摘要
目的评价64层螺旋CT血管探针技术(vesselprobe,VP)对探测颈动脉狭窄程度、累及范围及斑块性质的能力,并与常规多平面重建(MPR)、曲面重建(CPR)相比较。方法 35例颈部血管CTA证实有颈动脉斑块患者均经64层螺旋CT双侧颈总动脉、颈内动脉及双侧椎动脉VP重组,以自动分析颈动脉狭窄程度、累及范围及斑块密度。获自VP的全部测量数据是回顾性分析的,并与MPR、CPR的测量数据进行了比较。结果 VP与MPR、CPR在探测颈动脉狭窄程度、累及范围及确定斑块性质方面比较,差异无统计学意义(P>0.05)。35例双侧颈动脉及椎动脉有斑块血管共84支,累及范围介于5.0～59.0 mm。大多数患者以局限性、混合性斑块及轻度血管狭窄为主。结论 64层螺旋CT时间分辨率与空间分辨率高,VP自动分析血管快速、可靠,能准确评价颈动脉狭窄程度、累及范围及斑块性质,对指导临床治疗具有重要意义。
Objective To evaluate the usefulness of 64-slice spiral CT with vessel probe（VP） in detecting carotid stenosis,involved extent and plaque density and to compare with that of conventional MPR and CPR as reference technique.Methods Thirty-five patients with cervical artery plaques confirmed by CTA underwent VP reformation of bilateral common carotid,internal carotid and vertebral arteries for automatically analyzing carotid stenosis severity,involved extent and plaque density.All data acquired from VP measurements were retrospectively analyzed and compared with those of MPR and CPR.Results The comparison between VP and MPR,CPR in detecting carotid stenosis,involved extent and plaque nature was not statistic difference（P〉0.05）.Among 35 cases,the plaques occurred in bilateral carotid and vertebral arteries were found in 84 branch vessels.The involved extent ranged from 5.0 mm to 59.0 mm.The most patients were predominated by localized,mixed plaque and slight stenosis of cervical arteries.Conclusion 64-slice spiral CT has high temporal resolution and spatial resolution,while VP could accurately evaluate carotid stenosis severity,involved extent and plaque nature so that it has important significance in guiding clinical treatment.
出处
《实用医学影像杂志》
2011年第5期275-277,共3页
Journal of Practical Medical Imaging
