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Program Information

PROMISE: A New Technology for Pediatric Radiotherapy Without Repeated General Anesthesia


H LIU*, T Chiu , J Dwyer , M Vaidya , M Folkert , L Kun , B Kennard , S Jiang , X Gu , The University of Texas Southwestern Medical Center, Dallas, TX


TH-CD-708-9 (Thursday, August 3, 2017) 10:00 AM - 12:00 PM Room: 708

Purpose: To develop a Pediatric Radiation Oncology with Movie Induced Sedation Effect (PROMISE) system for facilitating pediatric radiotherapy without the repeated use of general anesthesia.

Methods: The PROMISE system is designed to accomplish real-time automated video control of radiation delivery using the AlignRT (VisionRT LTD, UK) motion monitoring system. During radiation treatment, the pediatric patient will watch an age-appropriate movie through a streaming server. If the child moves beyond a pre-defined tolerance, treatment delivery will be suspended by the AlignRT system and the movie will be paused. The PROMISE streaming server adopts Browser/Server architecture based on Red5 media server which is written in Java. ActionScript2/Adobe Flash Builder is the primary tool used for the client side development. The server can manage real-time transfer video, audio and generate customized information to clients over Internet.

Results: The server and two clients, therapist client and patient client, have been developed. The PROMISE system is capable of accomplishing the following functions: 1) taking AlignRT feedback as input to control the video automatically and displaying on therapist client; 2) receiving and displaying the patient’s real-time monitoring picture on therapist client; 3) supporting complete control on the movie including playing/pausing/stopping/seeking both manually by the therapist and automatically by the signals from AlignRT. The system integrates live camera feeds and streamed real-time video to clients without having to wait for the whole file to download. When the patient motion is within the threshold, the therapist client will display and send the video to the patient client. Therapists can monitor and control patient view easily and efficiently anywhere by browser.

Conclusion: The developed system will help facilitate the radiotherapy delivery process and may potentially reduce the need for daily anesthesia in the clinic through pediatric patient instruction and passive motion control using movie playing/pausing/stopping signals.

Funding Support, Disclosures, and Conflict of Interest: CPRIT- RP 160190: Pediatric Radiation Oncology with Movie Induced Sedation Effect (PROMISE).

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