Diagnostic Imaging Flashcards
In this image from 2014 Buhler paper “Computed tomographic features of apical infection of equine maxillary cheek teeth: A retrospective study of 49 horses” what is #3 indicating?
EVJ 2014
Alveolar bone sclerosis
In Buhler’s 2014 paper “Computed tomographic features of apical infection of equine maxillary cheek teeth: A retrospective study of 49 horses” what sign was significantly associated with computed tomographic abnormalities of the pulp, root, periapical bone and periodontal space?
EVJ 2014
Tooth fracture
Infundibular changes were NOT associated with other CT signs of apical infection.
In Buhler’s 2014 paper “Computed tomographic features of apical infection of equine maxillary cheek teeth: A retrospective study of 49 horses”, what structure is indicated by the #1?
EVJ 2014
Lamina dura
In Casey’s 2014 study “Gross, computed tomographic and histological findings in mandibular cheek teeth extracted from horses with clinical signs of pulpitis due to apical infection,” what were the Hounsfield units of 1.) cementum, dentin, bone, 2.) pulp, 3.) enamel?
Tremaine. EVJ 2014
1.) cementum, dentin, bone: 550-2000 HU
2.) pulp 400-500 HU
3.) enamel > 2500 HU
In Casey’s 2014 study “Gross, computed tomographic and histological findings in mandibular cheek teeth extracted from horses with clinical signs of pulpitis due to apical infection,” changes in the dentinopulpar area were located in what location for cases and controls?
Tremaine. EVJ 2014
Cases: apical third
Controls: occlusal and middle third
In Casey’s 2014 study “Gross, computed tomographic and histological findings in mandibular cheek teeth extracted from horses with clinical signs of pulpitis due to apical infection,” CT was most useful for detecting what type of defects?
Tremaine. EVJ 2014
Enamel and cemental
In Casey’s 2014 study “Gross, computed tomographic and histological findings in mandibular cheek teeth extracted from horses with clinical signs of pulpitis due to apical infection,” what histologic changes associated with pulpitis had not previously been documented in the horse?
Tremaine. EVJ 2014
Pulpar mineralization and osteodentin
In Carmalt’s 2016 study “Computed Tomographic Appearance of the Temporomandibular Joint in 1018 Asymptomatic Horses: A Multi-Institution Study,” what muscle inserts where the white arrows are pointing?
Vet Rad US 2016
Lateral pterygoid
In Carmalt’s 2016 study “Computed Tomographic Appearance of the Temporomandibular Joint in 1018 Asymptomatic Horses: A Multi-Institution Study,” CT anatomatical variations were detected in what percent of all horses and what percent of all joints studied?
40% all horses
29% all joints
In Carmalt’s 2016 study “Computed Tomographic Appearance of the Temporomandibular Joint in 1018 Asymptomatic Horses: A Multi-Institution Study,” what was the association with age on increased CT anatomical variations?
TMJs were sig more likely to have CT anatomic variations as horse age categories increased
In Carmalt’s 2016 study “Computed Tomographic Appearance of the Temporomandibular Joint in 1018 Asymptomatic Horses: A Multi-Institution Study,” what was the association with sex and CT anatomical variation?
Odds of geldings having normal TMJs sig lower than mares but not sig lower than stallions with no sig differences between mares and stallions
In Carmalt’s 2016 study “Computed Tomographic Appearance of the Temporomandibular Joint in 1018 Asymptomatic Horses: A Multi-Institution Study,” the odds of having CT anatomical variations were not stat sig associated with which factors?
reason for undergoing CT, horse breed or the presence of concurrent pathology in the region of the TMJ
In Carmalt’s 2016 study “Computed Tomographic Appearance of the Temporomandibular Joint in 1018 Asymptomatic Horses: A Multi-Institution Study,” what percent of horses over the age of 1 year had discrete focal hypodense regions?
57.4%
In Carmalt’s 2016 study “Computed Tomographic Appearance of the Temporomandibular Joint in 1018 Asymptomatic Horses: A Multi-Institution Study,” what factors were not stat sig associated with the presence of regions of well defined hypodensity?
Age
right vs left
In Carmalt’s 2016 study “Computed Tomographic Appearance of the Temporomandibular Joint in 1018 Asymptomatic Horses: A Multi-Institution Study,” thin, linear hyperdense regions immediately ventral and parallel to mandibular fossa in region of disc in transverse plane were stat sig associated with what factor?
Age: Never occurred in horses < 1yr and increased dramatically in
horses > 10yrs
What pathology is documented via oral endoscope of this 109 tooth in Doztel’s 2017 Step by Step paper on how to build an endoscope?
JVD 2017 issue 1
Oral endoscopic image of the occlusal surface of an apically infected right maxillary first molar (109). There is feed impaction of defects over all 5 pulp horns in addition to the mesial infundibulum.
What has metaplastic calcification in the sinus been associated with in this and previous reports?
Nottrott et al. Successful Treatment of a Persistent Oroantral Fistula via Transbuccal and Transnasal Endoscopic Debridement in a Horse. JVD 2018 issue 1
Dental fractures
In this mini sinuscopic image, “d” is the infraorbital canal of the right frontal sinus. What is “c”?
Pouyet, Vet Surg 2019, Validation of a 2-mm videoendoscope for the evaluation of the paranasal sinuses with a minimally invasive technique
Maxillary septal bullae
In this mini sinuscopic image of the right caudal maxillary sinus, “a” is the ethmoid and “c” is the infraorbital canal. What is “b”?
Pouyet, Vet Surg 2019, Validation of a 2-mm videoendoscope for the evaluation of the paranasal sinuses with a minimally invasive technique
The entrance to the sphenopalatine sinus
In this mini sinuscopic image of the right rostral maxillary sinus, what are “c” and “d”?
Pouyet, Vet Surg 2019, Validation of a 2-mm videoendoscope for the evaluation of the paranasal sinuses with a minimally invasive technique
Roots of 108 (d) and 109 (c)
From this frontal trephine location, what structure is shown with the black box over it?
Bach et al. Vet Surg 2019. Surgical enlargement of the nasomaxillary aperture and transnasal conchotomy of the ventral conchal sinus: Two surgical techniques to improve sinus drainage in horses
Maxillary septal bullae
30 mm trephine used
