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  • Title: Scintigraphic analysis of hemodynamics in a patient with a single large pulmonary arteriovenous fistula.
    Author: Suga K, Kuramitsu T, Yoshimizu T, Nakanishi T, Yamada N, Utsmi H.
    Journal: Clin Nucl Med; 1992 Feb; 17(2):110-3. PubMed ID: 1563179.
    Abstract:
    A pulmonary perfusion study was performed on a 54-year-old man with a single large pulmonary arteriovenous fistula (aneurysmal type) using Tc-99m MAA. On the static imaging, a defect corresponding to the location of the mass and right-to-left shunt was clearly documented. Decreased uptake of Tc-99m MAA in the lung field surrounding the lesion was observed and was thought to reflect a "steal" of blood flow by the fistula. One advantage of using radionuclide angiography with Tc-99m MAA rather than with Tc-99m pertechnetate was that it more easily provided a time-activity curve that added useful quantitative information about the altered pulmonary hemodynamics.
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