Multi-parametric Acoustic, Optical and Mechanical Imaging of Cervical Tissue Insufficiencies to Predict Preterm Birth

WSU Tech#: 19-1517

An enhanced image-guidance system that integrates ultrasound and photoacoustic into existing ablation systems to provide an enhanced image-guidance system for identification of cervical tissue changes during pregnancy and postpartum.

Technology Summary

Preterm delivery is a main cause of perinatal morbidity and mortality worldwide, which is associated with a significant healthcare cost spent on prematurity. Cervical remodeling during pregnancy is a critical process that can lead to complications such as preterm birth (PTB). This technology introduces a novel multi-parametric approach combining noninvasive imaging modalities to quantify cervical tissue changes during pregnancy and postpartum in a murine model. By integrating ultrasound-based measurements of cervical length, photoacoustic imaging of the collagen-to-water ratio, and elastography for tissue elasticity alongside histological assessments, this method provides a comprehensive evaluation of cervical remodeling.  The system not only enhances the understanding of cervical remodeling, but also holds potential as a minimally invasive, point-of-care diagnostic tool for early detection of cervical ripening and PTB risk.

Key Advantages

  • First-in-class multimodal imaging approach (ultrasound + photoacoustic + elastography)
  • Higher predictive accuracy (85.3% vs. ~65% with current histological/cervical length methods)
  • Non-invasive, real-time, and potentially lower cost compared to biomarker-based lab tests
  • Opportunity to easily integrate with existing systems

Market Opportunities

  • Hospitals & Maternal-Fetal Medicine Clinics – High-risk pregnancy monitoring and management.
  • OB/GYN Practices & Prenatal Clinics – Early detection of cervical remodeling in standard prenatal visits.
  • Public Health & Global Health Organizations – Deployment in low-resource settings as a point-of-care tool, especially where access to high-level perinatal care is limited.

Stage of Development

Pre-Clinical – in vivo data

Patent Status

Issued  US Patent 11,801,008  & US Patent 12,364,432

References & Publications

2025 Yan Y, Galaz J, Marvald J, Love T, Yellon S, Gomez-Lopez N, Mehrmohammadi M. Multi-parametric quantitative evaluation of murine cervical remodeling during pregnancy and postpartum. Sci Rep. 2025 May 10

Patent Information:
For Information, Contact:
Tech Transfer Office
313-577-5655
Inventors:
Mohammad Mehrmohammadi
Sonia Hassan
Edgar Hernandez-Andrade
Yan Yan
Maryam Basij
Keywords:
Driving Lifelong Health