1. Worldwide Variation in the Use of Nuclear Cardiology Camera Technology, Reconstruction Software, and Imaging Protocols
- Author
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Hirschfeld, CB, Mercuri, M, Pascual, TNB, Karthikeyan, G, Vitola, JV, Mahmarian, JJ, Better, N, Bouyoucef, SE, Bom, HHS, Lele, V, Magboo, VPC, Alexanderson, E, Allam, AH, Al-Mallah, MH, Dorbala, S, Flotats, A, Jerome, S, Kaufmann, PA, Luxenburg, O, Shaw, LJ, Underwood, SR, Rehani, MM, Paez, D, Dondi, M, and Einstein, AJ
- Subjects
SPECT ,camera technology ,  ,myocardial perfusion scintigraphy ,radiation dose reduction ,nuclear cardiology protocols - Abstract
OBJECTIVES This study sought to describe worldwide variations in the use of myocardial perfusion imaging hardware, software, and imaging protocols and their impact on radiation effective dose (ED). BACKGROUND Concerns about long-term effects of ionizing radiation have prompted efforts to identify strategies for dose optimization in myocardial perfusion scintigraphy. Studies have increasingly shown opportunities for dose reduction using newer technologies and optimized protocols. METHODS Data were submitted voluntarily to the INCAPS (International Atomic Energy Agency Nuclear Cardiology Protocols Study) registry, a multinational, cross-sectional study comprising 7,911 imaging studies from 308 labs in 65 countries. The study compared regional use of camera technologies, advanced post-processing software, and protocol characteristics and analyzed the influence of each factor on ED. RESULTS Cadmium-zinc-telluride and positron emission tomography (PET) cameras were used in 10% (regional range 0% to 26%) and 6% (regional range 0% to 17%) of studies worldwide. Attenuation correction was used in 26% of cases (range 10% to 57%), and advanced post-processing software was used in 38% of cases (range 26% to 64%). Stress-first single-photon emission computed tomography (SPECT) imaging comprised nearly 20% of cases from all world regions, except North America, where it was used in just 7% of cases. Factors associated with lower ED and odds ratio for achieving radiation dose
- Published
- 2021