title: [Various viewpoints in the evaluation of rheograms of the extremities. I. Rheographs of the leg].
abstract: 1. All angular measures of the rheogramme depend in their size on the height of the gauge wave. In order to gain uniform reference values and to perform a comparison between different curves, it is necessary to eliminate the effect of the various heights of gauge waves on the curves by a standardisation on a constant reference value. The technical performance of the standardisation is described. 2. The connection between height of the gauge waves and the angular measures is not linear. A polynoma of second degree is the result of the function of size of angle and height of gauge wave. 3. As strongest parameter for the separation between pathologic cases and comparative persons with healthy vessels the standardized sum of angles of the three first after-waves in the descending side of the curve is found. 4. Other separation parameters are the relative pulse volume, the standardized ascending and peak angle as well as the peak height in milli-Ohm. For these parameters the mean value and the lower limits of the reference regions are given.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007866:Leg; D008297:Male; D008433:Mathematics; D008875:Middle Aged; D010992:Plethysmography, Impedance / Q000379:methods*
vernacular_title: Uber einige neue Gesichtspunkte bei der Beurteilung des Extremitätenrheogramms. I. Mitteilung: Rheogramm des Unterschenkels.