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Screening for squamous intraepithelial lesions with fluorescence spectroscopy.
M F Mitchell1, S B Cantor, C Brookner
1Department of Gynecologic Oncology, University of Texas M.D. Anderson Cancer Center, Houston 77030, USA. mfollen@mdanderson.org
Obstetrics and Gynecology
|November 5, 1999
Summary
Fluorescence spectroscopy shows promise for screening squamous intraepithelial lesions (SILs), outperforming Papanicolaou smears but falling short of colposcopy and HPV testing. Further research is warranted for this innovative technique.
Area of Science:
- Gynecologic Oncology
- Diagnostic Imaging
- Biomedical Optics
Background:
- Squamous intraepithelial lesions (SILs) are precancerous cervical conditions requiring accurate screening.
- Current screening methods like Papanicolaou smears have limitations in sensitivity and specificity.
- Novel diagnostic techniques are needed to improve early detection of SILs.
Purpose of the Study:
- To assess the diagnostic accuracy of fluorescence spectroscopy for detecting SILs.
- To compare the performance of fluorescence spectroscopy against established screening modalities including Papanicolaou smear, colposcopy, cervicoscopy, cervicography, and human papillomavirus (HPV) testing.
Main Methods:
- A systematic literature search identified 275 articles from MEDLINE (1966-1996).
- Receiver operating characteristic (ROC) curve analysis was employed to evaluate diagnostic performance.
- Data from fluorescence spectroscopy (primary) and other methods (secondary) were analyzed using Bayesian and meta-analytic techniques.
Main Results:
- Screening colposcopy demonstrated the highest accuracy (Area Under Curve [AUC] = 0.95).
- Other methods followed: cervicography (0.90), HPV testing (0.88), cervicoscopy (0.85), fluorescence spectroscopy (0.76), and Papanicolaou smear screening (0.70).
- Fluorescence spectroscopy outperformed Papanicolaou smear screening for SIL detection.
Conclusions:
- Fluorescence spectroscopy shows potential as a screening tool for SILs, surpassing the traditional Papanicolaou smear.
- Its performance is currently less accurate than colposcopy, cervicography, HPV testing, and cervicoscopy.
- Further investigation into fluorescence spectroscopy is recommended due to its promising diagnostic capabilities.