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| Research progress of patient-specific organ doses from CT |
| WANG Chuyan1, ZHUO Weihai1, LIN Xin1, LU Heqing2, XIE Tianwu1, LIU Haikuan1 |
1. Institute of Radiation Medicine, Fudan University, Shanghai 200032, China;
2. Department of Medical Equipment, Shanghai First Maternity and Infant Hospital, School of Medicine, Tongji University, Shanghai 200092, China |
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Abstract The radiation risk caused by CT examination is of great concern. Organ dose is considered to be the most significant technical parameter for quantifying the patient radiation dose and assessing the corresponding risk. At present, the methods to obtain patient organ dose caused by CT examination mainly include physical phantom measurement, direct human body measurement, dose conversion coefficient, Monte Carlo simulation, and dose calculation software. Although different methods have their own characteristics and application, the individualization of organ dose is always the goal of radiation protection and dosimetry research. Patient-specific phantom developed with artificial intelligence and GPU-accelerated Monte Carlo simulation make it possible to calculate the patient-specific organ dose, and the patient-specific organ dose extrapolated by the CT detector signal provides a new solution.
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Received: 24 May 2022
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