Research Article

Identification of Cerebral Artery Stenosis Using Bilateral Photoplethysmography

Table 1

Experimental results based on the linear discriminant analysis (LDA).

Feature typeExperimentRecognition rate (%)

Maximum positive amplitudeLeft + right index finger92.2
Left index finger78.1
Right index finger81.1

Maximum negative amplitudeLeft + right index finger90.6
Left index finger76.6
Right index finger79.7