Lecture 10: Equine and Bovine Proximal limbs Flashcards
A rad marker is always ___ or ___
dorsal or lateral
hang films with dorsal or cranial to the: left or right
left
what is mAs
milliamps/second
what does KVP stand for
kilovolt peak
what is KVP
energy you take/wave generated that pushes electrodes to anode
do we want mAs and KVP low or high to highlight bone
mAs high and low KVP
what would the levels of KVP and MAs be if there was more gray and black
high KVP and low MAS
which part of x-ray tube spins for cooling
anode
what is an mA (milliampere) proportional to
of electrons produced
the higher the mA= the more __
electrons boiling at the cathode
MAs determines the # of __
electrons produced
if you have a low kVP then contrast is __
enhanced- more differential attenuation of beam
if you have a high kVP then less __ so decrease __
differential attenuation, decrease contrast
what would be the expected kVp and mAs be for this image (high, low)
High mAs, low kVp
What would you expect kVp and mAs to be for this image
High kVp and low mAs
if you halve mAs increase kVp by __%
20%
(Same rule applies if you double mAs you decrease by kVp by 20%)
increasing kVp will increase in film __ due to higher proportion of __ and ___
blackness, higher photon number and higher photo penetration
T or F: CR has no chemicals and still needs a computer processor
true
t or F: CR is more expensive than digital radiographs
false
T or f: digital radiography is fast process, 10 seconds from exposure to image
true
t or f: digital radiography requires film
false
what mAs has greatest exposure
4.0-8.0
what wrong
fracture olecranon
what type of scan is this
nuclear medicine scan
what wrong
Medial proximal radial cyst
what wrong
hip luxation
How do you perform a standing radiograph of pelvis
- Place cassette in inguinal region
- Suspend x-ray tube over gluteal region
- Abduct leg
what wrong
subluxation of hip
horse presents with puncture wound on left shoulder- what wrong and how do you know
sequestrum- 3 things required to sequestrum
1. Sequestra- bone
2. Involucrum- black area
3. Draining tract
horse presents with swollen tarsus. Had clostridial diarrhea 2 weeks prior- tx and responded well. Lavage joint 4 days ago and now non-weight bearing
What wrong in rad and top differentials
- Soft tissue swelling
- Bone lysis
Differentials: osteomyelitis., neoplasia
what is the P type of septic joints in foals
infection in physis/metapyhsis
what is E type of septic joints in foals
epiphyseal- subchondral bone infection
what is type S in types of septic joints in foals
synovial membrane
What wrong
acetabular fracture
what wrong
capital physeal fracture
what wrong
Cranial cruciate rupture
