nomogram

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nomogram

 [nom´o-gram]
a graph with several scales arranged so that a straightedge laid on the graph intersects the scales at related values of the variables; the values of any two variables can be used to find the values of the others.

nom·o·gram

(nōm'ō-gram),
1. A form of line chart showing scales for the variables involved in a particular formula such that corresponding values for each variable lie in a straight line intersecting all the scales.
2. A line chart in toxicology that relates time since toxic ingestion with blood levels of the offending agent to estimate levels of toxicity and to guide therapy.
Synonym(s): nomograph (2)
[G. nomos, law, + gramma, something written]

nomogram

/nom·o·gram/ (nom´o-gram) a graph with several scales arranged so that a straightedge laid on the graph intersects the scales at related values of the variables; the values of any two variables can be used to find the values of the others.

nomogram

[nom′əgram, nō′mə-]
Etymology: Gk, nomos, law, gramma, a record
1 a graphic representation, by any of various systems, of a numeric relationship.
2 a graph on which a number of variables are plotted so that the value of a dependent variable can be read on the appropriate line when the values of the other variables are given.

nomogram

An alignment chart in which there are ≥ 3 abscissas, each measuring a specific parameter and mathematically or empirically defined as having a relationship to the other two; the abscissas are placed parallel to each other on an open 2-D field; a straight line drawn when 2 parameters are known allows determination of the value of a 3rd–unknown parameter

nom·o·gram

(nōmō-gram)
A form of line chart showing scales for the variables involved in a particular formula in such a way that corresponding values for each variable lie in a straight line intersecting all the scales.
[G. nomos, law, + gramma, something written]

tonography 

Technique for measuring the facility of outflow of aqueous humour from the eye under the continuous pressure exerted by the weight of a tonometer over a given period of time. The instrument usually employed for tonography is an electronically recording Schiötz tonometer. In this technique, the pressure is continuously recorded over a four-minute period and the outflow is deduced by utilizing a specifically designed diagram, called a nomogram (which is a graphical representation of one, or more, mathematical relationships whereby the desired value may be found without calculation by placing a straight edge across the diagram). The results of tonography can indicate the presence of established glaucoma, although the technique is not very reliable for borderline cases.

nom·o·gram

(nōmō-gram)
Linear chart showing scales for the variables involved in a particular formula such that corresponding values for each variable lie in a straight line intersecting all the scales.
[G. nomos, law, + gramma, something written]

nomogram

a graph with several scales arranged so that a straightedge laid on the graph intersects the scales at related values of the variables; the values of any two variables can be used to find the values of the others.
References in periodicals archive ?
Patil and Smith obtained data for generating a computerized neural network from a nomogram previously published by Sarah de Ferranti from the Department of Cardiology at Children's Hospital in Boston and Harvard Medical School, and by Nader Rifai from the Department of Laboratory Medicine at Children's Hospital and Harvard Medical School's Department of Pathology.
Birthweight curves were compared with those of published nomograms (Table).
The temperature vs time function was adopted based on the nomogram (Fig 4) and formulas (1), (2).
They developed nomograms for 4/4 hard maple lumber, which estimated simulated parts yields for six lumber grades.
One popular set of algorithms is the Kattan nomograms, developed in the 1990s by bio-statistician Michael W.
Nomograms can be used to relate the revolutions per minute (RPM) to RCF by measuring the radius of the centrifuge head in centimeters from the center pin to the bottom of a horizontal cup or from the following formula:
Some authors have recommended that vancomycin monitoring is not necessary at all, arguing that empiric dosing based on nomograms almost always results in trough levels that exceed the MIC of susceptible bacteria (9).
In future iterations of surveillance guidelines, other models of risk groups, such as the Cancer of the Prostate Risk Assessment (CAPRA) (8) Kattan or other nomograms, may be used.
Calculates new warfarin dose and schedule based on INR results and previous regimen using validated Warfarin dosing nomograms.