Document Detail


Rapid motion correction in MR-guided high-intensity focused ultrasound heating using real-time ultrasound echo information.
MedLine Citation:
PMID:  20669159     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The objective of this study was to evaluate the feasibility of integrating real-time ultrasound echo guidance in MR-guided high-intensity focused ultrasound (HIFU) heating of mobile targets in order to reduce latency between displacement analysis and HIFU treatment. Experiments on a moving phantom were carried out with MRI-guided HIFU during continuous one-dimensional ultrasound echo detection using separate HIFU and ultrasound imaging transducers. Excellent correspondence was found between MR- and ultrasound-detected displacements. Real-time ultrasound echo-based target tracking during MR-guided HIFU heating is shown with the dimensions of the heated area similar to those obtained for a static target. This work demonstrates that the combination of the two modalities opens up perspectives for motion correction in MRI-guided HIFU with negligible latency.
Authors:
Philippe Lourenço de Oliveira; Baudouin Denis de Senneville; Iulius Dragonu; Chrit T W Moonen
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Publication Detail:
Type:  Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  NMR in biomedicine     Volume:  23     ISSN:  1099-1492     ISO Abbreviation:  NMR Biomed     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-10-21     Completed Date:  2011-01-28     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8915233     Medline TA:  NMR Biomed     Country:  England    
Other Details:
Languages:  eng     Pagination:  1103-8     Citation Subset:  IM    
Affiliation:
Laboratory for Molecular and Functional Imaging,UMR 5231 CNRS/Université Bordeaux 2, Bordeaux, France.
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MeSH Terms
Descriptor/Qualifier:
Heating
Humans
Magnetic Resonance Imaging / instrumentation,  methods*
Motion
Phantoms, Imaging*
Transducers
Ultrasonic Therapy / instrumentation,  methods
Ultrasonics*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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