2006
DOI: 10.1118/1.2237543
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Abstract: Digital tomosynthesis mammography (DTM) is a promising new modality for breast cancer detection. In DTM, projection-view images are acquired at a limited number of angles over a limited angular range and the imaged volume is reconstructed from the two-dimensional projections, thus providing three-dimensional structural information of the breast tissue. In this work, we investigated three representative reconstruction methods for this limited-angle cone-beam tomographic problem, including the backprojection (BP… Show more

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Cited by 252 publications
(217 citation statements)
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“…Although not completely spatially invariant, this approach subjectively did a good job of effective deblurring with point-by-point BP and was fast compared with iterative methods (Wu et al, 2003;Zhang et al, 2006). Results with human subjects demonstrated subjectively that FBP deblurring with point-by-point BP provides good rendition of detailed structures, reduced out-of-plane blur, and suppressed high frequency noise.…”
Section: Discussionmentioning
confidence: 91%
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“…Although not completely spatially invariant, this approach subjectively did a good job of effective deblurring with point-by-point BP and was fast compared with iterative methods (Wu et al, 2003;Zhang et al, 2006). Results with human subjects demonstrated subjectively that FBP deblurring with point-by-point BP provides good rendition of detailed structures, reduced out-of-plane blur, and suppressed high frequency noise.…”
Section: Discussionmentioning
confidence: 91%
“…It also works as the foundation of a few other algorithms, including Niklason and colleagues' image stretching SAA (Niklason et al, 1997), TACT (Suryanarayanan et al, 2000(Suryanarayanan et al, , 2001, MITS (Chen et al, 2004, etc. Currently, most commercial breast tomosynthesis prototype devices apply the isocentric tube motion geometry where the X-ray tube moves along an arc above the detector (Wu et al, 2003;Bissonnette et al, 2005;Zhang et al, 2006). With isocentric motion of DBT, the shift amount actually occurs in both the X-ray tube's motion direction and the direction perpendicular to tube motion direction.…”
Section: Introductionmentioning
confidence: 99%
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“…With the model in equation (1), we can construct the update step of a gradient ascent algorithm [26,27,29] using formula (11), where α j ≥ 0 is a design parameter.…”
Section: B Grouped Coordinate Ascent Algorithm For Dbtmentioning
confidence: 99%
“…These projections are then usually reconstructed with filtered backprojection (FBP) although this reconstruction by FBP is not always optimal [10,11] because of the limited angular range and low dose acquisitions, * koen.michielsen@uzleuven.be especially for small angular range [12]. This while according to Lu [9] a small angular range is actually better for visualizing subtle micro-calcifications when using a simultaneous algebraic reconstruction technique (SART), showing that reconstruction technique and acquisition geometry are linked and that an optimal geometry for one reconstruction might not be valid for another method.…”
Section: Introductionmentioning
confidence: 99%