In vivo evaluation of angulated needle-guide template for MRI-guided transperineal prostate biopsy.

Journal: Medical physics
Published Date:

Abstract

PURPOSE: Magnetic resonance imaging (MRI)-guided transperineal prostate biopsy has been practiced since the early 2000s. The technique often suffers from targeting error due to deviation of the needle as a result of physical interaction between the needle and inhomogeneous tissues. Existing needle guide devices, such as a grid template, do not allow choosing an alternative insertion path to mitigate the deviation because of their limited degree-of-freedom (DoF). This study evaluates how an angulated needle insertion path can reduce needle deviation and improve needle placement accuracy.

Authors

  • Pedro Moreira
  • John Grimble
    Physical Sciences Inc., 20 New England Bus Center Dr, Andover, MA, USA.
  • Nicusor Iftimia
    Physical Sciences Inc., 20 New England Bus Center Dr, Andover, MA, USA.
  • Camden P Bay
    From the Department of Radiology, Brigham and Women's Hospital, Boston, Mass (K.M., C.P. Bay, N.M., W.C.W., M.H.R.); MGH & BWH Center for Clinical Data Science, Boston, Mass (C.P. Bridge, K.P.A.); Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Mass (A.B., L.K.B., B.M.W.); and Department of Radiology, Massachusetts General Hospital, Boston, Mass (F.J.F., F.M.T.).
  • Kemal Tuncali
    Department of Radiology, Brigham and Women's Hospital, Boston, Massachusetts, USA.
  • Jesung Park
    Physical Sciences Inc., 20 New England Bus Center Dr, Andover, MA, USA.
  • Junichi Tokuda