Influence of patient motion on quantitative accuracy in cardiac ¹⁵O-water positron emission tomography.

ABSTRACT:

Background

Patient motion is a common problem during cardiac PET. The purpose of the present study was to investigate to what extent motions influence the quantitative accuracy of cardiac ¹⁵O-water PET/CT and to develop a method for automated motion detection.

Method

Frequency and magnitude of motion was assessed visually using data from 50 clinical ¹⁵O-water PET/CT scans. Simulations of 4 types of motions with amplitude of 5 to 20 mm were performed based on data from 10 scans. An automated motion detection algorithm was evaluated on clinical and simulated motion data. MBF and PTF of all simulated scans were compared to the original scan used as reference.

Results

Patient motion was detected in 68% of clinical cases by visual inspection. All obse

SUBMITTER: Nordstrom J 

PROVIDER: S-EPMC9345798 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature