Junichi Tokuda

Summary

Affiliation: Harvard University
Country: USA

Publications

  1. ncbi request reprint Configurable automatic detection and registration of fiducial frames for device-to-image registration in MRI-guided prostate interventions
    Junichi Tokuda
    Department of Radiology, Brigham and Women s Hospital and Harvard Medical School, Boston, MA, USA
    Med Image Comput Comput Assist Interv 16:355-62. 2013
  2. pmc In-bore setup and software for 3T MRI-guided transperineal prostate biopsy
    Junichi Tokuda
    Department of Radiology, Brigham and Womens Hospital and Harvard Medical School, Boston, MA, USA
    Phys Med Biol 57:5823-40. 2012
  3. pmc Preclinical evaluation of an MRI-compatible pneumatic robot for angulated needle placement in transperineal prostate interventions
    Junichi Tokuda
    Department of Radiology, Brigham and Women s Hospital, Harvard Medical School, Boston, MA 02115, USA
    Int J Comput Assist Radiol Surg 7:949-57. 2012
  4. pmc Impact of nonrigid motion correction technique on pixel-wise pharmacokinetic analysis of free-breathing pulmonary dynamic contrast-enhanced MR imaging
    Junichi Tokuda
    Harvard Medical School, Boston, MA, USA
    J Magn Reson Imaging 33:968-73. 2011
  5. pmc Integrated navigation and control software system for MRI-guided robotic prostate interventions
    Junichi Tokuda
    Department of Radiology, Brigham and Women s Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
    Comput Med Imaging Graph 34:3-8. 2010
  6. pmc OpenIGTLink: an open network protocol for image-guided therapy environment
    Junichi Tokuda
    Department of Radiology, Brigham and Women s Hospital and Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
    Int J Med Robot 5:423-34. 2009
  7. pmc Software strategy for robotic transperineal prostate therapy in closed-bore MRI
    Junichi Tokuda
    Department of Radiology, Brigham and Women s Hospital and Harvard Medical School, 75 Francis St, Boston, MA 02115, USA
    Med Image Comput Comput Assist Interv 11:701-9. 2008
  8. pmc Adaptive 4D MR imaging using navigator-based respiratory signal for MRI-guided therapy
    Junichi Tokuda
    Graduate School of Information Science and Technology, University of Tokyo, Tokyo, Japan
    Magn Reson Med 59:1051-61. 2008
  9. ncbi request reprint New 4-D imaging for real-time intraoperative MRI: adaptive 4-D scan
    Junichi Tokuda
    Graduate School of Information Science and Technology, The University of Tokyo, 7 3 1, Hongo, Bunkyo, Tokyo 113 8656, Japan
    Med Image Comput Comput Assist Interv 9:454-61. 2006
  10. pmc Image registration for targeted MRI-guided transperineal prostate biopsy
    Andriy Fedorov
    Brigham and Women s Hospital, Harvard Medical School, Boston, Massachusetts, USA
    J Magn Reson Imaging 36:987-92. 2012

