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Shear wave elastography for intracranial epidermoid tumors
Ghaida Alawaji1, Wajda Alhothali1, Abdulrahman Albakr2
1Division of Neurosurgery, Department of Surgery, King Saud University, Riyadh, Saudi Arabia.
Clinical Neurology and Neurosurgery
|June 28, 2021
Summary
Shear wave elastography (SWE) intraoperatively differentiates epidermoid cysts from normal brain tissue using real-time elasticity mapping. This technique aids in precise tumor identification and resection, improving surgical outcomes.
Area of Science:
- Medical Imaging
- Surgical Technology
- Neurosurgery
Background:
- Ultrasound elastography (USE) assesses tissue mechanical properties in real-time.
- USE differentiates tumor from normal tissue based on elasticity.
Observation:
- Intraoperative shear wave elastography (SWE) evaluated four patients with epidermoid cysts.
- SWE assessed elasticity of tumors and surrounding normal brain tissue.
Findings:
- SWE successfully differentiated epidermoid cysts from normal brain tissue intraoperatively.
- Epidermoid cysts exhibited increased elasticity (mean 101.3–205.1 kPa) compared to normal brain tissue (mean 14.9–23.8 kPa).
Implications:
- SWE is a feasible and valuable intraoperative tool for epidermoid cyst resection.
- SWE can detect residual tumor tissue not visible during surgery.
