Pulmonary > V-Q exam

Ventilation/Perfusion Imaging Examination

Technique & Radiopharmaceuticals

Perfusion Agent- Tc-MAA

Ventilation Agents:

Xenon-133

Xenon 127

Tc-99m DTPA Aerosol

Tc-99m Technegas

Krypton-81m

Modifications to the Standard V/Q exam

V/Q Scintigraphy in Pregnancy

Etiologies of Characteristic Patterns on V/Q Scan:

V/Q Mismatch

Heterogeneous perfusion pattern

Decreased perfusion to one lung

Artifacts on V/Q scintigraphy