Banca de DEFESA: IEVERTON CLEITON CORREIA DA SILVA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : IEVERTON CLEITON CORREIA DA SILVA
DATE: 04/11/2022
TIME: 14:00
LOCAL: AUDITÓRIO
TITLE:

Tomografia Computadorizada para a avaliação pulmonar e hepática da espécie Ara ararauna

KEY WORDS:

Parrots, lung disease, liver disease, radiodensity, QCT.

PAGES: 50
BIG AREA: Ciências Agrárias
AREA: Medicina Veterinária
SUMMARY:

The aim of this study was to describe the aspects of pulmonary and hepatic tomographic
anatomy associated with the quantitative assessment of the pulmonary and hepatic
radiodensity of Blue-and-yellow macaws (Ara ararauna). Birds of the genus Ara are part
of the Psittacidae family including macaws, parakeets, and parrots, being the largest
representatives of this family. Among the main pathologies found in birds of genus Ara,
diseases of pulmonary and hepatic origin are the most prominent. Their lungs are well
inserted in the chest wall and do not have great expansion and its liver is divided into 2
lobes: right and left hepatic lobe, being divided by the interlobar notch in most species.
Quantitative computed tomography (QCT) can be defined as a CT technique to measure
HU radiodensity of body tissues. This technique can be used for the diagnosis and
monitoring of patients with diseases that alter the density of the liver and lung
parenchyma. The first study aims to perform a tomographic description of the normal
pulmonary parenchyma of free-living Blue-and-yellow macaws (Ara ararauna), in
addition to providing information regarding lung volume and degree of normal
radiographic attenuation of the lung parenchyma, obtaining average values of -
727,19±44,53 HU using the histogram technique and -722,19 ± 29,69 HU by the ROI
technique with no statistical differences between them. And the second study aimed to

determine the normal value of radiographic attenuation of the liver parenchyma of Blue-
and-yellow macaws (Ara ararauna), using QCT, obtaining the results of means of hepatic

radiographic attenuation ranging from 53,73 HU a 54,44 HU. From these results it was
possible to determine the normal values for radiographic attenuation of the pulmonary
and hepatic parenchyma of Blue-and-yellow macaws, providing relevant information for
literature and possible further studies related to the differentiation of pathologies
involving the lungs and liver of these birds.

BANKING MEMBERS:
Presidente - FABIANO SELLOS COSTA
Externo ao Programa - 385059 - FABRICIO BEZERRA DE SA - nullExterna ao Programa - 385039 - JACINTA EUFRASIA BRITO LEITE - nullExterno à Instituição - MARCIO ANDRE DA SILVA
Externa à Instituição - THAIZA HELENA TAVARES FERNANDES