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Multislice computed tomography angiography in the diagnosis of coronary artery disease 被引量:7
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作者 Zhong-Hua Sun Yan Cao Hua-Feng Li 《Journal of Geriatric Cardiology》 SCIE CAS CSCD 2011年第2期104-113,共10页
Multislice CT angiography represents one of the most exciting technological revolutions in cardiac imaging and it has been increasingly used in the diagnosis of coronary artery disease. Rapid improvements in multislic... Multislice CT angiography represents one of the most exciting technological revolutions in cardiac imaging and it has been increasingly used in the diagnosis of coronary artery disease. Rapid improvements in multislice CT scanners over the last decade have allowed this technique to become a potentially effective alternative to invasive coronary angiography in patients with suspected coronary artery disease. High diagnostic value has been achieved with multislice CT angiography with use of 64- and more slice CT scanners. In addition, multislice CT angiography shows accurate detection and analysis of coronary calcium, characterization of coronary plaques, as well as prediction of the disease progression and major cardiac events. Thus, patients can benefit from multislice CT angiography that provides a rapid and accurate diagnosis while avoiding unnecessary invasive coronary angiography procedures. The aim of this article is present an overview of the clinical applications of multislice CT angiography in coronary artery disease with a focus on the diagnostic accuracy of coronary artery disease; prognostic value of coronary artery disease with regard to the prediction of major cardiac events; detection and quantification of coronary calcium and characterization of coronary plaques. Limitations of multislice CT angiography in coronary artery disease are also briefly discussed, and future directions are highlighted. 展开更多
关键词 coronary artery disease PLAQUE DIAGNOSIS multislice computed tomography ANGIOGRAPHY
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SPECTRUM OF FUNCTIONING ISLET CELL TUMOR ON MULTISLICE COMPUTED TOMOGRAPHY:EXPERIENCE ON 70 PATIENTS 被引量:2
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作者 Hua-dan Xue Wei Liu +7 位作者 Hao Sun Reto Merges Xuan Wang Xiao-na Zhang Yun Wang Wen-min Zhao Jiu-hong Chen Zheng-yu Jin 《Chinese Medical Sciences Journal》 CAS CSCD 2008年第1期1-9,共9页
Objective To review experience in preoperative detection of islet cell tumors using multislice computed tomography (MSCT) and summarize various imaging features of functioning islet cell tumors on enhanced MSCT. Me... Objective To review experience in preoperative detection of islet cell tumors using multislice computed tomography (MSCT) and summarize various imaging features of functioning islet cell tumors on enhanced MSCT. Methods Seventy patients with clinical or pathological diagnosis of functioning pancreatic islet cell tumor between October 2003 and February 2007 were included in this retrospective study. Seventy-four enhanced MSCT scans in these patients were identified. All MSCT scans were interpreted by two experienced radiologists by consensus interpretation. Surgery and pathology reports were used to confirm the diagnosis, localization, and size of tumors. Results Totally, 73 functioning islet cell tumors including 65 benign insulinomas, 2 benign glucagonomas, 3 malignant insulinomas, and 3 malignant glucagonomas were pathologically diagnosed. Tumors in only two cases were not found by MSCT. In 67 benign lesions, 32 showed typical enhancement style, 21 showed prolonged enhancement in portal venous phase, 4 showed delayed enhancement, 4 had iso-dense enhancement with normal pancreatic parenchyma, 2 had no enhancement at all in arterial phase and portal venous phase, and 4 had inhomogeneous enhancement with necrosis or cyst-formation. Patchy or spotty calcifications were found in 3 of the 67 tumors. In 6 malignant islet cell tumors, vessel invasion (2/6) and bowel invasion (1/6) were seen. Different enhancement patterns were shown. All hepatic metastases showed hyper-enhancement during their arterial phase. Conelttsions Pancreatic islet cell tumor may display a wide spectrum of presentations in MSCT. Tumors with unusual appearances often present as diagnostic challenges. Non-contrast and post-contrast multiphase scans are recommended for the localization of functioning islet cell tumors. 展开更多
关键词 islet cell tumor PANCREAS multislice computed tomography
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Coronary computed tomography angiography in coronary artery disease 被引量:6
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作者 Kwan-Hoong Ng 《World Journal of Cardiology》 CAS 2011年第9期303-310,共8页
AIM: To investigate the research directions of coronary computed tomography (CT) angiography in the diagnosis of coronary artery disease (CAD) based on a systematic review of the literature.METHODS: A search of articl... AIM: To investigate the research directions of coronary computed tomography (CT) angiography in the diagnosis of coronary artery disease (CAD) based on a systematic review of the literature.METHODS: A search of articles on coronary CT angiography in the diagnosis of CAD was performed during a 6-year-period between 2005 and 2010 from f ive main radiology journals namely, Radiology, American Journal of Roentgenology, European Radiology, European Journal of Radiology and British Journal of Radiology. Analysis of the references was focused on the research directions of coronary CT angiography with regard to the type of studies in terms of diagnostic value, application of dose-reduction strategies and resultant effective radiation doses with use of these techniques.RESULTS: One hundred and forty two studies were identified which met the selection criteria and were included in the analysis. 64-slice CT (single source anddual-source CT) dominated 78% of the coronary CT angiography studies. Prior to 2007, research was focused on the diagnostic value of coronary CT angiography, but since 2008 more attention has been paid to radiation dose reduction. Radiation dose was reported in 64 studies, representing 45% of total studies published in the f ive radiology journals. Various dose-saving strategies have been implemented and prospective electrocardiography-triggering and high pitch techniques were found to be the most effective approaches for radiation dose reduction, with the corresponding mean effective dose being 3.5 ± 1.9 mSv and 1.7 ± 0.6 mSv, respectively.CONCLUSION: This review shows that the current research in coronary CT angiography has shifted from the previous focus on diagnostic accuracy in CAD to more emphasis on radiation dose reduction. 展开更多
关键词 CORONARY ARTERY disease Diagnostic value multislice computed tomography Radiation DOSE Risk
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视网膜母细胞瘤MSCT MRI表现及其诊断价值分析
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作者 蒋士杰 王利 +2 位作者 张晖 吕朋 连鹏 《河北医学》 CAS 2024年第8期1354-1357,共4页
目的:对比多层螺旋电子计算机断层扫描(MSCT)、磁共振成像(MRI)检测方法在视网膜母细胞瘤(Rb)检测中的诊断价值。方法:选择2019年1月到2023年6月期间于我院治疗的125例疑似Rb患者,采用MSCT、MRI进行检测,通过病理检测结果为诊断金标准,... 目的:对比多层螺旋电子计算机断层扫描(MSCT)、磁共振成像(MRI)检测方法在视网膜母细胞瘤(Rb)检测中的诊断价值。方法:选择2019年1月到2023年6月期间于我院治疗的125例疑似Rb患者,采用MSCT、MRI进行检测,通过病理检测结果为诊断金标准,分析不同检测方法对Rb检测的灵敏度、特异度、准确性,以及与病理检测结果的一致性。结果:患者经MRI、MSCT、病理检测的Rb阳性率分别为44.00%(55/125)、52.80%(66/125)、45.60%(57/125),差异无统计学意义(P>0.05);MRI检测结果与病理检测结果比对的Kappa值为0.644,低于MSCT检测的Kappa值0.729;MRI检测的灵敏度为78.94%,低于MSCT检测的灵敏度92.98%,差异有统计学意义(P<0.05);MRI检测的特异度(85.29%)高于MSCT检测(80.88%),准确率(82.40%)低于MSCT检测(86.40%),差异无统计学意义(P>0.05);MSCT视野下Rb患者眼球壁有不规则增厚,玻璃体腔内见不规则片状软组织密度影,病灶内见斑片状钙化;MRI视野下Rb患者眼环不均匀增厚,玻璃体腔内可见不规则团片状异常信号影,T1WI呈等信号,T2WI呈稍高、低混杂信号影,增强扫描见病灶明显不均匀强化。结论:与MRI检测相比,MSCT检测与病理检测结果的一致性高,并具有更高的灵敏度,具有较高的诊断价值。 展开更多
关键词 视网膜母细胞瘤 多层螺旋电子计算机断层扫描 磁共振成像
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Computed Tomography Diagnosis of Acute Appendicitis—Pictorial Essay
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作者 Aarthi Govindarajan Bhawna Dev +1 位作者 Roy Santosham Joseph Santhosh 《Surgical Science》 2011年第3期109-116,共8页
Acute appendicitis is a common surgical emergency with varied clinical presentations. Early diagnosis is absolutely necessary to minimize morbidity whereas delayed or missed diagnosis can cause adverse consequences. C... Acute appendicitis is a common surgical emergency with varied clinical presentations. Early diagnosis is absolutely necessary to minimize morbidity whereas delayed or missed diagnosis can cause adverse consequences. Computed tomography is a highly accurate imaging technique for diagnosing appendicitis. Hence it plays a valuable role in selected patients with suspected appendicitis;[1]. In this essay, we review the normal Computed tomography anatomy of the appendix and the right lower quadrant and illustrate the Computed tomography signs of appendicitis and important differential diagnostic entities. The Computed tomography appearance of complications of acute appendicitis is also presented, as are issues concerning clinical presentation and duration of the symptoms. Computed tomography signs can be varied and overlooked as they say what is easy to see is also easy to miss. 展开更多
关键词 Acute APPENDIX multislice computed tomography
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术前多模态MRI成像与MSCT评价胃癌T分期价值比较 被引量:3
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作者 王华锋 袁仲强 赵艳争 《中国CT和MRI杂志》 2023年第3期142-144,共3页
目的研究术前多模态MRI成像与MSCT图像评价胃癌T分期价值。方法2017年1月至2019年12月于医院接受MRI成像与MSCT检查的胃癌患者术80例,根据检测方式分为对照组和实验组各40例;对照组采用MSCT检测;实验组采用MRI检测;分别对胃癌的术前T分... 目的研究术前多模态MRI成像与MSCT图像评价胃癌T分期价值。方法2017年1月至2019年12月于医院接受MRI成像与MSCT检查的胃癌患者术80例,根据检测方式分为对照组和实验组各40例;对照组采用MSCT检测;实验组采用MRI检测;分别对胃癌的术前T分期进评估,将检查结果与以手术组织学检测结果为“金标准”进行比较,比较两种方法的诊断效能。结果对照组对胃癌T_(1)期和T_(2)期诊断符合率分别为75.00%、88.98%与实验组诊断符合率77.78%、88.89%差异无统计学意义(P>0.05);实验组对胃癌T_(3)期和T_(4)期诊断符合率分别为81.81%、90.91%显著高于对照组45.45%、50.00%(P<0.05);两种方式对T_(1)期和T_(2)胃癌的诊断效能差异无统计学意义,MRI对胃癌T_(3)期和T_(4)期诊断效能显著高于MSCT。结论MRI成像与MSCT图像对于评价T_(1)期和T_(2)期胃癌无明显优势,但对于T_(3)期和T_(4)期MRI成像具有较大的优势。 展开更多
关键词 胃癌 多层螺旋CT 磁共振成像 T分期
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MSCT小肠造影与消化内镜联合诊断炎症性肠病的价值 被引量:1
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作者 黄艳 谢晓刚 杜舒曼 《河南医学研究》 CAS 2023年第12期2241-2244,共4页
目的研究多层螺旋计算机体层成像(MSCT)小肠造影与消化内镜联合诊断炎症性肠病的应用价值。方法选取2018年2月至2021年1月郑州人民医院98例疑似炎症性肠病患者,均采用MSCT小肠造影和消化内镜检查,以病理活检结果为金标准,统计MSCT小肠... 目的研究多层螺旋计算机体层成像(MSCT)小肠造影与消化内镜联合诊断炎症性肠病的应用价值。方法选取2018年2月至2021年1月郑州人民医院98例疑似炎症性肠病患者,均采用MSCT小肠造影和消化内镜检查,以病理活检结果为金标准,统计MSCT小肠造影和消化内镜单独诊断和联合诊断的诊断结果和诊断效能,分析MSCT小肠造影和消化内镜单独诊断和联合诊断不同类型炎症性肠病和炎症性肠病病变的检出率。结果本组98例疑似炎症性肠病患者中,经病理活检确诊阳性71例,阴性27例;MSCT小肠造影诊断出真阳性49例,真阴性15例;消化内镜诊断出真阳性40例,真阴性16例;二者联合诊断出真阳性67例,真阴性13例;二者联合诊断的灵敏度、准确度较MSCT小肠造影诊断和消化内镜诊断高,漏诊率较MSCT小肠造影诊断和消化内镜诊断低(P<0.05);二者联合诊断克罗恩病、溃疡性结肠炎检出率较MSCT小肠造影诊断和消化内镜诊断高(P<0.05);二者联合诊断多节段病变、肠腔狭窄、肠壁溃疡检出率较MSCT小肠造影诊断和消化内镜诊断高(P<0.05)。结论MSCT小肠造影与消化内镜联合诊断炎症性肠病能提升诊断灵敏度、特异度和准确度,减少漏诊和误诊情况的发生,且二者联合可确定疾病类型,为临床制定治疗方案提供指导。 展开更多
关键词 炎症性肠病 多层螺旋计算机体层成像 小肠造影 消化内镜
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MSCT在自发性孤立性肠系膜上动脉夹层诊断中的特点
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作者 孙敬 赵文露 +4 位作者 翁逸琬 周婷 陆珏清 沈钧康 蒋哲瑜 《医药前沿》 2023年第9期34-40,共7页
目的:探讨MSCT在自发性孤立性肠系膜上动脉夹层(SISMAD)诊断中的特点。方法:回顾分析2018年6月-2021年12月间苏州市相城人民医院与苏州大学附属第二医院收治的86例SISMAD患者(苏州大学附属第二医院77例,苏州市相城人民医院9例)的CT影像... 目的:探讨MSCT在自发性孤立性肠系膜上动脉夹层(SISMAD)诊断中的特点。方法:回顾分析2018年6月-2021年12月间苏州市相城人民医院与苏州大学附属第二医院收治的86例SISMAD患者(苏州大学附属第二医院77例,苏州市相城人民医院9例)的CT影像及临床资料。分析SISMAD发生部位、管径大小、管腔密度、管周脂肪浸润及CT增强特点,提炼SISMAD CT平扫及增强特征。结果:86例SISMAD发生在肠系膜上动脉垂直部上端68例、管周晕征:45例(约52.3%)、管腔密度增高:44例(约51.2%);86例SISMAD患者,Ⅰ型31例,Ⅱ型17例,Ⅲ型12例,Ⅳ型26例。结论:CT平扫肠系膜上动脉管径增粗、管周晕征提示SISMAD的可能性,进一步增强CT可明确诊断。 展开更多
关键词 自发性孤立性肠系膜上动脉夹层 多层CT扫描
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Multislice spiral CT angiography in evaluation of liver transplantation candidates
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作者 Dong-Mei Guo and Jie Bian Dalian, China Department of Radiology, Second Affiliated Hospital, Dalian Medical University, Dalian 116027 , China 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS 2005年第1期32-36,共5页
BACKGROUND: Orthotopic liver transplantation has be- come the treatment of choice for patients with end-stage liver disease. This study was designed to study whether multislice spiral CT angiography (MSCTA) could be u... BACKGROUND: Orthotopic liver transplantation has be- come the treatment of choice for patients with end-stage liver disease. This study was designed to study whether multislice spiral CT angiography (MSCTA) could be used for preoperative evaluation for orthotopic liver transplanta- tion candidates. METHODS: Eighty consecutive potential candidates for liver transplantation were evaluated with dual-phase three-di- mensional CT angiography (3DCTA). The arterial-phase was used to create vascular maps of the celiac axis (inclu- ding the origin of the hepatic common artery, left gastric artery and splenic artery) and origin of the superior mesen- teric artery. The portal venous-phase was used to analyze portal vein thrombosis and collateral vascularization of the portal vein. Statistical analyses were made using the chi- square test for differences between hepatic arterial anatomy of 80 patients and Michel's anatomy of 200 patients. Appearance of MSCTA and operative results of 16 patients were analyzed. RESULTS; Sixty-two patients (77.5%) showed conven- tional and 18 (22.5%) nonconventional hepatic arterial anatomy. A significant difference was found between the two groups in anatomy of the hepatic artery (P <0.05). Celiac axis stenosis was observed in 6 patients, SA aneu- rysm in 2, small-caliber hepatic arterial vessels in 2, and portal vein thrombosis in 15. Vascular structures of 16 ope- rative patients were well defined. CONCLUSION: As a noninvasive examination, MSCTA can provide a comprehensive preoperative vascular evalua- tion for liver transplantation candidates. 展开更多
关键词 liver transplantation candidates three-dimensional CT angiography X-ray computed tomography multislice helical CT
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MSCT、MRI及血清肿瘤标志物在卵巢卵黄囊瘤诊断中的应用价值
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作者 蒲烨 林生发 +2 位作者 赵大聪 彭昌勇 刘一江 《中国CT和MRI杂志》 2023年第11期117-120,共4页
目的探讨多层螺旋计算机断层扫描(MSCT)、核磁共振成像(MRI)及血清肿瘤标志物在卵巢卵黄囊瘤诊断中的应用价值,并尝试建立量化规则,把MSCT、MRI征象描述转化为可进行比较分析的数值资料。方法收集2019年1月-2022年3月在达州市中西医结... 目的探讨多层螺旋计算机断层扫描(MSCT)、核磁共振成像(MRI)及血清肿瘤标志物在卵巢卵黄囊瘤诊断中的应用价值,并尝试建立量化规则,把MSCT、MRI征象描述转化为可进行比较分析的数值资料。方法收集2019年1月-2022年3月在达州市中西医结合医院经手术病理证实的卵巢卵黄囊瘤的患者93例作为研究对象(研究组),另选取同时期内年龄范围相同且经病理证实为其他类型卵巢肿瘤的患者88例作为对照组进行比较。所有患者均完善CT、MRI及血清肿瘤标志物检查。观察卵巢卵黄囊瘤MSCT、MRI表现,绘制接收者工作特征(ROC)曲线分析MSCT、MRI及血清肿瘤标志物对卵黄囊瘤单独和联合诊断的应用价值,计算准确度、灵敏度和特异度,分析其诊断价值。结果研究组患者血清甲胎蛋白(AFP)水平明显高于对照组,差异有统计学意义(P<0.05)。研究组患者血清糖类抗原125(CA125)水平明显低于对照组,差异有统计学意义(P<0.05)。ROC分析显示:MSCT、MRI征象及血清AFP、CA125联合应用时的灵敏度、特异度、准确度分别为0.903、0.852、0.878,均高于单独应用的诊断结果,MSCT、MRI及血清肿瘤标志物联合应用对卵黄囊瘤具有较高的诊断价值,曲线下面积(AUC)为0.878。结论MSCT、MRI及血清肿瘤标志物(AFP、CA125)联合应用对卵巢卵黄囊瘤具有较高的诊断价值,且具有重复性好、临床应用范围广泛等优势。 展开更多
关键词 多层螺旋计算机断层扫描 核磁共振成像 肿瘤标志物 卵黄囊瘤 诊断价值
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重症肺炎患者MSCT影像学征象、CPIS评分、PCT水平与病情严重程度的关系研究 被引量:1
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作者 卓静 《影像技术》 CAS 2023年第4期41-46,共6页
目的:探讨重症肺炎患者多层螺旋电子计算机断层扫描(MSCT)影像学征象、临床肺部感染评分(CPIS)、降钙素原(PCT)水平与病情严重程度的关系,从而为临床治疗提供参考依据。方法:选取我院2022年1月至2023年2月收治的100例重症肺炎患者作为... 目的:探讨重症肺炎患者多层螺旋电子计算机断层扫描(MSCT)影像学征象、临床肺部感染评分(CPIS)、降钙素原(PCT)水平与病情严重程度的关系,从而为临床治疗提供参考依据。方法:选取我院2022年1月至2023年2月收治的100例重症肺炎患者作为观察组,并根据其入院时急性生理与慢性健康(APACHEⅡ)将其分为非危重症组(28例)、危重症组(42例)以及急危重症组(30例),另选取同期于我院进行治疗的普通肺炎患者110例作为对照组。比较对照组与观察组MSCT影像学征象、CPIS评分、PCT水平,不同组别重症肺炎MSCT影像学征象、CPIS评分、PCT水平,分析MSCT影像学征象、CPIS评分、PCT水平与病情严重程度的相关性,并对典型病例进行分析。结果:与对照组相比,观察组MSCT出现磨玻璃样改变、斑片影改变以及肺实变等影像学征象患者占比均更高;CPIS得分以及血清PCT水平高于对照组,差异具有统计学意义(P<0.05);不同严重级别的重症肺炎患者MSCT出现磨玻璃样改变影像学征象患者占比呈逐渐降低趋势;CPIS得分以及血清PCT水平呈逐渐升高趋势,差异具有统计学意义(P<0.05);3组MSCT出现斑片影改变、肺实变等影像学征象患者占比相比差异无统计学意义(P>0.05);经Pearson相关系数分析,MSCT中磨玻璃样改变影像学征象与重症肺炎患者的病情严重程度呈负相关关系,CPIS评分以及血清PCT水平与重症肺炎患者的病情严重程度呈正相关关系(r=-0.67,0.99,0.45,P<0.05)。结论:重症肺炎患者MSCT影像学征象中磨玻璃样改变减少,而CPIS得分以及血清PCT水平越高,则重症肺炎患者的病情越危急,临床医师可以此为指导对患者病情进行相应评估,从而判断重症肺炎患者危急程度,从而制定针对性治疗方案。 展开更多
关键词 重症肺炎 多层螺旋电子计算机断层扫描 临床肺部感染评分 降钙素原 相关性
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MSCT及3.0 T MRI在肾上腺肿瘤鉴别诊断中的应用价值
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作者 杨洁 李秋实 +4 位作者 杜森 庄琰 张进 任文妍 沈松鹤 《中国医学工程》 2023年第9期77-80,共4页
目的探讨多层螺旋CT(MSCT)及中高场强磁共振磁(3.0T MRI)在肾上腺肿瘤鉴别诊断中的应用价值。方法选取2019年4月至2020年4月河南大学第一附属医院收治的96例肾上腺肿瘤患者作为研究对象,均给予MSCT、3.0T MRI检查,以病理活检结果为金标... 目的探讨多层螺旋CT(MSCT)及中高场强磁共振磁(3.0T MRI)在肾上腺肿瘤鉴别诊断中的应用价值。方法选取2019年4月至2020年4月河南大学第一附属医院收治的96例肾上腺肿瘤患者作为研究对象,均给予MSCT、3.0T MRI检查,以病理活检结果为金标准,统计两种检查方法对疾病的检出情况;并对比MSCT、3.0T MRI在肾上腺肿瘤中的诊断效能(诊断符合率、灵敏度、特异度、阳性预测值、阴性预测值、误诊率、漏诊率)。结果MSCT检查的诊断符合率、灵敏度、特异度、阳性预测值、阴性预测值分别为95.83%、94.83%、97.37%、98.21%、92.50%,均高于3.0T MRI检查的77.08%、74.14%、81.58%、86.00%、67.39%,差异有统计学意义(χ^(2)=14.413、9.469、5.029、5.648、8.150,均P<0.05);MSCT检查的误诊率、漏诊率分别为2.63%、5.17%,均低于3.0T MRI检查的18.42%、25.86%,差异有统计学意义(χ^(2)=5.029、9.469,均P<0.05)。结论采用MSCT检查肾上腺肿瘤,能有效鉴别诊断疾病,提高定性准确性,检查效果理想,能为临床诊治工作提供客观有力的数据。 展开更多
关键词 多层螺旋CT 中高场强磁共振磁 肾上腺肿瘤 诊断效能
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晚期胃癌HER2表达与MSCT多参数影像表现相关性分析
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作者 陈龙 叶薇 +1 位作者 王康 陈文坚 《影像技术》 CAS 2023年第6期27-33,共7页
