Prog Med Phys.  2013 Dec;24(4):259-264. 10.14316/pmp.2013.24.4.259.

Development of DICOM Convert Program for the Geant4 Monte Carlo Simulation of the Radiotherapy

• Kang J
• Lee DJ

• KMID: 1910567
• DOI: http://doi.org/10.14316/pmp.2013.24.4.259

Abstract

The DICOM converter program of the Geant4 Monte Carlo simulation code for the application of radiotherapy was developed. We analysis the header part of the DICOM file and find various parameters, such as matrix size, pixel size, stored data bits, high bit, and padding values. Especially we evaluate every pixel value of the DICOM files. To conform the exact convert of the pixel values, we developed the verify program. As a result, the DICOM formats generated from difference CT vendors can be converted and verified for Genat4 calculations.

Keyword

Monte Carlo; Dicom; Radiotherapy; Geant4

MeSH Terms

Commerce
Radiotherapy*

Figure

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  Fig. 1. Structure of the header part of the Dicom file.

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  Fig. 2. Difference of header part of DICOM file.

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  Fig. 3. Difference of bits stored. (a) bits stored=12 and High bits= 11 (b) bits stored=16 and high bit=15.

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  Fig. 4. Evaluation of converted meta files. (a) original DICOM file (b) compressed file (compression=1) (c) compressed file (compression=2) (d) compressed file (compression=4).

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