• J Clin Monit Comput · Feb 2021

    Review

    Metrology part 1: definition of quality criteria.

    • Pierre Squara, ScheerenThomas W LTWLhttp://orcid.org/0000-0002-9184-4190Department of Anesthesiology, University of Groningen, University Medical Centre Groningen, Groningen, The Netherlands. t.w.l.scheeren@umcg.nl., Hollmann D Aya, Jan Bakker, Maurizio Cecconi, Sharon Einav, MalbrainManu L N GMLNGhttp://orcid.org/0000-0002-1816-5255Department of Intensive Care, University Hospital Brussels (UZB), Jette, Belgium.Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Brussels, Belgium., Xavier Monnet, Daniel A Reuter, van der HorstIwan C CICChttp://orcid.org/0000-0003-3891-8522Department of Intensive Care, Maastricht University Medical Center+, Maastricht University, Maastricht, The Netherlands., and Bernd Saugel.
    • Department of Cardiology and ICU, Clinique Ambroise Paré, Neuilly-sur-Seine, France.
    • J Clin Monit Comput. 2021 Feb 1; 35 (1): 17-25.

    AbstractAny measurement is always afflicted with some degree of uncertainty. A correct understanding of the different types of uncertainty, their naming, and their definition is of crucial importance for an appropriate use of measuring instruments. However, in perioperative and intensive care medicine, the metrological requirements for measuring instruments are poorly defined and often used spuriously. The correct use of metrological terms is also of crucial importance in validation studies. The European Union published a new directive on medical devices, mentioning that in the case of devices with a measuring function, the notified body is involved in all aspects relating to the conformity of the device with the metrological requirements. It is therefore the task of the scientific societies to establish the standards in their area of expertise. Adopting the same understandings and definitions among clinicians and scientists is obviously the first step. In this metrologic review (part 1), we list and explain the most important terms defined by the International Bureau of Weights and Measures regarding quantities and units, properties of measurements, devices for measurement, properties of measuring devices, and measurement standards, with specific examples from perioperative and intensive care medicine.

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