目的:探讨MRI及多层螺旋CT多平面重建显示胆囊癌对邻近结构侵犯的价值。方法:前瞻性分析18例(CT及MRI各9例)胆囊癌对邻近结构侵犯情况。CT及MRI均包括平扫及增强扫描,CT扫描病例除横断断位外,行冠状位、矢状位重建;MRI病例行横断位、冠状位及矢状位扫描。结果:胆囊癌对邻近结构侵犯的敏感度、特异度、准确度如下:①横断位和矢状位显示邻近肝实质侵犯分别为81.2％、100.0％、83.3％,冠状位分别为87.5％、100.0％、88.9％;②横断位显示胃窦侵犯分别为75.0％、90.0％、83.3％,冠状位及矢状位均分别为75.0％、80.0％、77.7％;③横断位显示十二指肠侵犯分别为70.0％、75.0％、72.2％,冠状位分别为80.0％、75.0％、77.7％,矢状位分别为70.0％、75.0％、72.5％;④横断位和冠状位显示结肠肝曲侵犯均分别为25.0％、85.7％、72.2％,矢状位分别为50.0％、71.4％、66.6％;⑤横断位和冠状位显示胆管侵犯均分别为75.0％、100.0％、83.3％,矢状位分别为66.6％、100.0％、77.7％;⑥横断位、冠状位及矢状位显示邻近腹膜侵犯及淋巴结转移准确度均为66.6％;显示网膜侵犯准确度均为50.0％。结论:横断位、冠状位及矢状位显示胆囊癌对邻近肝实质、胃、十二指肠、胆管侵犯的敏感度、特异度、准确度较高;而显示对结肠肝曲、腹膜、网膜侵犯的准确度较低。
【Abstract】Objective To evaluate the prognostic value of plasma D-dimer level in cancer thrombosis and vascular invasion assessment and to analyze the correlation between plasma D-dimer level and the Pittsburgh modified TNM staging in patients with hepatocellular carcinoma for orthotopic liver transplantation. MethodsThe plasma D-dimer level was quantitated using Golden method in 120 patients with hepatocellular carcinoma for orthotopic liver transplantation. Cancer thrombosis in trunk vein and microvascular invasion was diagnosed by pathology. The relationship between plasma D-dimer level in different Child-pugh’s classification patients and vascular invasion as well as the Pittsburgh modified TNM staging was analyzed with χ2 test, factorial analysis of variance and q test by microsoft SPSS 9.0.ResultsIn ChildPugh’s A, B and C patients, the difference of plasma D-dimer level between patients with trunk vein cancer thrombosis and patients without vascular invasion was significant (P＜0.05). The differences of plasma D-dimer level between patients with microvascular invasion and patients without vascular invasion were significant (P＜0.01) in Child-Pugh’s B and C patients but was insignificant in Child-Pugh’s A patients (Pgt;0.05). The differences of plasma D-dimer level between patients with the Pittsburgh modified TNM Ⅰand Ⅱ tumor and patients with TNM Ⅲ tumor, and between patients with the Pittsburgh modified TNM Ⅰand Ⅱ tumor and patients with TNM Ⅳ tumor were significant (P＜0.05), but the differences of plasma D-dimer level between patients with the Pittsburgh modified TNM Ⅲ tumor and patients with TNM Ⅳ tumor were insignificant (Pgt;0.05).ConclusionPlasma D-dimer level, which increasing as upgrade of the Pittsburgh TNM staging, is useful in the vascular invasion and cancer thrombosis assessment in patients with hepatocellular carcinoma for liver transplantation, and the correlation was more significant as progression of vascular invasion and upgrade of Child-pugh’s classification.
