Purpose: To evaluate the feasibility of a new technique of contrast agent injection protocol in heart dynamic computed tomography in children with congenital heart disease.Method:The study included 65
Purpose: To explore the application of multi-slice CT angiography(MSCTA) and screw pathway design in the evaluatiou of posterior approach of upper cervical vertebrae; to observe the variation of the v
Purpose: To evaluate the iron content in cirrhosis-associated nudules by MRI and to investigate the accuracy of different MRI indexes in evaluating iron content by atomic absorption spectroscopy flame
Purpose:discuss the artifacts and stability of ADC value and characterization diagnosis with 3 in 1 mode EPI-DWI mode scan liver compared with conventional ALL mode.Method: 79 patient underwent liver
Purpose:To compare image noise and quality of abdominal CT with images reconstructed to different thickness with FBP, adaptive statistical iterative reconstruction(ASIR), and model based iterative rec
目的:常规X线或CT检查常不能发现膝关节韧带的损伤,而MRI检查具有良好的软组织对比度和高空间分辨率,对膝关节韧带损伤可清楚显示,可作为膝关节韧带损伤检查的重要或首选手段.在MR矢状位不同角度下扫描成像显示膝关节前交叉韧带,探讨膝关节前交叉韧带的最佳显示.
目的:探讨在2D MRCP扫描中,图像质量不佳情况下,利用相位校正技术(Phase scout),进行3D MRCP扫描,在上腹部胆道水成像诊断中的应用价值.方法:选取呼吸憋气不佳患者60例,年龄45岁-80岁,在本院Simenz 1.5T Aera磁共振(软件已升级至D13)下,采用平静自由呼吸,利用相位校正技术进行3D MRCP扫描,该方法所采用的主要扫描参数如下:FoV read:380-4
目的:了解多层螺旋CT中的"层"、"排"、"列"的概念.方法:多层CT(multi-slice CT),是指通过扫描一周后可以同时获得多层图像的CT,一般采用多排探测器(mulit-row detector)技术完成.随着科技的不断进步,排与层的概念越不容易区分,以飞利浦多层CT为例,它的4层、8层、16层CT均由24排探测器构成,只是通过技术手段开通不同数量的探测器通道以实现层数的不同.
Purpose: Diffusion Tensor Imaging, as a new functional magnetic resonance Imaging technology based on diffusion weight imaging,is currently the only non-invasive method to show the white matter fibers
目的:回顾性总结CR在胸部平片的应用,提高胸片影像质量方法:1.对象:本组110例病例,90例来自病房,20例来自门诊,男69例,女41例,年龄3 ~76岁,平均年龄35.1岁,其中肺癌30例,肺气肿5例,肺部炎症54例,肺结核6例,支气管炎15例,以上患者均有胸闷,气短,胸痛,咳嗽,发热,夜间盗汗等症状.