Evaluation of a rapid quantitative determination method of PSA concentration with gold immunochromatographic strips.
BMC Urol
; 15: 109, 2015 Nov 03.
Article
em En
| MEDLINE
| ID: mdl-26530738
ABSTRACT
BACKGROUND:
Prostate cancer remains the most common cancer in men. Qualitative or semi-quantitative immunochromatographic measurements of prostate specific antigen (PSA) have been shown to be simple, noninvasive and feasible. The aim of this study was to evaluate an optimized gold immunochromatographic strip device for the detection of PSA, in which the results can be analysed using a Chromogenic Rapid Test Reader to quantitatively assess the test results.METHODS:
This reader measures the reflectance of the signal line via a charge-coupled device camera. For quantitative analysis, PSA concentration was computed via a calibration equation. Capillary blood samples from 305 men were evaluated, and two independent observers interpreted the test results after 12 min. Blood samples were also collected and tested with a conventional quantitative assay.RESULTS:
Sensitivity, specificity, positive and negative predictive values, and accuracy of the PSA rapid quantitative test system were 100, 96.6, 89.5, 100, and 97.4 %, respectively. Reproducibility of the test was 99.2, and interobserver variation was 8 % with a false positive rate of 3.4 %. The correlation coefficient between the ordinary quantitative assay and the rapid quantitative test was 0.960.CONCLUSIONS:
The PSA rapid quantitative test system provided results quickly and was easy to use, so that tests using this system can be easily performed at outpatient clinics or elsewhere. This system may also be useful for initial cancer screening and for point-of-care testing, because results can be obtained within 12 min and at a cost lower than that of conventional quantitative assays.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Neoplasias da Próstata
/
Fitas Reagentes
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Biomarcadores Tumorais
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Cromatografia de Afinidade
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Antígeno Prostático Específico
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Ouro
Tipo de estudo:
Diagnostic_studies
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Evaluation_studies
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Prognostic_studies
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Qualitative_research
Limite:
Adult
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Aged
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Aged80
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
BMC Urol
Assunto da revista:
UROLOGIA
Ano de publicação:
2015
Tipo de documento:
Article
País de afiliação:
Taiwan