1. Wide-detector axial CT versus 4 cm detector helical CT for transcatheter aortic valve replacement: iodine dose, radiation, and image quality.
- Author
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Shuman WP, Green DE, Busey JM, Ramos MM, Branch KR, Koprowicz KM, and Kanal KM
- Subjects
- Aged, Female, Humans, Male, Retrospective Studies, Signal-To-Noise Ratio, Contrast Media administration & dosage, Image Enhancement, Iodine administration & dosage, Radiation Dosage, Tomography, Spiral Computed methods, Tomography, X-Ray Computed methods, Transcatheter Aortic Valve Replacement
- Abstract
Purpose: This study aims to compare transcatheter aortic valve replacement (TAVR) planning on 16 cm wide-detector computed tomography (CT) to TAVR planning on 4 cm detector CT., Materials and Methods: A total of 36 patients who had TAVR planning axial CT on a wide-detector scanner (protocol 1) were compared to 36 patients who had helical 4 cm detector CT (protocol 2)., Results: Vascular attenuation was greater for protocol 1, but image noise, contrast-to-noise ratio, and signal-to-noise ratio were the same. Radiation dose was lower and iodine dose was less for protocol 1., Conclusion: Protocol 1 had greater vascular attenuation and similar image quality but lower radiation and less iodine compared to protocol 2., (Copyright © 2016 Elsevier Inc. All rights reserved.)
- Published
- 2016
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