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Related Experiment Video

Updated: May 8, 2026

The α-test: Rapid Cell-free CD4 Enumeration Using Whole Saliva

The α-test: Rapid Cell-free CD4 Enumeration Using Whole Saliva

Published on: May 16, 2012

Ovulation detection in saliva, is it possible.

A Salmassi¹, A G Schmutzler, F Püngel

¹Department of Obstetrics and Gynecology, Unit of Reproductive Medicine, University Hospitals Schleswig-Holstein, Campus Kiel, Kiel, Germany.

Gynecologic and Obstetric Investigation

|September 7, 2013

Summary

The Geratherm® ovu control mini-microscope effectively identifies saliva ferning patterns in women undergoing assisted reproductive technology. Its evaluations align closely with sophisticated laboratory methods, showing high agreement with staff assessments.

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Last Updated: May 8, 2026

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Published on: February 11, 2022

Area of Science:

Reproductive endocrinology and infertility
Microscopy and diagnostic tools
Biomarker detection

Background:

Saliva ferning is a method used to predict ovulation.
Assisted reproductive technology (ART) programs require precise monitoring of hormonal changes.
Evaluating simple diagnostic tools for ART monitoring is crucial.

Purpose of the Study:

To assess the diagnostic accuracy of the Geratherm® ovu control mini-microscope for saliva ferning.
To compare patient and laboratory staff evaluations of saliva ferning.
To determine the reliability of the mini-microscope in an ART context.

Main Methods:

Saliva ferning was assessed using the Geratherm® ovu control mini-microscope by 47 patients in an ART program.
Evaluations categorized ferning as none, slight, or good.
Results were compared against rising estradiol (E2) levels and laboratory staff assessments.

Main Results:

The Geratherm® ovu control demonstrated 78% specificity and 80% sensitivity for detecting ferning related to hormonal changes.
Patient and laboratory staff evaluations showed substantial agreement (89.4% κ).
Mini-microscope evaluations were comparable to those using a sophisticated inverted microscope.

Conclusions:

The Geratherm® ovu control is a reliable tool for assessing saliva ferning in ART patients.
The mini-microscope offers a viable, user-friendly alternative for fertility monitoring.
High agreement between patient and staff evaluations suggests ease of use and consistent results.