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[Estimation of pulmonary intravascular and extravascular spaces by 99mTc-albumin lung distribution ratio and 201Tl lung uptake ratio]. 1990

T Fujii, and M Tanaka, and M Hongo, and J Hirayama, and Y Hirose, and S Okubo, and T Kobayashi, and K Handa, and K Yano, and K Yokota
First Department of Internal Medicine, Shinshu University School of Medicine.

In order to estimate the pulmonary extravascular and intravascular spaces, lung uptake ratio of 201Tl (L/T) and lung distribution ratio of 99mTc-albumin (H/T'), expressed as ratios of total counts of the bilateral lungs to the administered doses of the radionuclides, were obtained from the both scintigrams with 201Tl and 99mTc-albumin respectively, using a scintillation camera coupling to a minicomputer. Mean values of L/T and H/T' were 2.8 +/- 0.8% and 4.9 +/- 1.4% in the controls, 3.9 +/- 1.8% and 5.3 +/- 1.9% in heart diseases without left heart failure, and 7.0 +/- 2.2% and 7.1 +/- 2.9% in those with left heart failure, respectively. Ratios of L/T to H/T' in diffuse interstitial pneumonia and heart diseases, especially in cases with left heart failure were higher than those in controls. The values of H/T' and L/T were inversely proportional to cardiac output and cardiac index, and the values of L/T were directly proportional to pulmonary artery wedge pressure, but the discrepancies of the relationship between these values and some clinical findings including cardiac output, cardiac index, pulmonary artery wedge pressure and other findings of left heart failure, were observed in not a few cases. In the regional pulmonary areas, lung uptake of 201Tl was in parallel with pulmonary perfusion in many cases, but the discrepancies between them were demonstrated in some cases, too. These methods seem to be useful for the estimation of the pulmonary extravascular and extravascular spaces, and for the detection of dysfunction of the left ventricle.

UI MeSH Term Description Entries
D008168 Lung Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood. Lungs
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D011877 Radionuclide Imaging The production of an image obtained by cameras that detect the radioactive emissions of an injected radionuclide as it has distributed differentially throughout tissues in the body. The image obtained from a moving detector is called a scan, while the image obtained from a stationary camera device is called a scintiphotograph. Gamma Camera Imaging,Radioisotope Scanning,Scanning, Radioisotope,Scintigraphy,Scintiphotography,Imaging, Gamma Camera,Imaging, Radionuclide
D002302 Cardiac Output The volume of BLOOD passing through the HEART per unit of time. It is usually expressed as liters (volume) per minute so as not to be confused with STROKE VOLUME (volume per beat). Cardiac Outputs,Output, Cardiac,Outputs, Cardiac
D006331 Heart Diseases Pathological conditions involving the HEART including its structural and functional abnormalities. Cardiac Disorders,Heart Disorders,Cardiac Diseases,Cardiac Disease,Cardiac Disorder,Heart Disease,Heart Disorder
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013668 Technetium Tc 99m Aggregated Albumin A gamma-emitting radionuclide imaging agent used for the diagnosis of diseases in many tissues, particularly in cardiovascular and cerebral circulation. Tc 99m-Albumin,Tc 99m-Albumin Colloid,99m-Tc-HSA,99mTc-Albures,99mTc-HSA,99mTc-Human Serum Albumin,Tc-99m-HAM,Tc-99m-MAA,Tc-99m-Microalbumin,Tc-HAMM,Tc99m-Albumin,Technetium-99m Albumin Colloid,99mTc Albures,99mTc Human Serum Albumin,99mTcAlbures,Albumin Colloid, Technetium-99m,Albumin, 99mTc-Human Serum,Colloid, Tc 99m-Albumin,Colloid, Technetium-99m Albumin,Serum Albumin, 99mTc-Human,Tc 99m Albumin,Tc 99m Albumin Colloid,Tc 99m HAM,Tc 99m MAA,Tc 99m Microalbumin,Tc HAMM,Tc99m Albumin,Technetium 99m Albumin Colloid
D013794 Thallium Radioisotopes Unstable isotopes of thallium that decay or disintegrate emitting radiation. Tl atoms with atomic weights 198-202, 204, and 206-210 are thallium radioisotopes. Radioisotopes, Thallium
D015633 Extravascular Lung Water Water content outside of the lung vasculature. About 80% of a normal lung is made up of water, including intracellular, interstitial, and blood water. Failure to maintain the normal homeostatic fluid exchange between the vascular space and the interstitium of the lungs can result in PULMONARY EDEMA and flooding of the alveolar space. Lung Water, Extravascular,Extra Vascular Lung Water,Lung Water, Extra Vascular,Water, Extravascular Lung

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