Cao F, Ramaseshan R, Cooper N, Elith CA, Nuraney N, Steiner P, Agranovich A, Kwan W, Liu M, Po M, Karvat A. Template-based Intensity-Modulated Radiation Therapy: A Cost-effective Intensity-Modulated Radiation Therapy Planning Procedure for Prostate Cancer.
J Med Imaging Radiat Sci 2015;
46:325-330. [PMID:
31052140 DOI:
10.1016/j.jmir.2015.04.013]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 04/21/2015] [Accepted: 04/22/2015] [Indexed: 11/29/2022]
Abstract
INTRODUCTION
Intensity-modulated radiation therapy (IMRT) has been widely accepted for the treatment of prostate cancer. In comparison with traditional three-dimensional conformal radiation therapy (3D-CRT), it improves local control while minimizing side effects. However, IMRT comes at a significantly higher cost. In this report, we describe the development of template-based IMRT (TB-IMRT) planning for prostate cancer that does not require additional resources above 3D-CRT.
METHODS
Twenty patients previously treated using 3D-CRT were retrospectively planned using the TB-IMRT planning technique. Planning target volume coverage, dose to organs at risk, and resource usage were compared between 3D-CRT and TB-IMRT techniques.
RESULTS
All 3D-CRT and TB-IMRT plans met the planning guidelines. TB-IMRT compared better than 3D-CRT in terms of the homogeneity index (0.039 ± 0.007 vs. 0.052 ± 0.008) and conformity index (0.866 ± 0.024 vs. 0.752 ± 0.054). TB-IMRT also provided better sparing of organs at risk. Planning times were significantly less for TB-IMRT (average 13.43 ± 2.18 minutes) compared with conventional plans (45.4 ± 17.0 minutes). Times required for patient-specific quality assurance were similar between TB-IMRT and 3D-CRT.
CONCLUSIONS
The TB-IMRT technique for prostate allows for all the potential benefits of IMRT without any additional resources above conventional 3D-CRT.
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