Journal of Magnetic Resonance Imaging
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Motion-compensated real-time MR thermometry augmented by tracking coils.
To develop and evaluate a real-time proton resonant frequency (PRF) based MR thermometry method with a novel motion compensation technique, using linear phase model and active tracking coils. A 6F catheter with multiple tracking coils and radiofrequency (RF) ablation tip was built for ex vivo experi...
Differentiating white matter lesions in multiple sclerosis and migraine using monoexponential and biexponential diffusion measurements.
To compare the white matter lesions seen in multiple sclerosis and migraine using monoexponential and high b-value biexponential diffusion measurements. Diffusion-weighted images were acquired on a 3.0-Tesla magnetic resonance imaging system. Diffusion parameters were estimated using monoexponential...
Prospective comparison of 3T MRI with diffusion-weighted imaging and MDCT for the preoperative TNM staging of gastric cancer.
To compare the diagnostic performance of 3T magnetic resonance imaging (MRI) with diffusion-weighted imaging (DWI) and multidetector-row computed tomography (MDCT) for the preoperative TNM staging of gastric cancer. This prospective study was approved by our Institutional Review Board. Forty-nine co...
T1ρ MRI of human musculoskeletal system.
We focus on cartilage biochemical composition, basic principles of T1ρ MRI, implementation of T1ρ pulse sequences, biochemical validation, and summarize the potential applications of the T1ρ MRI technique in MSK diseases including osteoarthritis (OA), anterior cruciate ligament (ACL) injury, and kne...
Regional analysis of femoral head perfusion following displaced fractures of the femoral neck.
To assess regional variations in the arterial and venous blood supply to the femoral head following displaced fracture of the femoral neck using dynamic contrast enhanced (DCE)-MRI quadrant analysis. A total of 27 subjects with displaced femoral neck fractures were enrolled in the study. Quadrant sp...
Validation of a semiautomated spinal cord segmentation method.
To validate semiautomated spinal cord segmentation in healthy subjects and patients with neurodegenerative diseases and trauma. Forty-nine healthy subjects, as well as 29 patients with amyotrophic lateral sclerosis, 19 with spinal muscular atrophy, and 14 with spinal cord injuries were studied. Cord...
Clinical use of oxygen-enhanced T1 mapping MRI of the lung: reproducibility and impact of closed versus loose fit oxygen delivery system.
To evaluate the reproducibility of oxygen-enhanced magnetic resonance imaging (MRI), and the influence of different gas delivery methods, in a clinical environment. Twelve healthy volunteers were examined on two visits with an inversion recovery snapshot fast low angle shot sequence on a 1.5 T syste...
On the impact of physiological noise in spinal cord functional MRI.
We review the main sources of physiological noise in spinal cord fMRI and discuss the main approaches useful for its mitigation. © 2013 Wiley Periodicals, Inc....