[PDF] Top 20 Quantitative Mapping of Lung Ventilation Using Hyperpolarized Gas Magnetic Resonance Imaging

... fractional ventilation imaging technique with the eventual goal of translation to human ...HP gas mixing and delivery device and an accelerated MRI acquisition ...scheme. Imaging acceleration ... See full document

... of hyperpolarized 3 He measurements in healthy volunteers and COPD subjects and found the ADC reproducibility to be high for same day as well as 7-day ...for ventilation defect volume (VDV) was also found ... See full document

... Murphy K, van Ginneken B, Reinhardt J M, Kabus S, Ding K, Deng X, Cao K, Du K, Christensen G E, Garcia V, Vercauteren T, Ayache N, Commowick O, Malandain G, Glocker B, Paragios N, Navab N, Gorbunova V, Sporring J, de ... See full document

... the lung, there is a “strong likelihood that, at some stage, chronic obstructive airway disease causes significant abnormalities in the distribution of ventilation, and presumably in gas ...COPD ... See full document

... on using 3 He MRI to phenotype ex- ...a hyperpolarized noble gas research centre alone is a large endeavor ...noble gas, the global supply of this gas is declining and its price is ... See full document

... cell lung cancer patients survive after 5-years post radiation therapy ...for lung cancer, it is limited by Radiation-Induced Lung Injury ...RP using imaging to improve outcomes of RT ... See full document

... disruption could be caused by onset of cancer, metabolic and respiratory acidosis and alkalosis. In particular, onset of severe RILI could lead to hypoxic tissue environment that would result in a build-up of lactic ... See full document

... L/min using a concentration of 5% isofluorane (Abbot Laboratories, ...10:1 using an infusion pump (Univentor, Zejtun Malta) with a delivery rate of 50 ...rat using 2-0 silk suture (Ethicon, ... See full document

... smoking-related lung diseases in 2010 1,2 , which include both chronic obstructive pulmonary disease (COPD) and lung ...for lung diseases that can be attributed to smoking continues to rise 3 , while ... See full document

... by using the same sequence parameters each time, allowing a comparison of relative changes in image ...that lung units with very low ventilation, resulting in a long time constant for gas ... See full document

... Note.—Unless otherwise specified, all data are means 6 standard deviations, with ranges in parentheses. All measurements were obtained before application of the bronchodilator. Spirometry was performed with a rolling ... See full document

... as hyperpolarized. Hyperpolarized noble gases (HNG) are prepared using a spin exchange optical pumping process (36) and can be directly used for lung ...HNG imaging permits direct ... See full document

... for gas leaks either from the suture around the trachea or the lungs ...the imaging facility during which time they were repeatedly inflated with 8 – 10 mL of air at 30 – 60 minute ...from lung ... See full document

... time-resolved magnetic resonance angiography (MRA) was performed to further characterize the VM, which depicted a high-flow VM (Figure 4) with arterial supply from superficial palmar arch branches of both ... See full document

... alternative to PET would be dynamic contrast-enhanced computed tomography [CT] or perfusion CT. Perfusion CT methodology has improved profoundly in recent years. It is now a practical technique for the clinical ... See full document

... Following localizer scans, first, a calibration of the 13 C MR flip angle was performed using the urea vial. A series of free induction decay measurements with increasing transmitter voltage was acquired ... See full document

... steady-state imaging to inde- pendently image and quantify two different populations of fibrin-targeted nanoparticles, perfluorooctylbromide (PFOB) or perfluoro-15-crown-5-ether (CE), based on their unique ... See full document

... Our study has several limitations. First, the number of rats at each time point was relatively small, but it con- forms to the statistical regulation. Experimental errors may affect the results because of individual ... See full document

... radio frequency coil of the instrument. The drying cell was so constructed that the air stream passes along the outside walls of the cuvette, which is filled with saturated glass bead pack, and then passes over the open ... See full document

... the imaging uncertainty and lack of need to boost smal- ler cancer ...weighted imaging will generate contrast for more accurate and even semi-automated GTV ... See full document