Morphological aspects of mural thrombi deposition residual lumen route in infrarenal abdominal aorta aneurisms

Morfologia da deposição de trombos murais: trajeto da luz residual em aneurismas de aorta abdominal infra-renal

Thiago Adriano Silva Guimarães Guilherme Nobrega Garcia Marcelo Bellini Dalio Matheus Bredarioli Cleber Aparecido Pita Bezerra Takachi Moriya About the authors

PURPOSE: To assess the most frequent deposition site of mural thrombi in infrarenal abdominal aorta aneurisms, as well as the route of the residual lumen. METHODS: Assessment of CT scan images from 100 patients presenting asymptomatic abdominal aorta aneurism, and followed at HC-FMRP-USP. RESULTS: In 53% of the cases the mural thrombus was deposited on the anterior wall; from these, in 22%, the residual lumen described a predominantly right sided route; in 22%, a left sided route; on the mid line in 5%; and crossing over the mid line in 1%. In 23%, the deposition of thrombi was concentric. In 11% it occured on the posterior wall; from these, in 5%, the route of the residual anterior lumen was predominantly right sided; in 5%, left sided; and crossed over the mid line in 1%. In 13% complex morfological deposition patterns were found. CONCLUSION: Mural thrombi formation was predominantly found on the anterior wall of the aneurismatic mass, with the route of the residual lumen projecting towards the posterior wall.

Abdominal Aorta Aneurisms; Thrombi and CT Scan


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