ASSESSMENT OF BLURRING EFFECT AND ITS ASSOCIATED FACTORS BY USING IMAGEJ: A MULTIPARAMETER DOUBLE HOLES CONTRAST-DETAIL PHANTOM STUDY

  • NUR FARAHANA PAUZI
  • ZAFRI AZRAN ABDUL MAJID International Islamic University Malaysia
  • WAN MUHAMAD NASUHA WAN HUSSIN
  • ABDUL HALIM SAPUAN
  • MOHD ZULFAEZAL CHE AZEMIN

Abstract

Introduction: X-ray is produced in form of divergent beam. The beamdivergence results to blurring effect that influences image diagnosis. Thus, theblurring effect assessment should be enrolled within the quality control (QC)program of an imaging unit.Method: this study is conducted by using multiparameter double holescontrast-detail (MDHCD) phantom to define the blurring effect and itsassociated factors which include the source-to-image receptor distance (SID),object thickness, and object distance from center. This study was conducted byexposing the phantom with x-ray where the factors were manipulated. ImageJsoftware was used to analyze the phantom images by plotting pixel intensitycurves and measuring area under the curves (AUC) of two areas (area 1 andarea 2).Results: From the result, increased SID (750-1250-1750) mm, decreases the AUCreading (area 1; 415-328-306, area 2; 454-339-308) Pixel-per-millimeter (Ppmm).When object thickness increases (13-18-23) mm, AUC increases (area 1; 262-321-349, area 2; 274-333-386) Ppmm. Lastly, when the distance from center isincreased (50-100-150) mm, AUC increases (area 1; 401-438-449, area 2; 459- 477-487) Ppmm.Conclusion: In conclusion, the blurring effect is more prominent as the SIDdecreases and the object thickness and distance from center increase.
Published
2017-07-01
How to Cite
PAUZI, NUR FARAHANA et al. ASSESSMENT OF BLURRING EFFECT AND ITS ASSOCIATED FACTORS BY USING IMAGEJ: A MULTIPARAMETER DOUBLE HOLES CONTRAST-DETAIL PHANTOM STUDY. INTERNATIONAL JOURNAL OF ALLIED HEALTH SCIENCES, [S.l.], v. 1, n. 2, p. 107-119, july 2017. Available at: <http://journals.iium.edu.my/ijahs/index.php/IJAHS/article/view/5>. Date accessed: 17 jan. 2018.
Section
Articles