How Does a VQ Scan Work? The VQ scan is a nuclear scan. It measures airflow, called ventilation, and blood flow, called perfusion, in your lungs. The V and Q make up a math equation that helps doctors ...

Young women at risk of having a pulmonary embolism -- a potential life-threatening blockage in a lung artery -- should first undergo a ventilation/perfusion lung scan rather than a CT angiogram, ...

MDCT pulmonary angiography is replacing the ventilation-perfusion lung scan to diagnose suspected pulmonary embolism in hospitalized patients, say researchers from Rhode Island Hospital in Providence.

Rapid and accurate diagnosis of pulmonary embolism will improve survival and quality of life because treatment decreases mortality and the likelihood that thromboembolic pulmonary hypertension or the ...