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| 1 | 具有三个任意函数的变系数KdV-MKdV方程的精确类孤子解显示文摘利用一个新的变换将变系数 Kd V M Kd V 方程约化为三阶非线性常微分方程( N O D E) ,考虑这个 N O D E,获得了变系数 Kd V M Kd V 方程的若干精确类孤子解.这种思路也适合于其他的变系数非线性方程,如变系数 K P 方程、变系数sine Gordon 方程等. | 闫振亚 张鸿庆 | 1999 | 物理学报1999，48，11： | 92 |
| 2 | Endoscopic and surgical resection of T1a/T1b esophageal neoplasms: A systematic review显示文摘AIM: To investigate potential therapeutic recommendations for endoscopic and surgical resection of T1a/ T1b esophageal neoplasms. METHODS: A thorough search of electronic databases MEDLINE, Embase, Pubmed and Cochrane Library, from 1997 up to January 2011 was performed. An analysis was carried out, pooling the effects of outcomes of 4241 patients enrolled in 80 retrospective studies. For comparisons across studies, each reporting on only one endoscopic method, we used a random effects meta-regression of the log-odds of the outcome of treatment in each study. 'Neural networks' as a data mining technique was employed in order to establish a prediction model of lymph node status in superficial submucosal esophageal carcinoma. Another data mining technique, the 'feature selection and root cause analysis', was used to identify the most impor-tant predictors of local recurrence and metachronous cancer development in endoscopically resected patients, and lymph node positivity in squamous carcinoma (SCC) and adenocarcinoma (ADC) separately in surgically resected patients. RESULTS: Endoscopically resected patients: Low grade dysplasia was observed in 4% of patients, high grade dysplasia in 14.6%, carcinoma in situ in 19%, mucosal cancer in 54%, and submucosal cancer in 16% of patients. There were no significant differences between endoscopic mucosal resection and endoscopic submucosal dissection (ESD) for the following parameters: complications, patients submitted to surgery, positive margins, lymph node positivity, local recurrence and metachronous cancer. With regard to piecemeal resection, ESD performed better since the number of cases was significantly less [coefficient: -7.709438, 95%CI: (-11.03803, -4.380844), P < 0.001]; hence local recurrence rates were significantly lower [coefficient: -4.033528, 95%CI: (-6.151498, -1.915559),P < 0.01]. A higher rate of esophageal stenosis was observed following ESD [coefficient: 7.322266, 95%CI: (3.810146, 10.83439), P < 0.001]. A significantly greater number of SCC patients were submitted to surgery (log-odds, ADC: -2.1206 ± 0.6249 vs SCC: 4.1356 ± 0.4038, P < 0.05). The odds for re-classification of tumor stage after endoscopic resection were 53% and 39% for ADC and SCC, respectively. Local tumor recurrence was best predicted by grade 3 differentiation and piecemeal resection, metachronous cancer development by the carcinoma in situ component, and lymph node positivity by lymphovascular invasion. With regard to surgically resected patients: Significant differences in patients with positive lymph nodes were observed between ADC and SCC [coefficient: 1.889569, 95%CI: (0.3945146, 3.384624), P<0.01). In contrast, lymphovascular and microvascular invasion and grade 3 patients between histologic types were comparable, the respective rank order of the predictors of lymph node positivity was: Grade 3, lymphovascular invasion (L+), microvascular invasion (V+), submucosal (Sm) 3 invasion, Sm2 invasion and Sm1 invasion. Histologic type (ADC/SCC) was not included in the model. The best predictors for SCC lymph node positivity were Sm3 invasion and (V+). For ADC, the most important predictor was (L+). CONCLUSION: Local tumor recurrence is predicted by grade 3, metachronous cancer by the carcinoma insitu component, and lymph node positivity by L+. T1b cancer should be treated with surgical resection. | George Sgourakis Ines Gockel Hauke Lang | 2013 | World Journal of Gastroenterology2013，19，9： | 40 |
| 3 | Revisions to the Tumor,Node,Metastasis staging of lung cancer(8th edition):Rationale,radiologic findings and clinical implications显示文摘The Tumor, Node, Metastasis(TNM) staging system,adopted by the Union for International Cancer Control(UICC) and the American Joint Committee on Cancer(AJCC), has been recently revised, with the new 8^(th) edition of the staging manual being published in January 2017. This edition has few but important evidencebased changes to the TNM staging system used for lung cancer. Radiologists should be aware of the updated classification system to accurately provide staging information to oncologists and oncosurgeons. In this article, we discuss the rationale, illustrate the changes with relevance to Radiology, and review the clinical implications of the 8^(th) edition of the UICC/AJCC TNM staging system with regards to lung cancer. | Fernando U Kay Asha Kandathil Kiran Batra Sachin S Saboo Suhny Abbara Prabhakar Rajiah | 2017 | World Journal of Radiology2017，9，6： | 39 |
