MRI-Guided High Intensity Focused Ultrasound of Liver and Kidney

11/21/2020
by   Baudouin Denis de Senneville, et al.
0

High Intensity Focused Ultrasound (HIFU) can be used to achieve a local temperature increase deep inside the human body in a non-invasive way. MRI guidance of the procedure allows in situ target definition. In addition, MRI can be used to provide continuous temperature mapping during HIFU for spatial and temporal control of the heating procedure and prediction of the final lesion based on the received thermal dose. Temperature mapping of mobile organs as kidney and liver is challenging, as well as real-time processing methods for feedback control of the HIFU procedure. In this paper, recent technological advances are reviewed in MR temperature mapping of these organs, in motion compensation of the HIFU beam, in intercostal HIFU sonication, and in volumetric ablation and feedback control strategies. Recent pre-clinical studies have demonstrated the feasibility of each of these novel methods. The perspectives to translate those advances into the clinic are addressed. It can be concluded that MR guided HIFU for ablation in liver and kidney appears feasible but requires further work on integration of technologically advanced methods.

READ FULL TEXT

page 23

page 24

page 25

page 26

page 27

11/10/2020

Deep correction of breathing-related artifacts in MR-thermometry

Real-time MR-imaging has been clinically adapted for monitoring thermal ...
02/27/2022

Feasibility of Material Decomposition-based Photon-counting CT Thermometry

Over the past decades, thermal ablation procedures such as high intensit...
10/23/2019

Learning Multiparametric Biomarkers for Assessing MR-Guided Focused Ultrasound Treatments Using Volume-Conserving Registration

Noninvasive MR-guided focused ultrasound (MRgFUS) treatments are promisi...
08/19/2021

Can a Tesla Turbine be Utilised as a Non-Magnetic Actuator for MRI-Guided Robotic Interventions?

This paper introduces a new type of nonmagnetic actuator for MRI interve...
07/21/2022

Strategising template-guided needle placement for MR-targeted prostate biopsy

Clinically significant prostate cancer has a better chance to be sampled...