System for prostate brachytherapy and biopsy in a standard 1.5 T MRI scanner

Robert C. Susil, Kevin Camphausen, Peter Choyke, Elliot R. McVeigh, Gary S. Gustafson, Holly Ning, Robert W. Miller, Ergin Atalar, C. Norman Coleman, Cynthia Ménard

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish (US)
Pages (from-to)683-687
Number of pages5
JournalMagnetic resonance in medicine
Volume52
Issue number3
DOIs
StatePublished - Sep 2004

Keywords

  • Biopsy
  • Brachytherapy
  • Interventional MRI
  • MRI
  • Prostate
  • Prostatic neoplasms

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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