What are the side effects of VQ scan?
What are the side effects of VQ scan?
What are the risks of having a VQ scan? There is a low risk with having a VQ scan. You may get a small bruise on the area of your skin where the injection went in. In rare cases, you may have an allergic reaction to the tracer.
Can a VQ scan be wrong?
Objective Although ventilation–perfusion scintigraphy (V/Q scan) is a robust and well established diagnostic test for suspected pulmonary embolism, false negative cases still exist.
Do you need contrast for VQ scan?
The most common clinical indication for V/Q lung scan is to assess the likelihood of pulmonary embolism (PE) when contrast or radiation exposure is contraindicated.
How accurate is VQ scan?
VQ scans can accurately diagnose PE that might lead to morbidity and mortality if left untreated. VQ lung scans for clinically significant PE have a higher accuracy than CTPA when proper pre test patient selection is applied.
How is a V / Q scan used to diagnose PE?
Interpretive criteria developed from the PIOPED , PIOPED II, or PISAPED trials can be used to determine the probability of a pulmonary embolism on a V/Q scan. For the diagnosis of PE, a V/Q scan has a reported sensitivity of 77.4% and specificity of 97.7% when compared to CT pulmonary angiography (CTPA) or digital subtraction angiography (DSA) 3.
What is the sensitivity of a PE scan?
Results: With the exclusion of patients with intermediate or low probability, the sensitivity of a high probability (PE present) scan finding was 77.4% (95% confidence interval [CI]: 69.7%, 85.0%), while the specificity of very low probability or normal (PE absent) scan finding was 97.7% (95% CI: 96.4%, 98.9%).
Which is more sensitive a V / Q scan or CT scan?
For the diagnosis of PE, a V/Q scan has a reported sensitivity of 77.4% and specificity of 97.7% when compared to CT pulmonary angiography (CTPA) or digital subtraction angiography (DSA) 3.
Is there a VQ scan for pulmonary embolism in Australia?
Many referring doctors in Australia are unaware of this and the negative effect it has had on diagnostic performance of the VQ scan in large international multicentre trials like the Prospective Investigation of Pulmonary Embolism Diagnosis (PIOPED) studies.