منابع مشابه
Spurious lung perfusion ventilation defect on planar ventilation-perfusion scan detected by SPECT imaging
Pulmonary embolism (PE) is a preventable cause of morbidity and mortality which needs prompt recognition. Ventilation-perfusion (V/Q) scan is a well-established diagnostic test for evaluation of suspected PE. We report a 32-year-old woman with history of rheumatologic disease and acute dyspnea, who was referred for V/Q scintigraphy. The planar images revealed multiple mismatched defects through...
متن کاملImaging lung perfusion.
From the first measurements of the distribution of pulmonary blood flow using radioactive tracers by West and colleagues (J Clin Invest 40: 1-12, 1961) allowing gravitational differences in pulmonary blood flow to be described, the imaging of pulmonary blood flow has made considerable progress. The researcher employing modern imaging techniques now has the choice of several techniques, includin...
متن کاملHIGHLIGHTED TOPIC Imaging Lung Physiology Imaging lung perfusion
Hopkins SR, Wielpütz MO, Kauczor HU. Imaging lung perfusion. J Appl Physiol 113: 328 –339, 2012. First published May 17, 2012; doi:10.1152/japplphysiol.00320.2012.—From the first measurements of the distribution of pulmonary blood flow using radioactive tracers by West and colleagues (J Clin Invest 40: 1–12, 1961) allowing gravitational differences in pulmonary blood flow to be described, the i...
متن کاملSingle-shot quantitative perfusion imaging of the human lung.
The major drawback to quantitative perfusion imaging using arterial spin labeling (ASL) techniques is the need to acquire two images (tag and control), which must be subtracted in order to obtain a perfusion-weighted image. This can potentially result in misregistration artifacts, especially in lung imaging, due to varying lung inflation levels in different breath-holds. In this work a double i...
متن کاملVentilation and perfusion magnetic resonance imaging of the lung
A close interaction between the respiratory pump, pulmonary parenchyma and blood circulation is essential for a normal lung function. Many pulmonary diseases present, especially in their initial phase, a variable regional impairment of ventilation and perfusion. In the last decades various techniques have been established to measure the lung function. Besides the global pulmonary function tests...
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ژورنال
عنوان ژورنال: Journal of Applied Physiology
سال: 2012
ISSN: 8750-7587,1522-1601
DOI: 10.1152/japplphysiol.00320.2012