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61篇 您的检索式:作者名="Kav"
    题名 作者 年代 出处 被引量
1How useful is rectal endosonography in the staging of rectal cancer?显示文摘It is essential in treating rectal cancer to have adequate preoperative imaging,as accurate staging can influence the management strategy,type of resection,and candidacy for neoadjuvant therapy.In the last twenty years,endorectal ultrasound(ERUS) has become the primary method for locoregional staging of rectal cancer.ERUS is the most accurate modality for assessing local depth of invasion of rectal carcinoma into the rectal wall layers(T stage) .Lower accuracy for T2 tumors is commonly reported,which could lead to sonographic overstaging of T3 tumors following preoperative therapy.Unfortunately,ERUS is not as good for predicting nodal metastases as it is for tumor depth,which could be related to the unclear definition of nodal metastases.The use of multiple criteria might improve accuracy.Failure to evaluate nodal status could lead to inadequate surgical resection.ERUS can accurately distinguish early cancers from advanced ones,with a high detection rate of residual carcinoma in the rectal wall.ERUS is also useful for detection of local recurrence at the anastomosis site,which might require fine-needle aspiration of the tissue.Overstaging is more frequent than understaging,mostly due to inflammatory changes.Limitations of ERUS are operator and experiencedependency,limited tolerance of patients,and limited range of depth of the transducer.The ERUS technique requires a learning curve for orientation and identification of images and planes.With sufficient time and effort,quality and accuracy of the ERUS procedure could be improved.Taylan Kav Yusuf Bayraktar 2010World Journal of Gastroenterology2010,16,6:34
2基于弧度距离的时间序列相似度量显示文摘时间序列的近似表示和相似度量是时间序列数据挖掘的重要任务之一,是进行相似匹配的关键。该文针对现有的各种基于分段线性表示(Piecewise Linear Representation,PLR)相似度量方法存在的序列长度依赖和多分辨率条件下的潜在识别误差等缺点,提出了一种序列分段线性弧度表示和基于弧度距离的相似度量方法,实现了序列的快速在线分割和相似度计算。该方法简洁直观,利用分段弧度对分段趋势进行细粒度划分来保留序列主要形态特征,有效地提高了度量结果的准确性和多分辨率条件下的稳定性。该方法具有序列分割算法独立性特点,可用于时间序列的相似查询、模式匹配、分类和聚类。丁永伟 杨小虎 陈根才 Kavs A J 2011电子与信息学报2011,33,1:18
3Outcomes of partial splenic embolization in patients with massive splenomegaly due to idiopathic portal hypertension显示文摘AIM To determine the outcomes of partial splenic em-bolization(PSE) for massive splenomegaly due to idiopathic portal hypertension(IPH).METHODS In this prospective study, we evaluated the charac-teristics and prognosis of consecutive patients with IPH who underwent PSE for all indications at a single medical center between June 2009 and January 2015. The inclusion criteria were: presence of hypersplenism, massive splenomegaly, and resultant pancytopenia. The exclusion criteria were: presence of other diseases causing portal hypertension. During the post-PSE period, the patients were hospitalized. All patients underwent abdominal computed tomography imaging 4 wk post-PSE to determine total splenic and non-infarcted splenic volumes.RESULTS A total of 11 patients, with median age of 33.27 ± 4.8 years, were included in the study. Mean spleen size was 22.9 cm(21-28 cm), and severe hypersplenismwas diagnosed in all patients before PSE. Post-PSE, leukocyte and platelet counts increased significantly, reaching peak levels in the second week with gradual decreases thereafter. Liver function tests did not exhibit significant changes during post-intervention follow-up. All patients developed post-embolization syndrome, and one patient experienced serious complications; all complications were successfully treated with conservative therapy and no death occurred. CONCLUSION Our findings showed that PSE has a lower complication rate than previously-reported surgical complication rates, which supports this intervention as a viable alternative for high-risk operable patients with severe hypersplenism.Omer Ozturk Gonca Eldem Bora Peynircioglu Taylan Kav Aysegul Gormez Barbaros Erhan Cil Ferhun Balkanci Cenk Sokmensuer Yusuf Bayraktar 2016World Journal of Gastroenterology2016,22,43:18
4Five years' experience with capsule endoscopy in a single center显示文摘Capsule endoscopy (CE) is a novel technology that facilitates highly effective and noninvasive imaging of the small bowel. Although its effi cacy in the evaluation of obscure gastrointestinal bleeding (OGIB) has been proven in several trials, data on uses of CE in different small bowel diseases are rapidly accumulating in the literature, and it has been found to be superior to alternative diagnostic tools in a range of such diseases. Based on literature evidence, CE is recommended as a first-line investigation for OGIB after negative bi-directional endoscopy. CE has gained an important role in the diagnosis and follow-up of Crohn's disease and celiac disease and in the surveillance of small bowel tumors and polyps in selected patients. Capsule retention is the major complication, with a frequency of 1%-2%. The purpose of this review was to discuss the procedure, indications, contraindications and adverse effects associated with CE. We also review and share our five-year experience with CE in various small bowel diseases. The recently developed balloon-assisted enteroscopies have both diagnostic and therapeutic capability. At the present time, CE and balloon-assisted enteroscopies are complementary techniques in the diagnosis and management of small bowel diseases.Taylan Kav Yusuf Bayraktar 2009World Journal of Gastroenterology2009,15,16:14
