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  • Title: Generation of parametric images during routine Tc-99m PYP inhalation/Tc-99m MAA perfusion lung scintigraphy. Technical note.
    Author: Miron SD, Wiesen EJ, Feiglin DH, Cohen AM, Bellon EM.
    Journal: Clin Nucl Med; 1991 Jul; 16(7):501-5. PubMed ID: 1834387.
    Abstract:
    A simple technique is described for generating ventilation/perfusion ratio and perfusion/ventilation ratio images from the posterior Tc-99m PYP aerosol inhalation and Tc-99m MAA perfusion images obtained during routine lung scintigraphy. These images highlight areas of ventilation/perfusion incongruence--mismatch or reverse mismatch--that may sometimes be difficult to detect on conventional images.
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