ADAMTS4 and triple-A syndrome: Comparing the ADAMTS4-MRI signal enhancement with the aortic area in a receiver operating characteristic (ROC), we could demonstrate, that the ADAMTS4-MRI level is a stronger predictor for a fatal AAA rupture with an area under the curve of 0.96 (ADAMTS4-MRI level) to 0.78 (aortic area) (Fig. 4e, f).