| Accuracy validation for MRI-guided robotic prostate biopsy. | |
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MedLine Citation:
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PMID: 21132060 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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We report a quantitative evaluation of the clinical accuracy of a MRI-guided robotic prostate biopsy system that has been in use for over five years at the U.S. National Cancer Institute. A two-step rigid volume registration using mutual information between the pre and post needle insertion images was performed. Contour overlays of the prostate before and after registration were used to validate the registration. A total of 20 biopsies from 5 patients were evaluated. The maximum registration error was 2 mm. The mean biopsy target displacement, needle placement error, and biopsy error was 5.4 mm, 2.2 mm, and 5.1 mm respectively. The results show that the pre-planned biopsy target did dislocate during the procedure and therefore causing biopsy errors. |
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Authors:
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Helen Xu; Andras Lasso; Siddharth Vikal; Peter Guion; Axel Krieger; Aradhana Kaushal; Louis L Whitcomb; Gabor Fichtinger |
Publication Detail:
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Type: JOURNAL ARTICLE |
Journal Detail:
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Title: Proceedings of SPIE Volume: 7625 ISSN: 0277-786X ISO Abbreviation: - Publication Date: 2010 Feb |
Date Detail:
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Created Date: 2010-12-6 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101524122 Medline TA: Proc SPIE Country: - |
Other Details:
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Languages: ENG Pagination: 762517-762518 Citation Subset: - |
Affiliation:
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Queen's University, Kingston, Canada. |
Export Citation:
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Descriptor/Qualifier:
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| Grant Support | |
ID/Acronym/Agency:
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R01 CA111288-04//NCI NIH HHS; R01 EB002963-05//NIBIB NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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