Long Term ST Database 1.0.0
(2,844 bytes)
The sXYYYZ.tsr.zip files, where X is the number of ECG leads,
YYY is the patient number, and Z is the record number of this
patient, contain following files:
sXYYYZ_fin.dmy - Fine diagnostic and morphology time series
sXYYYZ_raw.dmy - Raw diagnostic and morphology time series
sXYYYZ_1.sta - ST segment markers according to annotation
protocol A
These three files are needed internally by SEMIA viewing tool.
To unzip each sXYYYZ.tsr.zip file type:
unzip sXYYYZ.tsr.zip
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The sXYYYZ.stf files, where X is the number of ECG leads,
YYY is the patient number, and Z is the record number of this
patient, are ASCII files and contain:
- Raw ST level function
- Raw inearly approximated baseline ST level function
(raw ST reference function)
- Raw ST deviation function
for each ECG lead. These files are intended to users.
Columns in the sXYYYZ.stf file represent:
Column 1: Sample index
Column 2: ST level (lead 0) (20 units = 100 uV)
Column 3: ST reference (lead 0) (20 units = 100 uV)
Column 4: ST deviation (lead 0) (20 units = 100 uV)
Column 5: ST level (lead 1) (20 units = 100 uV)
Column 6: ST reference (lead 1) (20 units = 100 uV)
Column 7: ST deviation (lead 1) (20 units = 100 uV)
[ Column 8: ST level (lead 2) (20 units = 100 uV) ]
[ Column 9: ST reference (lead 2) (20 units = 100 uV) ]
[ Column 10: ST deviation (lead 2) (20 units = 100 uV) ]
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The sXYYYZ.klt.zip files, where X is the number of ECG leads,
YYY is the patient number, and Z is the record number of this
patient, are compressed ASCII files and contain:
- Time series of ST segment Karhunen-Loeve transform
coefficients (ST segment principal components)
- Time series of QRS complex Karhunen-Loeve transform
coefficients (QRS complex principal components)
These files are intended to users.
To unzip each sXYYYZ.klt.zip file type:
unzip sXYYYZ.klt.zip
Columns in the sXYYYZ.klt file represent:
Column 1: Sample index
Column 2: ST segment KL coefficient 1 (100 units = 1 st.d.)
Column 3: ST segment KL coefficient 2 (100 units = 1 st.d.)
Column 4: ST segment KL coefficient 3 (100 units = 1 st.d.)
Column 5: ST segment KL coefficient 4 (100 units = 1 st.d.)
Column 6: ST segment KL coefficient 5 (100 units = 1 st.d.)
Column 7: ST segment KL Mahalanobis distance using the
first 5 KL coefficients (100 units = 1 st.d.)
Column 8: QRS complex KL coefficient 1 (100 units = 1 st.d.)
Column 9: QRS complex KL coefficient 2 (100 units = 1 st.d.)
Column 10: QRS complex KL coefficient 3 (100 units = 1 st.d.)
Column 11: QRS complex KL coefficient 4 (100 units = 1 st.d.)
Column 12: QRS complex KL coefficient 5 (100 units = 1 st.d.)
Column 13: QRS complex KL Mahalanobis distance using the
first 5 KL coefficients (100 units = 1 st.d.)