Related Experiment Videos
[Screening for cancer of the prostate using prostate-specific antigen]
M E Toubert1, M H Schlageter, J Bron
1Service de Médecine Nucléaire, Hôpital Saint-Louis, Paris.
Presse Medicale (Paris, France : 1983)
|June 16, 1990
Summary
Systematic prostate cancer screening in 600 men over 50 detected 18 cancers. Combined prostatic acid phosphatase (PAP) assay and rectal palpation offered high sensitivity and specificity for early prostate cancer detection.
Area of Science:
- Urology
- Oncology
- Diagnostic Imaging
Context:
- Prostate cancer screening is crucial for early detection in men over 50.
- Industrial medicine departments conducted systematic screening in the Paris region.
- Evaluation of multiple diagnostic methods for prostate cancer detection.
Purpose:
- To assess the effectiveness of various screening methods for prostate cancer.
- To determine the sensitivity and specificity of prostate specific antigen (PSA), prostatic acid phosphatase (PAP) assays, rectal palpation, and transrectal ultrasonography.
- To identify the optimal combination of methods for detecting prostate cancer.
Summary:
- A study screened 600 men over 50 using PSA, PAP, rectal palpation, and ultrasonography.
- 18 prostate cancers were detected; PSA identified 17 but lacked specificity.
- Combined PAP assay and rectal palpation demonstrated high sensitivity and good specificity.
Impact:
- Highlights the limitations of PSA screening alone due to low specificity.
- Suggests that a combination of PAP assay and rectal palpation is a more effective screening strategy.
- Transrectal ultrasonography's role is primarily for guiding biopsy site selection.