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Artificial muscles use ultrasound-activated microbubbles to move

Researchers at ETH Zurich have developed artificial muscles that contain microbubbles and can be controlled with ultrasound.
AHA/ASA Journals

Geometric Features of Ventricular Tachycardia Corridors in Patients With Ischemic Cardiomyopathy

BACKGROUND: A 3-dimensional hyperboloid model has been proposed to characterize ventricular tachycardia (VT) circuitry. We sought to characterize the geometric features of viable corridors, derived ...