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At least 775 records · Page 43Linked to original sources
PubMed1983

[Data telecommunication in electric response audiometry (ERA)].

Telephone-lines suit for the transmission also of digital data along long distances. In ERA this technique is favourable. --because the application of a computer is necessary anyway and the primarily analogous data have to be transformed to digital ones anyhow and --because the expenses for purchase, maintainance and operation of the complete equipment stress practices and small hospitals disproportionately. To test "ERA via telephone" we established outstations, the peripheral measuring equipment of which was composed of commercially available devices (Digital Equ. Corp.); only the computer controlled stimulator originated from our own construction. The communication software between central and peripheral station was written in a way that the realtime feature of the registration was preserved and, therefore, only about 30 min are necessary to obtain the intensity-latency time-function (P6/JV) of both ears.

Audiometry↗
PubMed1978

Assessment of the technical quality of electrocardiograms.

The technical quality of 600 electrocardiograms (ECG's) was assessed for missing leads and clipping, and graded from 1 to 5 for each of noise, lead drift and beat-to-beat drift. Three subgroups of 200 ECGs each were studied: group A, those obtained by emergency department staff (non-technicians); group B, records obtained by ECG technicians; and group C, telephone-transmitted records obtained by technicians performing all the laboratory work at a smaller, outlying hospital. Records with missing leads, clipping, grade 4 or 5 noise, grade 5 lead drift or grade 5 beat-to-beat drift were classified as unsatisfactory or rejected. With these stringent criteria the rejection rate was 71.0% for group A records, 58.5% for group B and 44.5% for group C. The proportions of records with peak quality (no missing leads or clipping, and grade 1 noise, lead drift or beat-to-beat drift) were 4.5% for group A, 5.5% for group B and 23.0% for group C. Suggested revisions in the grading of technical quality of ECGs are presented.

Allied Health Personnel↗