Stroke. Coloured composite image of a magnetic resonance imaging (MRI) scan of the brain and 2D and 3D computed tomography (CT) scans of the head and shoulders of a 48 year old patient after a cerebrovascular accident (CVA,or stroke). An infarct (area of dead tissue,pink) is seen in the left hemisphere. The infarct is a result of ischaemia,a lack of blood flow to that area of the brain,caused by a blockage in a blood vessel. The blockage may be due to a thrombus (blood clot) or embolism (air bubble or loose blood clot). Strokes can be instantly fatal,or may pass unnoticed. Symptoms can include muscle weakness,behavioural changes or paralysis | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Zephyr |
Bildgröße: | 3189 px × 2741 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |