Stroke treatment. Coloured angiogram of the brain of a 48 year old patient before (left) and after (right) treatment for a massive cerebrovascular accident (CVA),or stroke. The stroke occurred due to a blocked middle cerebral artery causing areas of ischaemia (lack of blood flow) to parts of the brain. In the right-hand image,blood flow has returned after the blockage was targeted with thrombolytic (clot-busting) drugs (urokinase) and anticoagulants (heparin) using a catheter. The treatment causes the symptoms of the stroke,such as hemiparesis and aphasia (trouble producing and understanding speech),to fade. Angiograms use a contrast dye to highlight blood vessels | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Zephyr |
Bildgröße: | 4550 px × 3921 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |