Accuracy of 3D real-time MRI temperature mapping in gel phantoms during microwave heating.

ABSTRACT:

Background

Interventional magnetic resonance imaging (MRI) can provide a comprehensive setting for microwave ablation of tumors with real-time monitoring of the energy delivery using MRI-based temperature mapping. The purpose of this study was to quantify the accuracy of three-dimensional (3D) real-time MRI temperature mapping during microwave heating in vitro by comparing MRI thermometry data to reference data measured by fiber-optical thermometry.

Methods

Nine phantom experiments were evaluated in agar-based gel phantoms using an in-room MR-conditional microwave system and MRI thermometry. MRI measurements were performed for 700 s (25 slices; temporal resolution 2 s). The temperature was monitored with two fiber-optical temperature sensors approximately 5 mm and 10 mm dist

SUBMITTER: Dietrich O 

PROVIDER: S-EPMC11324620 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature