Cardiothoracic Imaging
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Pulmonary embolus, case 1




Notes

Angiogram
Nuclear ventillation
Nuclear perfusion


COMMENTS

Chest radiograph in this patient showed bibasilar subsegmental atelectasis but X-rays of patients suspected of pulmonary emboli are often unrevealing. The combination of nuclear ventilation-perfusion (V/Q)scintigraphy is generally used to display the secondary affects of the clot by showing nuclear image defects where there is obstruction of blood flow. A fully normal nuclear perfusion image is generally satisfactory for ruling out a pulmonary embolus. By combining the perfusion with a ventilation scan (V/Q), decisions can be made whether a perfusion defect is also associated with a ventilation defect.

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December 18, 2004 (PL)
version b.003