This definition appears very rarely
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Samples in periodicals archive:
Two months earlier the patient was diagnosed with nonoperable CTEPH by means of haemodynamics, echocardiography, ventilation/perfusion scan and pulmonary angiography.
If time permits cardiology workup, ventilation/perfusion scans and dental evaluations should be completed.
COPD is the world's 3rd biggest killer but Bioxydyn's diagnostic imaging technologies have the potential to change the way in which lung disease is diagnosed and monitored by providing non-invasive regional assessments of lung ventilation/perfusion ratio (V/Q) and measures of changes in pulmonary vascular function.
When a pregnant patient has a suspected pulmonary embolism, what are the typical embryo doses from a chest CT and a ventilation/perfusion study?
PE was symptomatic and diagnosed by either high-probability ventilation/perfusion scan, nondiagnostic VQ scan associated with diagnostic findings for DVT, or CT scan.
With the increased index of suspicion for pulmonary embolism, the patient underwent a ventilation/perfusion scan which revealed an area of matched ventilation and perfusion defects in the right upper lobe while the rest of the lung was normal.
A ventilation/perfusion scan was performed, which demonstrated normal lung perfusion--no defects.
Currently, the primary non-invasive diagnostic imaging test for PE is a ventilation/perfusion exam which is deemed indeterminate in over 60% of patients.