| 4 | Routine lymph node dissection may be not suitable for all intrahepatic cholangiocarcinoma patients: Results of a monocentric series显示文摘AIM:To investigate the indications for lymph node dissection(LND)in intrahepatic cholangiocarcinoma patients.METHODS:A retrospective analysis was conducted on 124 intrahepatic cholangiocarcinoma(ICC)patients who had undergone surgical resection of ICC from January 2006 to December 2007.Curative resection was attempted for all patients unless there were metastases to lymph nodes(LNs)beyond the hepatoduodenal ligament.Prophylactic LND was performed in patients in whom any enlarged LNs had been suspicious for metastases.The patients were classified according to the LND and LN metastases.Clinicopathologic,operative,and long-term survival data were collected retrospectively.The impact on survival of LND during primary resection was analyzed.RESULTS:Of 53 patients who had undergone hepatic resection with curative intent combined with regional LND,11 had lymph nodes metastases.Whether or not patients without lymph node involvement had undergone LND made no significant difference to their survival(P=0.822).Five patients with multiple tumors and involvement of lymph nodes underwent hepatic resection with LND;their survival curve did not differ significantly from that of the palliative resection group(P=0.744).However,there were significant differences in survival between patients with lymph node involvement and a solitary tumor who underwent hepatic resection with LND and the palliative resection group(median survival time 12 mo vs 6.0 mo,P=0.013).CONCLUSION:ICC patients without lymph node involvement and patients with multiple tumors and lymph node metastases may not benefit from aggressive lymphadenectomy.Routine LND should be considered with discretion. | Dong-Yu Li Hai-Bin Zhang Ning Yang Yuan Quan Guang-Shun Yang | 2013 | World Journal of Gastroenterology2013，19，47： | 31 |
| 5 | Prediction of risk factors for lymph node metastasis in early gastric cancer显示文摘AIM:To explore risk factors for lymph node metastases in early gastric cancer(EGC) and to confirm the appropriate range of lymph node dissection.METHODS:A total of 202 patients with EGC who underwent curative gastrectomy with lymphadenectomy in the Department of Surgery,Xinhua Hospital and Ruijin Hospital of Shanghai Jiaotong University Medical School between November 2003 and July 2009,were retrospectively reviewed.Both the surgical procedure and the extent of lymph node dissection were based on the recommendations of the Japanese gastric cancer treatment guidelines.The macroscopic type was classified as elevated(type Ⅰ or Ⅱa),flat(Ⅱb),or depressed(Ⅱc or Ⅲ).Histopathologically,papillary and tubular adenocarcinomas were grouped together as differentiated adenocarcinomas,and poorly differentiated and signet-ring cell adenocarcinomas were regarded as undifferentiated adenocarcinomas.Univariate and multivariate analyses of lymph node metastases and patient and tumor characteristics were undertaken.RESULTS:The lymph node metastases rate in patients with EGC was 14.4%.Among these,the rate for mucosal cancer was 5.4%,and 8.9% for submucosal cancer.Univariate analysis showed an obvious correlation between lymph node metastases and tumor location,depth of invasion,morphological classification and venous invasion(χ 2 = 122.901,P = 0.001;χ 2 = 7.14,P = 0.008;χ 2 = 79.523,P = 0.001;χ 2 = 8.687,P = 0.003,respectively).In patients with submucosal cancers,the lymph node metastases rate in patients with venous invasion(60%,3/5) was higher than in those without invasion(20%,15/75)(χ 2 = 4.301,P = 0.038).Multivariate logistic regression analysis revealed that the depth of invasion was the only independent risk factor for lymph node metastases in EGC [P = 0.018,Exp(B) = 2.744].Among the patients with lymph node metastases,29 cases(14.4%) were at N1,seven cases were at N2(3.5%),and two cases were at N3(1.0%).Univariate analysis of variance revealed a close relationship between the depth of invasion and lymph node metastases at pN 1(P = 0.008).CONCLUSION:The depth of invasion was the only independent risk factor for lymph node metastases.Risk factors for metastases should be considered when choosing surgery for EGC. | Gang Ren Rong Cai Wen-Jie Zhang Jin-Ming Ou Ye-Ning Jin Wen-Hua Li | 2013 | World Journal of Gastroenterology2013，19，20： | 31 |
| 6 | Clinical significance of lymph node metastasis in gastric cancer显示文摘Gastric cancer,one of the most common malignancies in the world,frequently reveals lymph node,peritoneum,and liver metastases.Most of gastric cancer patients present with lymph node metastasis when they were initially diagnosed or underwent surgical resection,which results in poor prognosis.Both the depth of tumor invasion and lymph node involvement are considered as the most important prognostic predictors of gastric cancer.Although extended lymphadenectomy was not considered a survival benefit procedure and was reported to be associated with high mortality and morbidity in two randomized controlled European trials,it showed significant superiority in terms of lower locoregional recurrence and disease related deaths compared to limited lymphadenectomy in a 15-year followup study.Almost all clinical investigators have reached a consensus that the predictive efficiency of the number of metastatic lymph nodes is far better than the extent of lymph node metastasis for the prognosis of gastric cancer worldwide,but other nodal metastatic classifications of gastric cancer have been proposed as alternatives to the number of metastatic lymph nodes for improving the predictive efficiency for patient prognosis.It is still controversial over whether the ratio between metastatic and examined lymph nodes is superior to the number of metastatic lymph nodes in prognostic evaluation of gastric cancer.Besides,the negative lymph node count has been increasingly recognized to be an important factor significantly associated with prognosis of gastric cancer. | Jing-Yu Deng Han Liang | 2014 | World Journal of Gastroenterology2014，20，14： | 32 |
| 7 | 基于图形化编程语言Labview设计虚拟仪器的方法显示文摘介绍了虚拟仪器的基本概念以及使用美国 NI公司的图形化编程语言 L | 邹翔 孙肖子 | 2003 | 现代电子技术2003，26，1： | 30 |
| 8 | Gastric cancer: Current status of lymph node dissection显示文摘D2 procedure has been accepted in Far East as the standard treatment for both early(EGC) and advanced gastric cancer(AGC) for many decades. Recently EGC has been successfully treated with endoscopy by endoscopic mucosal resection or endoscopic submucosal dissection, when restricted or extended Gotoda's criteria can be applied and D1+ surgery is offered only to patients not fitted for less invasive treatment. Furthermore, two randomised controlled trials(RCTs) have been demonstrating the non inferiority of minimally invasive technique as compared to standard open surgery for the treatment of early cases and recently the feasibility of adequate D1+ dissection has been demonstrated also for the robot assisted technique. In case of AGC the debate on the extent of nodal dissection has been open for many decades. While D2 gastrectomy was performed as the standard procedure in eastern countries, mostly based on observational and retrospective studies, in the west the Medical Research Council(MRC), Dutch and Italian RCTs have been conducted to show a survival benefit of D2 over D1 with evidence based medicine. Unfortunately both the MRC and the Dutch trials failed to show a survival benefit after the D2 procedure, mostly due to the significant increase of postoperative morbidity and mortality, which was referred to splenopancreatectomy. Only 15 years after the conclusion of its accrual, the Dutch trial could report a significant decrease of recur-rence after D2 procedure. Recently the long term survival analysis of the Italian RCT could demonstrate a benefit for patients with positive nodes treated with D2 gastrectomy without splenopancreatectomy. As nowadays also in western countries D2 procedure can be done safely with pancreas preserving technique and without preventive splenectomy, it has been suggested in several national guidelines as the recommended procedure for patients with AGC. | Maurizio Degiuli Giovanni De Manzoni Alberto Di Leo Domenico D'Ugo Erica Galasso Daniele Marrelli Roberto Petrioli Karol Polom Franco Roviello Francesco Santullo Mario Morino | 2016 | World Journal of Gastroenterology2016，22，10： | 29 |
| 9 | Prognosis of metastatic splenic hilum lymph node in patients with gastric cancer after total gastrectomy and splenectomy显示文摘AIM:To clarify the significance of combined resection of the spleen to dissect the No.10 lymph node(LN). METHODS:We studied 191 patients who had undergone total gastrectomy with splenectomy,excluding non-curative cases,resection of multiple gastric cancer, and those with remnant stomach cancer.Various clinico-pathological factors were evaluated for any independent contributions to No.10 LN metastasis,usingχ 2 test. Significant factors were extracted for further analysis, carried out using a logistic regression method.Furthermore,lymph node metastasis was evaluated for any independent contribution to No.10 LN metastasis,using the same methods.The cumulative survival rate was calculated using the Kaplan-Meier method.The significance of any difference between the survival curves was determined using the Cox-Mantel test,and any difference was considered significant at the 5%level. RESULTS:From the variables considered to be potentially associated with No.10 LN metastasis,age, depth,invasion of lymph vessel,N factor,the numberof lymph node metastasis,Stage,the number of sites, and location were found to differ significantly between those with metastasis(the Positive Group)and those without(the Negative Group).A logistic regression analysis showed that the localization and Stage were significant parameters for No.10 LN metastasis.There was no case located on the lesser curvature in the Posi-tive Group.The numbers of No.2,No.3,No.4sa,No. 4sb,No.4d,No.7,and No.11 LN metastasis were each found to differ significantly between the Positive Group and the Negative Group.A logistic regression analysis showed that No.4sa,No.4sb,and No.11 LN metastasis were each a significant parameter for No.10 LN metastasis.There was no significant difference in survival curves between the Positive Group and the Negative Group. CONCLUSION:Splenectomy should be performed to dissect No.10 LN for cases which have No.4sa,No. 4sb or No.11 LN metastasis.However,in cases where the tumor is located on the lesser curvature,splenectomy can be omitted. | Keishiro Aoyagi Kikuo Kouhuji Motoshi Miyagi Takuya Imaizumi Junya Kizaki Kazuo Shirouzu | 2010 | World Journal of Hepatology2010，2，2： | 26 |
| 10 | New ultrasound techniques for lymph node evaluation显示文摘Conventional ultrasound(US)is the recommended imaging method for lymph node(LN)diseases with the advantages of high resolution,real time evaluation and relative low costs.Current indications of transcutaneous ultrasound and endoscopic ultrasound include the detection and characterization of lymph nodes and the guidance for LN biopsy.Recent advances in US technology,such as contrast enhanced ultrasound(CEUS),contrast enhanced endoscopic ultrasound(CE-EUS),and real time elastography show potential to improve the accuracy of US for the differential diagnosis of benign and malignant lymph nodes.In addition,CEUS and CE-EUS have been also used for the guidance of fine needle aspiration and assessment of treatment response.Complementary to size criteria,CEUS could also be used to evaluate response of tumor angiogenesis to anti-angiogenic therapies.In this paper we review current literature regarding evaluation of lymphadenopathy by new and innovative US techniques. | Xin-Wu Cui Christian Jenssen Adrian Saftoiu Andre Ignee Christoph F Dietrich | 2013 | World Journal of Gastroenterology2013，19，30： | 25 |
| 11 | Laparoscopic vs open D2 gastrectomy for locally advanced gastric cancer: A meta-analysis显示文摘AIM:To conduct a meta-analysis comparing laparoscopic(LGD2)and open D2 gastrectomies(OGD2)for the treatment of advanced gastric cancer(AGC).METHODS:Randomized controlled trials(RCTs)and non-RCTs comparing LGD2 with OGD2 for AGC treatment,published between 1 January 2000 and 12January 2013,were identified in the Pub Med,Embase,and Cochrane Library databases.Primary endpoints included operative outcomes(operative time,intraoperative blood loss,and conversion rate),postoperative outcomes(postoperative analgesic consumption,time to first ambulation,time to first flatus,time to first oralintake,postoperative hospital stay length,postoperative morbidity,incidence of reoperation,and postoperative mortality),and oncologic outcomes(the number of lymph nodes harvested,tumor recurrence and metastasis,disease-free rates,and overall survival rates).The Cochrane Collaboration tools and the modified Newcastle-Ottawa scale were used to assess the quality and risk of bias of RCTs and non-RCTs in the study.Subgroup analyses were conducted to explore the incidence rate of various postoperative morbidities as well as recurrence and metastasis patterns.A Begg’s test was used to evaluate the publication bias.RESULTS:One RCT and 13 non-RCTs totaling 2596patients were included in the meta-analysis.LGD2 in comparison to OGD2 showed lower intraoperative blood loss[weighted mean difference(WMD)=-137.87 m L,95%CI:-164.41--111.33;P<0.01],lower analgesic consumption(WMD=-1.94,95%CI:-2.50--1.38;P<0.01),shorter times to first ambulation(WMD=-1.03d,95%CI:-1.90--0.16;P<0.05),flatus(WMD=-0.98d,95%CI:-1.30--0.66;P<0.01),and oral intake(WMD=-0.85 d,95%CI:-1.67--0.03;P<0.05),shorter hospitalization(WMD=-3.08 d,95%CI:-4.38--1.78;P<0.01),and lower postoperative morbidity(odds ratio=0.78,95%CI:0.61-0.99;P<0.05).No significant differences were observed between LGD2 and OGD2 for the following criteria:reoperation incidence,postoperative mortality,number of harvested lymph nodes,tumor recurrence/metastasis,or three-or five-year diseasefree and overall survival rates.However,LGD2 had longer operative times(WMD=57.06 min,95%CI:41.87-72.25;P<0.01).CONCLUSION:Although a technically demanding and time-consuming procedure,LGD2 may be safe and effective,and offer some advantages over OGD2 for treatment of locally AGC. | Zhen-Hong Zou Li-Ying Zhao Ting-Yu Mou Yan-Feng Hu Jiang Yu Hao Liu Hao Chen Jia-Ming Wu Sheng-Li An Guo-Xin Li | 2014 | World Journal of Gastroenterology2014，20，44： | 25 |
| 12 | Three-field vs two-field lymph node dissection for esophageal cancer:A meta-analysis显示文摘AIM:To assess the effects of 3-field lymphadenectomy for esophageal carcinoma.METHODS:We conducted a computerized literature search of the Pub Med,Cochrane Controlled Trials Register,and EMBASE databases from their inception to present.Randomized controlled trials(RCTs)or observational epidemiological studies(cohort studies)that compared the survival rates and/or postoperative complications between 2-field lymphadenectomy(2FL)and3-field lymphadenectomy(3FL)for esophageal carcinoma with R0 resection were included.Meta-analysis was conducted using published data on 3FL vs 2FL in esophageal carcinoma patients.End points were 1-,3-,and 5-year overall survival rates and postoperativecomplications,including recurrent nerve palsy,anastomosis leak,pulmonary complications,and chylothorax.Subgroup analysis was performed on the involvement of recurrent laryngeal lymph nodes.RESULTS:Two RCTs and 18 observational studies with over 7000 patients were included.There was a clear benefit for 3FL in the 1-(RR=1.16;95%CI:1.09-1.24;P<0.01),3-(RR=1.44;95%CI:1.19-1.75;P<0.01),and 5-year overall survival rates(RR=1.37;95%CI:1.18-1.59;P<0.01).For postoperative complications,3FL was associated with significantly more recurrent nerve palsy(RR=1.43;95%CI:1.28-1.60;P=0.02)and anastomosis leak(RR=1.26;95%CI:1.05-1.52;P=0.09).In contrast,there was no significant difference for pulmonary complications(RR=0.93;95%CI:0.75-1.16,random-effects model;P=0.27)or chylothorax(RR=0.77;95%CI:0.32-1.85;P=0.69).CONCLUSION:This meta-analysis shows that 3FL improves overall survival rate but has more complications.Because of the high heterogeneity among outcomes,definite conclusions are difficult to draw. | Guo-Wei Ma Dong-Rong Situ Qi-Long Ma Hao Long Lan-Jun Zhang Peng Lin Tie-Hua Rong | 2014 | World Journal of Gastroenterology2014，20，47： | 25 |
| 13 | Ever-changing endoscopic treatment for early gastric cancer:Yesterday-today-tomorrow显示文摘Endoscopic resection has been an optimal treatment for selected patients with early gastric cancer(EGC) based on advances in endoscopic instruments and techniques. As endoscopic submucosal dissection(ESD) has been widely used for treatment of EGC along with expanding ESD indication, concerns have been asked to achieve curative resection for EGC while guaranteeing precise prediction of lymph node metastasis(LNM). Recently, new techniques including ESD or endoscopic full-thickness resection combined with sentinel node navigation enable minimal tumor resection and a laparoscopic lymphadenectomy in cases of EGC with high risk of LNM. This review covers the development and challenges of endoscopic treatment for EGC. Moreover, a new microscopic imaging and endoscopic techniques for precise endoscopic diagnosis and minimally invasive treatment of EGC are introduced. | Mi-Young Kim Jun-Hyung Cho Joo Young Cho | 2014 | World Journal of Gastroenterology2014，20，37： | 21 |
