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BACKGROUND AND PURPOSE Initial reports indicate that transcranial harmonic imaging after ultrasound contrast agent bolus injection (BHI) can detect cerebral perfusion deficits in acute ischemic stroke. We evaluated parametric images of the bolus washout kinetics. METHODS Twenty-three patients with acute internal carotid artery infarction were investigated(More)
The technical aspects of manual total hip arthroplasty are briefly described. The development, technique and technical problems of previous robotic systems in total hip arthroplasty are described with special details of the Robodoc--System. Recent advances regarding the minimally invasive technique of total-hip implantation and navigation are described. The(More)
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