摘要
目的探讨320排螺旋CT直接法下腔静脉CT血管造影(CTP)的可行性及临床应用价值。方法采用Aq-uilion One 320排螺旋CT对13例疑诊为下腔静脉阻塞的患者行直接法下腔静脉CTP检查,通过Vitrea 4.0后处理工作站对原始图像进行VR、MIP及MPR重建。由1名医师测量左肾静脉汇入下腔静脉处上方1 cm处的CT值,另2名医师采用9段分段法对下腔静脉及其属支的图像质量进行评价。结果对13例患者均顺利完成下腔静脉CTP检查;CT值为(341.33±62.95)HU;13例共117个血管节段中,图像质量为优、良、中等、差的节段分别为64、29、16、8个。重建图像可直观显示下腔静脉的结构、病变部位、范围及狭窄程度。结论直接法下腔静脉CTP用以诊断下腔静脉阻塞性病变切实可行,且具有较高的临床应用价值。
Objective To explore the feasibility and clinical application value of direct CT phlebography（CTP） in displaying inferior vena cava（IVC） with 320-row spiral CT scanner.Methods Thirteen patients with suspected obstructive IVC disease underwent direct CTP using Aquilion One CT scanner.Original image data were transferred to Vitrea 4.0 workstation for post-processing including MPR,MIP and VR.The CT value of 1 cm above the abouchement to IVC and left renal vein was measured by one radiologist.Image quality of IVC and its branches were assessed by another two radiologists using 9-segment model.Results All CTP examinations were performed successfully.CT value of 1 cm above the abouchement to IVC and left renal vein was（341.33±62.95）HU.Among the 117 vascular segments of 13 patients,image quality was excellent in 64 segments,good in 29 segments,acceptable in 16 segments and poor in 8 segments,respectively.The anatomy of IVC,the location and size of lesions and the severity of IVC stenosis were displayed vividly on reconstruction images of CTP.Conclusion Direct CTP is a feasible method for the diagnose of IVC obstructive diseases with significant clinical application value.
出处
《中国医学影像技术》
CSCD
北大核心
2012年第1期117-120,共4页
Chinese Journal of Medical Imaging Technology
基金
重大心血管病诊疗关口前移关键技术的国际合作研究(2010DFB30040)
