✍ Scribed by Gregory J. Moore; Mirko I. Hrovat; R. Gilberto González
No coin nor oath required. For personal study only.
A technique has been developed to perform simultaneous multinuclear magnetic resonance imaging and spatially localized spectroscopy. It is inherently superior in terms of time efficiency over current approaches which use sequential or interleaved methods. The pulse sequence uses a parallel excitation and acquisition scheme to acquire multislice proton images concurrently with phosphorus-31 spectroscopic images. Because the phosphorus signal is necessarily collected in the presence of a gradient, an essential element of the technique is an algorithm to extract pure chemical-shift information.
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A method is proposed for carrying out chemical-shift imaging simultaneously on several nuclei ( \({ }^{1} \mathrm{H}\) and \({ }^{31} \mathrm{P}\) in this example), using a commercial clinical NMR imager fitted with a second \(\mathrm{RF}\) channel and a dual-tuned birdcage coil to fit the human hea
## Abstract ## Purpose To compare noninvasive MRI and magnetic resonance spectroscopy (MRS) methods with liver biopsy to quantify liver fat content. ## Materials and Methods Quantification of liver fat was compared by liver biopsy, proton MRS, and MRI using in‐phase/out‐of‐phase (IP/OP) and plus