ObjectiveTo find out the risk factors affecting the prognoses and microvascular invasion (MVI) of patients with China Liver Cancer Staging-stageⅠ a (CNLC Ⅰ a) hepatocellular carcinoma (HCC). MethodsBased on the established inclusion and exclusion criteria, the clinicopathologic information and follow-up data of patients with CNLC Ⅰ a HCC were retrospectively collected, who underwent radical resection in the West China Hospital of Sichuan University from Jan. 2012 to Dec. 2016. The Cox proportional hazards regression was utilized to analyze the risk factors affecting the prognosis of patients with CNLC Ⅰ a HCC, and the non-conditional logistic regression was utilized to analyze the preoperative clinical indicators associating with MVI. ResultsA total of 300 patients with CNLC Ⅰ a HCC were included in this study, among which 51 (17.0%) cases accompanied with MVI. The follow-up period ranged from 2 to 104 months (median 39 months), with a recurrence time ranging from 2 to 104 months (median 52 months), and an overall survival time ranging from 3 to 104 months (median 98 months). During the follow-up period, postoperative recurrence occurred in 145 (48.3%) cases. The Cox proportional hazards regression analysis revealed that: tumor diameter >3 cm, presences of MVI and satellite nodules increased the risk of shortened recurrence time for the patients with CNLC Ⅰ a HCC (P<0.05); Factors including gamma-glutamyltranspeptidase level >60 U/L, tumor low differentiation, presences of MVI and satellite nodules were associated with shortened overall survival time for the patients with CNLC Ⅰ a HCC (P<0.05). The preoperative alpha-fetoprotein level ≥400 μg/L and tumor diameter >3 cm increased the risk of presence of MVI for the patients with CNLC Ⅰ a HCC [χ2=3.059, OR(95%CI)=2.357(1.047, 5.306), P=0.038; χ2=3.002, OR(95%CI)=2.301(1.026, 5.162), P=0.043]. ConclusionThe results of this study suggest that adopting corresponding strategies to address the risk factors affecting prognosis of patients with CNLC Ⅰ a HCC and the risk factors associated with MVI can have a significant clinical impact on improving surgical treatment outcomes for these patients.
目的：探讨胆囊癌肝侵犯的CT诊断及临床价值。方法：回顾性分析经手术、病理证实的17例胆囊癌肝侵犯CT资料。结果：肿块型11例，腔内型2例，厚壁型4例。侵犯肝左内叶5例，肝右叶前段3例，同时侵犯肝左内叶及右叶前段9例。5例侵犯深度＜2 cm，12例侵犯深度＞2 cm。CT表现为胆囊窝脂肪间隙消失，邻近胆囊窝的肝脏组织内出现不规则形低密度影，边界模糊，胆囊癌肿与肝脏组织分界不清，增强后肝内病灶不规则强化。结论：CT对胆囊癌肝侵犯的诊断及临床分期、治疗方案的选择具有重要价值。
Objective To study the feasibility of radical resection of gallbladder cancer with extensive invasion. Methods A patient of the gallbladder cancer with invasion of liver, gastric antrum, duodenum, caput pancreatis and colon transversum, was received radical resection (including pancreatoduodenectomy, hepatectomy and colectomy). Results Seven months later, the value of CEA and Hb were normal and cancer recurrence was not observed. Conclusion The radical resection of gallbladder cancer with extensive invasion, can improve survival quality and extent survival time.
Objective To summarize the research progress of MRI in the assessment of rectal cancer before surgery. Methods Literatures about the recent studies on the research progress of MRI in the assessment of rectal cancer before surgery were reviewed according to the results searched from Pubmed, CNKI, and WanFang database. Results Preoperative staging, circumferential resection margin, and extramural vascular invasion were closely related to the prognosis of rectal cancer patients, MRI could provide a good assessment of preoperative staging, circumferential resection margin, and extramural vascular invasion for rectal cancer patients, but it still had some deficiencies which needed further studies. Conclusion Application of MRI in the assessment of preoperative staging, circumferential resection margin, and extramural vascular invasion before surgery, is conducive to the development of the most appropriate treatment options for patients with rectal cancer.
ObjectiveTo assess value of preoperative clinical data and enhanced CT imaging features in predic-tion of microvascular invasion (MVI) and early recurrence (recurrence in one year) after curative resection for hepatoce-llular carcinoma (HCC). MethodsA retrospective analysis was conducted for 150 patients with HCC who underwent curative tumor resection in West China Hospital of Sichuan University from April 2014 to May 2015. The roles of preoperative CT characteristics and clinical data on MVI and early recurrence after curative tumor resection were evaluated by univariate and multivariate analyses. Resultscompared with HCC with no MVI and no early recurrence after curative resection, univariate analysis results showed that HCC with MVI and early recurrence had larger tumor size (P=0.002, P=0.005), a higher proportion of non-smooth tumor margin (P<0.001, P<0.001), and tumor multifocality (P=0.005, P=0.038), HCC with MVI had a higher proportion of incomplete tumor capsule (P=0.032), HCC with early recurrence had a higher proportion of incomplete and absence tumor capsules (P=0.038) and a faster washout on portal venous phase-the percentage attenuation ratio on the portal venous phase (P=0.049) and relative washout ratio on the portal venous phase (P=0.020) were higher. A multivariate logistic regression analysis results showed that non-smooth tumor margin (OR=7.075, P<0.001; OR=4.125, P<0.001) and tumor multifocality (OR=3.290, P=0.008; OR=2.354, P=0.047) were the independent predictors for MVI and early recurrence after curative tumor resection, HCC with early recurrence also had a faster washout on the portal venous phase (OR=1.023, P=0.017). ConclusionNon-smooth tumor margin and tumor multifocality are independent risk factors for MVI and early recurrence after curative tumor resection, and HCC with early recurrence has a faster washout on portal venous phase. Preoperative enhanced CT imaging could predict MVI and early recurrence after curative tumor resection and CT imaging findings are helpful to choose reasonable treatment and predict prognosis.
