Comparison of Digital Image Quality of Postero-Anterior (PA) Projection Thoracic Radiography at Various Film Distance Focuses
DOI:
https://doi.org/10.62872/o.v3i1.486Keywords:
Focus Film Distance, Radiography Image Quality, ThoraxAbstract
Focus film distance (FFD) is the standard distance between the x-ray emission point in the x-ray tube (focal spot) and the image receptor. Based on the author's experience during observations in more than one hospital, where almost all observation places, researchers noticed that officers rarely see the details of the FFD, with an average of 180 cm being used in PA projection thorax examinations. The purpose of this study was to compare the quality of radiographic images in PA projection thorax examinations and to determine which FFD is optimal in the FFD variations of 117 cm, 150 cm, 183 cm in PA projection thorax examinations. The type of research used in this study is a quantitative experimental study through literature studies, observations and questionnaires, in order to achieve the objectives of the study. This study was conducted at the H. Hanafie Muara Bungo Regional Hospital in June. The sample in this study amounted to 5 people. Data collection was carried out by questionnaire, the data obtained was then processed using the SPSS application. The results of this study indicate that in the use of FFD variations there are differences in image quality. The results of SPSS calculations show that the significance value is <0.05, which means that H0 is rejected and Ha is accepted. FFD 150 cm is the optimal distance in producing quality radiographic images in postero-anterior projection thorax examinations.
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