Optimization of the craniospinal radiation technique by synthesizing multiple advanced radiation techniques / 生物医学工程学杂志
Journal of Biomedical Engineering
;
(6): 193-197, 2010.
Article
in Chinese
| WPRIM
| ID: wpr-341655
ABSTRACT
Craniospinal radiation is one of essential components in the treatment flow for a number of central nervous system malignancies. Meticulous attention to technique and dosimetry is required to produce optimum tumor control. In this paper, an optimized treatment regimen was proposed based on multiple techniques. The CT images for a 17-year-old male patient in need of craniospinal radiation were acquired for 3D conformal treatment planning. The split-beam technique, the extended penumbra fields matching technique, and the multiple leaf collimator segments and extended SSD technique were synthesized in the treatment regimen so as to work out an optimized treatment plan. The added few segments improved the dose homogeneity in spinal cord. The maximal point dose was decreased from 124% to 108% of the prescribed dose in it. Comparative study on the anthropomorphic phantom showed that the data collected by thermoluminescent detectors and the data obtained by calculation were basically coincident. These results suggest that the proposed technique be clinically acceptable.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Radiometry
/
Radiotherapy
/
Spinal Cord Neoplasms
/
Radiotherapy Planning, Computer-Assisted
/
Brain Neoplasms
/
Diagnostic Imaging
/
Magnetic Resonance Imaging
/
Tomography, X-Ray Computed
/
Neoplasms, Germ Cell and Embryonal
/
Radiotherapy, Conformal
Type of study:
Diagnostic study
Limits:
Adolescent
/
Humans
/
Male
Language:
Chinese
Journal:
Journal of Biomedical Engineering
Year:
2010
Type:
Article
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