The effectiveness of the pregnancy adapted YEARS algorithm to safely identify patients for CT pulmonary angiogram in pregnant and puerperal patients suspected of having pulmonary embolism.

6 , 7 Given this fact, there has been an increasing trend of clinicians relying on radiological methods to assist in diagnosing and/or excluding pulmonary thromboembolism and in the context of pregnancy, clinicians are over investigating suspected cases, with an exceptionally low diagnostic yield of 5% versus 15% – 20% in non-pregnant patients. 8 , 9 CT pulmonary angiography is the investigation of choice in many institutions, including our own, for diagnosing pulmonary thromboembolism.

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