K H FUNG / SCIENCE PHOTO LIBRARY K H FUNG / SCIENCE PHOTO LIBRARY
Left atrial appendage closure. Coloured 3D computed tomography (CT) angiogram of a view from inside the left atrium of a patient who has undergone a treatment known as left atrial appendage closure (LAAC). This is a minimally invasive therapy procedure that closes off this clot-forming structure using an implant to prevent strokes in patients with atrial fibrillation.
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