Ultra-low-dose coronary computed tomography angiography using photon-counting detector computed tomography.

ABSTRACT:

Aims

Photon-counting detector computed tomography (PCD-CT), which allows the exclusion of electronic noise, shows promise for significant dose reduction in coronary CT angiography (CCTA). This study aimed to assess the radiation dose and image quality of CCTA using PCD-CT, combined with high-pitch helical scanning and an ultra-low tube potential of 70 kVp, and investigate the effect of a sharp kernel on image quality and stenosis assessment in such an ultra-low-dose CCTA setting.

Methods and results

Forty patients (65% male) with stable heart rates and no prior coronary interventions were included. Data on CT dose index volume (CTDIvol) and dose-length product (DLP) were collected, with effective radiation dose estimated using a conversion factor of 0.014. Images were recons

SUBMITTER: Araki S 

PROVIDER: S-EPMC11631184 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature