Magnetization spoiling in radial FLASH contrast-enhanced MR digital subtraction angiography.

Journal of Magnetic Resonance Imaging : JMRI
Parmede VakilTimothy J Carroll

Abstract

To increase the in-plane spatial resolution and image update rates of 2D magnetic resonance (MR) digital subtraction angiography (DSA) pulse sequences to 0.57 × 0.57 mm and 6 frames/sec, respectively, for intracranial vascular disease applications by developing a radial FLASH protocol and to characterize a new artifact, not previously described in the literature, which arises in the presence of such pulse sequences. The pulse sequence was optimized and artifacts were characterized using simulation and phantom studies. With Institutional Review Board (IRB) approval, the pulse sequence was used to acquire time-resolved images from healthy human volunteers and patients with x-ray DSA-confirmed intracranial vascular disease. Artifacts were shown to derive from inhomogeneous spoiling due to the nature of radial waveforms. Gradient spoiling strategies were proposed to eliminate the observed artifact by balancing gradient moments across TR intervals. The resulting radial 2D MR DSA sequence (2.6 sec temporal footprint, 6 frames/sec with sliding window factor 16, 0.57 × 0.57 mm in-plane) demonstrated small vessel detail and corroborated x-ray DSA findings in intracranial vascular imaging studies. Appropriate gradient spoiling in radial ...Continue Reading

References

Oct 1, 1991·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Y ZurL J Neuringer
Sep 1, 1988·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·S J RiedererR J Herfkens
Nov 1, 1988·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·A P CrawleyR M Henkelman
Dec 1, 1987·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·K A KraftP R Kishore
Jan 1, 1986·Magnetic Resonance Imaging·M D MitchellP M Joseph
Jul 1, 1993·Journal of Magnetic Resonance Imaging : JMRI·J J van VaalsJ A den Boer
Nov 1, 1995·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·V RascheR Proksa
Sep 1, 1996·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·F R KorosecC A Mistretta
Oct 1, 1996·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Y WangR L Ehman
Mar 1, 1997·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·J HennigR Strecker
Feb 20, 1999·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·J G Pipe, P Menon
Jan 22, 2000·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·D C PetersC A Mistretta
Mar 14, 2000·Journal of Magnetic Resonance Imaging : JMRI·J W GoldfarbR R Edelman
Jul 12, 2002·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Mark A GriswoldAxel Haase
Sep 5, 2002·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Andrew V BargerCharles A Mistretta
Jul 6, 2004·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·He ZhuYi Wang
Dec 13, 2005·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·C A MistrettaY Wu
Jan 25, 2007·IEEE Transactions on Medical Imaging·Stefanie WinkelmannOlaf Doessel
Oct 31, 2007·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Ty A CashenTimothy J Carroll
Feb 21, 2009·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Hyun J JeongTimothy J Carroll
Jan 26, 2010·Journal of Magnetic Resonance Imaging : JMRI·Julia V VelikinaCharles A Mistretta
Jun 1, 2010·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Hyun J JeongTimothy J Carroll

❮ Previous
Next ❯

Citations

Jul 6, 2013·Journal of Cardiovascular Magnetic Resonance : Official Journal of the Society for Cardiovascular Magnetic Resonance·Verena HoerrCornelius Faber
Jul 24, 2013·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Sumeeth V JonathanTimothy J Carroll
Jun 23, 2015·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Volkert RoeloffsJens Frahm
Aug 7, 2017·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Sumeeth V Jonathan, William A Grissom
Jul 8, 2015·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Stefan WundrakVolker Rasche

❮ 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
Bryan KresslerYi Wang
Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Lauren KeithCharles A Mistretta
Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Yan WuF R Korosec
Magnetic Resonance in Medical Sciences : MRMS : an Official Journal of Japan Society of Magnetic Resonance in Medicine
Masayuki KumashiroYuji Watanabe
Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Hyun J JeongTimothy J Carroll
© 2022 Meta ULC. All rights reserved