Detail Information

Publications19

  1. ncbi request reprint Configurable automatic detection and registration of fiducial frames for device-to-image registration in MRI-guided prostate interventions
    Junichi Tokuda
    Department of Radiology, Brigham and Women s Hospital and Harvard Medical School, Boston, MA, USA
    Med Image Comput Comput Assist Interv 16:355-62. 2013
    ..00 +/- 0.73 mm and 1.41 +/- 1.06 degrees in a phantom study, and was sufficiently robust to detect the fiducial frame in 98% of images acquired in clinical cases despite the existence of anatomical structures in the field of view...
  2. pmc In-bore setup and software for 3T MRI-guided transperineal prostate biopsy
    Junichi Tokuda
    Department of Radiology, Brigham and Womens Hospital and Harvard Medical School, Boston, MA, USA
    Phys Med Biol 57:5823-40. 2012
    ..4 mm (2D RMS). In conclusion, transperineal prostate biopsy in a wide-bore 3T scanner is feasible using our custom-made tabletop setup and software, which supports manual needle placement without moving the patient out of the magnet...
  3. pmc Preclinical evaluation of an MRI-compatible pneumatic robot for angulated needle placement in transperineal prostate interventions
    Junichi Tokuda
    Department of Radiology, Brigham and Women s Hospital, Harvard Medical School, Boston, MA 02115, USA
    Int J Comput Assist Radiol Surg 7:949-57. 2012
    ..To evaluate the targeting accuracy of a small profile MRI-compatible pneumatic robot for needle placement that can angulate a needle insertion path into a large accessible target volume...
  4. pmc Impact of nonrigid motion correction technique on pixel-wise pharmacokinetic analysis of free-breathing pulmonary dynamic contrast-enhanced MR imaging
    Junichi Tokuda
    Harvard Medical School, Boston, MA, USA
    J Magn Reson Imaging 33:968-73. 2011
    ....
  5. pmc Integrated navigation and control software system for MRI-guided robotic prostate interventions
    Junichi Tokuda
    Department of Radiology, Brigham and Women s Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
    Comput Med Imaging Graph 34:3-8. 2010
    ..Performance tests show that the registration error of the system was 2.6mm within the prostate volume. Registered real-time 2D images were displayed 1.97 s after the image location is specified...
  6. pmc OpenIGTLink: an open network protocol for image-guided therapy environment
    Junichi Tokuda
    Department of Radiology, Brigham and Women s Hospital and Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
    Int J Med Robot 5:423-34. 2009
    ..With increasing research on system integration for image-guided therapy (IGT), there has been a strong demand for standardized communication among devices and software to share data such as target positions, images and device status...
  7. pmc Software strategy for robotic transperineal prostate therapy in closed-bore MRI
    Junichi Tokuda
    Department of Radiology, Brigham and Women s Hospital and Harvard Medical School, 75 Francis St, Boston, MA 02115, USA
    Med Image Comput Comput Assist Interv 11:701-9. 2008
    ..The performance test shows that the registration error of the system was 2.6 mm in the prostate area, and it displayed real-time 2D image 1.7 s after the completion of image acquisition...
  8. pmc Adaptive 4D MR imaging using navigator-based respiratory signal for MRI-guided therapy
    Junichi Tokuda
    Graduate School of Information Science and Technology, University of Tokyo, Tokyo, Japan
    Magn Reson Med 59:1051-61. 2008
    ..In conclusion, this study has shown that the proposed method is feasible and capable of providing a real-time dynamic 3D atlas for surgical navigation with sufficient accuracy and image quality...
  9. ncbi request reprint New 4-D imaging for real-time intraoperative MRI: adaptive 4-D scan
    Junichi Tokuda
    Graduate School of Information Science and Technology, The University of Tokyo, 7 3 1, Hongo, Bunkyo, Tokyo 113 8656, Japan
    Med Image Comput Comput Assist Interv 9:454-61. 2006
    ..In conclusion, the study shows that the proposed method is feasible and has capability to provide real-time dynamic 3-D atlas for surgical navigation...
  10. pmc Image registration for targeted MRI-guided transperineal prostate biopsy
    Andriy Fedorov
    Brigham and Women s Hospital, Harvard Medical School, Boston, Massachusetts, USA
