American Journal of Roentgenology, Journal Year: 2024, Volume and Issue: 222(5)
Published: May 1, 2024
Language: Английский
Radiology, Journal Year: 2024, Volume and Issue: 312(3)
Published: Sept. 1, 2024
Background Traditional energy-integrating detector CT has limited utility in accurately quantifying liver fat due to protocol-induced value shifts, but this limitation can be addressed by using photon-counting (PCD) CT, which allows for a standardized value. Purpose To develop and validate universal MRI conversion formula enhance quantification accuracy across various PCD protocols relative proton density fraction (PDFF). Materials Methods In prospective study, the feasibility of was evaluated phantoms with nominal fractions. Five hundred asymptomatic participants 157 suspected metabolic dysfunction-associated steatotic disease (MASLD) were enrolled between September 2023 March 2024. Participants randomly assigned six groups different regarding tube voltage (90, 120, or 140 kVp) radiation dose (standard low). Of 120-kVp standard-dose group, 51% (53 104) designated as training cohort, rest group serving validation cohort. A derived from cohort estimate CT-derived (CTFF). CTFF agreement PDFF its error subcohorts stratified voltage, dose, body mass index, MASLD The factors influencing further evaluated. Results phantoms, showed excellent (intraclass correlation coefficient, 0.98; mean bias, 0.2%). total 412 122 included. follows: (%) = -0.58 · (HU) + 43.1. Across all comparisons, demonstrated (mean bias values < 1%). not influenced PDFF. Agreement also found -0.2%). Conclusion Standardized robust remarkable may serve precise alternative quantification. © RSNA, 2024
Language: Английский
Citations
5
Abdominal Radiology, Journal Year: 2024, Volume and Issue: 49(9), P. 3261 - 3273
Published: May 20, 2024
Language: Английский
Citations
3
Investigative Radiology, Journal Year: 2025, Volume and Issue: unknown
Published: March 26, 2025
Abstract Photon-counting detector computed tomography (PCD-CT) is a breakthrough innovation over conventional single-energy and dual-energy CT equipped with energy-integrating detectors (EID). Because of increased spatial resolution improved material differentiation, PCD-CT aims at improving the diagnosis various abdominal conditions. This technology offers several advantages EID-based scanners, including higher contrast resolution, reduced electronic noise, low radiation dose exposure. Additionally, because spectral information generated within detectors, possibility routine examinations refines decomposition through available multienergy imaging, further enhancing tissue characterization image contrast. With most scientific literature focused on cardiovascular applications, imaging an open field for technical clinical research in PCD-CT. review to provide general overview principles PCD-CT, its applications summarize main findings liver, pancreas, adrenals, genitourinary system, bowel, peritoneum, vessels. We will also highlight pros cons observed practice offer insights into potential future developments imaging.
Language: Английский
Citations
0
Academic Radiology, Journal Year: 2024, Volume and Issue: 31(10), P. 4119 - 4128
Published: May 20, 2024
Language: Английский
Citations
3
American Journal of Roentgenology, Journal Year: 2024, Volume and Issue: 224(1)
Published: Dec. 4, 2024
Language: Английский
Citations
0
American Journal of Roentgenology, Journal Year: 2024, Volume and Issue: 222(5)
Published: Feb. 21, 2024
This Editorial Comment discusses the following AJR article: Consistency of Monoenergetic Attenuation Measurements for a Clinical Dual-Source Photon-Counting Detector CT System Across Scanning Paradigms: A Phantom Study.
Language: Английский
Citations
0
American Journal of Roentgenology, Journal Year: 2024, Volume and Issue: 222(5)
Published: May 1, 2024
Language: Английский
Citations
0