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Doctor insights on: Ventilation Perfusion Scan Performed

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Why would a pulmonary ventilation/perfusion scan be performed?

Why would a pulmonary ventilation/perfusion scan be performed?

Pulmonary Embolism: The main reason to perform a pulmonary ventilation-perfusion (v-q) scan is to rule out the presence of a pulmonary embolus (commonly a blood clot). There are several forms of pulmonary thrombo-embolism, but the most common situation is one of sudden onset, leading to sob. Chronic thrombo-embolism leads to development of sob over a long period and it can also be diagnosed with a v-q scan. ...Read more

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Breathing (Definition)

Breathing is the way we take in oxygen and expel carbon dioxide (co2) through out lungs. When our lungs expand we take fresh air in that contains oxygen and then when our lungs ...Read more


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What is a ventilation-perfusion scan?

What is a ventilation-perfusion scan?

Radiological test: A ventilation-perfusion (v/q) scan is a specialized radiological lung test comparing mismatches between any part of your lung that still exchanges oxygen (affected in COPD e.g.) and any part that is not receiving blood flow. This is done through radio-tracers. A mismatch means there is a clot in that part of the lung hindering blood flow. Diseases & surgery of the lung complicate interpretation. ...Read more

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What person needs a lung ventilation/perfusion scan?

What person needs a lung ventilation/perfusion scan?

: Folks with a suspicion for blood clot in the lung. This may be due to spells of breathlessness or chest pain or both. More common if there is blood clots in the leg (phlebitis). ...Read more

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What are the differences between pulmonary perfusion scan and pulmonary ventilation scan?

Lung V-Q scan: Ventilation scanning involves the patient breathing in a radiotracer while perfusion scanning involves injecting the radiotracer through an iv. The procedure is done usually to evaluate the presence of absence of a pulmonary embolism (usually a blood clot) and involves comparing the radiotracer's presence in the alveoli vs. Its presence in the lung circulation. ...Read more

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What does blood clot in the lungs (pulmonary embolus) show on ventilation perfusion scan?

Lack of blood flow: A ventilation perfusion scan is a test for a blood clot in the lungs, or pulmonary embolism. If there is a blood clot, an area of the lung will not be perfused, but will be ventilated, and therefore a mismatch will be seen. ...Read more

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Dr order pulm. Ventilation/perfusion scan for tachardyia and sob. Have normal chest x-ray, ekg, pulmonary test and blood work. Odds it's an embolism?

Odds don't count: Stastitics are only guidelines and don't apply to individual cases. A lung scan (v/q) is accurate if it is considered high probability or normal. The " gold standard" is computerized angiogram of the chest which is very accurate both to diagnose or exclude pulmonary embolism. Talk to your md. If you have no medical contraindications, i would prefer the ct angiogram. ...Read more

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What is the function of a vent perfusion scan?

Dx Pulmonary Embolus: A ventillation perfusion lung scan is a nuclear test used to diagnose a blood clot to the lung or pulmonary embolus. Medication is injected into your vein and you also breath a medication into the lung to look for a mismatch on a nuclear imaging camera which would suggest a pulmonary embolus. ...Read more

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How is a cardiac perfusion scan used?

How is a cardiac perfusion scan used?

Find Bockages: Myocardial perfusion imaging is typically combined with exercise. This test is used to diagnose coronary artery disease in patients with typical symptoms or patients with high risk for coronary artery disease. ...Read more

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What could cause difficulties with a cardiac perfusion scan?

Movement: Am unclear as to your question, but if i understand right, then moving during the scan would cause problems. Not removing a bra containing wires could cause problems. Severe claustrophobia can also cause problems. ...Read more

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To find out what diffuse reversible ischaemic in the apex means on my perfusion scan?

To find out what diffuse reversible ischaemic in the apex means on my perfusion scan?

Demand not met: it means that there are areas of the heart that likely do not get enought blood when exercise. The demand for oxygen in the cardiac muscle are higher than what it is provided to them ...Read more

Perfusion (Definition)

Perfusion usually refers to blood flow into an ...Read more