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Diagnosis
Dual section helical computed tomography had high sensitivity and specificity for detecting acute pulmonary embolism

http://dx.doi.org/10.1136/ebm.6.3.95

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    (2000) Radiology 217, 447. Qanadli SD, El Hajjam M, Mesurolle B, et al.. Pulmonary embolism detection: prospective evaluation of dual section helical CT versus selective pulmonary arteriography in 157 patients.. Nov;. :. –55.
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 QUESTION: In patients with suspected acute pulmonary embolism (PE), what is the diagnostic accuracy of dual section helical computed tomography (CT)?

    Design

    Blinded comparison of pulmonary dual section helical CT with pulmonary digital subtraction arteriography, the diagnostic standard.

    Setting

    Hospital radiology department in Boulogne, France.

    Patients

    158 patients who were 18–75 years of age (mean 58 y, 54% women) and had clinically suspected acute PE. Exclusion criteria were clinical signs of life threatening PE, renal failure, history of allergy to iodinated contrast media, or refusal to participate.

    Description of test and diagnostic standard

    Dual section helical CT was done in a caudocranial direction (begun at the level of the inferior wall of the right ventricle and ending above the aortic arch for imaging the main, lobar, segmental, …

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    Footnotes

    • Source of funding: no external funding.

    • For correspondence: Dr S D Qanadli, Department of Radiology, Ambroise Paré Hospital–René Descartes Paris V University, 9 avenue Charles de Gaulle, 92104 Boulogne, France. Fax + 33 1 49 09 5547