Low-Dose Radiation Advances in Coronary Computed Tomography Angiography in the Diagnosis of Coronary Artery Disease.

Current Cardiology Reviews
Caryl Elizabeth Richards, Daniel Rhys Obaid

Abstract

Coronary computed tomography angiography (CCTA) is now widely used in the diagnosis of coronary artery disease since it is a rapid, minimally invasive test with a diagnostic accuracy comparable to coronary angiography. However, to meet demands for increasing spatial and temporal resolution, higher x-ray radiation doses are required to circumvent the resulting increase in image noise. Exposure to high doses of ionizing radiation with CT imaging is a major health concern due to the potential risk of radiation-associated malignancy. Given its increasing use, a number of dose saving algorithms have been implemented to CCTA to minimize radiation exposure to "as low as reasonably achievable (ALARA)" without compromising diagnostic image quality. The purpose of this review is to outline the most recent advances and current status of dose saving techniques in CCTA. PubMed, Medline, EMBASE and Scholar databases were searched to identify feasibility studies, clinical trials, and technology guidelines on the technical advances in CT scanner hardware and reconstruction software. Sub-millisievert (mSv) radiation doses have been reported for CCTA due to a combination of strategies such as prospective electrocardiogram-gating, high-pitch heli...Continue Reading

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Citations

Dec 29, 2019·Medical Physics·Madan M RehaniHabib Zaidi
Sep 9, 2020·Journal of the American Heart Association·Min Soo ChoDuk-Woo Park
Sep 16, 2020·La Radiologia medica·Nicolò SchicchiAndrea Giovagnoni
Jul 31, 2021·American Journal of Preventive Cardiology·Harold E BaysPeter P Toth
Aug 14, 2021·Emergency Radiology·Ahmed Abdel Khalek Abdel Razek, Dalia Fahmy
Sep 5, 2021·Journal of Medical Imaging and Radiation Sciences·Muhammad Usman Aziz, Satinder Singh
Oct 16, 2021·Radiographics : a Review Publication of the Radiological Society of North America, Inc·Anum AslamSmita Patel

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Software Mentioned

iDose4
DSCT
AIDR3D
SAS
Advanced Model Iterative Reconstruction ( ADMIRE )
ADMIRE
ATVS

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