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Detection of carotid occlusive disease by ultrasonic imaging and pulsed Doppler spectrum analysis.
- Source :
-
Surgery [Surgery] 1979 Nov; Vol. 86 (5), pp. 698-706. - Publication Year :
- 1979
-
Abstract
- Ultrasonic imaging of the cervical carotid arteries by ultrasonic arteriography and duplex scanning combined with pulsed Doppler spectrum analysis were investigated in a series of patients undergoing arteriography. By using the ultrasonic image as a guide for precise placement of the pulsed Doppler sample volume, the characteristics of blood flow at points of interest in the carotid arteries could be determined. Audible analysis of the Doppler signal permitted correct diagnosis of 23 of 26 (88%) high-grade stenoses or occlusions with ultrasonic arteriography and 24 of 26 (92%) with duplex scanning. Spectrum analysis of Doppler signals obtained with the duplex scanner detected all of the 22 high-grade stenoses. Spectral abnormalities of a lesser degree also were detected in 18 of 23 vessels (78%) with atherosclerotic plaques which should not have reduced cerebral blood flow. These techniques permit the accurate detection of and the distinction between high-grade stenoses and occlusion, as well as the identification of many plaques which are not large enough to affect intracranial hemodynamics.
- Subjects :
- Arterial Occlusive Diseases diagnostic imaging
Blood Flow Velocity
Carotid Artery Diseases diagnostic imaging
Carotid Artery, External
Carotid Artery, Internal
Doppler Effect
Evaluation Studies as Topic
Humans
Methods
Radiography
Transducers
Ultrasonics instrumentation
Arterial Occlusive Diseases diagnosis
Carotid Artery Diseases diagnosis
Ultrasonography
Subjects
Details
- Language :
- English
- ISSN :
- 0039-6060
- Volume :
- 86
- Issue :
- 5
- Database :
- MEDLINE
- Journal :
- Surgery
- Publication Type :
- Academic Journal
- Accession number :
- 494062