Two-view digital breast tomosynthesis screening with synthetically reconstructed projection images: comparison with digital breast tomosynthesis with full-field digital mammographic images. Pairing current reconstructed 2d images and digital breast tomosynthesis (dbt) is comparable to combining standard full-field digital mammography (ffdm) and dbt, according to research published in the june issue of radiology. Purpose: by convention, slices in a tomosynthesis reconstruction are created on planes parallel to the detector it has not yet been demonstrated that slices can be generated along oblique directions through the same volume, analogous to multiplanar reconstructions in computed tomography (ct) the. Digital breast tomosynthesis reconstruction using spatially weighted non-convex regularization jiabei zheng a,b, jeffrey a fessler a,b, heang-ping chan a adepartment of radiology, university of michigan, ann arbor, mi 48109 b department of. A comparison of reconstruction algorithms for breast tomosynthesis october 2004 medical physics three algorithms for breast tomosynthesis reconstruction were compared in this paper, including (1) a back-projection (bp) algorithm (equivalent to the shift-and-add algorithm), (2) a feldkamp filtered back-projection (fbp) algorithm, and. Reconstruction algorithms for tomosynthesis are different from those of conventional ct because the conventional filtered back projection algorithm requires a.
Digital breast tomosynthesis (dbt) is an imaging technique that allows a volumetric reconstruction of the whole breast from a finite number of low-dose two-dimensional projections obtained by different x-ray tube angles, with a geometric principle very similar to that applied in stratigraphic technique. 1 principles of breast tomosynthesis acquisition and reconstruction andrew maidment, phd, faapm associate professor of radiology chief, physics section. Keywords: tomosynthesis, breast imaging, 3-d reconstruction, parallel computation, iterative reconstruction 1 introduction tomosynthesis is an imaging technique that provides planar information of an object from a set of discrete x-ray projections 1. Tomosynthesis is used in 3d mammography in order to create a three dimensional image of breast tissue for better examination. Digital tomosynthesis imaging is becoming increasingly significant in a variety of medical imaging applications tomosynthesis imaging involves the acquisition of a series of projection images over a limited angular range, which, after reconstruction, results in a pseudo–three-dimensional (3d) representation of the imaged object.
Technology in cancer research & treatment, volume 10, number 4, august 2011 ultra-fast digital tomosynthesis reconstruction using gpu 297 materials and methods. Development of a prototype chest digital tomosynthesis which are the most widely used tomosynthesis reconstruction methods sciencedirect ® is a registered.
Understanding digital breast tomosynthesis •collected data permits reconstruction of parallel planes, each plane in-focus, with out-of-plane tissues blurred. X-ray digital tomosynthesis imaging: an appropriate reconstruction algorithm for arthroplasty by tsutomu gomi, hiroshi hirano and masahiro nakajima.
1 digital breast tomosynthesis reconstruction with detector blur and correlated noise jiabei zheng , jeffrey a fessler , heang-ping chany abstract—this paper describes a new reconstruction method. Introduction to tomosynthesis ioannis sechopoulos tomosynthesis reconstruction tomosynthesis scan affect the vertical resolution.
Abstract this work deals with the optimization of iterative image reconstruction algorithms using cuda an iterative implementation in idl for digital breast tomosynthesis (dbt) image. Dissertation approval image reconstruction and imaging configuration optimization with a novel nanotechnology enabled breast tomosynthesis multi-beam x-ray system.
Investigated reconstruction algorithms, os-mlem and sart performed better in interplane artifact removal with a fast speed convergence © 2015 spie and is&t [doi: 101117/1jei242023028] keywords: digital breast tomosynthesis reconstruction algorithm ray-tracing. The purpose of this review was (1) to identify indications for volumetric x-ray digital tomosynthesis by using a conventional reconstruction technique [the filtered back-projection (fbp) algorithm] and modern reconstruction techniques [the maximum likelihood expectation maximization (mlem) and simultaneous iterative reconstruction. Image reconstruction and processing for quantitative imaging using stationary digital tomosynthesis gongting wu a dissertation submitted to the faculty of the university of north carolina at chapel hill in. 1 med phys 2010 nov37(11):6003-14 selective-diffusion regularization for enhancement of microcalcifications in digital breast tomosynthesis reconstruction. As a new three-dimensional breast imaging technique, breast tomosynthesis allows the reconstruction of an arbitrary set of planes in the breast from a limited-angle series of x-ray projection images.
No 11 wang zhen-tian et alµpreliminary attempt on maximum likelihood tomosynthesis reconstruction of dei data 983 meannumberofbackgroundcounts. Diagnostic performance of digital breast tomosynthesis and full-field digital mammography with new reconstruction and new processing for dose reduction. In this study, a widely used iterative reconstruction algorithm art + tv for tomosynthesis was combined with nlm to reduce the out-of-focus slice blur which is. 3d mammography, or breast tomosynthesis, is a relatively new breast imaging procedure approved by the us food and drug administration in 2011 like traditional mammography, 3d mammography uses x-rays to produce images of breast tissue in order to detect lumps, tumors or other abnormalities 3d mammography is capable of. Image reconstruction in region-of-interest (or interior) digital tomosynthesis (dts) based on compressed-sensing (cs.