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1. (WO2018165025) SYSTEM AND METHOD FOR IMAGE GUIDED TRACKING TO ENHANCE RADIATION THERAPY

Pub. No.:    WO/2018/165025    International Application No.:    PCT/US2018/020923
Publication Date: Fri Sep 14 01:59:59 CEST 2018 International Filing Date: Tue Mar 06 00:59:59 CET 2018
IPC: A61N 5/10
G06T 5/50
G06T 7/254
Applicants: THE CHARLES STARK DRAPER LABORATORY, INC.
BRIGHAM AND WOMEN'S HOSPITAL, INC.
Inventors: BERLIN, Andrew, A.
WILLIAMS, Christopher, L.
BERBECO, Ross
Title: SYSTEM AND METHOD FOR IMAGE GUIDED TRACKING TO ENHANCE RADIATION THERAPY
Abstract:
This invention provides a system and method that allows the utilization of computer vision system techniques and processes, such as multi-layer separation and contrast mapping, to enhance the detectability of an imaged tumor, opening the door to real-time tumor tracking and/or modulation of a treatment radiation beam so as to maximize the radiation dosage applied to the tumor itself while minimizing the dosage received by surrounding tissues. The techniques and processes also permit more accurate assessment of the level of radiation dosage delivered to the tumor. An image processor receives the image data from the detector as a plurality of image frames, and performs contrast stretching on the image frames to resolve features. A motion analysis module compares static and dynamic features in the contrast-stretched image frames to derive layers of features. The image frames are output as enhanced image frames. The output can be used to guide the beam.