Lung Perfusion Scan (V/Q Scan)
Detect pulmonary embolism and assess lung blood flow using ventilation-perfusion nuclear imaging.
Duration
45-60 minutes
Availability
Monday - Saturday
What Is Lung Perfusion Scan (V/Q Scan)?
A lung perfusion scan (often combined with ventilation scan as V/Q scan) evaluates blood flow through your lungs. The perfusion scan shows which areas of the lungs are receiving blood, while the ventilation scan shows which areas are receiving air. Comparing these images helps diagnose pulmonary embolism and other lung conditions.
Why Is It Needed?
This scan is essential for diagnosing pulmonary embolism (blood clots in lungs), evaluating chronic blood clots, assessing lung function before surgery, detecting regional lung blood flow abnormalities, and evaluating patients who cannot have CT angiography due to kidney problems or contrast allergies.
How Does It Work?
For perfusion: Tiny particles labeled with radioactive tracer (Tc-99m MAA) are injected into a vein. These particles temporarily lodge in lung capillaries, showing blood flow distribution. For ventilation: You breathe in radioactive gas or aerosol, which shows air distribution in lungs. The gamma camera takes images from multiple angles, creating a complete picture of lung function.
Benefits
New to gamma camera scans?
Our patient guide explains how gamma scans work, the different types of scans, what happens during the procedure and how to prepare.
Read the complete gamma scan guidePreparation Guidelines
Book Your Appointment
Schedule your Lung Perfusion Scan (V/Q Scan) scan today and get accurate diagnostic results.
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Call +91 80546 61001Important Information
- • Bring previous medical reports
- • Arrive 15 minutes early
- • Inform about medications
- • Wear comfortable clothing
- • Results within 24-48 hours