Motion modeling from 4D MR images of liver simulating phantom.

ABSTRACT:

Background and purpose

A novel method of retrospective liver modeling was developed based on four-dimensional magnetic resonance (4D-MR) images. The 4D-MR images will be utilized in generation of the subject-specific deformable liver model to be used in radiotherapy planning (RTP). The purpose of this study was to test and validate the developed 4D-magnetic resonance imaging (MRI) method with extensive phantom tests. We also aimed to build a motion model with image registration methods from liver simulating phantom images.

Materials and methods

A deformable phantom was constructed by combining deformable tissue-equivalent material and a programmable 4D CIRS-platform. The phantom was imaged in 1.5 T MRI scanner with T2-weighted 4D SSFSE and T1-weighted Ax dual-echo Dixon SPGR

SUBMITTER: Kavaluus H 

PROVIDER: S-EPMC9278689 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature