【摘 要】
：
Objective The purpose of this study is to evaluate the prevalence and characteristics of myocardial bridging (MB) in a large series of patients and to assess the relationship between atherosclerosis a
【机 构】
：
广州军区广州总医院放射科 广东广州510010 Department of Radiology,
论文部分内容阅读
Objective The purpose of this study is to evaluate the prevalence and characteristics of myocardial bridging (MB) in a large series of patients and to assess the relationship between atherosclerosis and MB by using the dual-source computed tomographic coronary angiography.Methods Dual-source CT coronary angiography were performed on 1220(754 males, 466 females) cases of routine physical or clinical diagnosis of coronary artery disease.Using MPR, MIP, VRT and the other image processing technique for image post-processing and then to observe the detection rate, position, length and depth of myocardial bridge.The patients were divided into 2 groups according to with or without coronary artery disease in 2 cm proximal and distal of myocardial bridge and to compare the age of onset, the length and depth of MB between 2 groups.Results Among these 1220 patient, 622(50.98%) patients were found with parietal coronary arteries(694segments) and 614 (98.71%) segments were at the LAD.The average length is 28.6mm, and the average depth is 2.3mm.All the MBs were without obvious coronary artery atherosclerosis and 319 cases with coronary artery atherosclerosis 2cm near MBs were found, including 298 cases (42.94%) in proximal and 21 cases(3.03%) in distal.The depth and length between the 2 groups of MB were no significant difference (P>0.05).Conclusions The detection rate of DSCT on myocardial bridge is high.DSCT is the optimal noninvasive method that can clearly show the location, length and depth of myocardial bridges, and the relationship with neighboring coronary artery.
其他文献
Purpose: By researching liver tumor model(Wister rat liver tissues) in vitro high-resolution magic angle spinning 1H MRS analysis, in order to get metabolism informations of liver tumor and normal tis
目的：分析肾盂移行上皮细胞癌CT表现.方法：回顾性总结分析经病理证实的13例肾盂移行上皮细胞癌的CT表现.结果：13例中男9例,女4例.病灶位于左肾5例,右肾8例；肾盂内7例,肾盂输尿管开口处6例.肿瘤直径0.5-4.1cm,平均2.3cm.10例表现为肾盂内息肉状肿物,3例表现为肾盂壁小结节样增厚.灌注减低10例,3例灌注无明显异常.增强扫描动脉期轻度强化,实质期进一步强化10例；三期均轻度强化
目的：LiF∶Mg,Cu,P热释光探测器是辐射防护和个人剂量监测等领域应用最为广泛的辐射剂量探测器,探测器使用过程中的退火、冷却、辐照和测量等环节都将影响到剂量检测的准确性。本实验旨在探究热释光探测器的两种退火温度(240℃、250℃),在不同的冷却方式情况下对探测器的分散性、灵敏度及发光曲线的影响,从而获得最优化退火温度和冷却条件。
目的：评价MRI低信号分隔征在乳腺纤维腺瘤诊断中的价值.方法：回顾性分析经手术病理证实的52例共54个纤维腺瘤的MRI表现特点,分析低信号分隔征的鉴别诊断价值.结果：54个纤维腺瘤中,37个纤维腺瘤在MRI可观察到低信号分隔,发生率为69％ (37/54)；其中29个病灶分隔厚度小于2mm,8个病灶厚度大于2mm.37个病灶低信号分隔在T1WI脂肪抑制序列均观察不清,33个病灶在T2WI脂肪抑制序
BACKGROUND: In patients with Kawasaki disease (KD), it is necessary for evaluating the risk stratification and therapeutic management in the distribution and size of coronary artery aneurysms (CAA).Al
Objective: To explore the clinical application value of dual-energy imaging with Dual-source CT(2008G Siemens Somatom Definition) for head and cervical vessel diseases.Methods: The imaging data underw
Objective To show the improved diagnostic image quality of dual-energy myocardial scan mode compared with coronary CTA scan mode with Dual-Source CT.Methods We performed a retrospective analysis of 10
Objective To investigate the clinical value and accuracy of DSCT in the assessment of the pulmonary arteries in patients with complex congenital heart disease.Materitals and methods DSCT and echocardi
Purpose: To investigate the accuracy of right ventricular function in patients with Tetralogy of Fallot(TOF) by two methods(by MPR and VR methods) by DSCT.Methods and Materials: 30 patients underwent
Purpose: To evaluate the right ventricular time-volume curves in patients with Tetralogy of Fallot.Methods and Materials: Retrospectively analyze right ventricular time-volume of 18 TOF and 4 healthy