Image quality and clinical usefulness of automatic tube current modulation technology in female chest computed tomography screening.

ABSTRACT: The study was aimed to evaluate the image quality and radiation dose during female chest computed tomography (CT) screening using organ-based tube current modulation technology X-ray combined applications to reduce exposure (XCARE).Five hundred sixty female individuals undergoing chest CT scan were prospectively enrolled and divided into 4 groups based on body mass index (BMI). Then they were randomly and equally divided into control and experimental subgroup and respectively accepted conventional low-dose and XCARE technology spiral CT scan with same parameters. Signal-to-noise ratio and contrast-to-noise ratio were calculated. The quality of the images was evaluated by 2 radiologists using a 5-point scale.Among experimental subgroups of the 4 BMI groups, Signal-to-noise ratios, CT dose index of volume, dose-length product, effective dose, and contrast-to-noise ratio all displayed significant differences, as well as in control subgroups (P??.05), while BMI was significantly associated with increased CT dose index of volume (P?

SUBMITTER: Li C 

PROVIDER: S-EPMC7437791 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature