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The Usefulness of the Stress-Cath® in the diagnosis of genuine stress incontinence (1992)

Myers, D. L. ; Scotti, R. J.

Springer

International urogynecology journal 3 (1992), S. 284-287

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ISSN: 1433-3023

Keywords: Cough stress test ; Fluid bridge test ; Genuine stress incontinence ; Stress-Cath®

Source: Springer Online Journal Archives 1860-2000

Topics: Medicine

Notes: Abstract The purpose of this study is to assess the positive and negative predictive accuracy of the Stress-Cath® (Continental Pharmaceuticals, UK) as compared to single channel cystometry and a standing cough stress test in the diagnosis of genuine stress incontinence. Twenty-eight women were evaluated for incontinence by single-channel cystometry and a standing cough stress test at cystometric capacity. These same 28 women also underwent a modified fluid bridge test, using a device known as Stress-Cath®. This catheter is able to detect urine in the proximal urethra. The data demonstrated that the Stress-Cath® was 81.3% sensitive and 83.3% specific for the diagnosis of genuine stress incontinence as determined by the simplified urodynamic evaluation. The Stress-Cath® had a positive predictive rate of 86.6% and a negative predictive rate of 76.9%. Its false positive rate was 16.7% and false-negative rate was 18.7%. The Stress-Cath® is relatively insensitive in diagnosing genuine stress incontinence.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00499643

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Correspondence analysis and adsorbate selection for chemical sensor arrays (1991)

Avila, Fernando ; Myers, D. E. ; Palmer, Chris

New York, NY : Wiley-Blackwell

Journal of Chemometrics 5 (1991), S. 455-465

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ISSN: 0886-9383

Keywords: Correspondence analysis ; Cluster analysis ; Optimization ; Eigenanalysis ; Chemistry ; Analytical Chemistry and Spectroscopy

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Carey et al. utilized principal components analysis (PCA) to analyze frequency shift data obtained from piezoelectric sensors formed by coating quartz crystals with 27 different GC stationary phases and tested using 14 analytes. The objective of the analysis was to determine an optimal reduced set of coatings for detection of the analytes. The results were correlated with those obtained from cluster analysis. In this paper the data are re-analyzed using correspondence analysis (CA). The advantage of using CA include a symmetric treatment of sensor coatings and analytes and better identification of the representation of the analytes in terms of the detection components. The results obtained by the conjunctive use of PCA, a varimax rotation and cluster analysis were obtained by CA.

Additional Material: 2 Ill.