Sreeraman Rajan

Publications (6)0 Total impact

• Article: Blood pressure estimation using maximum slope of oscillometric pulses.

  Majid Mafi, Sreeraman Rajan, Miodrag Bolic, Voicu Z Groza, Hilmi R Dajani
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  ABSTRACT: A new oscillometric pulse index (OPI) derived from the maximum slope (MS) of each pulse in the oscillometric blood pressure waveform is proposed for blood pressure estimation. Maximum slope for each pulse is obtained using the first derivative of the pulse and an envelope of the values corresponding to the maximum slopes is obtained. The maximum of the envelope is taken as the mean arterial pressure (MAP) and the systolic blood pressure (SBP) and diastolic blood pressure (DBP) estimates are obtained as a fraction of the MAP, similar to the traditional maximum amplitude algorithm (MAA). The proposed algorithm is tested on 18 healthy subjects. The MAP, SBP and DBP estimates obtained from the proposed algorithm are compared with those obtained from a commercial blood pressure device and with the estimates obtained using the MAA and morphological qualitative measures available in the literature.
  Conference proceedings: ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference 08/2012; 2012:3239-42.
• Article: Blood pressure estimation using oscillometric pulse morphology.

  Majid Mafi, Sreeraman Rajan, Miodrag Bolic, Voicu Z Groza, Hilmi R Dajani
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  ABSTRACT: A novel pulse morphology-based approach for estimation of blood pressure from non-invasive oscillometric blood pressure measurement is presented. Quantitative measures that describe the pulse morphology are utilized to obtain the estimates of mean arterial, systolic, and diastolic pressures. Preliminary results obtained from a small set of measurements are used to demonstrate the feasibility of the proposed approach. The estimates obtained through pulse morphology-based approach is compared with those obtained from a commercial blood pressure device.
  Conference proceedings: ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference 08/2011; 2011:2492-6.
• Article: Extraction of Breathing Signal and Suppression of Its Effects in Oscillometric Blood Pressure Measurement.

  Silu Chen, Miodrag Bolic, Voicu Groza, Hilmi R. Dajani, Izmail Batkin, Sreeraman Rajan
  IEEE T. Instrumentation and Measurement. 01/2011; 60:1741-1750.
• Article: Confidence Interval Estimation for Oscillometric Blood Pressure Measurements Using Bootstrap Approaches.

  Soojeong Lee, Miodrag Bolic, Voicu Z. Groza, Hilmi R. Dajani, Sreeraman Rajan
  IEEE T. Instrumentation and Measurement. 01/2011; 60:3405-3415.
• Article: Feature-Based Neural Network Approach for Oscillometric Blood Pressure Estimation.

  Mohamad Forouzanfar, Hilmi R. Dajani, Voicu Z. Groza, Miodrag Bolic, Sreeraman Rajan
  IEEE T. Instrumentation and Measurement. 01/2011; 60:2786-2796.
• Article: Measurement of Heart Rate Variability Using an Oscillometric Blood Pressure Monitor.

  Saif Ahmad, Miodrag Bolic, Hilmi R. Dajani, Voicu Groza, Izmail Batkin, Sreeraman Rajan
  IEEE T. Instrumentation and Measurement. 01/2010; 59:2575-2590.