Compumedics Annotation Format - nsrr/edf-editor-translator GitHub Wiki

Compumedics uses XML for annotation file format that includes five sections:

• Epoch length in seconds, normally 30 seconds

    <CMPStudyConfig>
      <EpochLength>30</EpochLength>
    </CMPStudyConfig>
  

• Step channel information

    <StepChannels>
      <StepChannel>
        <Input>LIGHT</Input>
        <Labels>
          <Label>ON</Label>
          <Label>OFF</Label>
        </Labels>
      </StepChannel>
    </StepChannels>
  

• Scored event settings including colors, text colors, and input

    <ScoredEventSettings>
      <ScoredEventSetting>
        <Name>Obstructive Apnea</Name>
        <Colour>16628921</Colour>
        <TextColour>4194304</TextColour>
        <Input>ABDO RES</Input>
      </ScoredEventSetting>
    <ScoredEventSettings>
  

• Scored events: event observed during sleep study, including event name, start time in seconds, duration in seconds, input. Desaturation and LowestSpO2 are optional.

    <ScoredEvents>
      <ScoredEvent>
        <LowestSpO2>90</LowestSpO2>
        <Desaturation>3</Desaturation>
        <Name>SpO2 desaturation</Name>
        <Start>2400.4</Start>
        <Duration>13.4</Duration>
        <Input>SaO2</Input>
      </ScoredEvent>
      <ScoredEvent>
        <Name>Hypopnea</Name>
        <Start>2423.8</Start>
        <Duration>27.5</Duration>
        <Input>ABDO RES</Input>
      </ScoredEvent>
    </ScoredEvents>
  

• Sleep stages: hypnogram is broken into periods of 30 seconds (epoch). 0 is wake stage, 1-4: sleep stage 1-4 and 5 is REM sleep. 9 is Active.

    <SleepStage>0</SleepStage>
    <SleepStage>2</SleepStage>
    <SleepStage>2</SleepStage>
    <SleepStage>2</SleepStage>
    <SleepStage>2</SleepStage>
    <SleepStage>1</SleepStage>
    <SleepStage>1</SleepStage>
    <SleepStage>2</SleepStage>
    <SleepStage>5</SleepStage>
    <SleepStage>5</SleepStage>
    <SleepStage>0</SleepStage>