目的:探讨人表皮生长因子受体-2(HER2)在晚期胃癌患者中的表达与MSCT多参数影像表现的相关性。方法:回顾性分析2017年6月至2021年12月期间62例晚期胃癌患者临床资料及MSCT扫描资料,根据HER2表达情况的免疫组化结果,晚期胃癌患者分为HER... 目的:探讨人表皮生长因子受体-2(HER2)在晚期胃癌患者中的表达与MSCT多参数影像表现的相关性。方法:回顾性分析2017年6月至2021年12月期间62例晚期胃癌患者临床资料及MSCT扫描资料,根据HER2表达情况的免疫组化结果,晚期胃癌患者分为HER2阴性组47例(75.8%)和HER2阳性组15例(24.2%)。先采用卡方检验对临床病历资料(年龄、性别、分化程度、Lauren分型)及CT多参数影像表现数据(肿瘤部位、厚度、大小、强化方式、强化程度、是否淋巴结转移、是否肝转移及是否腹膜转移)进行分析,再将有统计学意义的因素用Logistic回归进行分析,计算优势比(dominance ratio,OR)。结果:明显强化、是否肝转移、是否腹膜转移,两组间差异具有统计学意义(P<0.05)。年龄、性别、分化程度、Lauren分型、肿瘤部位、厚度、大小、强化方式、是否淋巴结转移在两组间差异无统计学意义(P>0.05)。Logistic回归分析显示,明显强化(OR=8.214)、肝脏转移(OR=6.244)与HER2阳性有关(P<0.05)。结论:与HER2阴性胃癌相比,HER2阳性胃癌表现强化程度(明显强化)、肝脏转移,具有一定潜在的临床应用参考价值。 展开更多
关键词 晚期胃癌 人类表皮生长因子受体-2 多排螺旋计算机断层扫描
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Quantitative and qualitative assessment of non-obstructive left main coronary artery plaques using 64-multislice computed tomography compared with intravascular ultrasound 被引量:7
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作者 SHEN Yi QIAN Ju-ying +5 位作者 WANG Ming-hui LIU Yuan LIU Xue-bo GE Lei MA Jian-ying GE Jun-bo 《Chinese Medical Journal》 SCIE CAS CSCD 2010年第7期827-833,共7页
Background There are few reports of quantitative and qualitative measuring of left main coronary artery (LMCA) plaques by multislice computed tomography coronary angiography (MSCTA), especially when compared with ... Background There are few reports of quantitative and qualitative measuring of left main coronary artery (LMCA) plaques by multislice computed tomography coronary angiography (MSCTA), especially when compared with intravascular ultrasound (IVUS) as reference standard. The aim of this study was to evaluate the use of 64-MSCTA in the diagnosis of LMCA disease, and the accuracy of MSCTA in the quantitative and qualitative assessment of the LMCA lesion as compared with IVUS.Methods A total of 91 patients (53 men, 38 women, mean age (64.78±9.19) years) were examined by 64-MSCTA and IVUS. Compared with the IVUS, the sensitivity, specificity, positive and negative predictive values (PPV and NPV) of the MSCTA on the diagnosis of LMCA diseases were calculated. Also, kappa index (K) for the agreement between MSCTA and IVUS was calculated. Minimal lumen area (MLA), external elastic membrane cross-sectional area (EEM-CSA) and plaque burden were measured by two blinded and independent operators on MSCTA cross-sectional reconstruction and compared with the parameters measured from IVUS by manually tracing. The CT value of soft, fibrous and calcific plaques was measured using IVUS classification of the plaques.Results The sensitivity, specificity, PPV and NPV of MSCTA for detecting LMCA plaques were 93.1%, 84.2%, 95.7%, 76.2%, respectively. Kappa index (K=0.744, P〈0.001) indicated excellent agreement between MSCTA and IVUS. The Pearson index between MLA on IVUS and MLA on MSCTA was 0.815 (P 〈0.01). The Pearson index of plaque burden and EEM-CSA between IVUS and MSCTA was 0.736 and 0.740 respectively (both P 〈0.01). The CT value of soft plaque, fibrous plaque and calcific plaque compared with IVUS were (52.52±15.71) HU, (108.32±43.44) HU and (604.16±377.67) HU (P〈0.001). Receiver operating characteristic curve analysis of CT value of non-calcific plaques for predicting soft plaques showed the cutpoint was 54.35 HU, with a sensitivity of 83.3% and specificity of 94.4%. Conclusions Sixty-four section MSCTA is an effective diagnostic tool for the detection of LMCA plaques with higher sensitivity and specificity. The correlation of quantitative and qualitative analysis between MSCTA and IVUS was excellent. The CT value of plaques can help the diagnosis of plaque composition. 展开更多
