“Monocular visual patient monitoring for frameless stereotaxy”,

In this paper, we propose a low cost, robust vision based system for monitoring patient movements during stereotactic radiotherapy: the Monocular Visual Patient Movement Monitoring (MVPM) System. The system consists of a light weight mouth bite with dual fiducial system used for position tracking. One set of fiducials consist of easy-to-detect checkerboard whose 3D position can be tracked using a pre-calibrated off-the-shelf camera and a set of radio-opaque rods suitable for X-ray imaging. We describe the associated workflow steps for using the system during planning and treatment phases. Also we report experimental results for tracking accuracy using a in-house phantom.

• Type: Conference
• Year: 2011
• Where: Proceedings of the CCEE IISc
• Authors: Amit Kale, SP Manivannan and V.Gupta
• Keywords: External Beam Radiation Therapy (EBRT)