3D algebraic iterative reconstruction for cone-beam x-ray differential phase-contrast computed tomography

PloS One
Jian FuFranz Pfeiffer

Abstract

Due to the potential of compact imaging systems with magnified spatial resolution and contrast, cone-beam x-ray differential phase-contrast computed tomography (DPC-CT) has attracted significant interest. The current proposed FDK reconstruction algorithm with the Hilbert imaginary filter will induce severe cone-beam artifacts when the cone-beam angle becomes large. In this paper, we propose an algebraic iterative reconstruction (AIR) method for cone-beam DPC-CT and report its experiment results. This approach considers the reconstruction process as the optimization of a discrete representation of the object function to satisfy a system of equations that describes the cone-beam DPC-CT imaging modality. Unlike the conventional iterative algorithms for absorption-based CT, it involves the derivative operation to the forward projections of the reconstructed intermediate image to take into account the differential nature of the DPC projections. This method is based on the algebraic reconstruction technique, reconstructs the image ray by ray, and is expected to provide better derivative estimates in iterations. This work comprises a numerical study of the algorithm and its experimental verification using a dataset measured with a thr...Continue Reading

References

Jan 1, 1983·Computers in Biology and Medicine·B D Smith
Jul 1, 1997·Journal of Computer Assisted Tomography·F BeckmannO Günnewig
Dec 12, 1997·Physics in Medicine and Biology·D ChapmanD Sayers
Nov 14, 1998·Physics in Medicine and Biology·H KudoM Defrise
Jul 9, 2003·IEEE Transactions on Medical Imaging·Ming Jiang, Ge Wang
Mar 16, 2007·Physical Review Letters·F PfeifferC David
Dec 13, 2007·Medical Physics·Jean-Baptiste ThibaultJiang Hsieh
Aug 15, 2008·Physics in Medicine and Biology·Emil Y Sidky, Xiaochuan Pan
Feb 25, 2009·Medical Physics·Jing WangLei Xing
Apr 17, 2009·Physics in Medicine and Biology·Martin BechFranz Pfeiffer
Aug 8, 2005·Optics Express·Timm WeitkampEric Ziegler
Jul 21, 2010·Proceedings of the National Academy of Sciences of the United States of America·Peiping ZhuMarco Stampanoni
Jun 1, 2011·Analytical and Bioanalytical Chemistry·Kai ZhangZiyu Wu
Aug 31, 2011·Journal of X-ray Science and Technology·Zhentian WangStampanoni Marco
Sep 29, 2012·Proceedings of the National Academy of Sciences of the United States of America·Arne TapferFranz Pfeiffer
Dec 4, 2012·Zeitschrift für medizinische Physik·Jian FuFranz Pfeiffer

❮ Previous
Next ❯

Methods Mentioned

BETA
x-ray

Software Mentioned

LENOVO
AIR

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.