Background: The personalized, free-breathing, heart rate-dependent computed tomography angiography (CTA) protocol can significantly reduce the utilization of contrast medium (CM). This proves especially beneficial for patients with chronic obstructive pulmonary disease (COPD) undergoing coronary artery CTA examinations.
Objective: The aim of this study was to evaluate the feasibility of a personalized CT scanning protocol that was tailored to patients' heart rate and free-breathing for coronary CTA of patients with COPD.
Aim: The study aimed, using invasive coronary angiography (ICA) as the gold standard, to investigate the noninvasive diagnostic value of flow reserve fraction derived from coronary computed tomography angiography (CCTA) with low-dose contrast agent in coronary artery disease (CAD).
Methods: A total of 163 patients with clinical symptoms related to CAD were enrolled between 1 January 2022 and 30 January 2023. The patients received CCTA with a low dose of contrast agent to rule out CAD.
Background: Computed tomography angiography (CTA) is a reliable, non-invasive screening method for diagnosing panvascular disease. By using low contrast agent volume, CTA imaging enables one-stop multi-organ scanning, thereby minimizing the potential risk of contrast-induced nephropathy in patients with impaired renal function.
Purpose: To evaluate the feasibility of one-stop CTA following a heart rate (HR)-based protocol using a low volume of contrast medium (CM) for examination of the coronary, carotid and cerebrovascular arteries.