JAMES KING-HOLMES / SCIENCE PHOTO LIBRARY JAMES KING-HOLMES / SCIENCE PHOTO LIBRARY
Deep vein thrombosis scan. Magnetic resonance direct thrombus imaging (MRDTI) scan of a leg vein blocked by a thrombus (blood clot, white) in a patient suffering from deep vein thrombosis (DVT). MRDTI is a technique for detecting DVT clots, which can develop during long journeys in cramped conditions. It is non-invasive, quick and accurate, and may be more sensitive than ultrasound scans or venography, meaning that symptomless clots can be detected. MRDTI also reveals clots in pregnant women without the use of X-rays. A clot may move to the lungs or brain, causing pulmonary embolism or a stroke. MRDTI was developed at the University of Nottingham, UK.
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