Journal of magnetic resonance imaging : JMRI
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J Magn Reson Imaging · Jun 2019
Long-term reactions to pulsatile tinnitus are marked by weakened short-range functional connectivity within a brain network in the right temporal lobe.
There have been recent efforts to characterize brain functional activity features in patients with pulsatile tinnitus (PT). These efforts have revealed evidence of aberrant functional connectivity (FC) of the right middle temporal gyrus (MTG) in PT patients with prolonged disease duration. ⋯ 4 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2018.
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J Magn Reson Imaging · May 2019
MR-Based Radiomics Nomogram of Cervical Cancer in Prediction of the Lymph-Vascular Space Invasion preoperatively.
Lymph-vascular space invasion (LVSI) is an unfavorable prognostic factor in cervical cancer. Unfortunately, there are no current clinical tools for the preoperative prediction of LVSI. ⋯ 4 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2019;49:1420-1426.
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J Magn Reson Imaging · May 2019
Feasibility study of a single breath-hold, 3D mDIXON pulse sequence for late gadolinium enhancement imaging of ischemic scar.
Late gadolinium enhancement (LGE) imaging is well validated for the diagnosis and quantification of myocardial infarction (MI). 2D LGE imaging involves multiple breath-holds for acquisition of short-axis slices to cover the left ventricle (LV). 3D LGE methods cover the LV in a single breath-hold; however, breath-hold duration is typically long with images susceptible to motion artifacts. ⋯ 1 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2019;49:1437-1445.
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J Magn Reson Imaging · May 2019
Rapid and accurate dictionary-based T2 mapping from multi-echo turbo spin echo data at 7 Tesla.
Using lower refocusing flip angles in multi-echo turbo spin echo (ME-TSE) sequences at ultra-high magnetic field leads to non-monoexponential signal decay and overestimation of T2 values due to stimulated and secondary echoes. ⋯ 1 Technical Efficacy: Stage 1 J. Magn. Reson. Imaging 2019;49:1253-1262.
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J Magn Reson Imaging · May 2019
Comparative StudyComparing signal-to-noise ratio for prostate imaging at 7T and 3T.
In MRI, the signal-to-noise ratio (SNR) theoretically increases with B0 field strength. However, because of attenuation of the radiofrequency (RF) fields at 7T, it is not certain if this SNR gain can be realized for prostate imaging. ⋯ 2 Technical Efficacy: Stage 1 J. Magn. Reson. Imaging 2019;49:1446-1455.