Abstract:
This study was aimed to evaluate the effect of focal spot size on image quality,
this study was done in Modern Medical Center, and The X-ray machine
modality is digital radiography. Before collection of data x.ray machines
calibrated, This study proved that fine focal spot images were sharp in outline
compared to broad focal spot images, the image quality was evaluated by visual
perception by questionnaire 100 professional Radiologist were asked to evaluate
the image quality for fine focal image compared to broad focal image, the result
was 62% of from the asked group evaluated fine focal spot image better than
broad focal spot size image were 28% of from the asked group evaluated fine
focal spot size image same quality to broad focal spot size image and 10% from
the asked group evaluated broad focal spot size image better than fine focal spot
size image. The result is same as in previous study, the relative large part of the
study (28% + 10%) that presents broad focal images is same quality and better
than fine focal spot may be due to the digital image processing.
