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Emerg Med J 30:251-252 doi:10.1136/emermed-2013-202363.3
  • Best evidence topic reports

BET 2: Imaging for the diagnosis of pulmonary embolism in pregnant women

Abstract

A short-cut review was carried out to establish whether CT pulmonary angiography (CTPA) or ventilation–perfusion (VQ) scanning offer advantages in imaging the pregnant woman with a possible deep vein thrombosis. A total of 80 papers was found using the reported search, of which four represented the best evidence to answer the clinical question. The author, date and country of publication, patient group studied, study type, relevant outcomes, results and study weaknesses of these best papers are tabulated. The clinical bottom line is that a ventilation-perfusion (or perfusion) scan should be prioritised if the chest x-ray is normal. In the case of an abnormal chest x-ray, a CT pulmonary angiography scan will be better in finding an alternative diagnosis.


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Poll

Among patients with minor TBI (GCS 13-15) getting CT scans ≥ 24 hours after injury, what proportion have a traumatic finding?

Results

0.5% - 43% response rate
3% - 41% response rate
10% - 16% response rate

Related original article: PCT head imaging in patients with head injury who present after 24 h of injury: a retrospective cohort study

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