[Comparative value of MR-angiography, helical CT and digital angiography in the preoperative assessment of abdominal aortic aneurysms].
OBJECTIVE
To compare helical CT with MR angiography in pre-operative assessment of abdominal aortic aneurysm (AAA).


METHODS
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.


RESULTS
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.


CONCLUSIONS
Helical CT and MR angiography are equivalent in pre-operative assessment of AAA.
Walter
F
F
Service d'Imagerie Guilloz, Hôpital Central, Nancy.
Henrot
P
P
Blum
A
A
Hirsch
J J
JJ
Béot
S
S
Guillemin
F
F
Boccaccini
H
H
Régent
D
D
D000368:Aged; D000369:Aged, 80 and over; D015901:Angiography, Digital Subtraction; D017544:Aortic Aneurysm, Abdominal / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D003627:Data Interpretation, Statistical; D005260:Female; D006801:Humans; D018810:Magnetic Resonance Angiography; D008297:Male; D008875:Middle Aged; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000379:methods*
Valeur comparative de l'angio-IRM, du scanner hélicoïdal et de l'angiographie numérisée dans le bilan préopératoire des anévrismes de l'aorte abdominale.