Effect of quantitative values on shortened acquisition duration in brain tumor ¹¹C-methionine PET/CT.

ABSTRACT:

Background

The amount of signal decreases when the acquisition duration is shortened. However, it is not clear how this affects the quantitative values. This study aims to clarify the effect of acquisition time shortening in brain tumor PET/CT using ¹¹C-methionine on the quantitative values.

Method

This study was a retrospective analysis of 30 patients who underwent clinical ¹¹C-methionine PET/CT examination. PET images were acquired in list mode for 10 min. PET images of acquisition duration from 1 to 10 min with 1-min step were reconstructed. We examined the effect on the quantitative values of acquisition duration. We placed a volume of interest to include the entire tumor and regions of interest in the shape of a large crescent in the contralateral

SUBMITTER: Morimoto M 

PROVIDER: S-EPMC8012475 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature