Direct in-treatment imaging of lung tumors during radiation therapy to ensure proper radiation targeting is an unsolved challenge. We propose to overcome this obstacle using beam's-eye-view (BEV) imaging with a high efficiency imager to automatically localize lung tumors in real-time. The project goal is to design, validate and clinically deploy the new high efficiency imager. We will first determine the specifications necessary for robust BEV imaging. The design of the novel imager to meet this goal will be performed using a new Monte Carlo platform. Scintillator composition, pixelation and stacking of multiple layers will be optimized and the new imager will be validated prior to full scale deployment in a radiation therapy clinic. In addition to the immediate clinical benefits of real-tie lung tumor localization, we anticipate that this project will accelerate advanced applications like tumor tracking, delivered dose accumulation and adaptive radiation therapy. The Monte Carlo platform will also hasten the development of novel imagers for other medical applications beyond this project. Therefore the impact of the project extends far beyond the immediate clinical gain, which is in itself substantial.

Public Health Relevance

It has been demonstrated that lung tumor motion due to respiration can change during the delivery of radiation therapy. Currently, there is no safe method for imaging lung tumors during radiation therapy to ensure proper targeting. We have shown that the current beam's-eye-view imager is insufficient for consistent, accurate lung tumor imaging and we are proposing the design, development and clinical validation of a novel high efficiency imager to overcome this obstacle.

Agency
National Institute of Health (NIH)
Type
Research Project (R01)
Project #
1R01CA188446-01
Application #
8768186
Study Section
Special Emphasis Panel (ZRG1)
Program Officer
Baker, Houston
Project Start
Project End
Budget Start
Budget End
Support Year
1
Fiscal Year
2014
Total Cost
Indirect Cost
Name
Dana-Farber Cancer Institute
Department
Type
DUNS #
City
Boston
State
MA
Country
United States
Zip Code
02215