Optimized Protocol for Fast CT Angiography of Lower Limbs Using 160-Row Detector.
| Autor: | Tachibana A; From the *Department of Diagnostic Imaging, Hospital Israelita Albert Einstein; †Department of Vascular Surgery, Faculdade de Medicina da Universidade de São Paulo; and ‡Division of Vascular and Endovascular Surgery, Hospital Israelita Albert Einstein, São Paulo, Brazil., Dias BO, Failla BB, Dos Santos Silva C, Belczak SQ, Mendes CA, Fioranelli A, Wolosker N |
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| Jazyk: | angličtina |
| Zdroj: | Journal of computer assisted tomography [J Comput Assist Tomogr] 2016 Nov/Dec; Vol. 40 (6), pp. 953-957. |
| DOI: | 10.1097/RCT.0000000000000459 |
| Abstrakt: | Objective: We proposed and tested a novel acquisition protocol for optimizing a fast computed tomography angiography using a 160-row detector scanner using a longer contrast injection time coupled with multiphasic rate of injection. Methods: A prospective randomized study was performed to compare image quality, contrast enhancement, and radiation dose in 2 groups (a fast acquisition and a widely accepted slow acquisition). Results: There was no difference between groups regarding image quality, noise, and diagnostic performance, but we evidenced a trend to higher radiation dose for the fast acquisition protocol. Conclusions: An optimized protocol for performing a fast acquisition computed tomography angiography of lower limbs is feasible, has sufficient diagnostic quality, and can be used in selected patients who would benefit from a short-time scan. |
| Databáze: | MEDLINE |
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