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Studying of Selective Common Factors Affecting Radiographic Quality and Related Exposure Doses

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  • Abdulrahman Abdullah Alsayyari

Abstract

In recent decades, there were spectacular developments in imaging technology that lead to substantial enhance in using the radiography in diagnosis of diseases. This study aims to investigate the effect of some potential factors that may influence the radiographic quality and the relative exposure dose. These factors are the exposure dose, the focal size, the filters thickness and grid. Data analysis was done using EXCELL and JAVA SE (JRE) V. 6 software to convert the analogue image into digital. The data showed that the object dose in mGy and dose area product (DAP) in mGy.cm2 were significantly increased (R2 = 0.9) by factors of 0.09 and 0.04 per mA respectively. The broad focus gave high dose and DAP as (0.28 mGy and 2.18 mGy.cm2) compared to fine focus as (0.14 mGy and 1.11 mGy.cm2) respectively. The system output (O/P) in mGy and DAP were significantly increased (R2 = 0.9) by factors of 1.02 and 1.05 respectively when the kVp increased up to 80. The presence of a filter significantly (R2 = 0.9) reduced O/P and DAP to the object by a factor of 5.5 mGy.cm2 and enhanced the image contrast but it reduced the image sharpness when a thick filter was used. The grid showed more homogeneous image contrast and eliminated the scatter, but it reduced the image sharpness. Finally, the data suggest that using image enhancing devices may increase the object dose and it should be done under "As Low As Reasonably Achievable" (ALARA) principles.

Suggested Citation

  • Abdulrahman Abdullah Alsayyari, 2021. "Studying of Selective Common Factors Affecting Radiographic Quality and Related Exposure Doses," International Journal of Sciences, Office ijSciences, vol. 10(02), pages 1-6, February.
    • Handle: RePEc:adm:journl:v:10:y:2021:i:2:p:1-6
    DOI: 10.18483/ijSci.2430
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