Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4221481 | Clinical Imaging | 2015 | 6 Pages |
Abstract
The assessment of myocardial perfusion using single-energy (SE) imaging is influenced by beam-hardening artifacts (BHA). We sought to explore the ability of dual-energy (DE) imaging to attenuate the presence of BHA. Myocardial signal density (SD) was evaluated in 2240 myocardial segments (112 for each energy level) and in 320 American Heart Association segments among the SE group. Compared to DE reconstructions at the best energy level, SE acquisitions showed no significant differences overall regarding myocardial SD or signal-to-noise ratio. The segments most commonly affected by BHA showed significantly lower myocardial SD at the lowest energy levels, progressively normalizing at higher energy levels.
Keywords
Related Topics
Health Sciences
Medicine and Dentistry
Radiology and Imaging
Authors
Gaston A. Rodriguez-Granillo, Patricia Carrascosa, Silvina Cipriano, Macarena de Zan, Alejandro Deviggiano, Carlos Capunay, Ricardo C. Cury,