Clinical value of three-dimensional CT angiography in diagnosing blood vessel diseases
10.3760/cma.j.issn.1008-6706.2011.24.003
- VernacularTitle:三维CT血管造影诊断血管性疾病的临床价值
- Author:
Lie YANG
;
Qingchi LIN
;
Lijun CHEN
;
Tong SUI
;
Shaoyin DUAN
- Publication Type:Journal Article
- Keywords:
Angiography;
Tomography;
X-ray computed;
Image processing;
Computer assisted
- From:
Chinese Journal of Primary Medicine and Pharmacy
2011;18(24):3317-3319
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo valuate the three-dimensional CT angiography(3DCTA) in diagnosing blood vessel diseases.MethodsCTA findings of 284 patients confirmed with blood vessel diseases were retrospectively analyzed.They were divided into two groups:141 cases of head and neck and 143 cases of trunk and extremities.Scan was performed with the beam collimation of 0.625 ～ 3.0mm,increment of 0.3 ～ 1.4mm,pitch of 1.0 ～ 1.5,with the gross contrast medium of 1.5 ～ 2.0ml/kg.3D imaging methods included volume rendering(VR),multi-planar reformatting (MPR),curved planar reformatting(CPR),surface shade display(SSD),maximum intensity project(MIP) and virtual endoscopy(VE).The diagnostic results of CTA were compared with those of DSA and/or surgery.ResultsIn this study,3D images of vasculature met the diagnostic criterion.The diagnostic sensitivity,specificity and accuracy of CTA was 97.28％,82.35％ and 96.48％,respectively.The size of artery aneurysm shown with CTA and DSA had no significant difference( P ＞0.05 ),both smaller than that in surgery( P ＜ 0.05 ).Conclusion3DCTA could be used in diagnosing the cardiovascular diseases and compensate the limitation of conventional CT.It had the characteristics of non-invasion,high accuracy and could partly substitute DSA.
