Why the study?
The study evaluated image quality and radiation dose exposure of a low-kV and low-volume contrast medium CTA protocol compared with a standard protocol for TAVI planning.
Does a low-kV and low-contrast-medium CTA protocol with IMR reconstruction maintain image quality and reduce radiation dose compared to a standard CTA protocol in patients undergoing TAVI planning?
Population
60 patients examined with 256-row MDCT for TAVI planning
Comparison
80-kV protocol with 60 mL CM and IMR vs 100-kV protocol with 80 mL CM and iDose4
Design
Comparative cohort study
Authors
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Low-kV low-volume CTA with IMR yields adequate TAVI images at reduced dose; leaves open confirmation in larger randomized trials.
Does a low-kV and low-contrast-medium CTA protocol with IMR reconstruction maintain image quality and reduce radiation dose compared to a standard CTA protocol in patients undergoing TAVI planning?
A low-kV, low-contrast CTA protocol with IMR reconstruction significantly reduces radiation exposure by 56% while maintaining diagnostic image quality for TAVI planning.
Ippolito et al. (2020) studied this question.
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