搜索结果: 31-37 共查到“知识库 生物医学工程 CT”相关记录37条 . 查询时间(0.078 秒)
比较常用对比剂流率(6 ml/s)下最大斜率法和去卷积算法在64层螺旋CT后处理中的差异。方法 收集32例接受64层螺旋CT头部平扫及灌注成像的患者,分别利用基于最大斜率模型和去卷积模型的灌注软件包进行后处理,在双侧皮质区绘制感兴趣区(ROI),测量CT灌注绝对参数值:脑血流量(CBF)、脑血容量(CBV)、平均通过时间(MTT)和达峰时间(TTP),以患侧参数值与对侧正常参数值的比值为相对参数值...
应用电子束CT低剂量扫描在冠状动脉CT成像病人中筛查早期肺癌
冠状动脉 扫描 电子束CT
2008/4/30
探讨新一代电子束CT(e-SPEED)在行冠状动脉CT成像检查病人中联合筛查早期肺癌的扫描方法及应用价值。方法:对104例健康查体者先行肺部低剂量电子束CT扫描,扫描参数为130kV,895mA,50ms,层厚6mm,层距3mm,重建层厚3mm。平扫后再经静脉注射对比剂进行CT冠状动脉成像检查,其中48例(心率≥70次/分)行电子束CT扫描,扫描参数为Multiphase Dual方式,140kV...
Anatomical evaluation of CT-MRI combined femoral model
Anatomical evaluation CT-MRI femoral model
2010/2/25
This study revealed that the local 2D contour-based measurement of matching deviation was 0.5 ± 0.3 mm in the femoral condyle, and in the middle femoral shaft. The global 3D contour matching deviation...
The Bony Interorbital Distance and Orbital Measurements in the Iranian Population: A CT Study
bony interorbital distance CT scan Iranian adults
2010/2/4
Background/Objective: Normal values for CT orbital measurements, which appear in refer-ence books, may not be applicable to the Iranian population. The purpose of this study was to determine normal va...