Evaluation of Pulmonary Systemic Blood Flow Page 1 late with variations in venous pressure (3). If
the RBC pool is labelled with @Tc,and if frame mode, ECG-gated dynamic gamma camera image …

Electron beam computed tomography (EBCT) is a potentially useful modality to quantitate
regional pulmonary flow (RPF) with minimal invasiveness, in part because it has good …

MATERIALS AND METHODS Patients are positioned for a posterior view be fore a
scintillation camera equipped with a low energy diverging collimatort. The patient first re …

Pulmonary epithelial permeability was first measured by Jones et al.[1]. We have adapted
their technique for use with a gamma camera. Both regional half-time values and …

This report focuses on preliminary experiments designed to determine regional blood flows
and air, blood, and tissue contents at end expiratory lung volume in anesthetized, paralyzed …

MATERIALS AND METHODS Nine male volunteers provided a normal control group: five
aged 21-25 yr and four aged 30-34; none of these had a history of tobacco smoking. In …

Organ blood flow as a fraction of cardiac output can be measured from the first pass
time/activity curves recorded over the organ and over 'arterial'regions of interst (ROIs). The …

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

Noninvaslve EstImatIon of Pulmonary Arterial Pressure by Analysis of Pulmonary Blood-Flow
Distribution Page 1 Previous work has demonstrated relationships between the distribution of …

METHODS Patient procedure. The arrangement of equipment for the investigation is
illustrated in Fig. 1. The pa tient lies on his back with a gamma camera placed below a low …