Jan 19, 2023 · What is a VQ scan used for? Providers most often use a VQ scan to diagnose a blood clot in your lungs (pulmonary embolism, or PE). A pulmonary embolism can be fatal if left untreated. It’s also used to diagnose chronic thromboembolic pulmonary hypertension (CTEPH), a cause of high blood pressure in the blood vessels in your lungs.

Feb 26, 2018 · A pulmonary ventilation/perfusion (or VQ) scan is a series of two lung scans. The scans are either performed together or one after the other, but are often referred to as one procedure.

Mar 25, 2025 · V/Q (ventilation/perfusion) scan is a scintigraphic examination of the lung that evaluates pulmonary vasculature perfusion and segmental bronchoalveolar tree ventilation.

Jan 13, 2023 · Pulmonary ventilation (V) and Perfusion (Q) scan, also known as lung V/Q scan, is a nuclear test that uses the perfusion scan to delineate the blood flow distribution and the ventilation scan to measure airflow distribution in the lungs.

A V/Q scan consists of two imaging tests that look for certain lung problems. The tests are: A ventilation scan measures how air moves in and out of your lungs; A perfusion scan measures circulation (how blood flows in the lungs) The two scans may be done separately or together. A V/Q scan uses a small amount of a radioactive substance called a ...

A ventilation/perfusion lung scan, also called a V/Q lung scan, or ventilation/perfusion scintigraphy, is a type of medical imaging using scintigraphy and medical isotopes to evaluate the circulation of air and blood within a patient's lungs, [1] [2] in order to determine the ventilation/perfusion ratio.

Aug 5, 2023 · A VQ scan is short for Lung or Pulmonary Ventilation (V) and Perfusion (Q) Scans. It’s an imaging test that measures air and blood flow in your lungs. Your doctor may request...

Aug 24, 2018 · A ventilation–perfusion (VQ) scan is a nuclear medicine scan that uses radioactive material (radiopharmaceutical) to examine airflow (ventilation) and blood flow (perfusion) in the lungs. The aim of the scan is to look for evidence of any …

Mar 24, 2023 · The ventilation-perfusion scan is a nuclear scan so named because it studies both airflow (ventilation) and blood flow (perfusion) in the lungs. The initials V-Q are used in mathematical equations that calculate airflow and blood flow.

A ventilation-perfusion (VQ) scan measures airflow (ventilation) and tracks blood flow (perfusion) in the lungs. A VQ lung scan is considered a single procedure, but involves two separate scans. Both use a very restricted amount of radioactive material to capture images of the lungs.