Journal of magnetic resonance imaging : JMRI
-
J Magn Reson Imaging · Jul 2013
Comparative Study Controlled Clinical TrialImaging the early response to chemotherapy in advanced lung cancer with diffusion-weighted magnetic resonance imaging compared to fluorine-18 fluorodeoxyglucose positron emission tomography and computed tomography.
To evaluate the feasibility of diffusion-weighted magnetic resonance imaging (DW-MRI) for assessment of the early response to chemotherapy and outcome in patients with advanced lung cancer through comparison with fluorine-18 fluorodeoxyglucose positron emission tomography (FDG-PET) and computed tomography (CT). ⋯ DW-MRI can be used to predict prognosis in patients with advanced lung cancer.
-
J Magn Reson Imaging · Jul 2013
Comparative StudyEnhancement of liver and pancreas on late hepatic arterial phase imaging: quantitative comparison among multiple gadolinium-based contrast agents at 1.5 Tesla MRI.
To compare enhancement of the liver and pancreas quantitatively on late hepatic arterial phase images among various gadolinium-based contrast agents (GBCAs) at 1.5 Tesla (T) MRI. ⋯ Our study describes % enhancement of liver and pancreas using various GBCAs. The data may provide reference material on relaxation properties of GBCAs in vivo.
-
J Magn Reson Imaging · Jul 2013
Comparative StudyComparison of breathhold, navigator-triggered, and free-breathing diffusion-weighted MRI for focal hepatic lesions.
To compare the breathhold, navigator-triggered, and free-breathing techniques in diffusion-weighted magnetic resonance imaging (MRI) for the evaluation of focal liver lesions on a 3.0T system. ⋯ Both breathhold and non-breathhold DWI are comparable for the detection or characterization of focal liver lesions at 3.0T; however, non-breathhold DWI provides higher SNR and CNR than breathhold DWI. In addition, although free-breathing and navigator-triggered DWI sequences show similar performance for 3.0T liver imaging, free-breathing DWI is more time efficient than navigator-triggered DWI.
-
J Magn Reson Imaging · Jul 2013
Diffusion tensor tractography of the uncinate fasciculus: pitfalls in quantitative analysis due to traumatic volume changes.
To demonstrate the sensitivity of quantitative diffusion tensor tractography to traumatic injury of the uncinate fasciculus (UF), and to evaluate the effect of volume changes on the accuracy of quantitative analysis. ⋯ Posttraumatic FA and MD changes and volume reductions are common in the tractography of UF. Trauma-induced volume changes can cause misleading whole-tract mean FA values. Therefore, additional volume-based analysis of the central part is beneficial for clinical assessment.
-
J Magn Reson Imaging · Jul 2013
Texture analysis in assessment and prediction of chemotherapy response in breast cancer.
To assess the efficacy of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI)-based textural analysis in predicting response to chemotherapy in a cohort of breast cancer patients. ⋯ This work highlights that textural differences between groups (based on response, nodal status, and triple negative groupings) are apparent and appear to be most evident 1-3 minutes postcontrast administration. The fact that significant differences for certain texture parameters and groupings are consistently observed is encouraging.