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A Computer Vision Based Device for Detecting Patient Motion During Radiotherapy Treatment

详细技术说明

None

*Abstract

A camera generates digital image signals representing an image of one or more natural or artificial fiducials on a patient positioned on treatment or diagnosis equipment. A processor applies multiple levels of filtering at multiple levels of resolution to repetitively determine successive fiducial positions. A warning signal is generated if movement exceeds certain limits but is still acceptable for treatment. Unacceptable displacement results in termination of the treatment beam. Tracking templates can be generated interactively from a display of the digital image signals or through automatic selection of an image having the median correlation to an initial template. A gating signal synchronized to patient breathing can be extracted from the digital image signals for controlling the radiation beam generator.US patent protection only. No foreign filings.

*Principal Investigation

Name: Charalambos Athanassiou

Department: Med-Medicine

Name: Joel Greenberger, Professor & Chairman

Department: Med-Radiation Oncology

Name: Andre Kalend

Department: Radiation Oncology

Name: Takeo Kanade

Department: SHRS-Rehab Sci & Tech

Name: Karun Shimoga

Department:

国家/地区

美国