| 14 | Precision surgical approach with lymph-node dissection in early gastric cancer显示文摘The gravest prognostic factor in early gastric cancer is lymph-node metastasis,with an incidence of about 10% overall. About two-thirds of early gastric cancer patients can be diagnosed as node-negative prior to treatment based on clinicpathological data. Thus, the tumor can be resected by endoscopic submucosal dissection. In the remaining third, surgical resection is necessary because of the possibility of nodal metastasis. Nevertheless, almost all patients can be cured by gastrectomy with D1+ lymph-node dissection. Laparoscopic or robotic gastrectomy has become widespread in East Asia because perioperative and oncological safety are similar to open surgery. However, after D1+ gastrectomy,functional symptoms may still result. Physicians must strive to minimize postgastrectomy symptoms and optimize long-term quality of life after this operation.Depending on the location and size of the primary lesion, preservation of the pylorus or cardia should be considered. In addition, the extent of lymph-node dissection can be individualized, and significant gastric-volume preservation can be achieved if sentinel node biopsy is used to distinguish node-negative patients.Though the surgical treatment for early gastric cancer may be less radical than in the past, the operative method itself seems to be still in transition. | Shinichi Kinami Naohiko Nakamura Yasuto Tomita Takashi Miyata Hideto Fujita Nobuhiko Ueda Takeo Kosaka | 2019 | World Journal of Gastroenterology2019，25，14： | 21 |
| 15 | Development and validation of a radiomics nomogram for preoperative prediction of lymph node metastasis in colorectal cancer显示文摘With the support by the National Natural Science Foundation of China,the research team jointly led by Porf.Liu Zaiyi(刘再毅)at Guangdong General Hospital and Prof.Tian Jie(田捷)at the Key Laboratory of Molecular Imaging,Chinese Academy of Sciences,developed a CT-based radiomics prediction model to preoperatively predict the lymph node metastasis in colorectal cancer(CRC),which was published | | 2016 | Science Foundation in China2016，24，4： | 21 |
| 16 | Prognostic and survival analysis of 837 Chinese colorectal cancer patients显示文摘AIM:To develop a prognostic model to predict survival of patients with colorectal cancer (CRC). METHODS:Survival data of 837 CRC patients undergoing surgery between 1996 and 2006 were collected and analyzed by univariate analysis and Cox proportional hazard regression model to reveal the prognostic factors for CRC. All data were recorded using a standard data form and analyzed using SPSS version 18.0 (SPSS, Chicago, IL, United States). Survival curves were calculated by the Kaplan-Meier method. The log rank test was used to assess differences in survival. Univariate hazard ratios and significant and independent predictors of disease-specific survival and were identified by Cox proportional hazard analysis. The stepwise procedure was set to a threshold of 0.05. Statistical significance was defined asP < 0.05. RESULTS:The survival rate was 74% at 3 years and 68% at 5 years. The results of univariate analysis suggested age, preoperative obstruction, serum carcinoembryonic antigen level at diagnosis, status of resection, tumor size, histological grade, pathological type, lymphovascular invasion, invasion of adjacent organs, and tumor node metastasis (TNM) staging were positive prognostic factors (P < 0.05). Lymph node ratio (LNR) was also a strong prognostic factor in stage Ⅲ CRC (P < 0.0001). We divided 341 stage Ⅲ patients into three groups according to LNR values (LNR1, LNR ≤ 0.33, n = 211; LNR2, LNR 0.34-0.66, n = 76; and LNR3, LNR ≥ 0.67, n = 54). Univariate analysis showed a significant statistical difference in 3-year survival among these groups:LNR1, 73%; LNR2, 