Novel multi-dimensional modelling for surgical planning of acute aortic dissection type A based on computed tomography scan

European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery
Abdullrazak HossienPeyman Sardari Nia

Abstract

Acute type A aortic dissection (TAAD) is a life-threatening emergency and requires immediate surgical intervention. We propose a novel finite element multi-dimensional modelling (FE-MDM) technique to identify aortic tears preoperatively to aid surgical preplanning. Thirty-two patients with TAAD were included in this retrospective study. Computed tomography (CT) scans were imported using the segmentation software and reconstruction resulted in modelling of single TAAD components: aortic wall, false lumen, true lumen, gap in the flap and blood in both lumens. CT scans were processed by interpreters who were blinded to the clinical data and then were compared with operative findings. The models were assessed and compared regarding localization and size of the entry tear with the intraoperative findings. Image set data were retrieved from CT scans. Surgical inspection confirmed the localization of the tear obtained by the model in all patients with a 100% chance prediction (P < 0.0001) in all patients. With the simulation of the guided-cannulation, it was possible to place the cannula in the ascending aorta in 100% of patients (P < 0.0001 vs surgery). Using the virtual volume model, the chance of inserting into the false lumen was ...Continue Reading

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Citations

Dec 24, 2015·The Annals of Thoracic Surgery·Abdullrazak HossienSaeed Ashraf
Jun 3, 2016·Journal of Cardiac Surgery·Abdullrazak HossienRüdiger Autschbach

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