Dynamic reconstruction and rendering of 3D tomosynthesis images

Kuo, Johnny; Ringer, Peter; Fallows, Steven G.; Bakić, Predrag R.; Maidment, Andrew D. A.; Ng, Susan

doi:10.1117/12.878910

Cited by 35 publications

(23 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This software uses a back projection filtering method 14 . The reconstructed volumes have a pixel size of 0.1 mm at the focal plane and a distance between slices of 0.5 mm.…”

Section: Image Processing and Reconstructionmentioning

confidence: 99%

Optimizing configuration parameters of a stationary digital breast tomosynthesis system based on carbon nanotube x-ray sources

et al. 2012

Self Cite

View full text Add to dashboard Cite

The stationary Digital Breast Tomosynthesis System (s-DBT) has the advantage over the conventional DBT systems as there is no motion blurring in the projection images associated with the x-ray source motion. We have developed a prototype s-DBT system by retrofitting a Hologic Selenia Dimensions rotating gantry tomosynthesis system with a distributed carbon nanotube (CNT) x-ray source array. The linear array consists of 31 x-ray generating focal spots distributed over a 30 degree angle. Each x-ray beam can be electronically activated allowing the flexibility and easy implementation of novel tomosynthesis scanning with different scanning parameters and configurations. Here we report the initial results of investigation on the imaging quality of the s-DBT system and its dependence on the acquisition parameters including the number of projections views, the total angular span of the projection views, the dose distribution between different projections, and the total dose. A mammography phantom is used to visually assess image quality. The modulation transfer function (MTF) of a line wire phantom is used to evaluate the system spatial resolution. For s-DBT the in-plan system resolution, as measured by the MTF, does not change for different configurations. This is in contrast to rotating gantry DBT systems, where the MTF degrades for increased angular span due to increased focal spot blurring associated with the x-ray source motion. The overall image quality factor, a composite measure of the signal difference to noise ratio (SdNR) for mass detection and the z-axis artifact spread function for microcalcification detection, is best for the configuration with a large angular span, an intermediate number of projection views, and an even dose distribution. These results suggest possible directions for further improvement of s-DBT systems for high quality breast cancer imaging.

show abstract

“…This software uses a back projection filtering method 14 . The reconstructed volumes have a pixel size of 0.1 mm at the focal plane and a distance between slices of 0.5 mm.…”

Section: Image Processing and Reconstructionmentioning

confidence: 99%

Optimizing configuration parameters of a stationary digital breast tomosynthesis system based on carbon nanotube x-ray sources

et al. 2012

Self Cite

View full text Add to dashboard Cite

show abstract

“…To observe super-resolution, it is necessary to perform the reconstruction with a matrix whose pixel size is much smaller than that of the detector elements. The existence of super-resolution was verified experimentally with a bar pattern phantom 1, 5 using a commercial digital breast tomosynthesis (DBT) x-ray unit and a commercial prototype reconstruction solution 9 (Briona TM , Real Time Tomography, Villanova, PA). In DBT, super-resolution has applications in improving the visibility of microcalcifications and other subtle signs of breast cancer.…”

Section: Introductionmentioning

confidence: 99%

Oblique reconstructions in tomosynthesis. II. Super‐resolution

Acciavatti

Maidment

2013

Medical Physics

Self Cite

View full text Add to dashboard Cite

show abstract

“…Also, additional acceleration is achievable by using a graphical processing unit (GPU) based implementation. [40][41][42] IV.B. Thickness control of Cooper's ligaments Figure 10 shows synthetic mammographic projections through phantoms with the same composition but three different thicknesses of simulated Cooper's ligaments; the changes in ligament thickness are visible in the synthetic images.…”

Section: à6mentioning

confidence: 99%

Optimized generation of high resolution breast anthropomorphic software phantoms

2012

Self Cite

View full text Add to dashboard Cite

Purpose: The authors present an efficient method for generating anthropomorphic software breast phantoms with high spatial resolution. Employing the same region growing principles as in their previous algorithm for breast anatomy simulation, the present method has been optimized for computational complexity to allow for fast generation of the large number of phantoms required in virtual clinical trials of breast imaging. Methods: The new breast anatomy simulation method performs a direct calculation of the Cooper's ligaments (i.e., the borders between simulated adipose compartments). The calculation corresponds to quadratic decision boundaries of a maximum a posteriori classifier. The method is multiscale due to the use of octree-based recursive partitioning of the phantom volume. The method also provides user-control of the thickness of the simulated Cooper's ligaments and skin. Results: Using the proposed method, the authors have generated phantoms with voxel size in the range of (25-1000 lm)

show abstract

Dynamic reconstruction and rendering of 3D tomosynthesis images

Cited by 35 publications

References 12 publications

Optimizing configuration parameters of a stationary digital breast tomosynthesis system based on carbon nanotube x-ray sources

Optimizing configuration parameters of a stationary digital breast tomosynthesis system based on carbon nanotube x-ray sources

Oblique reconstructions in tomosynthesis. II. Super‐resolution

Optimized generation of high resolution breast anthropomorphic software phantoms

Contact Info

Product

Resources

About