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ecgsyn-1.0.0/sample-output/HEADER.shtml
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ecgsyn-1.0.0/sample-output/HEADER.shtml
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<!--#set var="TITLE" value="Example of ECGSYN output"-->
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<!--#include virtual="/head.shtml"-->
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<p>
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The files in this directory illustrate <tt>ECGSYN</tt> output obtained using
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its default settings. The files <tt>ecgsyn.dat</tt> and <tt>rr.dat</tt> are
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created by <tt>ECGSYN</tt> itself.
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<p>
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<tt>ecgsyn.dat</tt> is a text file, which contains three columns:
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<ul>
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<li> the time in seconds
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<li> the ECG amplitude in millivolts
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<li> markers to indicate the locations of the waveform peaks:
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<table>
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<tr><td>0</td><td>(no peak)</td></tr>
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<tr><td>1</td><td>Top of P-wave</td></tr>
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<tr><td>2</td><td>Q-point</td></tr>
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<tr><td>3</td><td>Peak of R-wave</td></tr>
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<tr><td>4</td><td>S-point</td></tr>
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<tr><td>5</td><td>Peak of T-wave</td></tr>
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</table>
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</ul>
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<tt>rr.dat</tt> is also a text file, containing (in one column) a series of
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inter-beat (RR) intervals in seconds.
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<p>
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The files <tt>syn.hea</tt> and <tt>syn.dat</tt> are PhysioBank (WFDB) format
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header and signal files created from the <tt>ECGSYN</tt> output by:
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<pre>
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wrsamp -F 256 -o syn -x 200 1 <ecgsyn.dat
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</pre>
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These files can be read using any of the available
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<a href="/physiotools/wag/">WFDB applications</a>.
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<p>
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The file <tt>ecgsyn.png</tt> (shown below) was created from the
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first 4.5 seconds of <tt>ecgsyn.dat</tt>, using
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<a href="/physiotools/plt/">plt</a>:
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<pre>
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plt ecgsyn.dat 0 1 -xa 0 4.5 -t "ECGSYN output" \
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-x "Time (s)" -y "ECG Amplitude (mV)" -T lw | \
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lwcat -png >ecgsyn.png
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</pre>
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<center><img src="ecgsyn.png" alt="[ECGSYN output]"></center>
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<hr>
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