Browse > Article
http://dx.doi.org/10.15207/JKCS.2018.9.12.107

The convergence study on patient position and exposure dose in abdominal CT examination using AEC  

Lee, Chun-Kyu (Department of Radiology, Chungnam National University Hospital)
Oh, Jeong-Sub (Department of Radiology, Chungnam National University Hospital)
Choi, Seon-Wook (Department of Radiology, Chungnam National University Hospital)
Kim, Gab-Jung (Department of Radiological Technology, Songho University)
Yoo, Se-Jong (Department of Radiological Technology, Daejeon Health Institute of Technology)
Jeon, Min-Cheol (Department of Radiological Technology, Daejeon Health Institute of Technology)
Publication Information
Journal of the Korea Convergence Society / v.9, no.12, 2018 , pp. 107-113 More about this Journal
Abstract
The purpose of this study was to evaluate the dose and image quality according to the rotation of the X-axis direction in the abdominal CT scan, and to find ways to reduce the exposure dose. The phantom was scanned by rotating in the X-axis direction at 0, 5, 10, and 15 degrees, respectively. The CTDIvol value, HU, noise, and signal-to-noise ratio were measured at each rotation. ANOVA analysis was performed using the SPSSWIN (ver 19.0) program. The radiation exposure dose was 5.44mGy, 5.70mGy, 5.98mGy and 6.38mGy at 0, 5, 10 and 15 degrees, respectively. HU, noise, and signal-to-noise ratio were not statistically significant. In the CT scan, if the patient is located in the isocenter of the gantry aperture and there is no rotation in the X-axis direction, the exposure dose is reduced.
Keywords
Computed Tomography; Rotating in th x-axis direction; Exposure Dose; Image quality; Phantom;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
연도 인용수 순위
1 MOHW (2018). http://www.mohw.go.kr/react/al/sal0301vw.jsp?PAR_MENU_ID=04&MENU_ID=0403&CONT_SEQ=344198&page=1
2 MOHW (2017). http://www.mohw.go.kr/react/al/sal0301vw.jsp?PAR_MENU_ID=04&MENU_ID=0403&CONT_SEQ=343047&page=1
3 H. J. Kim (2016). Analysis and Evaluation of Computed Tomography Dose Index (CTDI) of Pediatric Brain by Hospital Size. Journal Society of Radiology, 10(7), 503-510.
4 K. B. Kim (2016). Image Evaluation for A Kind of Patient Fixing Pad in 64 Multi-Channel Detector Computed Tomograph. Journal of The Korea Convergence Society, 7(1), 89-95. DOI : 10.15207/JKCS.2016.7.1.089   DOI
5 KFDA (2012). http://www.nifds.go.kr/ brd/m_15/view.do?seq=5331
6 J. H. Lee (2013). Volume Change of Spiral Computed Tomography due to the Changed in the Parameters. Journal of the Korean Society of Radiology, 7(4), 307-311. DOI : 10.7742/jksr.2013.7.4.307   DOI
7 Computed Tomography (2015). Seoul : DaiHaks Publishing, P34
8 E. J. Kim & K. B. Lee (2017). Comparative study on optimal noise and radiation dose according to body weight versus body mass index (BMI) in abdomen pelvis CT. Korean Society of Computed Tomographic Technology, 19(2), 27-35
9 M. Y. Lee & M. C. Kim & Y. C. Nam & D. K. Han (2010) Eva luation of Dose and Image Quality in Case of Discordance Between Isocenter of Gantry and Center in CT Ex amination. Korean Society of Computed Tomographic Technology, 12(1), 79-86.
10 D. H. Lee & J. H. Kim & C. M. Dae & K. H. Min & S. R. Kim & P. K. Cho (2011). The Influence of Radiation Dose and Image Quality in Accordance with Bowtie Filter Size and Miscentering of X-Axis Direction. Korean Society of Computed Tomographic Technology, 13(2), 93-104.
11 P. K. Cho (2015). Patient Radiation Exposure Dose in Computed Tomography. Journal of Korean Society of Radiology, 9(2), 109-115. DOI : 10.7742/jksr.2014.9.2.109   DOI
12 S. Y. Kang & J. H. Lee & H. C. Kim & Y. S. Lee (2017). The Useflness of CAD in low-dose chest CT When Isocenter is inconsistent. Korean Society of Computed Tomographic Technology, 19(2), 7-16.
13 S. W. Choi & M. C. Jeon (2018). Awarness about Convergent Patient Safety Culture of Health Professional Working in Tertiary Hospital, Journal of The Korea Convergence Society, 9(1), 103-109. DOI : 10.15207/JKCS.2018.9.1.103   DOI
14 C. G. Kim (2012). University Students'Awareness of Radiation, Journal of The Korea Convergence Society, 3(1), 27-34.   DOI
15 S. Y. Seo (2017). A study on the usefulness of a fusin model designed cloak shield to reduce the radiation exposure of the assistant during CT of severely injured patient. Journal of The Korea Convergence Society, 8(9), 211-216. DOI : 10.15207/JKCS.2017.8.9.211   DOI