Aortic valve imaging using ¹⁸F-sodium fluoride: impact of triple motion correction.

ABSTRACT:

Background

Current ¹⁸F-NaF assessments of aortic valve microcalcification using ¹⁸F-NaF PET/CT are based on evaluations of end-diastolic or cardiac motion-corrected (ECG-MC) images, which are affected by both patient and respiratory motion. We aimed to test the impact of employing a triple motion correction technique (3 × MC), including cardiorespiratory and gross patient motion, on quantitative and qualitative measurements.

Materials and methods

Fourteen patients with aortic stenosis underwent two repeat 30-min PET aortic valve scans within (29 ± 24) days. We considered three different image reconstruction protocols; an end-diastolic reconstruction protocol (standard) utilizing 25% of the acquired data, an ECG-gated (four ECG gates) reconstruction (ECG

SUBMITTER: Lassen ML 

PROVIDER: S-EPMC8800969 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature