Using the BRM2 Brain Monitor
26 | BRM2 Brain Monitor Reference Manual
Managing data files
During an assessment, the BRM2 Brain Monitor records all EEG data, patient details and events into a
set of digital files on the machine's internal storage (hard disk drive). These files can be grouped together
and compressed into a single archive file. See Archiving data files on page 27.
Data file naming convention
Files in internal storage
The data files produced by the BRM2 Brain Monitor are named according to the following convention.
<Patient ID>_<Start Date>.brm
(for example, ABC1234_20020820.brm)
<Start Date> is the date on which the recording was started, in the format yyyymmdd.
Where two or more assessments on the same patient are performed on the same calendar day, suffixes
(_1, _2, _3, etc.) are added to the file names to distinguish the assessments.
Archive files
Archive files are named according to the same conventions as previously described, but the file name has
an additional suffix component that identifies the type and contents of the file (Summary, Clinical or
Raw).
The Clinical (_CLN) archive level contains all information necessary to review EEG and aEEG waveforms,
and is recommended for normal use.
Suffix _SUM _CLN _RAW
One-minute median values of all measured parameters.
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aEEG waveforms (XC and BiL)
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EEG waveforms (1-25 Hz)
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EEG waveforms (1-88 Hz)
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