Journal of magnetic resonance imaging : JMRI
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J Magn Reson Imaging · Mar 2010
Case ReportsWhole-body MR imaging for the evaluation of McCune-albright syndrome.
This paper is a detailed case study of a seven-year-old girl who developed precocious puberty. The young girl experienced bilateral breast enlargement, vaginal discharge, and multiple areas of "cafe-au-lait" pigmentation on the skin. The skeletal radiographs showed multiple bone lesions which were suggestive of polyostotic fibrous dysplasia. ⋯ The MRI showed approximately the same number of osseous lesions compared to the skeletal radiographs. In addition, the MRI detected a cystic lesion localized in the pelvis that raised the possibility of an ovarian-follicular cyst. This case suggests that whole-body MRI might be a promising method for the evaluation and follow-up of polyostotic fibrous dysplasia, a disease with diffuse involvement of the musculoskeletal system.
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J Magn Reson Imaging · Mar 2010
Carotid arterial wall MRI at 3T using 3D variable-flip-angle turbo spin-echo (TSE) with flow-sensitive dephasing (FSD).
To evaluate the effectiveness of flow-sensitive dephasing (FSD) magnetization preparation in improving blood signal suppression of three-dimensional (3D) turbo spin-echo (TSE) sequence (SPACE) for isotropic high-spatial-resolution carotid arterial wall imaging at 3T. ⋯ FSD-SPACE is a time-efficient 3D imaging technique for carotid arterial wall with superior spatial resolution and blood signal suppression.
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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
Randomized Controlled Trial Multicenter Study Comparative StudyEnhancement of liver parenchyma after injection of hepatocyte-specific MRI contrast media: a comparison of gadoxetic acid and gadobenate dimeglumine.
To compare enhancement of liver parenchyma in MR imaging after injection of hepatocyte-specific contrast media. ⋯ In the delayed, hepatocyte-specific phase, liver enhancement after injection of gadoxetic acid was superior to that obtained with gadobenate dimeglumine.
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J Magn Reson Imaging · Feb 2010
Randomized Controlled Trial Multicenter Study Comparative StudyComparison of gadodiamide-enhanced MR angiography to intraarterial digital subtraction angiography for evaluation of renal artery stenosis: results of a phase III multicenter trial.
To evaluate the efficacy and safety of 0.1 mmol/kg gadodiamide administration for contrast-enhanced magnetic resonance angiography (MRA) in detecting hemodynamically relevant renal artery stenosis (RAS) when compared with intraarterial digital subtraction angiography (IA-DSA) as the gold standard. ⋯ Gadodiamide administration at the labeled dose of 0.1 mmol/kg for contrast-enhanced MRA achieved equivalent results compared to IA-DSA in evaluation of RAS and was well tolerated.