多层螺旋CT高压电损伤肢体灌注成像临床应用

目的：探讨256层智能CT（intelligent CT，iCT）灌注成像技术显示高压电损伤肢体血管及肌肉微循环变化的能力及优势。方法：采用Phillips公司256层iCT对所有患者进行双侧肢体及相应躯干同时灌注检查，所得图像传入Phillips公司专属EBW工作站，用Functional CT-general模式行灌注图像处理，计算灌注参数和重建相应的灌注参数图；并用MPR、CPR、VR、MIP及AVA软件进行血管的分析。结果：21例患者经多层螺旋CT灌注成像检查，均得到清晰血管CTA图像，CTA示血管狭窄、中断、闭塞7例，血管未见明显异常14例；肌肉损伤21例。结论：256层iCT高压电损伤肢体灌注成像，检查安全、方便，图像处理简单省时、图像质量清晰，能同时获得肢体血管形态信息及肌肉微循环信息，为临床治疗方式提供更多、更全面的影像资料。

Multi-slice CT perfusion of high voltage electrical injured limbs

Objective： To investigate the role and advantages of 256-slice CT perfusion in displaying blood vessel and muscle-microcirculation of high voltage electrical injured limbs.Methods： Perfusion scanning was performed for both-limbs and trunk by Phillips 256 slice intelligent CT（iCT）.All the images were imported to EBW workstation.Images were post-processed,perfusion parameters were calculated and perfusion picture was reconstructed using Functional CT-general mode.Blood vessels were rebuilt using MPR,CPR,VR,MIP and AVA software.Results： All the 21 cases got clear CTA imaging.Stenosis,discontinuity and obstruction of blood vessels were seen in 7 cases.Fourteen cases had normal CTA.Muscle damage was seen in 21 cases.Conclusions： 256 slice iCT perfusion is a safe,convenient and simple examination method.We can obtain the information of blood vessel and muscle-microcirculation from it.It could provide much more and full-scale image data for clinical treatment.