Quality Control Assessment of Conventional Radiology Devices in Iran

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ASADINEZHAD MOHSEN; BAHREYNI TOOSSI MOHAMMAD TAGHI; EBRAHIMINIA ALI; Giahi Masoumeh

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Journal Paper

Paper Information

Journal: IRANIAN JOURNAL OF MEDICAL PHYSICS Year:2017 | Volume:14 | Issue:1 Page(s): 1-7

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Information Journal Paper

Title

Quality Control Assessment of Conventional Radiology Devices in Iran

Author(s)

ASADINEZHAD MOHSEN | BAHREYNI TOOSSI MOHAMMAD TAGHI | EBRAHIMINIA ALI | Giahi Masoumeh | Issue Writer Certificate

Keywords

Quality control

Diagnostic X-ray

Radiology

Abstract

Introduction Quality control (QC) techniques are used in monitoring and maintenance of the components of an x-ray system. QC of Radiology devices plays a significant role in reduction of medication dose and optimization of image quality. This study aimed to conduct QC tests on randomly selected Radiology devices, installed in diagnostic imaging departments of Iran. Materials and Methods In total, Quality control tests were conducted on 51 conventional Radiology devices installed in 20 cities of Iran in order to assess the accuracy of peak kilovoltage (kVp), exposure time, exposure linearity and reciprocity, reproducibility of exposure and determination of half-value layer (HVL) using a calibrated Mult-O-Meter. Results In this study, 38. 6% of devices had intolerable variance of kVp accuracy. The results of 34. 5% of devices were out of the acceptable limits in exposure time accuracy test. In 46. 7% and 53. 1% of devices, variance was greater than the acceptable range for exposure linearity and exposure reciprocity, respectively. In terms of reproducibility of exposure test, the reproducibility variance and percentage of tube output variations in 19. 4% of devices exceeded the limits. Moreover, the thickness of first HVL was lower than the acceptable limit in 14. 7% of devices. Conclusion According to the results of this study, there were wide variations in QC test results, perhaps mainly due to the fact that it is not an obligation to implement QC programs in Iran. The most important problems were non-reciprocity of exposure, nonlinearity of exposure with milliampere-second (mAs), kVp and timer inaccuracy. Involvement of medical physicists, radiologists and radiographers in the implementation of QC programs at various stages of development, installation and use of equipment should enable the gradual improvement in equipment performance.

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APA: Copy

ASADINEZHAD, MOHSEN, BAHREYNI TOOSSI, MOHAMMAD TAGHI, EBRAHIMINIA, ALI, & Giahi, Masoumeh. (2017). Quality Control Assessment of Conventional Radiology Devices in Iran. IRANIAN JOURNAL OF MEDICAL PHYSICS, 14(1), 1-7. SID. https://sid.ir/paper/718809/en

Vancouver: Copy

ASADINEZHAD MOHSEN, BAHREYNI TOOSSI MOHAMMAD TAGHI, EBRAHIMINIA ALI, Giahi Masoumeh. Quality Control Assessment of Conventional Radiology Devices in Iran. IRANIAN JOURNAL OF MEDICAL PHYSICS[Internet]. 2017;14(1):1-7. Available from: https://sid.ir/paper/718809/en

IEEE: Copy

MOHSEN ASADINEZHAD, MOHAMMAD TAGHI BAHREYNI TOOSSI, ALI EBRAHIMINIA, and Masoumeh Giahi, “Quality Control Assessment of Conventional Radiology Devices in Iran,” IRANIAN JOURNAL OF MEDICAL PHYSICS, vol. 14, no. 1, pp. 1–7, 2017, [Online]. Available: https://sid.ir/paper/718809/en

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