There's some question about whether such a funky unit is a proper unit. It does look rather like a statistical imagination to me, rather than an actual unit.
I'm not sure where the right place to discuss this is. I'll let you know when I find out. Grahame On Fri, Apr 29, 2011 at 12:50 AM, Leonardo Moretti <lmoretti at noemalife.com> wrote: > > Hi > there are a lots of scientific publications treating the indexations of left > ventricular mass (LVM). > I can link some abstracts, but the whole PDF documents are not public: > - http://www.nature.com/jhh/journal/v23/n11/full/jhh200916a.html > - http://www.ncbi.nlm.nih.gov/pubmed/11729247 > or here > https://www.stanford.edu/group/ccm_echocardio/cgi-bin/mediawiki/index.php/Left_ventricle_wall_thickness > > It can be used to detect left ventricular hypertrophy. > You can google "mass/height^2.7" to find more references. > > Thanks for your help. > leo > > > Grahame Grieve-3 wrote: >> >> Hi Leo >> >> Can you please provide some references to show the use of height^2.7? >> >> Grahame >> >> >> On Thu, Apr 28, 2011 at 6:47 PM, Moretti Leonardo >> <lmoretti at noemalife.com> wrote: >>> In cardiology, left ventricular mass (LVM) is often indexed to better >>> identify left ventricular hypertrophy. >>> Possible indexations are: >>> - LVM/BSA (body surface area) >>> - LVM/height >>> - LVM/height^2.7 >>> The first and the latter are often used. >>> The units of measurement of the latter is usually g/m2.7 >>> [gram/(meter^2.7)]. >>> >>> In DV_QUANTITY, "units" attribute should be expressed in UCUM unit >>> syntax. >>> UCUM doesn't allow not integer exponent (see >>> http://aurora.regenstrief.org/~ucum/ucum.html#section-Syntax-Rules), so I >>> have the problem that I cannot express the units as g/m2.7. >>> >>> Any suggestion to solve this problem!? >>> Best regards >>> leo >>> _______________________________________________ >>> openEHR-technical mailing list >>> openEHR-technical at openehr.org >>> http://lists.chime.ucl.ac.uk/mailman/listinfo/openehr-technical >>> >>> >> >> >> >> -- >> ----- >> http://www.healthintersections.com.au / >> grahame at healthintersections.com.au / +61 411 867 065 >> _______________________________________________ >> openEHR-technical mailing list >> openEHR-technical at openehr.org >> http://lists.chime.ucl.ac.uk/mailman/listinfo/openehr-technical >> >> > > -- > View this message in context: > http://old.nabble.com/Unable-to-express-an-unit-of-measurements-in-UCUM-syntax-tp31494533p31497302.html > Sent from the openehr-technical mailing list archive at Nabble.com. > > _______________________________________________ > openEHR-technical mailing list > openEHR-technical at openehr.org > http://lists.chime.ucl.ac.uk/mailman/listinfo/openehr-technical > -- ----- http://www.healthintersections.com.au / grahame at healthintersections.com.au / +61 411 867 065
