NDLI: Verification of IMRT dose distributions using a water beam imaging system

Content Provider	IEEE Xplore Digital Library
Author	Li, J.S. Ozhasoglu, C. Deng, J. Boyer, A.L. Ma, C.-M.
Copyright Year	2000
Description	Author affiliation: Sch. of Med., Stanford Univ., CA, USA (Li, J.S.)
Abstract	A water beam imaging system (WBIS) was developed and used to verify dose distributions for intensity modulated radiotherapy (IMRT) using dynamic multileaf collimator (MLC). The WBIS consists of a water container, a scintillator screen, a CCD camera, and a portable personal computer. The scintillation image is captured by the CCD camera. The pixel value in this image indicates the dose value in the scintillation screen. The verification is performed by comparing the WBIS image achieved from the measurement with dose distribution from the IMRT plan. Because of light scattering in the WBIS the image is blurred. An iterative reconstruction algorithm is proposed to remove the blurring effect of light scattering. From the measured image of a 10 cm /spl times/10 cm X-ray beam and the simulation result of the dose distribution using the Monte Carlo method, the blur function can be achieved. Based on this function, the proposed algorithm is applied to reconstruct the true dose distribution for an IMRT plan from the measured WBIS image. The reconstructed dose distributions are compared with Monte Carlo simulation results. Reasonable agreement can be observed from the comparison. The proposed approach makes it possible to carry out real-time quality assurance tasks for IMRT dose verification.
Starting Page	1158
Ending Page	1161
File Size	298948
Page Count	4
File Format	PDF
ISBN	0780364651
ISSN	1094687X
DOI	10.1109/IEMBS.2000.897932
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-07-23
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Charge coupled devices Charge-coupled image sensors Light scattering Image reconstruction Intensity modulation Optical modulation Collimators Containers Microcomputers Pixel
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Measurement of water content distribution on skin surface using polarization imaging

Using polarimetric imaging for material classification

Remarks on 3D Human Posture Estimation System Using Simple Multi-Camera System

Imaging through scattering medium from multiple speckle images using microlens array

Remarks on 3D Human Body Posture Estimation System Using Sinple Multi-Camera System

A tomographic framework for LIDAR imaging

Time-gated harmonic imaging through scattering media

Improvement of visibility in scattering random media

Functional imaging of animal body by laser transillumination

Verification of IMRT dose distributions using a water beam imaging system

Similar Documents

Measurement of water content distribution on skin surface using polarization imaging

Using polarimetric imaging for material classification

Remarks on 3D Human Posture Estimation System Using Simple Multi-Camera System

Imaging through scattering medium from multiple speckle images using microlens array

Remarks on 3D Human Body Posture Estimation System Using Sinple Multi-Camera System

A tomographic framework for LIDAR imaging

Time-gated harmonic imaging through scattering media

Improvement of visibility in scattering random media

Functional imaging of animal body by laser transillumination

Verification of IMRT dose distributions using a water beam imaging system