Assessment of Pulmonary Capillary Blood Pulsation in Severe COPD Using Hyperpolarized 129Xe CSSR

Keywords

abnormal abnormalities absent actually amplitude applied assessment audience autopsy blood blue breath butler cancellation capacity capillaries capillary cardiovascular cell characterize chemical chest chronic clinical clinically coherence coil commonly consent corrected cosine currently deaths decay defects delay described destroy destruction detected disappearance discernible disease dissolved drawn emphysematous enriched excitation exponential exposure feasible fitted fixed flow fluctuations form frequency function global gold gradient grant hand healthy heavy held history hold holding hypertension illness included induced induction inhalation inhaled initial integrals integrated investigated john lack lead least lung magnetization matched might nature need oscillations partially particularly peak peaks periodic periodicity phys physician physicians plasma polarized possibly predicted prototype pulmonary pulsation pulsations pulse pulses ranging recent recovery reflect regional residing residual rhythmic saturation separate sets severe since smoke smoking solutions sought spectra spectral spectroscopy squared stage starting studies subjects submitted sufficiently supervised surprisingly system target temporal throughout tissue variable various ventilation visible volume xenon years