A multidetector tomography protocol for follow-up of endovascular aortic aneurysm repair
| Autor: | Roberto de Moraes Bastos, Roberto Blasbalg, Alvaro Razuk Filho, Walter Khegan Karakhanian, Roberto Augusto Caffaro, Antonio José da Rocha |
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| Rok vydání: | 2011 |
| Předmět: |
Male
Leak medicine.medical_specialty Endoleak Contrast Media Radiation Dosage medicine.artery Multidetector computed tomography Multidetector Computed Tomography medicine Humans cardiovascular diseases Aneurism Aorta Aged Aged 80 and over lcsh:R5-920 Aortic aneurysm repair Radiation business.industry Radiation dose Follow up studies General Medicine Middle Aged Clinical Science Aortic Aneurysm cardiovascular system Female Stents Tomography Radiology business lcsh:Medicine (General) Multidetector Tomography Arterial phase Follow-Up Studies |
| Zdroj: | Clinics Clinics; v. 66 n. 12 (2011); 2025-2029 Clinics; Vol. 66 Núm. 12 (2011); 2025-2029 Clinics; Vol. 66 No. 12 (2011); 2025-2029 Universidade de São Paulo (USP) instacron:USP Clinics, Vol 66, Iss 12, Pp 2025-2029 (2011) Clinics, Volume: 66, Issue: 12, Pages: 2025-2029, Published: 2011 |
| ISSN: | 1980-5322 1807-5932 |
| Popis: | 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 post-contrast 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. |
| Databáze: | OpenAIRE |
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