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Diagnosis
Magnetic resonance direct thrombus imaging was accurate in suspected deep venous thrombosis

https://doi.org/10.1136/ebm.7.4.126

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    (2002) Ann Intern Med 136, 89; Fraser DG, Moody AR, Morgan PS, et al.. Diagnosis of lower-limb deep venous thrombosis: a prospective blinded study of magnetic resonance direct thrombus imaging.. Jan 15;. :. –98.
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 QUESTION: In patients with suspected deep venous thrombosis (DVT), is magnetic resonance direct thrombus imaging (MRDTI) an accurate diagnostic test?

    Design

    Blinded comparison of MRDTI with venography.

    Setting

    A university based hospital in Nottingham, UK.

    Patients

    101 eligible patients (age range 20 to 95 y) from a group of 338 consecutive patients with suspected DVT who had routine venography. Patients with a positive result on venography and a subset of 25% of patients with a negative result, selected according to a predetermined sequence, were included. Exclusion criteria were pregnancy, known contrast allergy, renal failure, no leg symptoms, failed or inconclusive venography or MRDTI, contraindications to magnetic resonance imaging, or claustrophobia.

    Description of test and diagnostic standard

    MRDTI was done within 48 hours of venography. The scans were interpreted by …

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    Footnotes

    • Source of funding: British Heart Foundation.

    • For correspondence: Dr A Moody, University Hospital, Nottingham, UK. Alan.Moody{at}nottingham.ac.uk.