Journal of magnetic resonance imaging : JMRI
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J Magn Reson Imaging · Mar 2004
Effect of gender on in vivo cartilage magnetic resonance imaging T2 mapping.
To determine if gender is a significant variable for in vivo magnetic resonance imaging (MRI) T2-mapping of knee articular cartilage in young asymptomatic volunteers. ⋯ In young, healthy volunteers, the magnitude and spatial dependency of cartilage T2 does not differ with gender.
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J Magn Reson Imaging · Mar 2004
Clinical TrialMR-guided radiofrequency ablation of hepatic malignancies at 1.5 T: initial results.
To assess the feasibility of magnetic resonance (MR)-guided radiofrequency ablation (RFA) of hepatic malignancies using a high-field MR scanner. ⋯ MR-guided RFA of hepatic malignancies in a closed-bore high-field MR scanner is technically feasible and safe. It can be advantageous in locations considered unfavorable for CT-guided puncture or in patients in which iodinated contrast material is contraindicated.
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J Magn Reson Imaging · Mar 2004
Usefulness of contrast kinetics for predicting and monitoring tissue changes in muscle following thermal therapy in long survival studies.
To investigate Gd-DTPA kinetics as indicators of subacute and subchronic histopathological changes following focused ultrasound (FUS) thermal therapy for improved evaluation. ⋯ Our results suggest that Gd-DTPA kinetics can complement conventional MR for improved evaluation of FUS thermal therapy by providing finer differentiation of necrotic states, inflammation, and repair processes.
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J Magn Reson Imaging · Feb 2004
Randomized Controlled Trial Comparative Study Clinical TrialTime-resolved contrast-enhanced three-dimensional pulmonary MR-angiography: 1.0 M gadobutrol vs. 0.5 M gadopentetate dimeglumine.
To compare contrast characteristics and image quality of 1.0 M gadobutrol with 0.5 M Gd-DTPA for time-resolved three-dimensional pulmonary magnetic resonance angiography (MRA). ⋯ No relevant advantages of 1.0 M gadobutrol over 0.5 M Gd-DTPA were observed for time-resolved pulmonary MRA in this study. Potential explanations are T2/T2*-effects caused by the high intravascular concentration when using high injection rates.
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J Magn Reson Imaging · Feb 2004
Blood oxygenation level-dependent MRI of cerebral gliomas during breath holding.
To assess the cerebrovascular responses to short breath holding of cerebral gliomas using blood oxygenation level-dependent (BOLD) magnetic resonance imaging (MRI). ⋯ BOLD MRI during short breath holding can disclose differential cerebrovascular response between normal tissue and cerebral glioma.