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MediumCTPA is the first-line imaging modality when not contraindicated. V/Q is preferred if CTPA contraindicated. Echo and ultrasound are adjunctsACEP Clinical Policy (2018): Suspected Venous Thromboembolic Disease (Secondary Source: ACR Appropriateness)emergency medicine

A 64-year-old with suspected PE and moderate pretest probability has negative CXR, creatinine normal. What is the preferred imaging test?

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