MR imaging Evaluation of an Interstitial Focused Ultrasound Probe used in Robotically Assisted Brain Ablation Procedures.
Authors: Tarasek M, Fiveland E, Bhushan C, Ghoshal G, Heffter T, Gandomi K, Carvalho PA, Nycz C, Maiette T, Campwala Z, Jeannotte E, Staudt M, Burdette EC, Fischer G, Pilitsis J, Yeo D
No abstract available
Introduction
Purpose
Thermal ablation
Study Objective
To evaluate MR imaging compatibility and optimize MR thermometry protocols for an interstitial MR-guided FUS probe used in robotically assisted brain ablation
Animal model / Human subject
Agar phantom
MRI or image guidance method
MRI guided
Outcomes and Safety
Summary of Outcomes
Parallel probe orientation reduced delta B0 artifacts and improved SNR. Single echo SPGR had highest temp precision, while fast SPGR methods improved volume coverage
Safety-related matter
The paper contains no mention of safety concerns or adverse effects.
Brain Region
Ultrasound Parameters
Ultrasound instrument
Catheter based iMRgFUS probe; multielement 10 mm long tubular piezoelectric transducer
FUS Mode
continuous
Duration of a single FUS session
10 s
Focal Characteristics
Focal depth: None; Focal length: None; Aperture size: None
Treatment frequency
Multiple
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