Journal ArticleDOI
Theoretical Analysis of Relaxation During Shaped Pulses. I. The Effects of Short T1 and T2
TLDR
In this paper, a detailed theoretical treatment of spin-lattice and spin-spin relaxation effects which occur during the application of long selective pulses is presented, and the effects of T1 and T2 on the degradation of the frequency-domain profile are discussed for a wide variety of pulse shapes.About:
This article is published in Journal of Magnetic Resonance, Series A.The article was published on 1993-06-01. It has received 43 citations till now. The article focuses on the topics: Bandwidth-limited pulse & Pulse duration.read more
Citations
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Journal ArticleDOI
An integrated program for amplitude-modulated RF pulse generation and re-mapping with shaped gradients.
TL;DR: An overview of a relatively comprehensive computer program that includes a version of the Shinnar-Le Roux (SLR) algorithm and also incorporates an algorithm for re-mapping a selective RF pulse onto a new dwell time with modulated gradients.
Journal ArticleDOI
Optimal control design of excitation pulses that accommodate relaxation
TL;DR: An optimal control algorithm for mitigating the effects of T(1) and T(2) relaxation during the application of long pulses is derived and the utility of designing pulses to produce specific phase in the final magnetization is presented.
Journal ArticleDOI
Measuring human cardiac tissue sodium concentrations using surface coils, adiabatic excitation, and twisted projection imaging with minimal T2 losses.
TL;DR: To measure tissue sodium concentrations in the human heart with 23Na MRI using a surface coil, thereby eliminating the effects of inhomogeneous excitation by surface coils and minimizing T1 and T2 relaxation.
Journal ArticleDOI
In vivo GABA editing using a novel doubly selective multiple quantum filter.
TL;DR: A novel multiple quantum filtering method is proposed that uses a doubly selective pulse termed Delays Alternating with Nutations for Tailored Excitation (DANTE) for multiple quantum preparation that selectively prepares GABA‐3 and GABA‐4 into a multiple quantum state and suppresses all other resonances.