication Title | Okayama University Medical Research Updates |
| Volume | volume13 |
| Content Type | Others |
| Author | Matsumoto, Masakazu| Yagasaki, Takuma| Tanaka, Hideki| |
|---|---|
| Published Date | 2015-11-06 |
| Publication Title | Physical Review Letters |
| Volume | volume115 |
| Issue | issue19 |
| Content Type | Journal Article |
| Title Alternative | New antimalarial endoperoxides for drug-resistant Plasmodium falciparumn : The current situation |
|---|---|
| FullText URL | 127_231.pdf |
| Author | Kim, Hye-Sook| Katamoto, Akane| Sato, Akira| Wataya, Yusuke| Doi, Hiroyuki| |
| Keywords | 薬剤耐性マラリア ACT療法（artemisinin-based combination therapy） 新薬開発 環状過酸化物 標的分子 |
| Publication Title | 岡山医学会雑誌 |
| Published Date | 2015-12-01 |
| Volume | volume127 |
| Issue | issue3 |
| Start Page | 231 |
| End Page | 235 |
| ISSN | 0030-1558 |
| Related Url | isVersionOf https://doi.org/10.4044/joma.127.231 |
| language | Japanese |
| Copyright Holders | Copyright (c) 2015 岡山医学会 |
| File Version | publisher |
| DOI | 10.4044/joma.127.231 |
| NAID | 130005116817 |
| Title Alternative | Successful laparoscopic resection of a cecal tumor in a 95-year-old man |
|---|---|
| FullText URL | 127_117.pdf |
| Author | Watanabe, Ayako| Inada, Ryo| Nagasaka, Takeshi| Yagi, Tomohiko| Matsumoto, Hijiri| Toshima, Toshiaki| Kikuchi, Satoru| Kuroda, Shinshi| Kondo, Yoshitaka| Mori, Yoshiko| Kishimoto, Hiroyuki| Fujiwara, Toshiyoshi| |
| Abstract | We report a successful laparoscopic resection of a cecal tumor in a 95-year-old Japanese man. The patient visited an initial hospital with a complaint of constipation in March 2014. Computed tomography scan and colonoscopy showed a stenotic ileocecal cancer with pericolic lymph node metastases, and he was referred to our department for management. Since his general condition was maintained, we performed a laparoscopic ileocecal resection with regional lymph node dissection for the patient. The operation achieved curative resection, and the tumor was diagnosed as a moderately differentiated adenocarcinoma and graded as pStage IIIa (pT3, pN0, pM0) according to the Japanese Classification of Colorectal Carcinoma, eighth edition. He was discharged on the 11th postoperative day without perioperative complications. Several large-scale randomized controlled trials （RCTs） revealed that laparoscopic surgeries for colorectal cancers have some advantages compared to open surgeries, including superior short-term outcomes and comparable long-term outcomes. Unfortunately, since these RCTs did not include enough elderly patients, the safety and feasibility of laparoscopic surgery for extremely elderly patients are still unknown. With respect to less-invasive procedures, these advantages of laparoscopic surgery are also thought to be the advantages for elderly colorectal cancer patients. |
| Keywords | 超高齢者（extremely elderly patient） 大腸癌（colorectal cancer） 腹腔鏡手術（laparoscopic surgery） |
| Publication Title | 岡山医学会雑誌 |
| Published Date | 2015-08-03 |
| Volume | volume127 |
| Issue | issue2 |
| Start Page | 117 |
| End Page | 121 |
| ISSN | 0030-1558 |
| Related Url | isVersionOf https://doi.org/10.4044/joma.127.117 |
| language | Japanese |
| Copyright Holders | Copyright (c) 2015 岡山医学会 |
| File Version | publisher |
| DOI | 10.4044/joma.127.117 |
| NAID | 130005096253 |
| Title Alternative | The 2014 Incentive Award of the Okayama Medical Association in Neuroscience (2014 Niimi Prize) |
|---|---|
| FullText URL | 127_99.pdf |
| Author | Nakamura, Eri| |
| Publication Title | 岡山医学会雑誌 |
| Published Date | 2015-08-03 |
| Volume | volume127 |
| Issue | issue2 |
| Start Page | 99 |
| End Page | 101 |
| ISSN | 0030-1558 |
| Related Url | isVersionOf https://doi.org/10.4044/joma.127.99 |
| language | Japanese |
| Copyright Holders | Copyright (c) 2015 岡山医学会 |
| File Version | publisher |
| DOI | 10.4044/joma.127.99 |
| NAID | 130005096247 |
| JaLCDOI | 10.18926/ESR/53196 |
|---|---|
| Title Alternative | Precipitation characteristics and large-scale atmospheric fields on the heavy rainfall days in the eastern part of Japan (Climatological features in midsummer and the supplemental study for the Baiu season) |
| FullText URL | esr_021_1_033_043.pdf |
| Author | Matusmoto, Kengo| Kato, Kuranoshin| Otani, Kazuo| |
| Abstract | Rainfall characteristics and large-scale atmospheric fields on the “heavy rainfall days” (with more than 50mm/day) in midsummer, and so on, at Tokyo in the eastern Japan were examined for 1971 to 2010, succeeding to Matsumoto et al. (2013) The present study firstly examined the rainfall features and the atmospheric fields for the “heavy rainfall days” at Tokyo with rather lower appearance frequency than in the typhoon related patterns in Matsumoto et al. (2013) and so on. In these cases (three cases in total), although the synoptic situations were rather different among each other, they seem to occur under the systems with relatively small zonal scale associated with the great meander of the upper-level westerly wind. Next, the climatological analyses similar to Matsumoto et al. (2013) were performed for the "heavy rain days" at Tokyo in midsummer (1~31 August). The precipitation on the “heavy rainfall days” at Tokyo in midsummer was mainly brought by the intense rainfall with more than 10 mm/h, as in the western Japan in the mature stage of the Baiu season. The detailed examination of the rainfall features for the case on 10 August 2009, with use of the 10-minutes precipitation data and the Radar AMeDAS Composite Data by the JMA, revealed that the organized meso-β-scale convective rainfall systems as often appear in the western Japan in the mature stage of the Baiu season were just to the east of the typhoon, and brought the intense rainfall at Tokyo to result in the large daily precipitation. |
| Keywords | rainfall characteristics in eastern Japan heavy rainfall in eastern Japan in the Baiu and midsummer seasons rainfall climatology |
| Publication Title | Okayama University Earth Science Report |
| Published Date | 2014-12-27 |
| Volume | volume21 |
| Issue | issue1 |
| Start Page | 33 |
| End Page | 43 |
| ISSN | 1340-7414 |
| language | Japanese |
| Copyright Holders | © 2014 by Okayama University Earth Science Reports Editorial Committee All Rights Reserved |
| File Version | publisher |
| NAID | 120005567874 |
