Diagnostic performance of CE-MRA in grading stenosis and therapy planning with TASC II classification
Clemens Wurz1, Amir Davari2, Hanns Ackermann3
1Institut für Diagnostische und Interventionelle Radiologie, Klinikum der Goethe-Universität, Theodor-Stern-Kai 7, Frankfurt am Main, Germany clemenswurz@web.de.
Objectives:
To assess to what extent results of CE-MRA coincide with DSA in grading of stenosis and planning of therapy in patients with PAOD.
Materials And Methods:
Retrospectively, images of 71 PAOD-patients were studied by three observers. For evaluation, the lower limb was subdivided into 31 segments and categorized with TASCII-score.
Results:
In grading stenosis, both modalities agreed in 93.26%. CE-MRA achieved sensitivity of 92.69% and specificity of 96.87% (κ = 0.88). The concordance of TASCII-classification was almost perfect.
Conclusion:
CE-MRA is an excellent method for the evaluation of PAOD with some tendency to overrate the grade of stenosis.
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