Correlation between spatial resolution and ball distortion rate of panoramic radiography.
Han-Gyeol YeomJo-Eun KimKyung-Hoe HuhWon-Jin YiMin-Suk HeoSam-Sun LeeSoon-Chul ChoiPublished in: BMC medical imaging (2020)
Image layer of panoramic radiography could be evaluated by the spatial resolution using horizontal and vertical line pair phantoms and by assessing ball distortion rates through a ball-type panorama phantom. A ball distortion rate of 20% could be used as a threshold to evaluate the image layer of panoramic radiography.