Journal of magnetic resonance imaging : JMRI
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J Magn Reson Imaging · Feb 2010
3 Tesla MRI of patients with a vagus nerve stimulator: initial experience using a T/R head coil under controlled conditions.
To assess safety of clinical MRI of the head in patients with implanted model 100, 102, and 103 vagus nerve stimulation (VNS) Therapy Systems (Cyberonics, Inc., Houston, TX) in 3.0 Tesla MRI (GE Healthcare, Milwaukee, WI). ⋯ Safe clinical MRI head scanning of patients with implanted VNS is shown to be feasible on a GE Signa Excite 3T MRI system using one specific T/R head coil. These results apply to this particular MRI system configuration. Extrapolation or generalization of these results to more general or less controlled imaging situations without supporting data of safety is highly discouraged.
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J Magn Reson Imaging · Feb 2010
Diffusion tensor MRI: preliminary anisotropy measures and mapping of breast tumors.
To investigate whether diffusion tensor imaging (DTI) measures of anisotropy in breast tumors are different from normal breast tissue and can improve the discrimination between benign and malignant lesions. ⋯ Diffusion anisotropy is significantly lower in breast cancers than normal tissue, which may reflect alterations in tissue organization. Our preliminary results suggest that FA adds incremental value over ADC alone for discriminating malignant from normal tissue but does not help with distinguishing benign from malignant lesions.
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J Magn Reson Imaging · Feb 2010
Detection of hepatocellular carcinoma (HCC) using super paramagnetic iron oxide (SPIO)-enhanced MRI: Added value of diffusion-weighted imaging (DWI).
To evaluate whether diffusion-weighted imaging (DWI) improves the detection of hepatocellular carcinoma (HCC) on super paramagnetic iron oxide (SPIO)-enhanced MRI. ⋯ The SPIO-enhanced MRI + DWI set outperformed the SPIO-enhanced MRI set for depicting HCC.
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J Magn Reson Imaging · Feb 2010
Comparative Study Controlled Clinical TrialComparison of two different injection rates of gadoxetic acid for arterial phase MRI of the liver.