Radionuclide angiography of the liver and spleen
| Autor: | Michael Kutner, W. Dean Warren, Y. Tarcan, Eric B. Rypins, J. Michael Henderson, R. Sarper, William A. Fajman, John T. Galambos |
|---|---|
| Rok vydání: | 1981 |
| Předmět: |
medicine.medical_specialty
medicine.diagnostic_test Pertechnetate Peripheral intravenous business.industry Spleen General Medicine Blood flow chemistry.chemical_compound medicine.anatomical_structure Radionuclide angiography chemistry Ventricle medicine Shunt patency Surgery Radiology Nuclear medicine business Perfusion |
| Zdroj: | The American Journal of Surgery. 142:574-579 |
| ISSN: | 0002-9610 |
| DOI: | 10.1016/0002-9610(81)90429-3 |
| Popis: | Radioactivity versus time curves were generated for the first pass of technetium-99m pertechnetate through the left ventricle, kidneys, spleen and liver, after a 20 mCi peripheral intravenous bolus injection. The rate of change of radioactivity in these organs before recirculation is proportional to blood flow through the organ. The hepatic perfusion index, defined as the ratio of portal flow to total hepatic blood flow, was correlated with the angiographic grade of portal perfusion. The hepatic perfusion index in seven normal subjects was 66.0 ± 3.4 percent (mean ± standard error of the mean), and in 22 cirrhotic patients with decreasing angiographic perfusion of grades 1 to 4 the index was 54 ± 4.6, 37 ± 2.6, 17 ± 4.7 and 3 ± 1.1 percent, respectively. The correlation between the calculated perfusion index and the angiographic grade of portal flow was highly significant (p |
| Databáze: | OpenAIRE |
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