Effective Dose Measurement for Cone Beam Computed Tomography Using Glass Dosimeter

다국어 초록 (Multilingual Abstract)

During image-guided radiation therapy, the patient is exposed to unwanted radiation from imaging devices built into themedical LINAC. In the present study, the effective dose delivered to a patient from a cone beam computed tomography(CBCT) machine was measured. Absorbed doses in specific organs listed in ICRP Publication 103 were measured with glassdosimeters calibrated with kilovolt (kV) X-rays using a whole body physical phantom for typical radiotherapy sites, includingthe head and neck, chest, and pelvis. The effective dose per scan for the head and neck, chest, and pelvis were 3.37±0.29,7.36±0.33, and 4.09±0.29 mSv, respectively. The results highlight the importance of the compensation of treatment dose bymanaging imaging dose.

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