导读:本文包含了多层计算机体层摄影术论文开题报告文献综述及选题提纲参考文献，主要关键词:体层摄影术,螺旋计算机,成像,叁维,癌,肝细胞
多层计算机体层摄影术论文文献综述
关连越,杨永生,刘宏宇,梁娜,张学文[1]（2013）在《多层螺旋计算机体层摄影术叁维重建在肝细胞肝癌患者治疗中的应用价值》一文中研究指出目的探讨多层螺旋计算机体层摄影术(MSCT)叁维重建在肝癌患者术前评估及术后预测肝功能代偿情况的应用价值。方法本前瞻性研究对象为2010年2月至2011年2月在吉林大学中日联谊医院肝胆胰外科行根治性肝切除术的38例肝癌患者。男31例,女7例,年龄33~83岁,中位年龄54岁。患者均签署知情同意书,符合医学伦理学规定。术前应用多层面重组(MPR)、最大密度投影(MIP)和容积显示(VR)3种方式进行MSCT叁维重建。采用χ2检验和Fisher确切概率法比较3种重建方式的血管显示率,采用秩和检验比较肝预测体积和实际体积差异,采用方差分析和q检验比较残肝分数与术后肝功能Child-Pugh分级的关系。结果本组38例肝MSCT叁维重建图像均可清晰显示腹主动脉、腹腔干、肝总动脉、肝固有动脉、门静脉系统及其属支,3种重建方式对肿瘤和血管显示各具特点。MSCT叁维重建所能显示肝动脉和门静脉的最小分支均为Ⅵ级。MPR、MIP、VR3种重建方式对肝动脉Ⅲ级的显示率分别为8%(3/38)、100%(38/38)、100%(38/38),MIP和VR对肝动脉Ⅲ级的显示率明显优于MPR(P<0.001);MIP与VR对肝动脉Ⅵ级显示率分别为16%(6/38)、3%(1/38),MIP明显优于VR(P=0.047)。MPR、MIP、VR 3种重建方式对门静脉Ⅲ级显示率分别为5%(2/38)、100%(38/38)、100%(38/38),MIP和VR对门静脉Ⅲ级显示率明显优于MPR(P<0.001)。术前MSCT测量的肿瘤预测体积中位数116(12~1 002)cm3与肿瘤实际体积125(8~987)cm3比较差异无统计学意义(Z=-0.099,P=0.921);预测切肝体积215(36~1 294)cm3与实际切肝体积212(40~1 234)cm3,比较差异无统计学意义(Z=-0.31,P=0.975)。肝功能Child-Pugh分级A级残肝分数(83.1±6.3)%、B级残肝分数(61.7±5.4)%、C级残肝分数(38.9±2.3)%,3组总体比较差异有统计学意义(F=97.425,P<0.001),两两比较差异均有统计学意义(均为P<0.001)。结论术前MSCT叁维重建可以清晰显示肝脏病变和血管,能准确测量肝脏肿瘤体积和预切除肝脏体积,对术前评估及预测术后肝功能代偿有一定价值。MPR叁维重建图像对手术的宏观指导意义较大,而应用MIP和VR的叁维重建图像则是制定手术计划的重要影像学依据。(本文来源于《中华肝脏外科手术学电子杂志》期刊2013年01期）
Mollet,N,R,,Cademartiri,F[2]（2005）在《采用16排多层计算机体层摄影冠状动脉造影术可提高诊断的精确性》一文中研究指出We sought to compare the diagnostic value of multi-slice computed tomography(MSCT)coronary angiography(CA)to detect significant stenoses(< 50%lumen diameter reduction)-with that of invasive CA. The latest 16-row MSCT scanner has a faster rotation time(375 ms)and permits scanning with a higher X-ray tube current(500 to 600 mA)during MSCT CA when compared with previous scanners. We studied 51 patients(37 men, mean age 58.9±10.0 years)with stable angina or atypical chest pain. Patients with pre-scan heart rates < 70 beats/min received oral beta-blockade. The heart was scanned after intravenous injection of 100 ml contrast(iodine content, 400 mg/ml). Mean scan time was 18.9±1.0 s. The MSCT scans were analyzed by two observers unaware of the results of invasive angiography, and all available coronary branches< 2 mm were included. Invasive CA demonstrated normal arteries in 16%(8 of 51), non-significant disease in 21%(11 of 51), single-vessel disease in 37%(19 of 51), and multivessel disease in 26%(13 of 51)of patients. There were 64 significant lesions. Sensitivity, specificity, and positive and negative predictive values for detection of significant lesions on a segment-based analysis were 95%(61 of 64, 95%confidence interval [CI] 86 to 99), 98%(537 of 546, 95%CI 96 to 99), 87%(61 of 70, 95%CI 76 to 98), and 99%(537 of 540, 95%CI 98 to 99), respectively. All patients with angiographically normal coronary arteries or significant lesions were correctly identified. Three of 11 patients with < 50%lesions were incorrectly classified as having single-vessel disease. The 16-row MSCT CA reliably detects significant coronary stenoses in patients with atypical chest pain or stable angina pectoris.(本文来源于《世界核心医学期刊文摘(心脏病学分册)》期刊2005年06期）
多层计算机体层摄影术论文开题报告
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We sought to compare the diagnostic value of multi-slice computed tomography(MSCT)coronary angiography(CA)to detect significant stenoses(< 50%lumen diameter reduction)-with that of invasive CA. The latest 16-row MSCT scanner has a faster rotation time(375 ms)and permits scanning with a higher X-ray tube current(500 to 600 mA)during MSCT CA when compared with previous scanners. We studied 51 patients(37 men, mean age 58.9±10.0 years)with stable angina or atypical chest pain. Patients with pre-scan heart rates < 70 beats/min received oral beta-blockade. The heart was scanned after intravenous injection of 100 ml contrast(iodine content, 400 mg/ml). Mean scan time was 18.9±1.0 s. The MSCT scans were analyzed by two observers unaware of the results of invasive angiography, and all available coronary branches< 2 mm were included. Invasive CA demonstrated normal arteries in 16%(8 of 51), non-significant disease in 21%(11 of 51), single-vessel disease in 37%(19 of 51), and multivessel disease in 26%(13 of 51)of patients. There were 64 significant lesions. Sensitivity, specificity, and positive and negative predictive values for detection of significant lesions on a segment-based analysis were 95%(61 of 64, 95%confidence interval [CI] 86 to 99), 98%(537 of 546, 95%CI 96 to 99), 87%(61 of 70, 95%CI 76 to 98), and 99%(537 of 540, 95%CI 98 to 99), respectively. All patients with angiographically normal coronary arteries or significant lesions were correctly identified. Three of 11 patients with < 50%lesions were incorrectly classified as having single-vessel disease. The 16-row MSCT CA reliably detects significant coronary stenoses in patients with atypical chest pain or stable angina pectoris.
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多层计算机体层摄影术论文参考文献
[1].关连越,杨永生,刘宏宇,梁娜,张学文.多层螺旋计算机体层摄影术叁维重建在肝细胞肝癌患者治疗中的应用价值[J].中华肝脏外科手术学电子杂志.2013
[2].Mollet,N,R,,Cademartiri,F.采用16排多层计算机体层摄影冠状动脉造影术可提高诊断的精确性[J].世界核心医学期刊文摘(心脏病学分册).2005