| 20110096911 | Quality Assurance Phantom for Digital Dental Imaging and Related Method - A quality assurance phantom for intraoral digital dental imaging and related method. The quality assurance phantom measures three different physical properties of an imaging system: dynamic range, contrast detectability, and spatial resolution. The phantom comprises a dynamic range portion having a plurality of steps, each step of the plurality of steps having a different thickness from the other steps; a contrast detail portion having a uniform thickness and a plurality of wells formed therein; a spatial resolution portion having a plurality of line sets, each line set of the plurality of line sets having different line spacing from the other line sets; an attenuating body having uniform thickness positioned between the source and the contrast detail portion and the spatial resolution portion; and a lead mass adjacent to the dynamic range portion. | 04-28-2011 |
