2010
DOI: 10.1055/s-0029-1243163
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Ein neuer Weg zur quantitativen elektronischen CTG-Analyse

Abstract: FHR characteristics in different foetal behavioural states offer the opportunity to design a new index, the WAS index, which shows close (p<<10(-4)) correlations with all variables of the foetal ABB. Thus, the pH value in cord blood can be predicted within clinically reasonable limits. The qualitative CTG analysis remains untouched.

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Cited by 2 publications
(3 citation statements)
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“…Thus 475 recordings were left. In this study only the last 30 min were analysed using our own MATLAB programs [25] . FHF can be evaluated quantitatively by computer using a new formula developed in our institution:…”
Section: The Clinical Signifi Cance Of Base Excess (Be B ) and Base Ementioning
confidence: 99%
See 1 more Smart Citation
“…Thus 475 recordings were left. In this study only the last 30 min were analysed using our own MATLAB programs [25] . FHF can be evaluated quantitatively by computer using a new formula developed in our institution:…”
Section: The Clinical Signifi Cance Of Base Excess (Be B ) and Base Ementioning
confidence: 99%
“…The weighting functions w1 , w2 and w3 can hardly be guessed by intuition and therefore were determined by an optimization program designed to maximize the correlation coeffi cient r between actual pH UA and the WAS-score. The mean of the WAS-index, determined for the last 30 min before delivery was denoted " WAS-score " [25] . Acid-base variables including actual blood gases were determined in blood of the umbilical artery (and vein) immediately after delivery by trained personal.…”
Section: The Clinical Signifi Cance Of Base Excess (Be B ) and Base Ementioning
confidence: 99%
“…Keines der 35 Kinder hatte ein normales CTG sub partu und dasmedian-ü ber immerhin 90 min hinweg. Solche Resultate werden nicht selten ausschlie ß lich dem CTG zur Last gelegt mit dem Hinweis, dass die Falschpositiv-Rate (FPR( % )) des CTG eben inakzeptabel hoch sei [8] , was in dieser Form -d. h. pauschal formuliert -nicht zutriff t: Beim gesunden Feten (pH ≥ 7,300) liegt die Spezifi t ä t des CTG numerisch generell deutlich h ö her -zwischen 69,8 % und 100 % schwankendals die Sensitivit ä t [8,11] , was gleichbedeutend ist mit der Aussage, dass die FPR numerisch deutlich geringer ist als die Falschnegativ-Rate (FNR), denn Spezifi t ä t und FPR einerseits und Sensitivit ä t und FNR andererseits ergeben immer eine Wahrscheinlichkeit von 1,0 bzw. 100 % .…”
Section: Hintergrund ▼unclassified