Document Detail

Positive contrast MRI of prostate brachytherapy seeds based on resonant frequency offset mapping.
MedLine Citation:
PMID:  21096732     Owner:  NLM     Status:  MEDLINE    
MRI provides a safe, high-resolution imaging modality that can be used to assist physicians during intra-operative and post-operative phases of prostate brachytherapy. The metallic outer structure of brachytherapy seeds, however, naturally produces dark features in MR imagery, which can be confused with other image voids. This work explores the application of resonant frequency offset maps to predict the shift in resonant frequency that occurs in the vicinity of a metallic cylindrical seed-like object. An off-resonance imaging approach is then proposed to generate positive contrast markers that may aid in automatic unambiguous detection and localization of brachytherapy seeds in MR imagery.
Gregory Whitehead; Jim Ji
Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference     Volume:  2010     ISSN:  1557-170X     ISO Abbreviation:  Conf Proc IEEE Eng Med Biol Soc     Publication Date:  2010  
Date Detail:
Created Date:  2010-11-24     Completed Date:  2011-03-17     Revised Date:  2014-08-21    
Medline Journal Info:
Nlm Unique ID:  101243413     Medline TA:  Conf Proc IEEE Eng Med Biol Soc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  6641-4     Citation Subset:  IM    
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MeSH Terms
Brachytherapy / methods*
Magnetic Resonance Imaging / methods*
Prostatic Neoplasms / pathology,  radiotherapy

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

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