Motion compensated reconstruction improves image quality and interpretability of dual-layer coronary CT angiography.

Objectives: Reducing motion artifacts in coronary computed tomography angiography (CCTA) is essential for accurate coronary artery disease assessment. We evaluated the clinical performance of a motion-compensated reconstruction (MCR) using subjective image quality (SIQ) and interpretability of CCTA at varying heart rates (HR).

Materials And Methods: We retrospectively identified 150 patients, grouped by HR (≤ 60, 60-69, ≥ 70 bpm, n = 50 each), referred for prospective ECG-gated CCTA on a spectral dual-layer CT.

CT derived fractional flow reserve: Part 1 - Comprehensive review of methodologies.

Advancements in cardiac computed tomography angiography (CCTA) have enabled the extraction of physiological data from an anatomy-based imaging modality. This review outlines the key methodologies for deriving fractional flow reserve (FFR) from CCTA, with a focus on two primary methods: 1) computational fluid dynamics-based FFR (CT-FFR) and 2) plaque-derived ischemia assessment using artificial intelligence and quantitative plaque metrics. These techniques have expanded the role of CCTA beyond anatomical assessment, allowing for concurrent evaluation of coronary physiology without the need for invasive testing.

Highlights 2024.

publishes research, technical developments, and reviews related to cardiac, vascular, and thoracic imaging. The current review article, led by the trainee editorial board, highlights the most impactful articles published in the journal between November 2023 and October 2024. The review encompasses various aspects of cardiac, vascular, and thoracic imaging related to coronary artery disease, cardiac MRI, valvular imaging, congenital and inherited heart diseases, thoracic imaging, lung cancer, artificial intelligence, and health services research.

A practical approach to quality improvement in medium sized radiology departments.

Quality maintenance and improvement in radiology departments is a dynamic process, driven in part by rapid technological advancements. The setting for this article is an academic radiology department with 29 staff radiologists. With limited resources and a bottom-up strategy, we have successfully reduced radiation dose with the introduction of iterative reconstruction techniques and implemented a 'walk-in' CT service, allowing patients to undergo imaging without needing a prior appointment.