Reliability of computed tomographic angiography 3‐D method of ruptured intracranial aneurysm measurements

Le résumé fourni par la source

Aim With the availability of multidetector computed tomography, 3‐D display and measurements of cerebral aneurysms can be performed routinely. Although the 3‐D method is more intuitive, 3‐D measurements can be more operator dependent. Few data are available on interobserver variability and intraobserver reproducibility. We aimed to assess the interobserver and intraobserver reliability using both planar and 3‐D methods. Patients and Methods A total of 48 subarachnoid haemorrhage patients were recruited into the study. Results Aneurysm dimensions showed medium‐to‐large correlations among observers using the planar method, and large correlations for the 3‐D method. The average Kendall's tau b coefficients among observers of aneurysm dimensions were significantly better for 3‐D methods compared to the planar method. Excellent correlations in planar and 3‐D aneurysm dimensions were found between repeated measurements (Kendall's tau b coefficients: 0.90–0.97; all P < 0.001). Conclusion High interobserver and intraobserver reliability was found for 3‐D assessments of aneurysm dimensions in computed tomographic angiography (CTA) for aneurysmal subarachnoid haemorrhage. Thus, the 3‐D method of aneurysm measurement can provide a reliable CTA assessment for cerebral aneurysm and data comparisons among different studies.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.