55%; and LNR3, 42% (P < 0.0001). The multivariate analysis results showed that histological grade, depth of bowel wall invasion, and number of metastatic lymph nodes were the most important prognostic factors for CRC if we did not consider the interaction of the TNM staging system (P < 0.05). When the TNM staging was taken into account, histological grade lost its statistical significance, while the specific TNM staging system showed a statistically significant difference (P < 0.0001). CONCLUSION:The overall survival of CRC patients has improved between 1996 and 2006. LNR is a powerful factor for estimating the survival of stage Ⅲ CRC patients. | Ying Yuan Mo-Dan Li Han-Guang Hu Cai-Xia Dong Jia-Qi Chen Xiao-Fen Li Jing-Jing Li Hong Shen | 2013 | World Journal of Gastroenterology2013，19，17： | 20 |
| 17 | Value of contrast-enhanced ultrasound combined with elastography in evaluating cervical lymph node metastasis in papillary thyroid carcinoma显示文摘BACKGROUND Cervical lymph node metastasis in papillary thyroid carcinoma(PTC) affects the treatment and prognosis of patients. Ultrasound is a common imaging method for detecting cervical lymph nodes in PTC patients; however, it is not accurate in determining lymph node metastasis.AIM To evaluate the value of contrast-enhanced ultrasound combined with elastography in evaluating cervical lymph node metastasis in PTC.METHODS A total of 94 patients with PTC were recruited. According to pathological results,lymph nodes were divided into two groups: metastatic group(n = 50) and reactive group(n = 63). The routine ultrasound findings, contrast-enhanced ultrasound and elastography data were recorded and compared. Logistic regression was used to generate predictive probability distributions for the diagnosis of lymph node metastasis with different indicators. Receiver operating characteristic curve analysis was used to test the efficacy of contrast-enhanced ultrasound combined with elastography based on routine ultrasound in evaluating PTC cervical lymph node metastasis.RESULTS The ratio of long diameter/short diameter(L/S) ≤ 2, irregular marginal morphology, missing lymphatic portal, peripheral or mixed blood flow distribution, peak intensity(PI), non-uniform contrast distribution and elasticity score in the metastatic group were significantly higher than those in the reactive group(P < 0.05). L/S ratio, missing lymphatic portal, PI and elasticity score had a significant influence on the occurrence of PTC cervical lymph node metastasis(P< 0.05). Furthermore, the area under the curve(AUC) for lymph node metastasis diagnosed using the combination of PI ratio, elasticity score, missing lymphatic portal and LS was 0.936, which was significantly higher than the AUC for PI ratio alone. The difference was statistically significant(P < 0.05). The fitting equation for the combined diagnosis was logit(P) =-12.341 + 1.482 × L/S ratio + 3.529 ×missing lymphatic portal + 0.392 × PI + 3.288 × elasticity score.CONCLUSION Based on the gray-scale ultrasound, the combination of contrast-enhanced ultrasound and elastography can accurately assess PTC cervical lymph node metastasis. | Wei Jiang Hong-Yan Wei Hai-Yan Zhang Qiu-Luan Zhuo | 2019 | World Journal of Clinical Cases2019，7，1： | 19 |
| 18 | Computed tomography and magnetic resonance imaging evaluation of lymph node metastasis in early colorectal cancer显示文摘AIM: To assess the role of computed tomography(CT) and magnetic resonance imaging(MRI) and establish imaging criteria of lymph node metastasis in early colorectal cancer.METHODS: One hundred and sixty patients with early colorectal cancer were evaluated for tumor location, clinical history of polypectomy, depth of tumor invasion, and lymph node metastasis. Two radiologists assessed preoperative CT and/or MRI for the primary tumor site detectability, the presence or absence of regional lymph node, and the size of the largest lymph node. Demographic, imaging, and pathologic findings were compared between the two groups of patients based on pathologic lymph node metastasis and optimal size criterion was obtained.RESULTS: The locations of tumor were ascending, transverse, descending, sigmoid colon, and rectum. One hundred and sixty early colorectal cancers were classified into 3 groups based on the pathological depth of tumor invasion; mucosa, submucosa, and depth unavailable. A