Mismatch between 99mTc-DTPA aerosol and 81mKr lung ventilation scintigraphy: a pitfall of radionuclide imaging. 1990

H Hoshi, and S Dadparvar, and R Promisloff, and W J Slizofski, and S Brown, and L B Glab, and L W Brady
Division of Nuclear Medicine, Hahnemann University, Philadelphia, PA 19130-1192.

Pulmonary ventilation and perfusion scintigraphies were performed using 99mTc-MAA, 81mKr, and 99mTc-DTPA aerosol in a patient with asthma. Lung perfusion scintigraphy and 99mTc-DTPA aerosol scintigraphy showed multiple matching defects, however, 81mKr ventilation scintigraphy showed mismatch with lung perfusion scintigraphy. A pitfall of this examination was discussed.

UI MeSH Term Description Entries
D007727 Krypton Radioisotopes Unstable isotopes of krypton that decay or disintegrate emitting radiation. Kr atoms with atomic weights 74-77, 79, 81, 85, and 87-94 are radioactive krypton isotopes. Radioisotopes, Krypton
D008168 Lung Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood. Lungs
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
D004369 Pentetic Acid An iron chelating agent with properties like EDETIC ACID. DTPA has also been used as a chelator for other metals, such as plutonium. DTPA,Diethylenetriamine Pentaacetic Acid,Pentetates,Penthanil,Ca-DTPA,CaDTPA,CaNa-DTPA,Calcium Trisodium Pentetate,DETAPAC,Indium-DTPA,Mn-Dtpa,Pentacin,Pentacine,Pentaind,Pentetate Calcium Trisodium,Pentetate Zinc Trisodium,Sn-DTPA,Zinc-DTPA,Indium DTPA,Pentaacetic Acid, Diethylenetriamine,Pentetate, Calcium Trisodium,Zinc DTPA
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D000369 Aged, 80 and over Persons 80 years of age and older. Oldest Old
D001249 Asthma A form of bronchial disorder with three distinct components: airway hyper-responsiveness (RESPIRATORY HYPERSENSITIVITY), airway INFLAMMATION, and intermittent AIRWAY OBSTRUCTION. It is characterized by spasmodic contraction of airway smooth muscle, WHEEZING, and dyspnea (DYSPNEA, PAROXYSMAL). Asthma, Bronchial,Bronchial Asthma,Asthmas
D014692 Ventilation-Perfusion Ratio The ratio of alveolar ventilation to simultaneous alveolar capillary blood flow in any part of the lung. (Stedman, 25th ed) Ratio, Ventilation-Perfusion,Ratios, Ventilation-Perfusion,Ventilation Perfusion Ratio,Ventilation-Perfusion Ratios

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