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- W2054085552 abstract "Abstract The z-resolution is an important image quality metric for a tomosynthesis system. The relationship between the acquisition angular range and z-resolution has yet been carefully investigated, mainly due to the lacking of a tomosynthesis system capable of fully automated acquisitions in a variety of angular ranges. We utilized a newly developed flat-panel based tomosynthesis prototype system to investigate this relationship through a phantom study at an angular range from 20° (+/−10°), 40° (+/−20°), and 60° (+/−30°). In addition to the phantom study, a simulation study was also performed to investigate the relationship in a wider angular range (from 2.5° to 60°). The phantom study results are highly correlated with the simulation results (correlation coefficient=0.998, p-value=0.022). These studies have revealed overall nonlinear relationships between the angular range and the z-resolution. However, within a certain angular range (i.e., 20° to 60°), their relationship can be considered as linear. Results have shown that increasing the angular range from 20° to 40° reduced the z spread (i.e., increases z-resolution) by 49.1%; further increasing the angular range to 60° reduced the z spread by another 21.1%." @default.
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- W2054085552 date "2004-06-01" @default.
- W2054085552 modified "2023-09-24" @default.
- W2054085552 title "The impact of acquisition angular range on the z-resolution of radiographic tomosynthesis" @default.
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- W2054085552 doi "https://doi.org/10.1016/j.ics.2004.03.298" @default.
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