total of 20(12.5%) cancers with submucosal invasion showed lymph node metastasis. Lymph nodes were detected on CT or MRI in 53 patients. The detection rate and size of lymph nodes were significantly higher(P = 0.000, P = 0.044, respectively) in patients with pathologic nodal metastasis than in patients without nodal metastasis. Receiver operating curve analysis showed that a cut-off value of 4.1 mm is optimal with a sensitivity of 78.6% and specificity of 75%.CONCLUSION: The short diameter size criterion of≥ 4.1 mm for metastatic lymph nodes was optimal for nodal staging in early colorectal cancer. | Joonsung Choi Soon Nam Oh Dong-Myung Yeo Won Kyung Kang Chan-Kwon Jung Sang Woo Kim Michael Yong Park | 2015 | World Journal of Gastroenterology2015，21，2： | 16 |
| 19 | Comparison of DWI and PET/CT in evaluation of lymph node metastasis in uterine cancer显示文摘AIM: To investigate diffusion-weighted imaging (DWI) and positron emission tomography and computed tomography (PET/CT) with Ⅳ contrast for the preoperative evaluation of pelvic lymph node (LN) metastasis in uterine cancer. METHODS: Twenty-five patients with endometrial or cervical cancer who underwent both DWI and PET/CT before pelvic lymphadenectomy were included in this study. For area specific analysis, LNs were divided into eight regions: both common iliac, external iliac, internal iliac areas, and obturator areas. The classification for malignancy on DWI was a focally abnormal signal intensity in a location that corresponded to the LN chains on the T1WI and T2WI. The criterion for malignancy on PET/CT images was increased tracer uptake by the LN.RESULTS: A total of 36 pathologically positive LN areas were found in 9 patients. With DWI, the sensitivity, specificity, positive predictive value, negative predictive value and accuracy for detecting metastatic LNs on an LN area-by-area analysis were 83.3%, 51.2%, 27.3%, 93.3% and 57.0%, respectively, while the corresponding values for PET/CT were 38.9%, 96.3%, 70.0%, 87.8% and 86.0%. Differences in sensitivity, specificity and accuracy were significant (P < 0.0005). CONCLUSION: DWI showed higher sensitivity and lower specificity than PET/CT. Neither DWI nor PET/CT were sufficiently accurate to replace lymphadenectomy. | Kazuhiro Kitajima Erena Yamasaki Yasushi Kaji Koji Murakami Kazuro Sugimura | 2012 | World Journal of Radiology2012，4，5： | 16 |
| 20 | Predictive Value of BRAF^V600E Mutation for Lymph Node Metastasis in Papillary Thyroid Cancer:A Meta-analysis显示文摘BRAF^V600E mutation has been thought to be a valuable molecular marker that may predict a worse prognosis for papillary thyroid cancer (PTC).But whether BRAF^V600E mutation is associated with lymph node metastasis (LNM)remains controversial. Different surgical strategies may bring a bias in demonsstrating the association between them.In order to delineate a risk stratification to guide a tailored initial approach to tumors that express BRAF^V600E mutation,we performed this meta-analysis by using the articles in which total or near-total thyroidectomy plus bilateral central lymph node dissection was routinely performed to avoid the bias from the surgical strategy.We searched the Medline,Embase and CNKI database for eligible studies from January 2003 to May 2018.Meta-analysis was performed using the STATA 12.0 software.Odds ratios (ORs)and 95% confidence intervals (CIs)were calculated under fixed-effects or random-effects models.Fifteen clinical studies were included with a total of 4909 PTC patients. Our meta-analysis results reported that BRAF^V600E mutation was associated with LNM (OR=1.34;95% CI:1.09-1.65;P=0.005),as well as central LNM (OR=1.59;95% CI: 1.35-1.88;P<0.00001).Moreover,in patients with papillary thyroid microcarcinoma, we also confirmed the predictive value of BRAF^V600E mutation for LNM (OR=3.49;95% CI:2.02-6.02;P<0.00001).This meta-analysis demonstrates that BRAF^V600E mutation is closely related to LNM in PTC patients.The results suggest that BRAF^V600E mutation can be considered as a risk factor for LNM in PTC.Moreover,combining BRAF^V600E mutation with other risk factors to determine the initial surgical treatment may bring benefits for PTC patients. | Jing-yong SONG Shi-ran SUN Fang DONG Tao HUANG Bin WU Jing ZHOU | 2018 | Current Medical Science2018，38，5： | 16 |
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