Diagnostic Imaging Review

Flashcard highlighting the concept of AFAST scan in diagnostic imaging.

describe how a dog would be positioned for a dorsopalmar view of the left paw

sternal recumbency with the forelimbs extended, hind limbs natural position

describe how a patient would be positioned for a dorsoplantar view of the right paw

sternal recumbency with the forelimbs in a natural position, right hind limb extended, left hind limb flexed next to the body

at what age can a dog’s hips be certified by OFA or penn - HIP 

OFA - 24 months 

PennHIP - 16 weeks

how is a patient positiond for a OFA radiograph

dorsal recumbency, femurs parallel and rotated medially, patellae centered in trochlear grooves  

what views are taken for Penn - HIP radiographs

VD pelvis extended leg, distraction and compression views

what is the typical FFD/SID used in equine radiography

26-30

what is AFAST scan in ultrasonography 

a focused assessment with sonography for trauma scan, performed at presentation, used to detect free fluid, used to direct rapid therapeutic interventions 

anechoic

black

hyperechoic

white

hypoechoic 

gray/darker gray 

mirror image artifact

reflection of an image at a rounded, reflective interface

accoustic shadowing

occurs when beam cannot penetrate gas or mineralized structures

acoustic enhancement 

area of increased echogenicity distal to area of low attenuation/fluid filled structures 

what are the different modes in ultrasonography

B - Brightness

M - Motion mode

Doppler mode - used to detect blood flow

when performing an ECG, what color lead is attached to each limb

Right arm - White, Left arm - Black, Right leg - Green, Left leg - Red.

what are the five arrhythmias that are associated with cardiac arrest

sinus bradycardia, electromechanical dessicans, ventricular tachycardia, ventricular fibrillation, ventricular asystole

how should a bird’s legs be positioned for a lateral view of the coelom to prevent rotation 

superimpose and taped individually 

where is the primary beam centered for a lateral view of a ferret’s abdomen

caudal to the last rib