    J Magn Reson Imaging 36:987-92. 2012
    ..To develop and evaluate image registration methodology for automated re-identification of tumor-suspicious foci from preprocedural MR exams during MR-guided transperineal prostate core biopsy...
  11. pmc A workspace-orientated needle-guiding robot for 3T MRI-guided transperineal prostate intervention: evaluation of in-bore workspace and MRI compatibility
    Sang Eun Song
    National Center for Image guided Therapy, Brigham and Women s Hospital and Harvard Medical School, Boston, MA, USA
    Int J Med Robot 9:67-74. 2013
    ..For accurate needle positioning, in-bore-operated robotic systems have been developed and optimal use of the confined in-bore space become a critical engineering challenge...
  12. pmc MRI signal intensity based B-spline nonrigid registration for pre- and intraoperative imaging during prostate brachytherapy
    Sota Oguro
    Department of Radiology, Brigham and Women s Hospital, Harvard Medical School, Boston, Massachusetts, USA
    J Magn Reson Imaging 30:1052-8. 2009
    ..To apply an intensity-based nonrigid registration algorithm to MRI-guided prostate brachytherapy clinical data and to assess its accuracy...
  13. pmc Lung motion and volume measurement by dynamic 3D MRI using a 128-channel receiver coil
    Junichi Tokuda
    Department of Radiology, Brigham and Women s Hospital and Harvard Medical School, Boston, MA 02115, USA
    Acad Radiol 16:22-7. 2009
    ....
  14. pmc MRI-compatible manipulator with remote-center-of-motion control
    Nobuhiko Hata
    Department of Radiology, Brigham and Women s Hospital, and Harvard Medical School, Boston, Massachusetts 02115, USA
    J Magn Reson Imaging 27:1130-8. 2008
    ..To develop and assess a needle-guiding manipulator for MRI-guided therapy that allows a physician to freely select the needle insertion path while maintaining remote center of motion (RCM) at the tumor site...
  15. pmc Clinical application of pharmacokinetic analysis as a biomarker of solitary pulmonary nodules: dynamic contrast-enhanced MR imaging
    Hatsuho Mamata
    Department of Radiology, Brigham and Women s Hospital, Harvard Medical School, Boston, Massachusetts, USA
    Magn Reson Med 68:1614-22. 2012
    ..0 min⁻¹ was 76%, specificity was 100%, positive predictive value was 100%, negative predictive value was 45%, and accuracy was 80%. Of all indices studied, k(ep) was the most significant in differentiating malignant from benign SPNs...
  16. pmc Integration of the OpenIGTLink network protocol for image-guided therapy with the medical platform MeVisLab
    Jan Egger
    Brigham and Women s Hospital and Harvard Medical School, Department of Radiology, Boston, MA 02115, USA
    Int J Med Robot 8:282-90. 2012
    ..MeVisLab is a framework for the development of image processing algorithms and visualization and interaction methods, with a focus on medical imaging...
  17. ncbi request reprint Motion tracking in MR-guided liver therapy by using navigator echoes and projection profile matching
    Junichi Tokuda
    Graduate School of Information Science and Technology, The University of Tokyo, 7 3 1, Hongo, Bunkyo ku, Tokyo 113 8656, Japan
    Acad Radiol 11:111-20. 2004
    ..The objective of this paper is to describe the application of navigator echo and projection profile matching to fast two-dimensional image registration for MR-guided liver therapy...
  18. ncbi request reprint A device guidance method for organ motion compensation in MRI-guided therapy
    Jan Lesniak
    Institute for Process Control and Robotics, University of Karlsruhe, Kaiserstrasse 12, 76128 Karlsruhe, Germany
    Phys Med Biol 52:6427-38. 2007
    ..36 mm to 1.51 mm depending on the range of phantom motion) and is robust to noise. The method proposed may be useful in MRI-guided targeted therapy, such as focused ultrasound therapy for a moving organ...
  19. ncbi request reprint Advanced computer assistance for magnetic resonance-guided microwave thermocoagulation of liver tumors
    Shigehiro Morikawa
    Molecular Neuroscience Research Center, Shiga University of Medical Science, Seta tsukinowa cho, Ohtsu, Shiga 520 2192, Japan
    Acad Radiol 10:1442-9. 2003
    ..The purpose of this study was to utilize computer assistance effectively for both easy and accurate magnetic resonance (MR) image-guided microwave thermocoagulation therapy of liver tumors...