AN ASSESSMENT OF ABSORBED DOSE TO SOME CRITICAL ORGANS IN PANORAMIC RADIOGRAPHY

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HASHEMI MALAYERI B.; HAJI HASHEMI B.; SALAMAT A.R.

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Journal: Daneshvar Medicine: Basic and Clinical Research Journal Year:2003 | Volume:10 | Issue:45 Page(s): 75-82

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Title

AN ASSESSMENT OF ABSORBED DOSE TO SOME CRITICAL ORGANS IN PANORAMIC RADIOGRAPHY

Author(s)

HASHEMI MALAYERI B. | HAJI HASHEMI B. | SALAMAT A.R. | Issue Writer Certificate

Keywords

PANORAMIC RADIOGRAPHYQ2

ABSORBED DOSEQ2

CRITICAL ORGANSQ4

Abstract

PANORAMIC RADIOGRAPHY is one of the important diagnostic methods in dental radiology. Since this method has been used commonly in recent years, the assessment of ABSORBED DOSEs received by CRITICAL ORGANS in this radiographic technique is necessary. In this research, the ABSORBED DOSEs of the eyes, parotids and thyroid glands were measured for 40 adult patients undergoing panoramic examination using Planmeca Panoramic Systems. To assess the dose, LiF thermoluminescent dosimeters were calibrated and placed on the above organs and the mean ABSORBED DOSEs of the eyes, parotids and thyroid gland at two radiology centers of Isfahan (center 1 and 2). The values estimated for the eyes, parotids and thyroid at center 1 and 2 were: 91.5±10.0, 84.3±7.3, 2723±54.3 and 2657±72.4, 1514±28.4, 1461 ±40.0 micro- Gray respectively. Statistical tests revealed no significant difference (P>0.05) between the ABSORBED DOSEs of the right and left eyes, the right and left sides of parotid glands and the right, middle and left parts of thyroid. These findings were expected considering the way the panoramic systems operate. On the other hand, the results acquired from the both centers were compared with each other. Analysis of the data revealed significant differences (P<0.05) between the two centers for all the organs. The reason for the differences observed may be the more workload of the center 1 and the lack of periodical calibration of the panoramic systems studied. It was also noted that the ABSORBED DOSEs of the eyes estimated in this study were significantly lower than the dose limit recommended by the ICRP for the eyes. It is worth mentioning that although the estimated ABSORBED DOSEs received by the organs/tissues of interest were quite low for the PANORAMIC RADIOGRAPHY techniques investigated in this study, according to the ALARA (As Low As Resonable Achievable) principles and because this imaging technique may be used frequently and in short intervals of time, some precautions -such as periodical calibration of equipments- must be taken into consideration.

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APA: Copy

HASHEMI MALAYERI, B., HAJI HASHEMI, B., & SALAMAT, A.R.. (2003). AN ASSESSMENT OF ABSORBED DOSE TO SOME CRITICAL ORGANS IN PANORAMIC RADIOGRAPHY. DANESHVAR MEDICINE, 10(45), 75-82. SID. https://sid.ir/paper/30646/en

Vancouver: Copy

HASHEMI MALAYERI B., HAJI HASHEMI B., SALAMAT A.R.. AN ASSESSMENT OF ABSORBED DOSE TO SOME CRITICAL ORGANS IN PANORAMIC RADIOGRAPHY. DANESHVAR MEDICINE[Internet]. 2003;10(45):75-82. Available from: https://sid.ir/paper/30646/en

IEEE: Copy

B. HASHEMI MALAYERI, B. HAJI HASHEMI, and A.R. SALAMAT, “AN ASSESSMENT OF ABSORBED DOSE TO SOME CRITICAL ORGANS IN PANORAMIC RADIOGRAPHY,” DANESHVAR MEDICINE, vol. 10, no. 45, pp. 75–82, 2003, [Online]. Available: https://sid.ir/paper/30646/en

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