Development of a Computerized 4-D MRI Phantom for Liver Motion Study.

ABSTRACT:

Purpose

To develop a 4-dimensional computerized magnetic resonance imaging phantom with image textures extracted from real patient scans for liver motion studies.

Methods

The proposed phantom was developed based on the current version of 4-dimensional extended cardiac-torso computerized phantom and a clinical magnetic resonance scan. Initially, the extended cardiac-torso phantom was voxelized in abdominal-chest region at the end of exhalation phase. Structures/tissues were classified into 4 categories: (1) Seven key textured organs, including liver, gallbladder, spleen, stomach, heart, kidneys, and pancreas, were mapped from a clinical T1-weighted liver magnetic resonance scan using deformable registration. (2) Large textured soft tissue volumes were simulated via an iterati

SUBMITTER: Wang C 

PROVIDER: S-EPMC5575982 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature