Radiology Positioning Test

Abdominal Lateral - Measure

Caudal aspect of the 13th rib

Abdominal Lateral - Central Ray - Canine

Over caudal aspect of the 13th rib at level of l2 to l3

Abdominal Lateral - Central Ray - Feline

Two to Three finger widths caudal to the 13th rib

Abdominal Ventrodorsal - Measure

Caudal aspect of the 13th rib at level of umbilicus

Abdominal Ventrodorsal - Central Ray - Canine

Center on midline over caudal aspect of the 13th rib at level of umbilicus

Abdominal Ventrodorsal - Central Ray - Feline

Two to three finger widths caudal to 13th rib

Thorax Lateral - Measure

Caudal border of the scapula over the thickest part of the thorax

Thorax Lateral - Central Ray

At the caudal border of the scapula, between the fifth and sixth ribs

Thorax Ventrodorsal - Measure

Over the caudal border of the scapula at the highest point of the sternum

Thorax Ventrodorsal - Central Ray

Midline over the superimposed spine and sternum at the caudal margin of the scapula or between the fifth and sixth ribs

Thorax Dorsoventral - Measure

Over the caudal border of the scapula or at the highest point

Thorax Dorsoventral - Central Ray

Midline at the caudal margin of the scapula or between the fifth and sixth rib

Lateral (Mediolateral) Scapula - Measure

Dorsally at the cranial border of the scapula at about the site of the first vertebral body

Lateral (Mediolateral) Scapula - Central Ray

Center of the Scapula

Caudocranial Scapula - Measure

At the level of the scapulohumeral articulation so that the calipers are extended over the first thoracic vertebral body

Caudocranial Scapula - Central Ray

Center of the scapula

Lateral (Mediolateral) Shoulder - Measure

At the level of the of the shoulder joint

Lateral (Mediolateral) Shoulder - Central Ray

Center at the scapulohumeral articulation (Shoulder joint)

Caudocranial Shoulder - Measure

At the level of the scapulohumeral articulation (shoulder joint)

Caudocranial Shoulder - Central Ray

Center at the scapulohumeral articulation (Shoulder joint)

Lateral (Mediolateral) Humerus - Measure

Toward the proximal humerus at the level of the scapulohumeral articulation (Shoulder Joint)

Lateral (Mediolateral) Humerus - Central Ray

Midshaft of the humerus

Caudocranial Humerus - Measure

Midshaft toward the proximal aspect; across at the level of T1

Caudocranial Humerus - Central Ray

Midshaft of the humerus

Lateral (Mediolateral) Elbow - Measure

Thickest part of the elbow at the distal humerus

Lateral (Mediolateral) Elbow - Central Ray

Center on the distal humeral condyles (elbow)

Craniocaudal Elbow - Measure

Thickest part of the elbow at the distal humerus

Craniocaudal Elbow - Central Ray

Center on the humeral condyles at the level of articulation

Lateral (Mediolateral) Radius/Ulna - Measure

Site of the distal humerus

Lateral (Mediolateral) Radius/Ulna - Central Ray

Midshaft of the radius and ulna

Craniocaudal Radius/Ulna - Measure

Site of the distal humerus

Craniocaudal Radius/Ulna - Central Ray

Midshaft of the radius and ulna

Lateral (Mediolateral) Foot (Carpus) - Measure

At the carpus joint

Lateral (Mediolateral) Foot (Metacarpus or phalangealmetacarpal) - Measure

At the site of the phalangealmetacarpal articulation

Lateral (Mediolateral) Foot (Capus) - Central Ray

Middle row of carpus bones

Lateral (Mediolateral) Foot (Metacarpus or phalangealmetacarpal) - Central Ray

Center of the phalangealmetacarpal articulation

Dorsopalmar Foot (Carpus) - Measure

Carpus joint

Dorsopalmar Foot (Metacarpus or phalanges) - Measure

Site of the phalangeal-metacarpal articulation at the level of the middle phalanx

Dorsopalmar Foot (Carpus) - Central Ray

Middle row of carpal bones

Dorsopalmar Foot (Metacarpus or phalanges) - Central Ray

Third and forth phalangeal-metacarpal articulations

Lateral Pelvis - Measure

At the level of the trochanter or the thickest part

Lateral Pelvis - Central Ray

Greater trochanter of femur

Ventrodorsal (Extended-Leg) Pelvis - Measure

Thickest part of the pelvis

Ventrodorsal (Extended-Leg) Pelvis - Central Ray

Midline between the caudal ishia

Ventrodorsal (Frog-Leg) Pelvis - Measure

Thickest part of the pelvis or over acetabulum

Ventrodorsal (Frog-Leg) Pelvis - Central Ray

Midline at the caudal portion of the pubis

Lateral (Mediolateral) Femur - Measure

Midshaft of the femur

Lateral (Mediolateral) Femur - Central Ray

Midshaft of the femur

Craniocaudal Femur - Measure

Midshaft of the femur

Craniocaudal Femur - Central Ray

Midshaft of the femur

Lateral (Mediolateral) Stifle - Measure

At the distal end of the femur

Lateral (Mediolateral) Stifle - Central Ray

Center on the indentation of the stifle joint

Caudocranial Stifle - Measure

Distal end of the femur

Caudocranial Stifle - Central Ray

The stifle joint

Lateral (Mediolateral) Tibia/Fibula - Measure

Midshaft of the tibia and fibula

Lateral (Mediolateral) Tibia/Fibula - Central Ray

Midshaft of the fibula and tibia

Caudocranial Tibia/Fibula - Measure

Midshaft of the tibia and fibula

Caudocranial Tibia/Fibula - Central Ray

Midshaft of the tibia and fibula

Lateral (Mediolateral) Foot (Tarsus) - Measure

At the tarsus joint

Lateral (Mediolateral) Foot (Metatarsus or Phalanges) - Measure

On the Joint

Lateral (Mediolateral) Foot (Tarsus) - Central Ray

At the tarsus joint

Lateral (Mediolateral) Foot (Metatarsus or Phalanges) - Central Ray

On the central bone

Plantarodorsal (Tarsus) Foot - Measure

Tarsus joint

Plantarodorsal (Matatarsus or Phalanges) - Measure

On the Joint

Plantarodorsal (Tarsus) Foot - Central Ray

Tarsal Joint

Plantarodorsal (Metatarsus or Phalanges) - Central Ray

On the central bone

Lateral Cervical Vertebrae - Measure

Across the shoulder at the level of C6

Lateral Cervical Vertebrae - Central Ray

C3 to C4

Ventrodorsal Cervical Vertebrae - Measure

Level or C6 near the manubrium

Ventrodorsal Cervical Vertebrae - Central Ray

C3 to C4

Lateral Thoracic Vertebrae - Measure

Highest point of the midthorax

Lateral Thoracic Vertebrae - Central Ray

T6 to T7 or the caudal border of the scapula

Venrodorsal Thoracic Vertebrae - Measure

T6 to T7 or the caudal border of the scapula

Ventrodorsal Thorax Vertebrae - Central Ray

T6 to T7 or the caudal border of the scapula

Lateral Thoracolumbar Vertebrae - Measure

Highest point of the ribs

Lateral Thoracolumbar Vertebrae - Central Ray

T13 to L1 intervertebral space

Ventrodorsal Thoracolumbar Vertebrae - Measure

Highest point of the midthorax

Ventrodorsal Thoracolumbar Vertebrae - Central Ray

T13 to L1 intervertebral space

Lateral Lumbar Vertebrae - Measure

Level of L1

Lateral Lumbar Vertebrae - Central Ray

L3 to L4

Ventrodorsal Lumbar Vertebrae - Measure

Level of L1

Ventrodorsal Lumbar Vertebrae - Central Ray

Level of L4

Lateral Lumbosacral Vertebrae - Measure

Level of the lumbosacral junction or the highest point of the wings of the ilia

Lateral Lumbosacral Vertrebrae - Central Ray

Level of the lumbosacral junction

Ventrodorsal Lumboscal Vertebrae - Measure

Wings of the ilia

Ventrodorsal Lumboscal Vertebrae - Central Ray

On the lumbosacral junction, caudal to the wings of the ilia

Lateral Caudal Vertebrae - Measure

Thickest Part of the tail

Lateral Caudal Vertebrae - Central Ray

Area of Interest

Ventrodorsal Caudal Vertebrae - Measure

Thickest part of the tail

Ventrodorsal Caudal Vertebrae - Central Ray

Area of Interest