A multidetector tomography protocol for follow-up of endovascular aortic aneurysm repair
DOI:
https://doi.org/10.1590/S1807-59322011001200005Keywords:
Multidetector Tomography, Aneurism, Aorta, Endoleak, RadiationAbstract
OBJECTIVE: The purpose of this study was to improve the use of 64-channel multidetector computed tomography using lower doses of ionizing radiation during follow-up procedures in a series of patients with endovascular aortic aneurysm repair. METHODS: Thirty patients receiving 5 to 29 months of follow-up after endovascular aortic aneurysm repair were analyzed using a 64-channel multidetector computed tomography device by an exam that included pre-and postcontrast with both arterial and venous phases. Leak presence and type were classified based on the exam phase. RESULTS: Endoleaks were identified in 8/30 of cases; the endoleaks in 3/8 of these cases were not visible in the arterial phases of the exams. CONCLUSION: The authors conclude that multidetector computed tomography with pre-contrast and venous phases should be a part of the ongoing follow-up of patients undergoing endovascular aortic aneurysm repair. The arterial phase can be excluded when the aneurism is stable or regresses. These findings permit a lower radiation dose without jeopardizing the correct diagnosis of an endoleak.Downloads
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Published
2011-01-01
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Section
Clinical Sciences
How to Cite
A multidetector tomography protocol for follow-up of endovascular aortic aneurysm repair . (2011). Clinics, 66(12), 2025-2029. https://doi.org/10.1590/S1807-59322011001200005