3D printed non-uniform anthropomorphic phantoms for quantitative SPECT.

ABSTRACT:

Background

A 3D printing grid-based method was developed to construct anthropomorphic phantoms with non-uniform activity distributions, to be used for evaluation of quantitative SPECT images. The aims were to characterize the grid-based method and to evaluate its capability to provide realistically shaped phantoms with non-uniform activity distributions.

Methods

Characterization of the grid structures was performed by printing grid-filled spheres. Evaluation was performed by micro-CT imaging to investigate the printing accuracy and by studying the modulation contrast ([Formula: see text]) in SPECT images for ¹⁷⁷Lu and ^99mTc as a function of the grid fillable-volume fraction (FVF) determined from weighing. The grid-based technique was applied for the con

SUBMITTER: Jessen L 

PROVIDER: S-EPMC10803701 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature