Cerebral perfusion monitoring with ultrafast power doppler imaging
11 days ago
- #perfusion monitoring
- #cerebrovascular surgery
- #ultrasound imaging
- Ultrafast Power Doppler Imaging (UPDI) enables real-time, high-resolution monitoring of cerebral blood volume (CBV) during cerebrovascular surgery.
- UPDI can detect ischemia, collateral recruitment, and hyperperfusion in both cortex and white matter, providing direct parenchymal perfusion data.
- The study included 10 patients undergoing aneurysm clipping, AVM resection, or bypass surgery, demonstrating UPDI's feasibility and safety.
- UPDI offers advantages over existing tools like ICG angiography and micro-Doppler by providing continuous, high-resolution perfusion monitoring without contrast agents.
- Perfusion State Histograms (PSH) were used to analyze hemodynamic changes, showing significant differences between baseline and temporary clipping states.
- UPDI's potential to reduce surgery-related stroke (SrS) risks by enabling early detection of ischemia and guiding interventions like clip repositioning or bypass.
- Limitations include the need for further validation with larger cohorts and integration of miniaturized probes for broader surgical applicability.