[Report of a trial of polyfrequent oscillo-resistometry with the custo vit equipment].
With the aim of determining the significance of the principle of the multi-frequency forced oscillation technique employed by the custo vit to determine the airway resistance, measurements were performed on a number of test subjects, employing a unit available with three different software modifications. A comparison with the resistance values obtained with other equipment (whole-body plethysmograph, Siregnost FD5), revealed the diagnostic usefulness of the technique of frequency-dependent resistance. It was also confirmed that the phase angles, also obtainable with the custo vit, play a considerable role in the significant differentiation of the degree of obstruction. The differences in comparison with other methods are critically examined, and proposals made for a further improvement of the forced oscillation technique employed by the custo vit.
Glaser
T
T
Pleger
E
E
Müller
E
E
Wilke
A
A
Vogel
J
J
D000403:Airway Resistance; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000175:diagnosis*; D008838:Microcomputers; D009991:Oscillometry / Q000295:instrumentation*; D012123:Pulmonary Ventilation; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D012984:Software; D013147:Spirometry / Q000295:instrumentation
Erprobungsbericht zur polyfrequenten Oszilloresistometrie mit dem Gerät custo vit.