Butler Flashcards
(116 cards)
To increase contrast levels you must:
Double the mAs and reduce the kV by 15%
Half the mAs and increase the kV by 15%
Double the kV and reduce the mAs by 15%
Half the kV and increase the mAs by 15%
Double the mAs and reduce the kV by 15%
What is an alternative method if you don’t have a grid to not lose contrast?
Increase your object to film distance
Increase your film to focus distance
Decrease your object to film distance
Decrease your film to focus distance.
Increase your object to film distance
As from which object width you need to use a grid?
15 cm
20 cm
11 cm
7 cm
11 cm
Intra-articular gas can remain present radiographically until when?
24 hours
36 hours
48 hours
72 hours
48 hours
How fast can osteophytes become present?
1 week
2-3 weeks
3-4 weeks
6 weeks
2-3 weeks
How much decrease of mineralisation is needed before it becomes evident radiographically?
More than 35%
More than 30%
More than 25%
More than 15%
More than 30%
A normal mineral content of an adult horse is;
35% mineral and 65% matrix and cells
65% mineral and 35% matrix and cells
45% mineral and 55% matrix and cells
55% mineral and 45% matrix and cells
65% mineral and 35% matrix and cells
Osteopetrosis can not be caused by the following disease:
Hypervitaminosis A
Fluorine poisoning
Pulmonary silicosis
Maries disease
Maries disease
What is the most commonly affected physis in the horse resulting in physitis?
Distal radius and distal metacarpal/metatarsal
Distal radius and distal tibia
Distal phalanges and distal metacarpal/metatarsal
Distal tibia and distal phalanges
Distal radius and distal metacarpal/metatarsal
Common location for enostosis like lesions are;
Tibia
Radius
Humerus
Femur
Femur
In which case is the dorsolateralpalmaromedial flexed 45 degree view used in a foot radiograph and in which case the 60 degree?
45: focus on the distal interphalangeal joint, 60: focus on the pastern joint
45: focus on the palmar processes, 60: focus on the distal interphalangeal joint
45: focus on the navicular bone, 60: focus on distal phalanx
45: focus on the palmar processes, 60: focus on osteophytes/enthesophytes
45: focus on the palmar processes, 60: focus on the distal interphalangeal joint
In which case it is usefull to obtain the lateral45proximal-mediodistal oblique image?
To skyline the palmar processes
To skyline the articular margins of the distal interphalangeal joint
To obliquely skyline the navicular bone
To skyline the solar margin
To skyline the palmar processes
How long does it take for the distal phalanx to completely ossify, model and enlarge?
12 months
18 months
2 years
3 years
18 months
A fragment seen at the dorsoproximal aspect of the extensor processs can not be;
Dystrophic mineralisation of the common digital extensor tendon
Separate centre of ossification
Fracture
OCD lesion
OCD lesion
Which radiographic signs are not associated with pedal osteitis complex?
Irregular outline and elongation of the palmar processes
Radiolucent zones in the dorsal aspect of the solar margin
Clear remodelling of the solar margin of the distal phalanx
Osseous cyst like lesions of the palmar processes
Clear remodelling of the solar margin of the distal phalanx
What indicates new bone formation at the middle portion of the dorsal compact bone of the distal phalanx?
Abnormal stress on the flexor tendons
Abnormal stress on the suspensory apparatus
Laminitis
Long toe, low-heel syndrome
Abnormal stress on the suspensory apparatus
Which of the following osseous cyst like lesions of the distal phalanx are sometimes incidentally found and/or clinically less important?
Osseous cyst like lesions at or palmar to the collateral fossa of the distal phalanx
Subchondral bone cysts in the midline of the distal phalanx
Cysts located in the lateral or medial border of the distal interphalangeal joint/distal phalanx
Cystic lesions in the distal aspect of the solar margin
Cysts located in the lateral or medial border of the distal interphalangeal joint/distal phalanx
Extensive ossification of the ungular cartilages is often associated with?
Enthesophytes of the latero- and mediodistal aspect of the proximal phalanx
Osteophytes of the articular margin of the distal phalanx
Bone trauma of the distal phalanx
Poor demarcation of the compact and spongy bone within the cartilages
All of the above
All of the above
An articular mid sagittal fracture of the distal phalanx is categorized as a type;
Type 1
Type 3
Type 4
Type 5
Type 3
A grade 3 ossification of the collateral cartilages is characterized by;
Ossification up to the level of the lateral or medial margins of the DIPJ
Ossification up to the level of the mid sagittal aspect of the DIPJ
Ossification up to the level of the most proximal aspect of the navicular bone
Ossification up to the level of the midpoint of the middle phalanx
Ossification up to the level of the most proximal aspect of the navicular bone
Which palmar process is most of the times affected in race horses in Australia?
Left lateral
Left medial
Right lateral
Right medial
All equally
Left lateral, Right medial
What is the reference value for horses with laminatis for the thickeness of the dorsal hoof wall and the ratio to the palmar length of the distal phalanx?
>20 mm, 28%
> 25 mm, 27%
<20 mm, 27%
<25 mm, 28%
>20 mm, 28%
What represent a radiolucent line in between the distal phalanx and the dorsal hoof wall or sole?
Keratoma
Necrotic laminar tissue
Serum collected between the dermal and epidermal laminae due to inflammation
Hoof abscess
Necrotic laminar tissue
Serum collected between the dermal and epidermal laminae due to inflammation
In case a laminitic horse has a distal phalanx, which sinks, which aspect goes first?
Medial
Lateral
Dorsal
palmar
Medial



