| 摘要 |
A method and a suite of filters for detecting carotid artery calcification in a panoramic dental radiograph, including imposing a filter between an x-ray radiation beam source and an imaging medium, wherein the imposing attenuates the effect of the incident x-ray in the region of the carotid artery; obtaining a panoramic dental radiograph while imposing the filter, wherein the imposing enhances the contrast of the radiograph in the region of carotid artery; and detecting a calcification region in the area of the radiograph wherein the x-ray image's contrast has been enhanced by using the filter, and which area corresponds with the location of the carotid artery. The suite of filters include a patient format, a cassette format, an x-ray unit format and a software-based format.
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