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Published on: June 3, 2021
Diagnostic reliability of the percutaneous ultrasonic Doppler technique for vertebral arterial occlusive diseases
Insights
Ultrasonic Doppler examination shows high diagnostic reliability for detecting vertebral artery occlusive lesions. This non-invasive technique is a useful screening tool for cerebrovascular disease.
Area of Science:
- Neurology
- Vascular Surgery
- Medical Imaging
Background:
- Limited data exists on the diagnostic accuracy of ultrasonic Doppler for vertebral artery occlusive lesions.
- Cerebrovascular disease diagnosis requires reliable methods for assessing vertebral arteries.
Purpose of the Study:
- To evaluate the diagnostic reliability of percutaneous vertebral Doppler examination.
- To compare Doppler findings with vertebral angiograms in patients with cerebrovascular disease.
Main Methods:
- Sixty-four vertebral arteries in 53 patients were examined using percutaneous vertebral Doppler and vertebral angiography.
- Doppler findings were analyzed using a sound spectrograph and classified into no flow, poor flow, and normal flow types.
Main Results:
- The overall diagnostic reliability of vertebral Doppler was 92% (59/64).
- For the 'poor flow' type, diagnostic reliability reached 94%, identifying occlusion, narrowing, or hypoplasia.
- The 'no flow' type showed 67% reliability for occlusion or absence of the vertebral artery.
Conclusions:
- Percutaneous vertebral Doppler examination demonstrates significant clinical utility.
- This technique serves as an effective screening tool for identifying occlusive vertebral arterial diseases.
Abstract:
There is little data on the diagnostic reliability of the ultrasonic Doppler technique for vertebral arterial occlusive lesions. Percutaneous vertebral Doppler examination and the vertebral angiograms were compared to determine the diagnostic reliability of this technique in 64 vertebral arteries of 53 patients with cerebrovascular disease. The percutaneous vertebral Doppler findings were quantitatively analyzed using a sound spectrograph and were classified into three types: no flow signal type, poor flow type and normal flow type. In nine patients with the no flow type the angiograms revealed vertebral occlusion or a missing vertebral artery in six, giving a diagnostic reliability of 67%. In 17 patients with poor flow type the angiograms revealed vertebral occlusion or a missing vertebral artery in five, terminal narrowing of the artery in nine, and hypoplasia in two giving a diagnostic reliability of 94%. For all vertebral arteries examined with this technique, including normal ones, the diagnostic reliability was 92% (59/64). Percutaneous vertebral Doppler examination has clinical usefulness as a screening test for occlusive vertebral arterial diseases.
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