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Medical Detect QRS Complex of ECG

  1. Jan 12, 2012 #1
    HI
    i read ecg byte array from file.now i want to detect QRS of read ecg byte. how can i acheive this in java.Is there any generalized formula or any thing from where i can easiliy calculate this?

    i get byte array from Lifegain defibrilator(an ecg device).i draw ecg on android from these bytes.now i want to detect QRS complex(term used for calculation of time and voltage of a wave of one heart beat).DATA=LeadData":"-284,-127,-122,17,-35,10,32,10,52,16,49,33,38,69,70,58,45,93,47,88,58,90,149,5,82,-12,-4,40,-34,29,-29,5,-4,-17,-13,-29,-13,-4,-9,-9,-10,-20,-15,-22,-32,-25,-23,-2,-15,-7,-13,-19,-17,-28,-27,-27,-33,-20,-16,-13,-20,-10,-22,-20,-19,-28,-15,-19,-22,-21,-9,-3,-6,-8,-6,-11,-8,-8,-5,-10,-5,-6,-9,-4,-6,3,20,3,14,7,11,10,5,11,5,10,2,10,13,14"

    Any help would be highly appreciated.
    Regards,

    shah
     
  2. jcsd
  3. Jan 13, 2012 #2

    berkeman

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    Staff: Mentor

    Can you assume that the EKG rhythm is a normal sinus rhythm? Or do you need to accommodate the various dysrhythmias? Finding the QRS complex in some dysrhythmias can be quite a challenge for software (if the QRS complex is there at all)...

    http://en.wikipedia.org/wiki/Cardiac_dysrhythmia

    .
     
  4. Jan 15, 2012 #3

    Moonbear

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    Staff Emeritus
    Science Advisor
    Gold Member

    Which lead are you using? Interpreting an ECG depends on which lead is being used. Most people are familiar with lead I, but there can be up to 6 leads used for diagnostic purposes.
     
  5. Jan 24, 2012 #4
    Hi,

    I am using lead 2 of ecg to get data.
    i have searchd on it alot and found some code project also. For reference http://www.codeproject.com/Articles/4353/ECG-recording-storing-filtering-and-recognition
    but i think it save data in its particular format.my data format is not compatible with its format.so this software does not detect QRS from my Data file/Array.my data array is like
    data_array={-757,-671,-583,-500,-427,-343,-269,-208,-131,-61,-5,57,109,174,237,285,334,381,439,486,524,566,604,642,677,711,742,776,810,838,866,892,920,947,961,974,996,1019,1029,1037,1059,1067,1075,1090,1094,1103,1109,1109,1117,1121,1123,1125,1123,1124,1121,1114,1116,1106,1099,1102,1094,1081,1082,1081,1074,1069,1062,1055,1060,1057,1056,1063,1049,1054,1015,1040,1025,1020,1051,987,1083,964,1097,970,1050,1074,855,2088,1624,881,1067,1019,1036,926,1256,467,3321,7968,7933,7482};

    i s there any standerd fromat for ecg data storage.so that that can be compatible for all.

    Regards

    Shah Khalid.
     
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