5Relationship between serum adenosine deaminase levels and liver histology in autoimmune hepatitis显示文摘AIM To evaluate the relationship between serum adenosine deaminase(ADA) levels and histological features in patients with autoimmune hepatitis(AIH).METHODS A total of 80 subjects(52 AIH cases and 28 healthy controls) were included in the study. Patients were diagnosed according to the simplified criteria suggested by the International Autoimmune Hepatitis Group. All of the cases had been diagnosed with AIH between 2010-2015 at Hacettepe University, Department of Gastroenterology. Serum blood samples were collected and stored at-80 ℃ until the biochemical estimation of ADA activity. The diagnosis of patients was confirmed by liver biopsy. Serum ADA > 20 U/L was considered to be high level.RESULTS Mean serum ADA levels were significantly higher in AIH patients than those in healthy controls(25.4 ± 9.6 U/L vs 12.8 ± 2.2 U/L, P < 0.001). Serum ADA levels > 20 U/L were found in 63.5% AIH patients and in 0% healthy controls(P < 0.001). Mean serum ADA levels were significantly increased in each stage of histological activity: 15.2 ± 3.5 U/L for patients with mild interface hepatitis, 23.1 ± 10.0 U/L for patients with moderate interface hepatitis and 30.9 ± 7.0 U/L for patients with severe interface hepatitis(P < 0.001). Correlation analysis showed that there was a positive association between serum ADA levels and histological activity(r = 0.71, P < 0.001). Receiver operating characteristic analysis suggested that 24.5 U/L was the optimum cut-off point of ADA level for severe interface hepatitis(sensitivity 88%, specificity 85.2%, area under thecurve: 0.88).CONCLUSION Because of the positive correlation with inflammatory activity, serum ADA level may be a potential biomarker for predicting or monitoring histological activity in patients with AIH.Murat Torgutalp Cumali Efe Hakan Babaoglu Taylan Kav 2017World Journal of Gastroenterology2017,23,21:10
6基于RBAC的跨多企业服务组合访问控制模型显示文摘为了解决单域环境下访问控制模型无法满足跨企业服务组合的访问授权需求的问题,提出一种以基于角色访问控制(RBAC)为基础的多域动态访问授权模型.根据组合服务的流程结构分析服务执行所需的权限,提出一个权限最小化的角色集挖掘算法,从原有的面向单域的角色授权关系中搜索满足服务执行的角色集.针对组合服务中的跨域操作进行端对端的域间自主授权协商,并根据挖据出的角色集建立最小成本的跨域角色映射以满足跨域访问授权需求.在此基础上提出一套与现有的工业标准相结合运行时框架,实现根据组合服务实际运行状态进行授权的动态访问控制机制.模拟实验结果验证模型中的该算法的主要部分在多种不同场景下的有效性.张帅 孙建伶 徐斌 黄超 KAVS Aleksander J 2012浙江大学学报(工学版)2012,46,11:6
7Factors Associated With Response to Therapy and Outcome of Patients With Primary Biliary Cirrhosis With Features of Autoimmune Hepatitis显示文摘Ersan Ozaslan Cumali Efe Alexandra Heurgué–Berlot Taylan Kav Chiara Masi Tugrul Purnak Luigi Muratori Yücel Ustündag Solange Bresson–Hadni Gérard Thiéfin Thomas D. Schiano Staffan Wahlin Paolo Muratori 2014Clinical Gastroenterology and Hepatology2014,,:3
8Proteomic analysis of egg white proteins during storage显示文摘Omana D A Liang Y Kav N N V 0,,:1
9显示文摘 Kav NB Peterson IC 2000Leukemia2000,14,:1
10Litter fall litter accumulation and litter decomposition rates in four forest ecosystems in northern Greece 显示文摘Kav vaadias V A Aliffagis D Tsiontsis A 2001Forest Ecology Management2001,144,13:1
11Proteome-level investigation of Brassica carinata derived resistance to Leptosphaeria maculans显示文摘Subramanian B Bansal V K Kav N N 2005Journal of Agricultural and Food Chemistry2005,53,:1
12New numerical procedure for the prediction of temperature development in early age concrete structures显示文摘Anka Ilc Goran Turk Franci Kav?i? Gregor Trtnik 2009Automation in Construction2009,,6:1
13Intestinal perforation as a complication of balloon assisted enteroscopy显示文摘Kav T 2010Endoscopy2010,42,10:1
14Long range mutual information显示文摘Nahur Fonseca Mark Crovella Kavé Salamatian 2008ACM SIGMETRICS Performance Evaluation Review2008,,2:1
15Low back pain:prevalence and associated risk factors among hospital staff显示文摘Karahan A Kav S Abbasoglu A 2009Adv Nurs2009,65,3:1
16Duodenal large mess causing severe anemia missed by capsule endoscopy but detected by single balloon enteroscopy显示文摘Kav T Dumlu G Tirnaksiz B 0,,:1
17Detection of aflatoxin M1 levels by ELISA in white-brined Urfa cheese consumed in Turkey显示文摘Kursat Kav Ramazan Col K. Kaan Tekinsen 2011Food Control2011,,12:1
18Long-term creep behavior of 9-12%Cr power plant steels显示文摘SKLENIKAV KUCHAROVK SVOBODA M 2003Materials Characterization2003,51,1:1
19Effect of nutritional stress on Capsaicin production to immebilized cell culture of capsaicin annum显示文摘Ravishan Kav GA 1998Curf Sci1998,57,7:1
20Detection of aflatoxin M1 levels by ELISA in white-brined Urfa cheese con- sumed in Turkey显示文摘Kav K Col R Kaan Tekinsen K 2011Food Control2011,22,12:1
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