0000000000490474

AUTHOR

Janet Friedrich

showing 2 related works from this author

Magnetic Resonance Imaging and Computational Fluid Dynamics of High Frequency Oscillatory Ventilation (HFOV)

2011

In order to better understand the mechanisms of gas transport during High Frequency Oscillatory Ventilation (HFOV) Magnetic Resonance Imaging (MRI) with contrast gases and numerical flow simulations based on Computational Fluid Dynamics(CFD) methods are performed.

PhysicsMRTmedicine.diagnostic_testbusiness.industryPhysics::Medical PhysicsMagnetic resonance imagingMechanicsComputational fluid dynamicsPhysics::Fluid DynamicsNuclear magnetic resonancemedicineCentral airwaybusinessCFD VentilationHigh frequency oscillatory ventilation
researchProduct

Lung ventilation- and perfusion-weighted Fourier decomposition magnetic resonance imaging: In vivo validation with hyperpolarized3He and dynamic cont…

2012

The purpose of this work was to validate ventilation-weighted (VW) and perfusion-weighted (QW) Fourier decomposition (FD) magnetic resonance imaging (MRI) with hyperpolarized (3)He MRI and dynamic contrast-enhanced perfusion (DCE) MRI in a controlled animal experiment. Three healthy pigs were studied on 1.5-T MR scanner. For FD MRI, the VW and QW images were obtained by postprocessing of time-resolved lung image sets. DCE acquisitions were performed immediately after contrast agent injection. (3)He MRI data were acquired following the administration of hyperpolarized helium and nitrogen mixture. After baseline MR scans, pulmonary embolism was artificially produced. FD MRI and DCE MRI perfus…

medicine.medical_specialtymedicine.diagnostic_testbusiness.industryMagnetic resonance imagingAtelectasisAir trappingmedicine.diseaseVentilation/perfusion ratioMagnetic resonance angiographyDynamic contrast-enhanced MRIBreathingMedicineRadiology Nuclear Medicine and imagingRadiologymedicine.symptombusinessNuclear medicinePerfusionMagnetic Resonance in Medicine
researchProduct