Journal of magnetic resonance imaging : JMRI
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J Magn Reson Imaging · Feb 2017
Pulmonary MRI of neonates in the intensive care unit using 3D ultrashort echo time and a small footprint MRI system.
To determine the feasibility of pulmonary magnetic resonance imaging (MRI) of neonatal lung structures enabled by combining two novel technologies: first, a 3D radial ultrashort echo time (UTE) pulse sequence capable of high spatial resolution full-chest imaging in nonsedated quiet-breathing neonates; and second, a unique, small-footprint 1.5T MRI scanner design adapted for neonatal imaging and installed within the neonatal intensive care unit (NICU). ⋯ 2 J. Magn. Reson. Imaging 2017;45:463-471.
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J Magn Reson Imaging · Feb 2017
Comparative StudyDiagnostic value of integrated PET/MRI for detection and localization of prostate cancer: Comparative study of multiparametric MRI and PET/CT.
To evaluate the diagnostic value of integrated positron emission tomography/magnetic resonance imaging (PET/MRI) compared with conventional multiparametric MRI and PET/computed tomography (CT) for the detailed and accurate segmental detection/localization of prostate cancer. ⋯ 2 J. Magn. Reson. Imaging 2017;45:597-609.
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J Magn Reson Imaging · Feb 2017
Effects of arterial transit delay on cerebral blood flow quantification using arterial spin labeling in an elderly cohort.
To investigate whether measurement of arterial transit time (ATT) can improve the accuracy of arterial spin labeling (ASL) cerebral blood flow (CBF) quantification in an elderly cohort due to the potentially prolonged ATT in the cohort. ⋯ 1 J. Magn. Reson. Imaging 2017;45:472-481.
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J Magn Reson Imaging · Feb 2017
Hyperecho PROPELLER-MRI: Application to rapid high-resolution motion-insensitive T2 -weighted black-blood imaging of the carotid arterial vessel wall and plaque.
To demonstrate the usefulness of hyperecho and PROPELLER (HEP) for carotid arterial vessel wall imaging by using a quantitative comparison with conventional methods. PROPELLER is a motion-insensitive turbo spin-echo (TSE) sequence and has recently been utilized in magnetic resonance (MR) plaque imaging instead of double inversion recovery TSE (DIR-TSE). Wider blade-width, higher k-space density, and an improved blood suppression effect result in better image quality. In this study we introduce a new combination of HEP. ⋯ 3 J. Magn. Reson. Imaging 2017;45:515-524.
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To evaluate the accuracy of R2* models (1/T2 * = R2*) for chemical shift-encoded magnetic resonance imaging (CSE-MRI)-based proton density fat-fraction (PDFF) quantification in patients with fatty liver and iron overload, using MR spectroscopy (MRS) as the reference standard. ⋯ 1 J. Magn. Reson. Imaging 2017;45:428-439.