Application and assessment of a robust elastic motion correction algorithm to dynamic MRI.

European Radiology
K-H HerrmannJ R Reichenbach

Abstract

The purpose of this study was to assess the performance of a new motion correction algorithm. Twenty-five dynamic MR mammography (MRM) data sets and 25 contrast-enhanced three-dimensional peripheral MR angiographic (MRA) data sets which were affected by patient motion of varying severeness were selected retrospectively from routine examinations. Anonymized data were registered by a new experimental elastic motion correction algorithm. The algorithm works by computing a similarity measure for the two volumes that takes into account expected signal changes due to the presence of a contrast agent while penalizing other signal changes caused by patient motion. A conjugate gradient method is used to find the best possible set of motion parameters that maximizes the similarity measures across the entire volume. Images before and after correction were visually evaluated and scored by experienced radiologists with respect to reduction of motion, improvement of image quality, disappearance of existing lesions or creation of artifactual lesions. It was found that the correction improves image quality (76% for MRM and 96% for MRA) and diagnosability (60% for MRM and 96% for MRA).

References

Feb 1, 1997·European Journal of Radiology·S H Heywang-KöbrunnerC Küchler
Oct 26, 1999·IEEE Transactions on Medical Imaging·D RueckertD J Hawkes
Jan 22, 2000·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·R LuchtG Brix
Apr 29, 2003·IEEE Transactions on Medical Imaging·Julia A SchnabelDavid J Hawkes
Jul 23, 2003·IEEE Transactions on Medical Imaging·Torsten RohlfingMichael A Jacobs
Sep 4, 2004·Information Processing in Medical Imaging : Proceedings of the ... Conference·Jianchun He, Gary E Christensen
Sep 11, 2004·Physics in Medicine and Biology·Weiguo LuThomas R Mackie

❮ Previous
Next ❯

Citations

Mar 1, 2011·European Journal of Radiology·Falk MieseHans-Jörg Wittsack
Mar 13, 2014·Nihon Naika Gakkai zasshi. The Journal of the Japanese Society of Internal Medicine·Masaaki Akahane
Jul 20, 2011·Journal of Magnetic Resonance Imaging : JMRI·Karl-Heinz HerrmannJürgen R Reichenbach
Oct 31, 2009·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Zhaoyang FanDebiao Li
Oct 24, 2014·Skeletal Radiology·Anja Müller-LutzFalk Miese

❮ Previous
Next ❯

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.

Related Papers

Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
K J FristonR Turner
Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
W F EddyD C Noll
Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Jan Menke
© 2022 Meta ULC. All rights reserved