Variation of Korotkoff stethoscope sounds

Results from 140 subjects. For each subject, blood pressure was measured, and the position of the Korotkoff sound for both systolic (SBP) and diastolic (DBP) blood pressure identified relative to the actual clinical SBP and DBP beats for each subject. The Korotkoff beats were identified using a computer Convolutional Neural Network (CNN) algorithm.