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[Ultrasonic doppler technique for microvascular bypass (author's transl)]
Neurochirurgia
|September 1, 1976
Summary
The ultrasonic Doppler technique accurately assesses microvascular bypass patency noninvasively in patients with cerebrovascular disorders. This outpatient method offers high accuracy for monitoring cerebral blood flow post-surgery.
Area of Science:
- Neurosurgery
- Vascular Surgery
- Diagnostic Imaging
Context:
- Post-operative assessment of extraintracranial bypass is crucial for managing cerebrovascular disorders.
- Traditional methods like angiography can be invasive and limit frequent monitoring.
- Noninvasive techniques are needed for efficient and accurate evaluation of bypass patency.
Purpose:
- To evaluate the accuracy and utility of the ultrasonic Doppler technique for assessing the patency of microvascular extraintracranial bypasses.
- To compare the findings of ultrasonic Doppler with post-operative angiography.
- To explore the potential of ultrasonic Doppler for functional assessment of bypasses.
Summary:
- Fifty patients underwent re-examination using the ultrasonic Doppler technique after microvascular extraintracranial bypass surgery.
- Findings were compared against post-operative angiography, demonstrating high accuracy (96%) for assessing bypass patency.
- The technique is noninvasive, suitable for outpatient use, and allows for frequent re-examinations.
Impact:
- Establishes ultrasonic Doppler as a highly accurate, noninvasive tool for post-operative bypass assessment.
- Facilitates frequent, outpatient monitoring of cerebral blood flow and bypass function.
- Suggests potential for quantitative functional assessment of bypasses by analyzing amplitude indices.