Motion-robust, multi-slice, real-time MR thermometry for MR-guided thermal therapy in abdominal organs.

ABSTRACT:

Purpose

To develop an effective and practical reconstruction pipeline to achieve motion-robust, multi-slice, real-time MR thermometry for monitoring thermal therapy in abdominal organs.

Methods

The application includes a fast spiral magnetic resonance imaging (MRI) pulse sequence and a real-time reconstruction pipeline based on multi-baseline proton resonance frequency shift (PRFS) method with visualization of temperature imaging. The pipeline supports multi-slice acquisition with minimal reconstruction lag. Simulations with a virtual motion phantom were performed to investigate the influence of the number of baselines and respiratory rate on the accuracy of temperature measurement. Phantom experiments with ultrasound heating were performed using a custom-made motion phantom

SUBMITTER: Kim K 

PROVIDER: S-EPMC10269483 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature