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Pressure unit inconsistency in the Medical Measurement Systems ASCII-file
1College of Medicine & Public Health, Flinders University, Adelaide, SA, Australia.
Background:
To apply novel analysis methods for processing high-resolution pressure-impedance motility parameters, raw data acquired by commercial motility systems are exported and analyzed externally using purposed-designed software.
Methods:
Data acquired by the Medical Measurement Systems (MMS) motility equipment are exported from MMS in different file formats.
Key Results:
MMS studies that are exported to ASCII-file format will be in cmH2O units even though acquired and displayed by the MMS system in mmHg units (1 mmHg would be exported as 1.36 cmH2O).
Conclusions & Inferences:
Due to this issue, investigators may unknowingly generate pressure data in incorrect units, data exported from MMS in ASCII-file format need to be divided by a factor 1.36 to convert cmH2O to mmHg.
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