ObjectiveTo explore the location and characteristics of postoperative recurrence of papillary thyroid carcinoma. MethodsThe clinical data of 96 patients who underwent reoperation for papillary thyroid cancer at the Affiliated Cancer Hospital of Zhengzhou University from January 2017 to March 2024 were retrospectively analyzed. ResultsOut of 96 patients, 3 had thyroid recurrence, 89 had lymph node recurrence, and 4 had thyroid and lymph node recurrence. There were 69 cases of single recurrence and 27 cases of multiple recurrence. Ten cases underwent lobectomy and lateral area cleaning, 8 cases underwent central area cleaning, 33 cases underwent lateral area cleaning, and 45 cases underwent central area+lateral area cleaning. Postoperative pathological examination revealed that there was lymph node metastasis in 93 cases (16 cases in the central region, 44 cases in the lateral region, and 33 cases in both the central and lateral regions), with 3 cases remaining non metastatic; 58 cases had extracapsular invasion of lymph nodes. Compared with patients with multiple relapses, patients with single recurrence had younger age (t=–3.385, P=0.001), lower incidence of gross extracapsular invasion of lymph nodes during surgery (χ2=6.970, P=0.008), higher number of metastatic lymph nodes (t=4.034, P=0.001), and higher rate of lymph node metastasis in zones Ⅱ, Ⅲ, and Ⅳ (χ2=8.142, P=0.004; χ2=6.357, P=0.012; χ2=12.547, P<0.001). ConclusionsPostoperative recurrence of papillary thyroid cancer is mainly due to lymph node recurrence. The advanced age and the visible lymph node extracapsular invasion may increased risk of postoperative recurrence of papillary thyroid cancer. Lymph node metastasis in the central region is a possible cause of multiple relapses and surgeries.
Objective To probe CT grading criteria of vascular invasion in pancreatic cancer. Methods Retrieved articles in CNKI and PubMed about value of CT in preoperative assessment of vascular invasion in pancreatic cancer last ten years. Results Multislice helical CT is considered the best imaging method to assess the invaded peripancreatic vessels in pancreatic cancer. There are different CT criteria of vascular invasion in pancreatic cancer based on extension of hypodense tumor and its relation to blood vessels, on the degree of circumferential contiguity of tumor to vessel, on the degree of lumen stenosis, and on the degree of contiguity between tumor and vessels combined vascular caliber. Conclusion CT grading criteria are not uniform, each one has defects.
Objective To summarize the research progress of magnetic resonance imaging (MRI) in evaluating microvascular invasion (MVI) of hepatocellular carcinoma (HCC) in order to provide information and evidence for therapy of HCC. Methods Papers published from May 1950 to May 2017, were retrieved in PubMed, OVID, CNKI database using the keywords on hepatocellular carcinoma, microvascular invasion, and magnetic resonance imaging. Sixty-seven papers were retrieved in English literatures and 13 in Chinese literatures. Criteria of paper adoption: ① the imaging method was MRI; ② the assessment content was MVI of HCC; ③ the golden standard was postoperative pathologic diagnosis. fifty-four papers were finally analyzed and reviewed. Results Currently there were various ways to evaluating the MVI of HCC using MRI, including morphology, texture analysis, diffusion-weighted imaging, dynamic-enhanced MRI, fat assessment, hepatocellular function and comprehensive evaluation. Conclusions Various methods perform differently in evaluating MVI. The use of multiparametric MRI techniques offers the potential for comprehensive assessment of MVI of HCC.