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http://dx.doi.org/10.5573/ieie.2017.54.7.110

Quality Assessment for Elbow CT scan by positioning and respiratory control  

Lim, Jong-Chun (Hanyang University hospital)
Park, Sang-Hyun (Hanyang University hospital)
Lee, In-Jae (Hanyang University hospital)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.54, no.7, 2017 , pp. 110-114 More about this Journal
Abstract
Because the arm can't be sutured due to fracture during a elbow CT scan, a CT scan is proceeded in a state of abdomen and L-spire are overlapped which beam hardening artifact is done many times, and it often lowers the quality of elbow CT images. So there are many difficulties in reading and due to increase in radiation dose from it, the number of patient's exposure keeps increasing. In this research, it plans to improve the quality of the images by avoiding overlap with abdomen, and increasing the number of photon overlapped with lung field which the line attenuation is relatively small. The way of experiment is based on patient's right elbow and place him as head first position, then place his elbow at L2-3 level in supine position, turn about 30 degrees to the left in non-control breathing and in supine position, and compared with full inspiration after overlapping with lung. After figuring out the average value and standard deviation data using Image J program 5 times each for 16, 128 channels, the evaluation is proceeded by measuring each of CNR, MSR are statistically analyzed using SPSS program. Therefore, through positioning and inspiration during elbow CT scan, the way of inspection minimized the exposure radiation dose, and seems to be meaningful in a way to improve the quality of the images.
Keywords
팔꿈치관절 CT;컴퓨터단층촬영;선속감약현상;
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Times Cited By KSCI : 2  (Citation Analysis)
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