Walter F, Henrot P, Blum A, Hirsch J J, Béot S, Guillemin F, Boccaccini H, Régent D
Service d'Imagerie Guilloz, Hôpital Central, Nancy.
J Radiol. 1998 Jun;79(6):529-39.
To compare helical CT with MR angiography in pre-operative assessment of abdominal aortic aneurysm (AAA).
Twenty patients with AAA underwent helical-CT, MR-angiography and digital angiography. All exams were interpreted independently by two groups of observers. Kappa and rho were calculated to assess correlations. Sensitivity and specificity were calculated to compare each method with the "gold standard" digital angiography.
Inter-observer correlation was excellent. There was a very good agreement between both methods in the assessment of the maximal diameter and the proximal neck of the aneurysm. There was no significant difference in the assessment of stenoses of the visceral and iliac arteries, the number of renal arteries, and iliac extension.
Helical CT and MR angiography are equivalent in pre-operative assessment of AAA.
比较螺旋CT与磁共振血管造影在腹主动脉瘤（AAA）术前评估中的应用。
20例腹主动脉瘤患者接受了螺旋CT、磁共振血管造影及数字血管造影检查。所有检查均由两组观察者独立解读。计算Kappa值和rho值以评估相关性。计算敏感度和特异度以将每种方法与“金标准”数字血管造影进行比较。
观察者间相关性良好。两种方法在评估动脉瘤最大直径和近端颈部方面具有很好的一致性。在内脏和髂动脉狭窄评估、肾动脉数量及髂动脉延伸方面的评估无显著差异。
螺旋CT和磁共振血管造影在腹主动脉瘤术前评估中效果相当。
