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dc.contributor.authorBrouwer, Patrick A.
dc.contributor.authorYeo, Leonard L.
dc.contributor.authorGounis, Matthew J.
dc.contributor.authorGontu, Vamsi Krishna
dc.date2022-08-11T08:10:48.000
dc.date.accessioned2022-08-23T17:20:26Z
dc.date.available2022-08-23T17:20:26Z
dc.date.issued2018-07-24
dc.date.submitted2018-08-09
dc.identifier.citation<p>J Neurointerv Surg. 2018 Jul 24. pii: neurintsurg-2018-014146. doi: 10.1136/neurintsurg-2018-014146. [Epub ahead of print] <a href="https://doi.org/10.1136/neurintsurg-2018-014146">Link to article on publisher's site</a></p>
dc.identifier.issn1759-8478 (Linking)
dc.identifier.doi10.1136/neurintsurg-2018-014146
dc.identifier.pmid30042158
dc.identifier.urihttp://hdl.handle.net/20.500.14038/48301
dc.description.abstractOne of the challenges that doctors, nurses, and technologists in the field of neurointervention face is the differing definitions regarding the sizes of the materials we use, or more specifically the nomenclature by which these sizes are communicated. In this field, where practitioners have grown accustomed to ‘odd’ units of measurement, such as mm Hg for blood pressure and cm H2O for intracranial pressure, the neurovascular device industry has provided an even bigger challenge with the many different denominations for the sizes of the devices we work with. During the formative years, neurointerventionists in training become increasingly accustomed to sizes of materials commonly used in the angiography suite. When a 4 F diagnostic catheter is requested, it is uncommon to convert this to the metric system, rather a common understanding of the required size is already established. Unfortunately, in the field of minimally invasive medicine, where sheaths, guide catheters, microcatheters, wires, and needles are used to deliver coils, stents, flow diverters, and liquid embolics, there is a trend to not only use the French scale but many other scales for sizing, such as ‘Inch’, ‘Gauge’, ‘Charrière’, and ‘mm’. To complicate matters further, the different scales do not measure changes in a commensurate manner—for example, the diameter increases with every unit in the French scale but decreases with the units in the Gauge scale. These unnecessarily obscure size definitions, in a field that requires an accuracy of micrometers, can only increase the risks of each procedure.
dc.language.isoen_US
dc.relation<p><a href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=pubmed&cmd=Retrieve&list_uids=30042158&dopt=Abstract">Link to Article in PubMed</a></p>
dc.relation.urlhttps://doi.org/10.1136/neurintsurg-2018-014146
dc.subjectdevice
dc.subjectintervention
dc.subjectmaterial
dc.subjectstandards
dc.subjectBiomaterials
dc.subjectBiomedical Devices and Instrumentation
dc.subjectEquipment and Supplies
dc.subjectNervous System Diseases
dc.subjectNeurology
dc.subjectRadiology
dc.subjectSurgery
dc.titleSize matters... but how do I know what size it is
dc.typeResponse or Comment
dc.source.journaltitleJournal of neurointerventional surgery
dc.identifier.legacycoverpagehttps://escholarship.umassmed.edu/radiology_pubs/412
dc.identifier.contextkey12632458
html.description.abstract<p>One of the challenges that doctors, nurses, and technologists in the field of neurointervention face is the differing definitions regarding the sizes of the materials we use, or more specifically the nomenclature by which these sizes are communicated. In this field, where practitioners have grown accustomed to ‘odd’ units of measurement, such as mm Hg for blood pressure and cm H<sub>2</sub>O for intracranial pressure, the neurovascular device industry has provided an even bigger challenge with the many different denominations for the sizes of the devices we work with. During the formative years, neurointerventionists in training become increasingly accustomed to sizes of materials commonly used in the angiography suite. When a 4 F diagnostic catheter is requested, it is uncommon to convert this to the metric system, rather a common understanding of the required size is already established. Unfortunately, in the field of minimally invasive medicine, where sheaths, guide catheters, microcatheters, wires, and needles are used to deliver coils, stents, flow diverters, and liquid embolics, there is a trend to not only use the French scale but many other scales for sizing, such as ‘Inch’, ‘Gauge’, ‘Charrière’, and ‘mm’. To complicate matters further, the different scales do not measure changes in a commensurate manner—for example, the diameter increases with every unit in the French scale but decreases with the units in the Gauge scale. These unnecessarily obscure size definitions, in a field that requires an accuracy of micrometers, can only increase the risks of each procedure.</p>
dc.identifier.submissionpathradiology_pubs/412
dc.contributor.departmentNew England Center for Stroke Research
dc.contributor.departmentDepartment of Radiology


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