Medical How Can I Detect the QRS Complex of an ECG Byte Array in Java?

[ShahKhalid]

HI
i read ecg byte array from file.now i want to detect QRS of read ecg byte. how can i achieve 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

 

[berkeman]

HI
i read ecg byte array from file.now i want to detect QRS of read ecg byte. how can i achieve 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

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

.

 

[Moonbear]

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.

 

[ShahKhalid]

Hi,

I am using lead 2 of ecg to get data.
i have searchd on it a lot 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.