关键词 multislice computed tomography intravascular ultrasound left main coronary artery
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Role of contrast enhanced ultrasound in detection of abdominal aortic abnormalities in comparison with multislice computed tomography 被引量:3
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作者 Dirk-André Clevert Kerstin Schick +2 位作者 CHEN Min-hua ZHU Qing-li Maximilian Reiser 《Chinese Medical Journal》 SCIE CAS CSCD 2009年第7期858-864,共7页
Conventional ultrasound (US) is the most widely used imaging modality in routine clinical practice worldwide. The limitations of conventional ultrasound in the detection of aortic lesions versus multi-slice compute... Conventional ultrasound (US) is the most widely used imaging modality in routine clinical practice worldwide. The limitations of conventional ultrasound in the detection of aortic lesions versus multi-slice computed tomography angiography (MS-CTA) are well known. 展开更多
关键词 contrast enhanced ultrasound multislice computed tomography abdominal aortic lesions aorticdissection abdominal aortic aneurysm aorto-caval fistula inflammatory abdominal aortic aneurysm
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The accuracy and optimal slice thickness of multislice helical computed tomography for right and left ventricular volume measurement 被引量:1
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作者 崔炜 近藤武 +12 位作者 安野泰史Department of Radiological Technology School of Health Sciences Fujita Health University Toyoake 470-1192 Japan 郭玉印 佐藤贵久 皿井正羲 篠崎仁史 柿澤聡士 杉浦厚司 大岛慶太 片田和廣 菱田仁 《Chinese Medical Journal》 SCIE CAS CSCD 2004年第9期1283-1287,共5页
Background Multislice helical computed tomography (MSCT) has been used to depict coronary anatomy noninvasively, and proved useful for evaluating ventricular function. The aim of our study was to assess the accuracy... Background Multislice helical computed tomography (MSCT) has been used to depict coronary anatomy noninvasively, and proved useful for evaluating ventricular function. The aim of our study was to assess the accuracy of ventricular volume as measured by MSCT.Methods Fourteen human left ventricular (LV) and 15 right ventricular (RV) casts were scanned by MSCT. A series of LV and RV short-axis images were reconstructed later with slice thickness of 2.0 mm, 3.5 mm, 5.0 mm, 7.0 mm, and 10.0 mm. Ventricular volume was calculated by the multislice tomographic Simpson’s method. True LV and RV cast volumes were determined by water displacement. Results Both calculated LV and RV volumes correlated highly with the corresponding true volumes (all r>0.95, P<0.01). But with slice thickness from 2.0 mm to 10.0 mm, MSCT scanning overestimated the corresponding true volume by (3.21±5.95) ml to (12.58±8.56) ml for LV and (10.22±8.45) ml to (23.91±12.24) ml for RV (all P<0.01). There was a very high correlation between the overestimation and the selected slice thickness for both LV and RV volume measurements (r=0.998 and 0.996, P<0.01, respectively). However, when slice thickness was reduced to 5.0 mm, the overestimation for both LV and RV volume measurements became nonsignificant for slice thickness from 2.0 mm to 5.0 mm. Conclusions Both LV and RV volumes can be accurately estimated by MSCT. Thinner slice has more accurate calculated volume. However, 5.0 mm slice thickness is thin enough for an accurate measurement of LV or RV volume. 展开更多
