Journal of magnetic resonance imaging : JMRI
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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.
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J Magn Reson Imaging · Feb 2004
Comparative StudyMagnetic resonance portography using contrast-enhanced fat-saturated three-dimensional steady-state free precession imaging.
To assess the feasibility of contrast-enhanced fat-saturated three-dimensional steady-state free precession (FIESTA) imaging for contrast-enhanced magnetic resonance (MR) portography. ⋯ Contrast-enhanced fat-saturated three-dimensional FIESTA was valuable for MR portography, with flexible time window and high vascular signals. This imaging may allow for other post-contrast imaging options before portography and release patients from consecutive breath-holds.
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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
Automatic model-based evaluation of magnetic resonance-guided radio frequency ablation lesions with histological correlation.
To develop a model-based method for automatic evaluation of radio frequency (RF) ablation treatment using magnetic resonance (MR) images. ⋯ The method is accurate both in describing MR-apparent boundaries and in predicting histological response and has applications in lesion visualization, volume estimation, and treatment evaluation.