Qualitative Evaluation of the Carapace Using Computed Tomography in the Nine-Banded Armadillo, Dasypus novemcinctus
World Small Animal Veterinary Association World Congress Proceedings, 2015
L.S. Alves; V.R. Babicsak; M.G.S. Charlier; L.C. Vulcano
Reprodução Animal e Radiologia Veterinária, School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, Brazil

Introduction

The carapace of the armadillos is superimposed across the neck, pectoral apparatus, ribcage, and lumbar. There are a coalesced series of osteoderms situated dorsal to the head and the tail, and it is absent in the ventral surface of the body. Osteoderms appear in different geometric morphologies along of the carapace with two major phenotypes, polygonal and rectangular.

Objectives

This is a partial result referent to research project that it will be evaluated 15 Dasypus novemcinctus on radiography and computed tomography (CT). Nevertheless, the aim of this study is to describe features of the carapace in an animal of this species by CT.

Methods

A corpse of an adult nine-banded armadillo was acquired to perform CT examination. It was positioned in ventral recumbency using equipment helical SHIMADZU® SCT-7800TC with thickness slices of 3 x 3 mm. CT images was evaluation by DICOM system on Synapse PACS FUJIFILM®.

Results

Osteoderm phenotypes were observed on tomography images with rectangular aspect in the first couple tail rings (Image 1) and tightly grouped series of transversely arranged imbricating bands in the banded shield. In the rest of the tail, the osteoderms appear polygonal phenotype as well as in the head and in the pectoral and pelvic shields. Three-dimensional reconstruction of carapace showed 473.58 cm3 of volume and 618.3 HU (SD = 370.8) (Image 2).

Image 1
Image 1

Tomography on transversal plans showing the two different osteoderm phenotypes: (A) rectangular phenotype on level of the ninth band, (B) polygonal phenotype on level of the pelvic shield, and (C) rectangular phenotype on first couple tail rings and polygonal phenotype in the rest of the tail.
 

Image 2
Image 2

 

Conclusions

By this partial result, we can conclude two different osteoderm phenotypes in specific areas of carapace and body by computed tomography of the nine-banded armadillo.

  

Speaker Information
(click the speaker's name to view other papers and abstracts submitted by this speaker)

L.S. Alves
Reprodução Animal e Radiologia Veterinária
School of Veterinary Medicine and Animal Science
São Paulo State University (UNESP)
Botucatu, Brazil


MAIN : Exotics : CT Evaluation of Armadillo Carapace
Powered By VIN

Friendly Reminder to Our Colleagues: Use of VIN content is limited to personal reference by VIN members. No portion of any VIN content may be copied or distributed without the expressed written permission of VIN.

Clinicians are reminded that you are ultimately responsible for the care of your patients. Any content that concerns treatment of your cases should be deemed recommendations by colleagues for you to consider in your case management decisions. Dosages should be confirmed prior to dispensing medications unfamiliar to you. To better understand the origins and logic behind these policies, and to discuss them with your colleagues, click here.

Images posted by VIN community members and displayed via VIN should not be considered of diagnostic quality and the ultimate interpretation of the images lies with the attending clinician. Suggestions, discussions and interpretation related to posted images are only that -- suggestions and recommendations which may be based upon less than diagnostic quality information.

CONTACT US

777 W. Covell Blvd., Davis, CA 95616

vingram@vin.com

PHONE

  • Toll Free: 800-700-4636
  • From UK: 01-45-222-6154
  • From anywhere: (1)-530-756-4881
  • From Australia: 02-6145-2357
SAID=27