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Updated: Jun 8, 2026
08:05
Doppler Ultrasonography for Live Imaging and Quantification of Ovarian Vascular Function in Mice
Published on: November 14, 2025
Spatiotemporal image correlation using high-definition flow: a new method for assessing ovarian vascularization.
Marek J Kudla1, Juan Luis Alcázar
1Department of Obstetrics and Gynecology, Medical University of Silesia, Katowice, Poland.
Summary
This study introduces a new ultrasound method to assess ovarian blood flow. The vascularization index (VI) varies with the cardiac cycle, but the flow index (FI) does not in healthy ovaries.
Area of Science:
- Reproductive medicine
- Medical imaging
- Gynecological diagnostics
Background:
- Assessing ovarian vascularization is crucial for reproductive health.
- Traditional methods may not fully capture dynamic blood flow changes.
- Spatiotemporal image correlation (STIC) with high-definition flow (HDF) offers advanced visualization.
Purpose of the Study:
- To introduce and evaluate a novel method for assessing ovarian vascularization.
- To utilize spatiotemporal image correlation (STIC)-high-definition flow (HDF) for 3D vascular index measurements.
- To analyze vascular indices during different phases of the cardiac cycle.
Main Methods:
- Transvaginal sonography was performed on 30 healthy premenopausal women.
- A 4D STIC-HDF volume was acquired from the nondominant ovary.
- Three-dimensional vascularization index (VI) and flow index (FI) were calculated from 1-cm³ samples in systole and diastole.
Main Results:
- Mean VI was significantly higher in systole (11.485%) than diastole (8.653%) (P < .0001).
- Mean FI values were nearly identical between systole (47.799) and diastole (47.791) (P = .993).
- VI showed a 35% higher mean during systole, while FI remained constant (ratio 1.00).
Conclusions:
- STIC-HDF enables 3D assessment of ovarian vascular indices across the cardiac cycle.
- VI measurements are influenced by the cardiac cycle timing.
- FI measurements appear unaffected by the cardiac cycle in normal ovaries.
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