Currently, a software-based second check dose calculation for helical tomotherapy (HT) is not available. The goal of this study is to evaluate the dose calculation accuracy of the in-house software using EGS4/MCSIM Monte Carlo environment against the treatment planning system calculations. In-house software was used to convert HT treatment plan information into a non-helical format. The MCSIM dose calculation code was evaluated by comparing point dose calculations and dose profiles against those from the HT treatment plan. Fifteen patients, representing five treatment sites, were used in this comparison. Point dose calculations between the HT treatment planning system and the EGS4/MCSIM Monte Carlo environment had percent difference values below 5 % for the majority of this study. Vertical and horizontal planar profiles also had percent difference values below 5 % for the majority of this study. Down sampling was seen to improve speed without much loss of accuracy. EGS4/MCSIM Monte Carlo environment showed good agreement with point dose measurements, compared to the HT treatment plans. Vertical and horizontal profiles also showed good agreement. Significant time saving may be obtained by down-sampling beam projections. The dose calculation accuracy of the in-house software using the MCSIM code against the treatment planning system calculations was evaluated. By comparing point doses and dose profiles, the EGS4/MCSIM Monte Carlo environment was seen to provide an accurate independent dose calculation.
机构:
Univ Texas Hlth Sci Ctr San Antonio, Dept Radiol Sci, San Antonio, TX 78229 USAUniv Texas Hlth Sci Ctr San Antonio, Dept Radiol Sci, San Antonio, TX 78229 USA
Dzintars, Eric
Stathakis, Sotirios
论文数: 0引用数: 0
h-index: 0
机构:
Univ Texas Hlth Sci Ctr San Antonio, Dept Radiol Sci, San Antonio, TX 78229 USAUniv Texas Hlth Sci Ctr San Antonio, Dept Radiol Sci, San Antonio, TX 78229 USA
Stathakis, Sotirios
Mavroidis, Panayiotis
论文数: 0引用数: 0
h-index: 0
机构:
Univ Texas Hlth Sci Ctr San Antonio, Dept Radiol Sci, San Antonio, TX 78229 USA
Karolinska Inst, Dept Med Radiat Phys, S-17176 Stockholm, Sweden
Stockholm Univ, S-17176 Stockholm, SwedenUniv Texas Hlth Sci Ctr San Antonio, Dept Radiol Sci, San Antonio, TX 78229 USA
Mavroidis, Panayiotis
Sadeghi, Amir
论文数: 0引用数: 0
h-index: 0
机构:
Univ Texas Hlth Sci Ctr San Antonio, Dept Radiol Sci, San Antonio, TX 78229 USAUniv Texas Hlth Sci Ctr San Antonio, Dept Radiol Sci, San Antonio, TX 78229 USA
Sadeghi, Amir
Papanikolaou, Nikos
论文数: 0引用数: 0
h-index: 0
机构:
Univ Texas Hlth Sci Ctr San Antonio, Dept Radiol Sci, San Antonio, TX 78229 USAUniv Texas Hlth Sci Ctr San Antonio, Dept Radiol Sci, San Antonio, TX 78229 USA
机构:
Mary Bird Perkins Canc Ctr, Baton Rouge, LA USA
Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USAMary Bird Perkins Canc Ctr, Baton Rouge, LA USA
Gibbons, John P.
Smith, Koren
论文数: 0引用数: 0
h-index: 0
机构:
Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USAMary Bird Perkins Canc Ctr, Baton Rouge, LA USA
Smith, Koren
Cheek, Dennis
论文数: 0引用数: 0
h-index: 0
机构:
Mary Bird Perkins Canc Ctr, Baton Rouge, LA USAMary Bird Perkins Canc Ctr, Baton Rouge, LA USA
Cheek, Dennis
Rosen, Isaac
论文数: 0引用数: 0
h-index: 0
机构:
Mary Bird Perkins Canc Ctr, Baton Rouge, LA USA
Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USAMary Bird Perkins Canc Ctr, Baton Rouge, LA USA
Rosen, Isaac
JOURNAL OF APPLIED CLINICAL MEDICAL PHYSICS,
2009,
10
(01):
: 103
-
119