The sXYYYZ_SS-EE.png files contain figures of trend plots of diagnostic
and morphology parameters of the records and their annotation streams.
X is the number of ECG leads, YYY is the patient number, Z is the record
number of this patient, SS is the start time of the trends in hours, and
EE is the end time of the trends in hours.
Each file contains a figure with following plots (from top to bottom):
Heart Rate: Heart rate in bpm
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Combined Epis.: Combined (in the sense of logical OR) ST segment change
episode annotation stream obtained by merging together the ST episode
annotations of ischemic ST episodes and of heart-rate related ST episodes
from the simultaneous leads into one single ST annotation stream
(narrow rectangles: ischemic ST episodes, wide rectangles: heart-rate
related ST episodes)
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ST Level: ST level function measured at the J + 80(60) milliseconds
(depending oh heart rate) in uV (lead 0)
ST Reference (red): ST reference function in uV (lead 0)
ST Deviation: ST deviation function in uV (lead 0)
Is/RR: ST segment episode annotation stream (lead 0)
(narrow rectangles: ischemic ST episodes, wide rectangles: heart-rate
related ST episodes)
Ax/CC: ST segment shifts (lead 0)
(short vertical lines: axis shifts, longer vertical lines: QRS conduction
changes)
ST Slope: Amplitude difference in uV between the ST level function and
the ST level function measured at the J + 20 milliseconds point (lead 0)
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ST Level: ST level function measured at the J + 80(60) milliseconds
(depending oh heart rate) in uV (lead 1)
ST Reference (red): ST reference function in uV (lead 1)
ST Deviation: ST deviation function in uV (lead 1)
Is/RR: ST segment episode annotation stream (lead 1)
(narrow rectangles: ischemic ST episodes, wide rectangles: heart-rate
related ST episodes)
Ax/CC: ST segment shifts (lead 1)
(short vertical lines: axis shifts, longer vertical lines: QRS conduction
changes)
ST Slope: Amplitude difference in uV between the ST level function and
the ST level function measured at the J + 20 milliseconds point (lead 1)
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[ ST Level: ST level function measured at the J + 80(60) milliseconds
(depending oh heart rate) in uV (lead 2) ]
[ ST Reference (red): ST reference function in uV (lead 2) ]
[ ST Deviation: ST deviation function in uV (lead 2) ]
[ Is/RR: ST segment episode annotation stream (lead 2)
(narrow rectangles: ischemic ST episodes, wide rectangles: heart-rate
related ST episodes) ]
[ Ax/CC: ST segment shifts (lead 2)
(short vertical lines: axis shifts, longer vertical lines: QRS conduction
changes) ]
[ ST Slope: Amplitude difference in uV between the ST level function and
the ST level function measured at the J + 20 milliseconds point (lead 2) ]
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Unread/Noise l0: Unreadable intervals and noisy events (lead 0)
Unread/Noise l1: Unreadable intervals and noisy events (lead 1)
[ Unread/Noise l2: Unreadable intervals and noisy events (lead 2) ]
Abnormal Beats: Abnormal heart beats
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QRS KL1-5: Time series of the first 5 Karhunen-Loeve coefficient
representation of QRS complexes (units in st.d.)
QRS Distance: Mahalanobis distance measure when using the first 5
Karhunen-Loeve coefficients of QRS complexes (units in st.d.)
ST KL1-5: Time series of the first 5 Karhunen-Loeve coefficient
representation of ST segments (units in st.d.)
ST Distance: Mahalanobis distance measure when using the first 5
Karhunen-Loeve coefficients of ST segments (units in st.d.)
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Time: Time in hh:mm:ss