[The dietary prevention of iron deficiency anemia in premature infants].
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Anemia, Hypochromic↗
Biomedical subjects
H Mentzel
Publications and source records attributed to H Mentzel.
LIPSIA--a new software system for the evaluation of functional magnetic resonance images of the human brain.
This paper describes the non-commercial software system LIPSIA that was developed for the processing of functional magnetic resonance images (fMRI) of the human brain. The analysis of fMRI data comprises various aspects including filtering, spatial transformation, statistical evaluation as well as segmentation and visualization. In LIPSIA, particular emphasis was placed on the development of new visualization and segmentation techniques that support visualizations of individual brain anatomy so that experts can assess the exact location of activation patterns in individual brains. As the amount of data that must be handled is enormous, another important aspect in the development LIPSIA was the efficiency of the software implementation. Well established statistical techniques were used whenever possible.
Brain↗
[Noninvasive, continuous monitoring of artificial respiration in premature and newborn infants by the constant measurement of respiratory minute volume, oxygen consumption and carbon dioxide release].
A system of instrumentation for the continuous measurement of the respiratory gases during assisted ventilation of neonates and premature infants based upon "breath-by-breath-method" is described. The four respiratory parameters flow (V), ventilation pressure (p), oxygen-concentration and carbon dioxide-concentration are measured. These datas are processed by a computer to generate a continuous display of the respiratory minute volume, the tidal volume, the breath rate, the oxygen consumption and the carbon dioxide production. All parameters are stored and can be displayed or plotted as trends. The flow-measurement is performed using hot-wire-anemometry. The very small flow sensor is adapted directly to the tube. Next to this sensor, the respiratory gas for the analysis of the O2- and CO2- concentration is suctioned off continuously. First clinical experience in mechanically ventilated newborns is characterized.
Carbon Dioxide↗
[Cardiovascular diagnosis in thoracopagus twins].
The case of a thoracopagus with atrial and ventricular connection and of a thoracoischiopagus with atrial connection and multiple cardiac defects are reported. For the assessment of cardiac fusion, ECG, radionuclid-studies and CT are of limited value. By means of angiocardiography it is possible to classify patients in those with pericardial union only, with venae-cavae - or atrial connection and with ventricular connection. While separation of twins with pericardial fusion is often performed, successful separation of twins with atrial fusion is only once described, of twins with ventricular fusion never described.
Aorta, Thoracic↗