Michael Birk

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OBJECTIVE Patients who participated in a randomized controlled trial comparing subjective distress and traumatic impact after seclusion or mechanical restraint were interviewed about the coercive measure about one year later. METHODS Between May and December 2006, patients were interviewed about one year after experiencing seclusion or mechanical(More)
This Guideline is an official statement of the European Society of Gastrointestinal Endoscopy (ESGE). It addresses the removal of foreign bodies in the upper gastrointestinal tract in adults. Recommendations Nonendoscopic measures 1 ESGE recommends diagnostic evaluation based on the patient's history and symptoms. ESGE recommends a physical examination(More)
Studies about ICP-variations of brain-injured patients under artificial ventilation seem to become important, since most of those patients, especially those with various additional injuries, do not breathe spontaneously. After having ventilated 10 patients with endexpiratory pressure from 0 to 10 cm H2O, significant ICP-rises could be monitored. A(More)
BACKGROUND Cardiac allograft vasculopathy (CAV) represents a major prognostic factor in long-term survivors of heart transplantation (HTx). Reliable diagnosis of CAV late after HTx is important but remains the domain of invasive techniques such as coronary angiography. METHODS To test alternative approaches, 54 consecutive HTx recipients (mean time since(More)
Methods We conducted a cohort study with optional randomisation comparing seclusion and mechanical restraint among in-patients with acute psychotic disorders. We determined an ethical aspect as main outcome variable: the restriction of human rights from the patients' point of view, measured by a scale developed for this purpose, Human DIgnity during(More)
A key step in ultrasound image formation is digital beamforming of signals sampled by several transducer elements placed upon an array. High-resolution digital beamforming introduces the demand for sampling rates significantly higher than the signals' Nyquist rate, which greatly increases the volume of data that must be transmitted from the system's front(More)
Contemporary sonography is performed by digitally beamforming signals sampled by several transducer elements placed upon an array. High-resolution digital beamforming introduces the demand for a sampling rate significantly higher than the signal's Nyquist rate, which greatly increases the volume of data that must be processed. In 3D ultrasound imaging, 2D(More)
In order to cope with varying, non-settled requirements, to cover the needs of the onboard target and the scientific ground platforms, and to make software development more efficient, an approach has been applied to the software of the MSL (Material Science Laboratory) project [1] which allows for automated generation and early validation of the distributed(More)
To meet the technical and managerial challanges of the MSL project it became necessary to find a highly efficient and flexible software development approach. This paper describes this generic approach chosen for MSL software development and the benefits gained by using tools for automatic software generation to an utmost extent. The outputs of the system(More)
198 Phonoarthrographic examinations of the knee joint are reported on. An analysis was then carried out on the noise in knee joints with clinically and operatively demonstrated gonarthritis, chondromalacia of the patella, meniscus lesion and complex ligament injuries of the knee joint. Our results show that statistically, due to the division of the noise(More)