Mohammad Javad Keikhai Farzaneh ¹, Mahdi Shirin Shandiz ¹, Mojtaba Vardian ², Mohammad Reza Deevband ³, Mohammad Reza Kardan ³

Affiliations
1 Zahedan Health Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, IR
2 Fasa University of Medical Sciences, Fasa, IR
3 National Radiation Protection Department, Tehran, IR

Abstract

The major means of exposure to man-made sources of radiation is due to diagnostic examinations with X-ray. In the current research, for making practical the programs of reducing the patient's absorbed dose and increasing the quality of radiographic images in Sistan and Baluchestan hospitals, the patients surface dose and image quality were evaluated. In the first stage of experiment, the image quality and the cause of low quality of images was evaluated for a period of one month, and the patient dose for 10 adults in 7 projection were calculated in this study. Then the quality control tests were conducted to determine the equipment failures and provide appropriate corrective actions. Subsequently in the second stage of study, the image quality and patients dose were compared with the first stage of experimental data. The ESAK mean for all the centers, before and after implementing the quality control program was achieved as 0.48±0.30 and 0.37±0.20 for chest (anterior-posterior), 3.4±1.67 and 3.13±1.25 for lumbar spine (anteriorposterior), 8.81±7.72 and 7.56 ±5.99 for lumbar spine (lateral), 3.56±1.85 and 3.34±1.74 for the abdomen (anteriorposterior), 2.79±1.40 and 2.71 ±1.24 for pelvis (anterior-posterior), 2.27±1.43 and 2.1±1.25 for the skull (anteriorposterior) and 1.50±0.87 and 1.43±0.76 for the skull (lateral), respectively.(the data are based on mGy). The radiographic images quality was also increased between 0 to 10% after implementing quality control program. Results obtained show that a quality control program to reduce patient dose and increase radiographic image quality is necessary to ensure that all radiological examinations are performed under the terms of less received dose for the patients and the received images have good quality.

Keywords

Radiology, Radiography, X-ray, ESAK, Patient Dose, Quality Control, Hospital, Sistan And Baluchestan

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Mohammad Javad Keikhai Farzaneh ¹, Mahdi Shirin Shandiz ¹, Mojtaba Vardian ², Mohammad Reza Deevband ³, Mohammad Reza Kardan ⁴

Affiliations
1 Zahedan Health Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, IR
2 Fasa University of Medical Sciences, Fasa, IR
3 National Radiation Protection Department, Tehran, Iran, IR
4 National Radiation Protection Department, Tehran, IR

Abstract

One of the most significant factors in decreasing the radiation exposure dose is quality control and making sure of the quality of radiological devices. The aim of this study is to consider the quality control of nine radiological device in nine hospitals in Sistan and Baluchestan, Iran, so that the question can be answered whether radiological devices are in the best efficiency conditions or not and to assure about their appropriate function. This study was performed cross-sectional in the year 2009, and the DIAVOLT and the dosimeter device named DIADOSE made by PTW's company were used for conduction quality control experiment. For making this experiment practical, various parameters of quality control programs as output repeatability of X-ray tube, time accuracy, time repeatability, output linearity with mA, voltage accuracy, adapting the optical field with radiation field, being vertical of radiation field on the film and the filtration of the concerned devices based on the analyzable standards are implemented. Our finding reveals that six out of the nine devices have not the required standards for voltage accuracy and need mending. In addition, all the nine devices have defects concerning adaptation with optical field and radiation field and one of the devices has not also sufficient filtration. The quality control of the utilized radiological devices should be performed periodically and regularly and the defects of the devices should be removed in order to be assured of the appropriate function of the devices. Unfortunately, all the devices need mending because of lack of implementing the quality control program regularly, which indicates that the quality control programs should be extended regularly.

Keywords

X-ray, Radiology, Quality Control, Patient Dose, Radiation Protection, Sistan and Baluchestan

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