PCCT bests conventional CT for chest imaging

Photon-counting CT (PCCT) improves the contrast-to-noise ratio of vascular structures imaged on chest CT when compared with conventional CT -- and reduces radiation dose, according to research presented November 26 at the RSNA meeting."When compared to conventional … CT scanners, the new technology of [PCCT] will improve quality metrics in contrast-enhanced chest CT by delivering higher contrast-to-noise ratio and at the same time reducing radiation exposure of the patients," said presenter Pooyan Khalighinejad, MD, of the University of Texas Southwestern Medical Center in Dallas. Khalighinejad's group compared PCCT to energy-integrating detector CT (EID-CT) via a study that included 30 patients referred for routine contrast-enhanced CT, all of whom underwent a PCCT exam and had undergone conventional CT imaging within the past two years (median interval between the two exams, 123 days). The investigators assessed the two techniques' radiation dose (in the lung parenchyma, the thoracic aorta, the main pulmonary artery, the thyroid, the latissimus dorsi, and in mediastinal fat), image noise, and contrast-to-noise ratios. They also collected body mass index (BMI), sex, and age data for each patient and tracked CT dose index (CTDI) and dose length product (DLP). They reported the following: .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px; overflow:hidden;padding:10p...
Source: AuntMinnie.com Headlines - Category: Radiology Authors: Tags: Subspecialties Resources CT Chest Radiology 2023 Source Type: news