Author: tmiihighfield

We will present our recent work in many sessions at this year’s ISMRM. Make sure you come say hi!

	Title	Format	Session	Day	Time
Priti Balchandani	High Field Imaging	Educational Talk	MR Physics & Techniques for Clinicians – Educational Course	4-Jun	17:20
Hadrien Dyvorne	Diffusion-Weighted Matched-phase Adiabatic Spin Echo (DW-MASE) Sequence for Ultrahigh Field Brain Diffusion-Weighted Imaging	E-poster	Diffusion Sequences & Sampling	1-Jun	10:45
Hadrien Dyvorne	Improved Abdominal Diffusion Weighted Imaging at 3T using Optimized Shinnar-Le Roux Adiabatic Radiofrequency Pulses	Poster	Body DWI, Technical Development & Contrast	2-Jun	10:00
Hadrien Dyvorne	Slice-selective adiabatic T2 preparation using a modified STABLE pulse	Poster	RF Pulse Design	3-Jun	16:00
Rebecca Feldman	7T MRSI using Semi-Adiabatic Spectral-spatial Spectroscopic Imaging (SASSI) for improved B1-insensitivity in refocusing and reduced chemical shift artifact	E-poster	UHF Acquisitions:   Neuro	1-Jun	15:15
Rebecca Feldman	7T Imaging of patients with focal epilepsy who appear non-lesional in diagnostic 1.5T and 3T MRI scans: first results	Power-Pitch	High Field Applications	4-Jun	10:30
Rafael O’Halloran	Correction of Artifacts Caused by Transient Eddy Currents In Simultaneous Multi-Slice dMRI	E-poster	Diffusion Acquisition	1-Jun	10:45
Rafael O’Halloran	Widespread White Matter Integrity Abnormalities in Cocaine Use Disorder Assessed by High Resolution dMRI and Tractography	E-poster	Addiction, Drug Exposure, Pain, Sleep	2-Jun	10:00
Bei Zhang	7T 22ch Wrap-around Coil Array for Cervical Spinal Cord Imaging	Talk	RF Coil Arrays	3-Jun	13:30
Bei Zhang	Evaluating the SNR performance of using dielectric pads with multiple channel RF coils at 7T	Poster
Bei Zhang	RF Modeling	Educational Talk	RF Engineering: Coils – Educational Course	31-May	11:30

This paper presents a new adiabatic RF pulse pair to perform multiband spin echo imaging. The applications of this work are accelerated diffusion and functional MRI, which will be explored soon.

Check it out: Rebecca’s paper

This work, which presents a highly accelerated version of 4D velocity imaging, got recently accepted in Radiology and is accessible in early view:

Abdominal 4D Flow MR Imaging in a Breath Hold: Combination of Spiral Sampling and Dynamic Compressed Sensing for Highly Accelerated Acquisition

Real-time spiral acquisition of a cheerful member of our lab.

In the paper we show how to prospectively correct the motion-induced phase errors in Diffusion-Weighted SSFP using a fast real-time navigation system. The correction covers linear and constant phase terms, basically those arising from rigid-body motion. This is only one piece of the puzzle though; we still need to deal with the pulsing motion of the brain that causes non-linear errors…

You can find the paper on MRM’s website or just grab it from the link below.

http://onlinelibrary.wiley.com/doi/10.1002/mrm.25159/abstract

OHalloran2014_RealTime_SSFP