مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Information Journal Paper

Title

COMPARISON OF TISSUE DENSITY IN HOUNSFIELD UNITS IN COMPUTED TOMOGRAPHY AND CONE BEAM COMPUTED TOMOGRAPHY

Pages

  108-115

Abstract

 Objectives: Bone quality and quantity assessment is one of the most important steps in implant treatment planning. Different methods such as computed TOMOGRAPHY (CT) and recently suggested cone beam computed TOMOGRAPHY (CBCT) with lower radiation dose and less time and cost are used for BONE DENSITY assessment. This in vitro study aimed to compare the tissue density values in Hounsfield units (HUs) in CBCT and CT scans of different tissue phantoms with two different thicknesses, two different image acquisition settings and in three locations in the phantoms.Materials and Methods: Four different tissue phantoms namely hard tissue, soft tissue, air and water were scanned by three different CBCT and a CT system in two thicknesses (full and half) and two image acquisition settings (high and low kVp and mA). The images were analyzed at three sites (middle, periphery and intermediate) using eFilm software. The difference in density values was analyzed by ANOVA and correction coefficient test (P<0.05).Results: There was a significant difference between density values in CBCT and CT scans in most situations, and CBCT values were not similar to CT values in any of the phantoms in different thicknesses and acquisition parameters or the three different sites. The correction coefficients confirmed the results.Conclusions: CBCT is not reliable for tissue density assessment. The results were not affected by changes in thickness, acquisition parameters or locations.

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    Cite

    APA: Copy

    VARSHOWSAZ, MASOUD, GOORANG, SEPIDEH, EHSANI, SARA, AZIZI, ZEYNAB, & RAHIMIAN, SEPIDEH. (2016). COMPARISON OF TISSUE DENSITY IN HOUNSFIELD UNITS IN COMPUTED TOMOGRAPHY AND CONE BEAM COMPUTED TOMOGRAPHY. FRONTIERS IN DENTISTRY (JOURNAL OF DENTISTRY OF TEHRAN UNIVERSITY OF MEDICAL SCIENCES), 13(2), 108-115. SID. https://sid.ir/paper/298040/en

    Vancouver: Copy

    VARSHOWSAZ MASOUD, GOORANG SEPIDEH, EHSANI SARA, AZIZI ZEYNAB, RAHIMIAN SEPIDEH. COMPARISON OF TISSUE DENSITY IN HOUNSFIELD UNITS IN COMPUTED TOMOGRAPHY AND CONE BEAM COMPUTED TOMOGRAPHY. FRONTIERS IN DENTISTRY (JOURNAL OF DENTISTRY OF TEHRAN UNIVERSITY OF MEDICAL SCIENCES)[Internet]. 2016;13(2):108-115. Available from: https://sid.ir/paper/298040/en

    IEEE: Copy

    MASOUD VARSHOWSAZ, SEPIDEH GOORANG, SARA EHSANI, ZEYNAB AZIZI, and SEPIDEH RAHIMIAN, “COMPARISON OF TISSUE DENSITY IN HOUNSFIELD UNITS IN COMPUTED TOMOGRAPHY AND CONE BEAM COMPUTED TOMOGRAPHY,” FRONTIERS IN DENTISTRY (JOURNAL OF DENTISTRY OF TEHRAN UNIVERSITY OF MEDICAL SCIENCES), vol. 13, no. 2, pp. 108–115, 2016, [Online]. Available: https://sid.ir/paper/298040/en

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