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A study of beam hardening effect reduction occur in brain CT
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 Title & Authors
A study of beam hardening effect reduction occur in brain CT
Kim, Hyeon-ju;
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 Abstract
This study aim is occur in brain CT cause of beam hardening effect and reducing method, We will scan Bone opaque bead phantom on variation of image on the influence factor with equipment called `Samatom Senation 16` with following listed herein : tube voltage, tube current, slice thickness, gantry angle, base line which affect beam-hardening effect. After that we are going to start Quantitative Analysis resulted in previous scanning and Qualitative Assessment with CT image sheet evaluation. result of quantitative analysis 140kVp on tube voltage, 150mA on tube current, 3mm on slice thickness, and IOML on gantry angle which was the least beam-hardening effect. Like Qualitative Analysis, we went through Qualitative Assessment and most of valuers got a result of 140kVp on tube voltage, 150mA on tube current, 3mm on slice thickness. As before valuers evaluated gantry angle that scanned image from IOML or OML was the least beam-hardening effect occured. There are meaningful differences when we compare all theses factors statistically(P<0.05). therefore We consider that Minimizing artifact that caused by beam-hardening effect can provide better quality of image to deciphers and patients. if we rise tube voltage in permissible dose limit, set tube current in a limit that does not effect to image quality, use slice thickness too thin enough to harm resolution, use IOML or OML on gantry angle.
 Keywords
Beam hardening effect;Gantry angle;kVp;mA;Slice thickness;
 Language
Korean
 Cited by
 References
1.
D. W. Kim,, H, S. Kim, S. O. Park "Textbook of Computed Tomography, pp. 7, Dae-hak Publishing co , 2010

2.
C. H Lee, and C. S. Lim, A study on Added Filters for Reduction of Radiation Exposure Dose in Skull A-P Projection, Journal of Korean Academia-Industrial cooperation Society Vol. 12, No. 7, pp. 3117-3122 July, 2011. DOI: http://dx.doi.org/10.5762/KAIS.2011.12.7.3117 crossref(new window)

3.
Y. H. Ko, D. C. Kwon, K. K. Kim, "Textbook of Computed Tomography", pp. 19-22, Chung-ku Publishing co, 2009.

4.
Massachusetts General Hospital. Result of CT scanner quality assurance, safety evaluation, and calibration. Boston. 1993. 395-397

5.
C. H Lee, and C. S. Lim, A study on Added Filters for Reduction of Radiation Exposure Dose in Skull A-P Projection, Journal of Korean Academia-Industrial cooperation Society Vol. 12, No. 7, pp. 3117-3122 July, 2011. DOI: http://dx.doi.org/10.5762/KAIS.2011.12.7.3117 crossref(new window)

6.
H. L. Lee et al, The Effect of a Thyroid Shield Made of a Tissue-Equivalent Material on the Reduction of the Thyroid Exposure Dose in Panoramic Radiography Journal of Korean Academia-Industrial cooperation Society Vol. 13, No. 5,, pp. 2278-2284, 2012. DOI: http://dx.doi.org/10.5762/KAIS.2012.13.5.2278 crossref(new window)

7.
C. H Lee, and C. S. Lim, A study on Added Filters for Reduction of Radiation Exposure Dose in Skull A-P Projection, Journal of Korean Academia-Industrial cooperation Society Vol. 12, No. 7, pp.3117-3122 July, 2011. DOI: http://dx.doi.org/10.5762/KAIS.2011.12.7.3117 crossref(new window)

8.
Y. H. Kim et al, patient exposure doses from medical X-ray examination in Korea, Journal of Korean Academia-Industrial cooperation Society Vol. 28, No. 3, pp. 241-248 September, 2011.

9.
M. C. Kim, The latest CT imaging technology studies theory QC, Chung-ku moon hwa-sa, pp. 366-399, 2007

10.
Wang, MW Vannier. Helical CT image noise; Analytical result. Med Phys. Vol. 20 No.6 1993;1635-1640 crossref(new window)

11.
M. C. Kim, The latest CT imaging technology studies theory QC, Chung-ku moon hwa-sa, pp. 374, 2007

12.
H. J. Kim, J. H. Jo, W. J. Jung Journal of the Korean Society of Radiology, Vol.5, No.2, pp.61

13.
J. S. Kang, S. K. Ko, D. K Kwon Quality Improvement of Computed Tomography. X-ray device Quality Improvement and examination. Jung-moon Publishing co. 2000;109-128 2007

14.
M. C. Kim,. Actual performance management of the Computed Tomography. journal of korea society council computed tomography 1st Refresher training; 53-66, 2002.

15.
Nicholas J schneiders, Stewart C Bushong. CT quality assurance: Computer assisted slice thickness. Med Phys. vol.7,No.1.1990; 61-63

16.
S. H. Kim et al, Development and Radiation Shield effects of Dose Reduction Fiber for Fiber for Scatter ray in CT Exams, Journal of Korean Academia-Industrial cooperation Society Vol. 14, No. 4, pp. 1871-1872, 2013 DOI: http://dx.doi.org/10.5762/KAIS.2013.14.4.1871 crossref(new window)