Week 9 - Notes (Equine) Flashcards Preview

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Flashcards in Week 9 - Notes (Equine) Deck (31)
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1
Q

Equine Radiography

A

Hand held generators

Standard working distance 22” (=> inverse square law = more penetration due to it being closer)

2
Q

Large Animal

Imaging Equipment

A

Smaller, more mobile x-ray generators are common

Rolling stands beneficial (but can interfere w/your mobility)

Mobile practice is a great place for DR or true DR

Only the large practices will have fixed-mount tube heads

3
Q

Restraint and your safety

A

Size & Nervousness : Awareness & Respect

Large prey animals, startle easily = can really hurt you

Work down leg with your hand first, before placing cassette against it

Restraint = chutes or stocks might be useful

Sedation, another option

4
Q

Leg lifting for Pt immobilization keeping distance for personal & rad safety

A

Either use ropes or assistant to raise unaffected leg on ipsilateral side

5
Q

Mobility vs. Radiation safety?

A

Handheld device

Much closer to primary beam (both, radiographer as well as assistant holding the cassette)

6
Q

Cassette poles & stands

A
7
Q

Pt prep

Pull the shoes???

A

Ask DVM, if he/she would like you to pull shoes first

8
Q

Anatomy of the hoof

A
9
Q

Pt prep for hoof imaging

Clean, Trim & Pack the foot

A

Pack hoof w/something that clears air/pack sulcus

Foot preparation:

  • clean foot to avoid artifacts from debris
  • pack sulci w/play doh, vaseline or similar material
  • wrap w/Saran wrap, papertowels, diapers, …
10
Q

Elevate Feet to Beam Level

A

A true lateral projection is necessary to show any rotation of P3 within the hoof

11
Q

Cassette tunnel

A

Cassette goes inside

Horse can stand on it

12
Q

Standard nomenclature for radiographic projections in equines

A
13
Q

Navicular Block for Dorsopalmar Projection

A
14
Q

Cassette Block for Dorsopalmar

A
15
Q

DMPLO

DorsoMedialPlantar(or Palmar)oLateral Oblique

A

Oblique view makes one sesamoid visible, “buries” the other one in metatarsal(or carpal) bones

16
Q

Multiple view or series

A

Take several views from different angles of same anatomy to get 3D view

17
Q

Oblique projections

A
18
Q

Carpal anatomy

A

DVM is interested in joint spaces for presence or absence of cartilage

19
Q

Accessory carpal

A
20
Q

Dorsopalmar of carpus

A
21
Q

Flexed LM of carpus

A

Lateral Medial

Looking for bone chips, arthritis

Opens up joint to better view intercarpal spaces

22
Q

Dorsoproximal Dorsodistal

(Skyline View)

A
23
Q

Tarsus

A
24
Q

Skyline View of Tarsus

A
25
Q

Anatomical terms for cannon bone and splint bones

A

Cannon bone = Metacarpal/tarsal III

Splint bones = Metacarpal/tarsal II & IV

26
Q

Dorsopalmar Metacarpalphalangeal

A

“Screwdriver joint”

(Pointy end in center)

27
Q

Navicular & coffin bones

A

P1 = long pastern bone

P2 = short pastern bone

P3 = coffin bone

Navicular bone

28
Q

Navicular Block 65 degree

A

Developed by R. Redden, DVM

29
Q

Imaging Navicular Bone

A

Deep digital flexor tendon

30
Q

Dental X-ray horse

A
31
Q

C spine = subluxations congenital malformations

A

“Wobbler’s Syndrome”

C5, 6, 7 usual spot