Using geographical information system for spatial evaluation of canine extruded disc herniation

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Constantin Daraban
Carla Murino
Giuseppe Marzatico
Giuseppina Mennonna
Gerardo Fatone
Luigi Auletta
Fabiana Micieli
Vasile Vulpe
Leonardo Meomartino *
(*) Corresponding Author:
Leonardo Meomartino | leonardo.meomartino@unina.it

Abstract

Disc herniation is one of the most common pathologies of the vertebral column in dogs. The aim of this study was to develop a geographical information system (GIS)-based vertebral canal (VC) map useful for spatial evaluation of extruded disc herniation (EDH) in dogs. ArcGIS® was used to create two-dimensional and three-dimensional maps, in which the VC surface is divided into polygons by lines representing latitude and longitude. Actual locations and directions of the herniated disc material were assessed by a series of 142 computer tomographies of dogs collected between 2005 and 2013. Most EDHs were located on the cervical and transitional regions (thoraco-lumbar and lumbo-sacral) and shown at the level of the ven- tro-cranial and ventro-central polygons created. Choropleth maps, highlighting the distribution and the location/direction patterns of the EDHs throughout the VC, were produced based on the frequency of the ailment. GIS proved to be a valuable tool in analysing EDH in dogs. Further studies are required for biomechanical analysis of EDH patterns.

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