Open AccessLow-Dose Radiation Advances in Coronary Computed Tomography Angiography in the Diagnosis of Coronary Artery Disease
Author(s) -
Caryl E Richards,
Daniel R. Obaid
Publication year - 2019
Publication title -
current cardiology reviews
Language(s) - English
Resource type - Journals
eISSN - 1875-6557
pISSN - 1573-403X
DOI - 10.2174/1573403x15666190222163737
Subject(s) - medicine , coronary artery disease , radiology , image quality , ionizing radiation , angiography , medical physics , artificial intelligence , irradiation , physics , computer science , nuclear physics , image (mathematics)
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.