关键词 multislice helical computed tomography ventricular volume CAST slice thickness
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MSCTE和MSCTA联合运用在小肠梗阻病因诊断中的价值 被引量:7
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作者 陈海涛 何伯圣 +3 位作者 黄胜 崔海燕 杨红 龚沈初 《重庆医学》 CAS CSCD 北大核心 2011年第9期856-858,861,共4页
目的探讨多层CT小肠造影(MSCTE)和多层CT血管造影(MSCTA)联合运用在小肠梗阻病因诊断中的价值。方法回顾性分析57例行MSCTE和MSCTA检查,并经过手术和病理检查证实为小肠梗阻患者的影像学资料。使用Siemens Somatom Sensation 64层螺旋C... 目的探讨多层CT小肠造影(MSCTE)和多层CT血管造影(MSCTA)联合运用在小肠梗阻病因诊断中的价值。方法回顾性分析57例行MSCTE和MSCTA检查,并经过手术和病理检查证实为小肠梗阻患者的影像学资料。使用Siemens Somatom Sensation 64层螺旋CT进行检查,经过后处理方法[多平面重建(MPR)、最大密度投影(MIP)、容积再现技术(VRT)、曲面重建法(CPR)],分析其图像在小肠梗阻病因诊断中的作用。结果所有病例中,肿瘤15例,粘连14例,腹外疝8例,炎症6例,内疝或扭转5例,肠套叠3例,胆石或粪石4例,血管性2例。组Ⅰ:常规横断位结合MPR、CPR对病因诊断的准确性为89.5%(51/57);组Ⅱ:常规横断位结合MPR、CPR和CTA技术(VRT、MIP)对病因诊断的准确性为94.7%(54/57);组Ⅱ的诊断准确性明显高于组Ⅰ(P<0.05)。结论 MSCTA和MSCTE的联合运用可以明显提高小肠梗阻病因诊断的准确性,具有较高的临床应用价值。 展开更多
关键词 血管造影术 肠梗阻 诊断 多层CT
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肺硬化性血管瘤的MSCT诊断 被引量:11
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作者 王同兴 孙晋 +1 位作者 谢光辉 徐辉 《中国医学计算机成像杂志》 CSCD 北大核心 2014年第4期325-328,共4页
目的:探讨肺硬化性血管瘤的MSCT表现特点,以期提高影像诊断准确率。方法:回顾性分析19例经手术及病理证实的肺硬化性血管瘤的患者资料,女性18例,男性1例,平均年龄为52.5岁;采用16层螺旋CT扫描仪,120kV,160 mAs,层厚5mm,层间距5mm,高压... 目的:探讨肺硬化性血管瘤的MSCT表现特点,以期提高影像诊断准确率。方法:回顾性分析19例经手术及病理证实的肺硬化性血管瘤的患者资料,女性18例,男性1例,平均年龄为52.5岁;采用16层螺旋CT扫描仪,120kV,160 mAs,层厚5mm,层间距5mm,高压团注非离子型对比剂100ml(300mg/ml)增强扫描,流速2.5ml/s,延迟30s扫描,回顾性1.5mm薄层重建及多平面重组(MPR)分析。结果:全部为单发实性类圆形肺结节或肿块,最大径67mm,平均直径23mm,分布无偏向性,边界清晰。8例(42.1%)见斑点状钙化灶,4例(21.1%)见分叶征,3例(15.8%)见空气新月征,4例(21.1%)病灶跨叶间胸膜生长,1例(5.26%)见胸膜牵拉凹陷,8例(80%)增强CT扫描均显示贴边血管征。结论:肺硬化性血管瘤多见于中年女性,表现为肺内单发结节或肿块,MSCT表现有一定的特点,病灶可跨叶间裂生长,明显强化及贴边血管征有助于本病的诊断。 展开更多
关键词 肺硬化性血管瘤 肺肿瘤 msct 诊断
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MSCT诊断先天性肺静脉异位引流临床价值 被引量:6
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作者 李炜 马小静 +2 位作者 熊青峰 陈险峰 彭志远 《中国CT和MRI杂志》 2010年第4期12-14,共3页
目的评价多排螺旋CT(MSCT)血管造影在先天性肺静脉异位引流中的临床价值。方法收集2005年至2009年94例MSCT诊断的肺静脉异位引流患者,其中78例经手术证实,(男性40例,女性38例)进行回顾性分析,并将CT诊断结果与术后诊断对照。结果 78例... 目的评价多排螺旋CT(MSCT)血管造影在先天性肺静脉异位引流中的临床价值。方法收集2005年至2009年94例MSCT诊断的肺静脉异位引流患者,其中78例经手术证实,(男性40例,女性38例)进行回顾性分析,并将CT诊断结果与术后诊断对照。结果 78例行手术治疗的肺静脉异位引流病例中,完全性肺静脉异位引流者共29例,其中心上型7例、心脏型14例、心下型3例、混合型5例;部分性肺静脉异位引流者共49例。与术后诊断相比,诊断正确符合率100%。结论 MSCT诊断肺静脉异位引流具有极高的诊断准确率,是一种很好的无创检查方法,一次检查不仅解决心内结构连接异常外,还可同时了解合并畸形或其它并发症的诊断问题,对外科医师的手术处理有良好的指导作用。 展开更多
关键词 肺静脉异位引流 多排螺旋CT 血管造影术
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膝骨关节炎MSCT、MRI的影像学特征及联合应用的诊断价值 被引量:16
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作者 谷艳梅 郭静 +1 位作者 田斌 李佳 《中国现代医学杂志》 CAS 北大核心 2021年第23期6-10,共5页
目的探讨膝骨关节炎多层螺旋计算机断层扫描(MSCT)、磁共振成像(MRI)的影像学特征,分析两者联合诊断的效能。方法回顾性分析2017年1月—2018年3月北京市和平里医院接收的疑似膝骨关节炎受检者78例的临床资料,分别实施MSCT、MRI检查。所... 目的探讨膝骨关节炎多层螺旋计算机断层扫描(MSCT)、磁共振成像(MRI)的影像学特征,分析两者联合诊断的效能。方法回顾性分析2017年1月—2018年3月北京市和平里医院接收的疑似膝骨关节炎受检者78例的临床资料,分别实施MSCT、MRI检查。所有受试者行关节镜检查明确膝骨关节炎的发生情况,将其作为"金标准"。总结MSCT、MRI的影像学表现,绘制受试者工作特征(ROC)曲线,分析不同方法的诊断效能。结果全组受试者中共有102膝确诊为膝骨关节炎,MSCT、MRI诊断该病均有典型的特征;MSCT、MRI、两者联合诊断膝骨关节炎的敏感性分别为86.27%(95%CI:0.786,0.897)、95.10%(95%CI:0.824,0.959)、98.04%(95%CI:0.855,0.987);特异性分别为77.78%(95%CI:0.712,0.798)、90.74%(95%CI:0.866,0.913)、98.15%(95%CI:0.890,0.985);准确性分别为83.33%、93.89%、98.08%;AUC分别为0.712(95%CI:0.502,0.851)、0.806(95%CI:0.671,0.855)、0.913(95%CI:0.782,0.974)(P<0.05)。联合诊断的敏感性、特异性、准确性和AUC均高于单独诊断。结论MSCT、MRI诊断膝骨关节炎有典型的影像学特征,且两者联合诊断的效能更佳。 展开更多
关键词 膝骨关节炎 多层螺旋计算机断层扫描 磁共振成像 影像学特征
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