Journal ArticleDOI
The signal-to-noise ratio of the nuclear magnetic resonance experiment
D.I Hoult,Rex Edward Richards +1 more
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TLDR
A fresh approach to the calculation of signal-to-noise ratio, using the Principle of Reciprocity, is formulated, to give the same results as the traditional method of calculation, but its advantage lies in its ability to predict the ratio for other coil configurations.About:
This article is published in Journal of Magnetic Resonance.The article was published on 1976-10-01. It has received 1070 citations till now. The article focuses on the topics: Coil noise & Electromagnetic coil.read more
Citations
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PatentDOI
Simultaneous acquisition of spatial harmonics (SMASH): ultra-fast imaging with radiofrequency coil arrays
TL;DR: SiMultaneous Acquisition of Spatial Harmonics (SMASH) as mentioned in this paper is a partially parallel imaging strategy, which is readily integrated with many existing fast imaging sequences, yielding multiplicative time savings without a significant sacrifice in spatial resolution or signal-to-noise ratio.
Journal ArticleDOI
The principle of reciprocity in signal strength calculations—a mathematical guide
TL;DR: A simple and easily reproduced bench experiment that validates the principle is described in this paper, where elementary mathematics are employed to derive simple equations for the B1 fields in both the negatively and the positively rotating frames.
Journal ArticleDOI
1H MR Spectroscopy of the Brain: Absolute Quantification of Metabolites
TL;DR: Important methodological aspects in an absolute quantification strategy are addressed, including radiofrequency coil properties, calibration procedures, spectral fitting methods, cerebrospinal fluid content correction, macromolecule suppression, and spectral editing.
Journal ArticleDOI
Neoadjuvant Chemotherapy of Locally Advanced Breast Cancer: Predicting Response with in Vivo 1H MR Spectroscopy—A Pilot Study at 4 T
Sina Meisamy,Patrick J. Bolan,Eva H. Baker,Robin L. Bliss,Evin Gulbahce,Lenore I. Everson,Michael T. Nelson,Tim H Emory,Todd M Tuttle,Douglas Yee,Michael Garwood +10 more
TL;DR: It is suggested that the change in tCho concentration between baseline and 24 hours after the first dose of PST can serve as an indicator for predicting clinical response to doxorubicin-based chemotherapy in locally advanced breast cancer.
Journal ArticleDOI
The X-Space Formulation of the Magnetic Particle Imaging Process: 1-D Signal, Resolution, Bandwidth, SNR, SAR, and Magnetostimulation
TL;DR: This paper derives the 1-D MPI signal, resolution, bandwidth requirements, signal-to-noise ratio (SNR), specific absorption rate, and slew rate limitations, and concludes with experimental data measuring the point spread function for commercially available SPIO nanoparticles.
References
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Journal ArticleDOI
A fast recovery probe and receiver for pulsed nuclear magnetic resonance spectroscopy
TL;DR: In this article, a single coil probe and receiver for use in pulsed nuclear magnetic resonance experiments are described, and the impedance transformation properties of a one-quarter wavelength line are used to protect the receiver during the radio-frequency pulse.
Journal ArticleDOI
Limits of measurement in magnetic resonance
H D W Hill,R E Richards +1 more
TL;DR: In this article, various factors which affect the signal-to-noise ratio with which a magnetic resonance can be detected are discussed and the methods of optimizing the parameters involved are described and typical values are given.
Journal ArticleDOI
Coupling scheme and probe damper for pulsed nuclear magnetic resonance single coil probe
TL;DR: A coupling scheme and a probe damper for use with a pulsed nuclear magnetic resonance single coil probe are described in this article, and the designs for both circuits incorporate the unique properties of PIN diodes.