Journal of magnetic resonance imaging : JMRI
-
J Magn Reson Imaging · Mar 2019
Increased iron deposition of deep cerebral gray matter structures in hemodialysis patients: A longitudinal study using quantitative susceptibility mapping.
The cerebral iron overload in hemodialysis patients has been reported in a previous study, in which the evaluation of the changes in iron content could be affected by the cross-sectional analysis. ⋯ 2 Technical Efficacy: Stage 1 J. Magn. Reson. Imaging 2019;49:786-799.
-
J Magn Reson Imaging · Mar 2019
Quantitative Assessment of Regional Dynamic Airway Collapse in Neonates via Retrospectively Respiratory-Gated 1 H Ultrashort Echo Time MRI.
Neonatal dynamic tracheal collapse (tracheomalacia, TM) is a common and serious comorbidity in infants, particularly those with chronic lung disease of prematurity (bronchopulmonary dysplasia, BPD) or congenital airway or lung-related conditions such as congenital diaphragmatic hernia (CDH), but the underlying pathology, impact on clinical outcomes, and response to therapy are not well understood. There is a pressing clinical need for an accurate, objective, and safe assessment of neonatal TM. ⋯ 2 Technical Efficacy: Stage 3 J. Magn. Reson. Imaging 2019;49:659-667.
-
J Magn Reson Imaging · Mar 2019
Multiparametric MRI model with dynamic contrast-enhanced and diffusion-weighted imaging enables breast cancer diagnosis with high accuracy.
The MRI Breast Imaging-Reporting and Data System (BI-RADS) lexicon recommends that a breast MRI protocol contain T2 -weighted and dynamic contrast-enhanced (DCE) MRI sequences. The addition of diffusion-weighted imaging (DWI) significantly improves diagnostic accuracy. This study aims to clarify which descriptors from DCE-MRI, DWI, and T2 -weighted imaging are most strongly associated with a breast cancer diagnosis. ⋯ 3 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2019;49:864-874.
-
J Magn Reson Imaging · Mar 2019
Comparative StudyComparison of the Diagnostic Performance of Synthetic Versus Acquired High b-Value (1500 s/mm2 ) Diffusion-Weighted MRI in Women With Breast Cancers.
Acquired high b-value (>1000 s/mm2 ) diffusion-weighted imaging (DWI) has its strength in lesion detection. However, it is not easily used, due to a lower signal-to-noise ratio, eddy current distortions, and prolonged acquisition times. Synthetic DWI does not have these disadvantages because it is based on indirect acquisition, calculated in a voxel-wise manner. ⋯ 3 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2019;49:857-863.