| Autor: |
Marton Berczeli, Ponraj Chinnadurai, Juan Carlos Ramirez-Giraldo, Zsolt Garami, Alan B. Lumsden, Marvin D. Atkins, Su Min Chang |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
The Annals of Thoracic Surgery. 113:1685-1691 |
| ISSN: |
0003-4975 |
| DOI: |
10.1016/j.athoracsur.2021.11.054 |
| Popis: |
Better time-resolved imaging of stent grafts in the ascending aorta and arch accounting for cardiac motion is necessary to understand device-related complications and endoleaks. This report describes dynamic time-resolved computed tomographic angiography (d-CTA) and its combination with electrocardiography gating (d-gated CTA) to image stent grafts in the ascending aorta and to characterize endoleaks more clearly.d-CTA involves multiple scans acquired at different time points along the contrast enhancement curve. d-Gated CTA involves concomitant electrocardiography gating in a predefined cardiac phase minimizing motion-induced artifacts.This report illustrates the utility of d-CTA and d-gated CTA in 2 clinical cases. d-CTA demonstrated a type 1A endoleak in a patient with an aortic arch aneurysm treated with total arch debranching and a thoracic stent graft. d-gated CTA demonstrated a type 1A endoleak in a patient with an ascending aortic pseudoaneurysm treated with aortic cuff placement.Dynamic, cardiac-gated CTA enables time-resolved angiographic imaging of the ascending aorta and arch without any cardiac motion-related artifacts. Such advanced imaging techniques help with better characterization of endoleaks after stent graft deployment in the ascending aorta and arch. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
