Key result
Continuous-wave Doppler probes may be unsuitable for quantitative carotid evaluations due to insufficient beam width.
Bench testing reveals that several commercially available continuous-wave Doppler probes have inadequate field characteristics for quantitative carotid artery evaluation.
Clinicians should verify CW Doppler probe suitability before quantitative carotid use; leaves open in vivo validation and standardization.
The field response characteristics of 12 commercially available continuouswave (CW) Doppler ultrasound probes have been measured by a vibrating target method. These characteristics are discussed in relation to their application for quantitative evaluation of the carotid arteries. Because of poorly behaved field characteristics, short depths of penetration, and insufficient beam width, some of the probes may not be suitable for such evaluations.
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Douville et al. (1983) studied Evaluation of the carotid arteries. Continuous-wave (CW) Doppler ultrasound probes was evaluated on Field response characteristics measured by a vibrating target method. Some commercially available continuous-wave Doppler ultrasound probes may not be suitable for quantitative carotid evaluations due to poorly behaved field characteristics and insufficient beam width.
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