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 …

The Perfusion lung scan is currently the simplest and most readily available method for
obtaining semiquantitative estimates of regional pulmonary blood flow and for localizing …

SPECT systems should affect nuclear medicine because of their ability to eliminate overlying
and underlying radionuclide activity, their capacity for total volume imaging, and the …

Since the introduction of I-131 labeled macroaggregates in 1964, noninvasive techniques
involving injection of radiolabeled agents and remote detection of emitted radiation have …

A new technique using quantitative transmission radiography affords a clinical assessment
of regional pulmonary function in man. This has been useful as an adjunct to perfusion lung …

Three pigs with surgically created aortopulmonary shunts and two pigs who had sham
operation were scanned in a fast computed tomography (CT) scanner, the dynamic spatial …

Emission tomography provides three-dimensional, quantitative images of the distribution of
radiotracers used to mark physiological, metabolic, or pathological processes. Quantitative …

Ventilation/perfusion single-photon emission computed tomography (V/Q SPECT) is the
scintigraphic technique of choice for the diagnosis of pulmonary embolism and many other …

The topographic matching of alveolar ventilation (V̇ A) and perfusion (Q̇) is the main
determinant of gas exchange efficiency of the lung. However, no pulmonary functional …

A combination of lung scanning for evaluation of perfusion and gamma densigraphy for
evaluation of regional ventilation was applied in various clinical situations and found to be …