TY - CONF
T1 - Relationship between the tube voltage dependence of cross-sectional absorbed profile and exposed dose of superficial radiosensitive organs
AU - Shibahara, T.
AU - Koyama, S.
AU - Inoue, M.
AU - Haba, T.
N1 - Funding Information:
This research was supported by grant-in-aid from the Japanese Ministry of Education, Culture, Sports, Science and Technology, (C):26460727 and (C):25350536.
Publisher Copyright:
© 2014 22nd EGS Users' Meeting in Japan
PY - 2015/10/1
Y1 - 2015/10/1
N2 - There has been a growing concern regarding exposure to superficial radiosensitive organs with the rapid increase of computed tomography examinations. Manufacturers have been developing various dose reduction methods in order to prevent harm to these organs. Our previous study revealed a unique phenomenon in X-ray computed tomography scanning, in which the maximum absorbed dose position shifts to a deeper region from the surface in a water cylindrical phantom. We considered that this result could be applied as a dose reduction method. Therefore, in this study, we investigate the tube voltage dependence of this unique phenomenon. The results show that the peak dose position shifts to a deeper region with increasing tube voltage. The superficial radiosensitive organs can thus be protected from peak dose exposure by adjusting the tube voltage.
AB - There has been a growing concern regarding exposure to superficial radiosensitive organs with the rapid increase of computed tomography examinations. Manufacturers have been developing various dose reduction methods in order to prevent harm to these organs. Our previous study revealed a unique phenomenon in X-ray computed tomography scanning, in which the maximum absorbed dose position shifts to a deeper region from the surface in a water cylindrical phantom. We considered that this result could be applied as a dose reduction method. Therefore, in this study, we investigate the tube voltage dependence of this unique phenomenon. The results show that the peak dose position shifts to a deeper region with increasing tube voltage. The superficial radiosensitive organs can thus be protected from peak dose exposure by adjusting the tube voltage.
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M3 - Paper
AN - SCOPUS:85074217246
SP - 25
EP - 32
T2 - 2015 22nd EGS Users' Meeting in Japan
Y2 - 3 August 2015 through 4 August 2015
ER -