While the effect of gravity on the pulmonary circulation is well documented, the distribution of
pulmonary flow under gravity independent conditions is not as well understood. Single …

OBJECTIVE: To evaluate the effect of gravity and lung inflation on pulmonary perfusion
heterogeneity in human lung using an arterial spin labeling (ASL) sequence called flow …

Single-photon emission computerized tomography of the lung with 99mTc-labeled human
albumin macroaggregates (99mTc-MAA) was used in six healthy subjects to study the three …

Quantification of Spatial Blood Flow Distribution in Isolate... : Investigative Radiology
Quantification of Spatial Blood Flow Distribution in Isolated Canine Lung : Investigative …

Single-photon emission-computed tomography (SPECT) on intact dogs and humans
suggests that one aspect of regional blood flow in the lung (Qr) is independent of gravity, eg …

The purpose of this study was to evaluate the relationship between left and right pulmonary
arterial flow measured by cine phase contrast magnetic resonance imaging (cine PCMRI) …

1. With the advent of single-photon emission computerized tomography, controversy has
arisen with regard to the significance of gravitational influences on regional pulmonary …

The purpose of this study was to evaluate the effects of gravity and lung volume on regional
pulmonary perfusion using technetium-99m macroaggregated albumin (99m Tc MAA) single …

Pulmonary Perfusion and Density Gradients in Page 1 GENERAL NUCLEAR MEDICINE
Pulmonary Perfusion and Density Gradients in Healthy Volunteers Helen M. Almquist, John …

Ventilation and perfusion lung imaging with SPECT/CT permits accurate delineation of the
individual lobes of the lungs using the CT images for use in ascribing the relative functional …