ArticlePhysica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB)2018
Monte Carlo simulation of eye lens dose reduction from CT scan using organ based tube current modulation.
Article in Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 13 citations in OpenAlex.
- Correlation analysis of organ doses with dose metrics for patients undergoing organ dose-modulated head CT examinations.Quantitative imaging in medicine and surgery · 2025Article
- Investigation of Eye Lens Dose Estimate based on AAPM Report 293 in Head Computed Tomography.Journal of biomedical physics & engineering · 2021Article
- Organ doses evaluation for chest computed tomography procedures with TL dosimeters: Comparison with Monte Carlo simulations.Journal of applied clinical medical physics · 2019Article
- Human lens weights with increasing age.Molecular vision · 2018Article
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Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
Abstract
purposeTo investigate lens dose reduction with organ based tube current modulation (TCM) using the Monte Carlo method.
methodsTo calculate lens dose with organ based TCM, 36 pairs of X-ray sources with bowtie filters were placed around the patient head using a projection angle interval of 10° for one rotation of Computed Tomography (CT). Each projection was simulated respectively. Both voxelized and stylized eye models and Chinese reference male phantoms were used in the simulation, and tube voltages 80, 100, 120 and 140 kVp were used.
resultsDose differences between two eye models were less than 20%, but large variations were observed among dose results from different projections of all tube voltages investigated. Dose results from 0° (AP) directions were 60 times greater than those from 180° (PA) directions, which enables organ based TCM reduce lens doses by more than 47%.
conclusionsOrgan based TCM may be used to reduce lens doses. Stylized eye models are more anatomically realistic compared with voxelized eye models and are more reliable for dose evaluation.
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