Diagnostic quality assessment of compressed sensing accelerated magnetic resonance neuroimaging

Journal of Magnetic Resonance Imaging : JMRI
Mohammad KayvanradTerry Peters

Abstract

To determine the efficacy of compressed sensing (CS) reconstructions for specific clinical magnetic resonance neuroimaging applications beyond more conventional acceleration techniques such as parallel imaging (PI) and low-resolution acquisitions. Raw k-space data were acquired from five healthy volunteers on a 3T scanner using a 32-channel head coil using T2 -FLAIR, FIESTA-C, time of flight (TOF), and spoiled gradient echo (SPGR) sequences. In a series of blinded studies, three radiologists independently evaluated CS, PI (GRAPPA), and low-resolution images at up to 5× accelerations. Synthetic T2 -FLAIR images with artificial lesions were used to assess diagnostic accuracy for CS reconstructions. CS reconstructions were of diagnostically acceptable quality at up to 4× acceleration for T2 -FLAIR and FIESTA-C (average qualitative scores 3.7 and 4.3, respectively, on a 5-point scale at 4× acceleration), and at up to 3× acceleration for TOF and SPGR (average scores 4.0 and 3.7, respectively, at 3× acceleration). The qualitative scores for CS reconstructions were significantly better than low-resolution images for T2 -FLAIR, FIESTA-C, and TOF and significantly better than GRAPPA for TOF and SPGR (Wilcoxon signed rank test, P < 0.05)...Continue Reading

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Aug 19, 2014·Magnetic Resonance Imaging·Mohammad H KayvanradTerry M Peters

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Citations

Dec 13, 2017·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Hendrik MatternOliver Speck
Feb 1, 2018·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Jinseong JangUNKNOWN Alzheimer's Disease Neuroimaging Initiative
Jan 20, 2018·AJNR. American Journal of Neuroradiology·S Toledano-MassiahJ Hodel
Jul 3, 2019·European Radiology·Bénédicte Marie Anne DelattreMaria Isabel Vargas
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Feb 6, 2020·Journal of Neuroradiology. Journal De Neuroradiologie·Blanche BapstJérôme Hodel
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Nov 10, 2021·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Sen JiaHairong Zheng

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