biostudies-literatureUnknown43(12)Araki S<h4>Objectives</h4>This study aimed to evaluate the feasibility of low-tube-potential ultra-high-resolution (UHR) coronary CT angiography (CCTA) using photon-counting detector CT (PCD-CT) in comparison to low-tube-potential CCTA using energy-integrating detector CT (EID-CT), with a specific focus on the evaluation of coronary stents.<h4>Materials and methods</h4>This retrospective study included 54 patients (88 stents) who underwent CCTA in UHR mode on PCD-CT at low tube potential (PCD_UHR-low; 27 patients [45 stents]) or CCTA with EID-CT at low tube potential (EID-low; 27 patients [43 stents]). The EID-low cohort was selected by propensity score matching to the PCD_UHR-low cohort. Image quality of in-stent lumen was assessed using a 4-point Likert scale, with a score oJapanese journal of radiology1981-1992https://www.ebi.ac.uk/biostudies/studies/S-EPMC12647213biostudies-literatureLow-tube-potential ultra-high-resolution coronary CTA with photon-counting detector CT for stent evaluation: a comparative feasibility study.PMC12647213Ichikawa YKitagawa KAraki SOkabe STakafuji MSakuma HNakamura SfalseLow-tube-potential ultra-high-resolution coronary CTA with photon-counting detector CT for stent evaluation: a comparative feasibility study.<h4>Objectives</h4>This study aimed to evaluate the feasibility of low-tube-potential ultra-high-resolution (UHR) coronary CT angiography (CCTA) using photon-counting detector CT (PCD-CT) in comparison to low-tube-potential CCTA using energy-integrating detector CT (EID-CT), with a specific focus on the evaluation of coronary stents.<h4>Materials and methods</h4>This retrospective study included 54 patients (88 stents) who underwent CCTA in UHR mode on PCD-CT at low tube potential (PCD_UHR-low; 27 patients [45 stents]) or CCTA with EID-CT at low tube potential (EID-low; 27 patients [43 stents]). The EID-low cohort was selected by propensity score matching to the PCD_UHR-low cohort. Image quality of in-stent lumen was assessed using a 4-point Likert scale, with a score o2025-01-01T00:00:00Z2025 Dec2026-06-05T16:45:55.643Z2026-05-18T03:13:15.358ZS-EPMC126472134078224210.1007/s11604-025-01846-x