Radiation dose assessement on dual and 16 slices MDCT using Monte Carlo simulation

被引：0

作者：

Mkimel, M. ^{[1
,2
]}

Mesradi, M. R. ^{[1
]}

El Baydaoui, R. ^{[1
]}

Toufique, Y. ^{[1
]}

Halimi, A. ^{[1
]}

Hilal, M. ^{[1
]}

Saad, E. ^{[1
]}

Hilali, A. ^{[1
]}

机构：

[1] Hassan 1st Univ, High Inst Hlth Sci, Lab Technol & Med Sci, Settat, Morocco

[2] Publ Hosp, Dept Radiol, Settat, Morocco

来源：

2018 IEEE INTERNATIONAL SYMPOSIUM ON MEDICAL MEASUREMENTS AND APPLICATIONS (MEMEA) | 2018年

关键词：

CTDI; GATE; MDCT; PMMA; effective dose; CONVERSION FACTORS; GATE;

D O I：

暂无

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Computed Tomography Dose Index (CTDI) is an important factor to estimate effective dose using the conversion factors. In this work, we estimated CTDI with Monte Carlo simulation using the (GATE/GEANT4) code. Two PMMA phantom diameters, 16 cm and 32 cm, have been used to simulate, respectively, the patient's head and body. The simulation was made at various kVp and mAs levels for dual and 16 slices Multi Detector Computed Tomography MDCT. Experimental CTDI measurements were performed with a calibrated pencil ion chamber and the two PMMAs. the comparison results between the simulated, measured and displayed values show slight differences. Indeed, a difference of less than 4% is noticed for the 2 slices and less than 2% for the 16 slices. The effectiveness of our method shows that GATE can be used to optimize the effective dose to reduce radiological risks in CT clinical applications.

引用

页码：885 / 889

页数：5

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