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Abbreviation for:
range of interest
reactive oxygen intermediate
return on investment
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.


(re'jon) [L. regio, boundary]
A portion of the body with natural or arbitrary boundaries. Synonym: regioregional (-al), adjective
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abdominal regions

The abdomen and its external surface, divided into nine regions by four imaginary planes: two horizontal, one at the level of the ninth costal cartilage (or the lowest point of the costal arch) and the other at the level of the highest point of the iliac crest; two vertical, through the centers of the inguinal ligaments (or through the nipples or through the centers of the clavicles) or curved and coinciding with the lateral borders of the two abdominal rectus muscles.
See: illustration

chest region

Any of the three areas of the chest: anterior, posterior, and lateral. The anterior divisions (right and left) are the clavicular, infraclavicular, and supraclavicular, the mammary and inframammary, and the upper and lower sternal. The posterior divisions (right and left) are the scapular, infrascapular, interscapular, and suprascapular. The lateral divisions are the axillary and infra-axillary.

hypochondriac region


hypogastric region


iliac region

The inguinal region on either side of the hypogastrium.

inguinal region


lumbar region

That area of the abdominal surface lateral to the umbilical region, above the iliac region, and below the hypochondriac region.

region of interest

Abbreviation: ROI
In radiology, the object of a study or a treatment designed to affect a limited part of the body.

parasternal region

The area between the sternal border and parasternal line.

sternomastoid region

The wide area on the lateral region of the neck covered by sternocleidomastoid muscle.

region of interest

Abbreviation: ROI
In radiology, the object of a study or a treatment designed to affect a limited part of the body.
See also: region
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
So a new image compression scheme called region of interest (ROI) coding was presented in [1]-[7].
Three things to be aware of, however, should your contact center decide to go the proprietary IP migration route: 1) The IP products from these vendors are essentially hardware add-ons and forklift upgrades that drain ROI; 2) Most hardware-centric vendors are still trying to adopt the SIP open-communications standard that supports VoIP; and 3) Proprietary vendors continue to lock your contact center into their own often-overpriced IP system components, such as gateways, voice cards and end user devices.
As a result, it is important to understand the specific definition of terms in an ROI calculation before comparisons are made about the financial returns of different projects.
Again, if value can be assigned to the increased performance, then that value can be applied to the ROI.
ROI benefit: Active visibility permits faster decision-making, which results in quicker execution of revenue-generating decisions or cost-cutting decisions -- both impacting profitability.
He tells of a Fujitsu employee who was working with an executive from a Midwestern retailer at an ROI workshop.
Now that some of the perceptions of training have been established, we can demonstrate two ways of measuring training's ROI. Both have valuable components and, used separately or together, they can become an important management tool.
The Dupont formula approach of breaking down ROI into margin and turnover is well-known and well-utilized.
A cette occasion, SM le Roi a fait part au Roi Juan Carlos Ier de Sa grande fierte des liens solides d'amitie et de consideration mutuelle qui unissent les deux Souverains et les deux Familles Royales, ainsi que des relations de cooperation fructueuse et de solidarite agissante entre les deux pays voisins, en reiterant Sa ferme determination a oeuvrer, de concert avec son successeur SM le Roi Felipe VI, pour le renforcement de ces relations et leur elargissement a divers domaines, au service des interets des deux peuples.
found that 60% of retailer respondents calculated ROI on a store redesign.
Effective 1 June 2018, ROi's members will have access to the Leiters' portfolio of high quality patient medications for a term of three years.
Global Banking News-June 29, 2018-Leiters signs outsourcing supply agreement with Resource Optimization & Innovation (ROi)