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System for prostate brachytherapy and biopsy in a standard 1.5 T MRI scanner
Author(s) -
Susil Robert C.,
Camphausen Kevin,
Choyke Peter,
McVeigh Elliot R.,
Gustafson Gary S.,
Ning Holly,
Miller Robert W.,
Atalar Ergin,
Coleman C. Norman,
Ménard Cynthia
Publication year - 2004
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/mrm.20138
Subject(s) - brachytherapy , medicine , prostate , prostate cancer , prostate brachytherapy , scanner , biopsy , radiology , nuclear medicine , radiation treatment planning , magnetic resonance imaging , prostate biopsy , cancer , radiation therapy , computer science , artificial intelligence
A technique for transperineal high‐dose‐rate (HDR) prostate brachytherapy and needle biopsy in a standard 1.5 T MRI scanner is demonstrated. In each of eight procedures (in four patients with intermediate to high risk localized prostate cancer), four MRI‐guided transperineal prostate biopsies were obtained followed by placement of 14–15 hollow transperineal catheters for HDR brachytherapy. Mean needle‐placement accuracy was 2.1 mm, 95% of needle‐placement errors were less than 4.0 mm, and the maximum needle‐placement error was 4.4 mm. In addition to guiding the placement of biopsy needles and brachytherapy catheters, MR images were also used for brachytherapy treatment planning and optimization. Because 1.5 T MR images are directly acquired during the interventional procedure, dependence on deformable registration is reduced and online image quality is maximized. Magn Reson Med 52:683–687, 2004. Published 2004 Wiley‐Liss, Inc.