number of ruptures of arterial internal elastic lamina number of ruptures of the internal elastic lamina of the abdominal aorta and iliac arteries number of AA- and IA-RIEL The value or quantity determined by count of tears or breaks in the continuity or configuration of the internal elastic lamina (IEL) of the abdominal aorta and iliac arteries, that is, the distal segment of the descending aorta and the large arteries that originate from it. 2014-08-18T15:35:18Z number of RIEL in abdominal aorta and iliac arteries jsmith CMO:0002562 VT:0010639 clinical_measurement_ontology