Thoracic: Collimation and centering Flashcards
Thoracic radiograph centering
Caudal border of scapula
Thoracic radiograph: VD projection
Centering:
• Caudal border of the scapula centered on midline.
Collimation
- Cranial border: thoracic inlet
- V-trough entirely within collimated area
- Lateral borders: body wall
Thoracic radiograph: DV projection
Centering:
• Caudal border of scapula.
Collimation
- Cranial border: thoracic inlet
- V-trough entirely within collimated area
- Lateral borders: body wall
Abdominal radiograph: VD projection
Centering: Medial aspect of last rib centered on sternum.
Collimation:
* Cranial border: on midline halfway between the caudal border of scapula and the xiphoid.
* Lateral borders: abdominal wall within V-trough.
Abdominal radiograph: Lateral Projection of the Abdomen
Centering: Slightly caudal to last rib.
Collimation:
- Cranial border: halfway between the caudal border of scapula and the xiphoid.
-Dorsal border: spinous processes of vertebral column.
-Ventral border: sternum.
Pelvic Radiographs: VD-Extended Hip Projection
Centering: Midline between the left and right ischial tuberosity.
Collimation:
* Cranial border: caudal to the wing of ilium and distal to the patella.
* Lateral borders: lateral to the ischium.
Pelvic Radiographs: VD Frog Leg Projection
Centering: Midline between the left and right ischial tuberosity.
Collimation:
* Cranial border: cranial to the wing of ilium to caudal border of ischium.
* Lateral border: to include proximal third of femur.
Pelvic Radiographs: Lateral Projection
Centering: Greater trochanter of femur
Collimation:
* Cranial edge of ilium to caudal border of ischium.
* Dorsal border: dorsal to the wing of the ilium.
Forelimb Radiographs: CdCr Projection Shoulder
Centering: Palpate proximal head of the humerus and the glenoid of the scapula. Center beam at the indentation palpated.
Collimation:
Include the distal third of the scapula and proximal third of the humerus.
Forelimb Radiographs: Lateral Projection of the Shoulder
Centering:
* Palpate proximal head of the humerus and the glenoid of the scapula.
* Center beam approximately 1 inch (2.5 cm) caudal from the front of the limb for a small dog and approximately 2 inches caudal (5 cm) for a large dog.
Collimation:
* Include the distal third of the scapula and proximal third of the humerus, excluding the upper leg that is
pulled caudally.
Forelimb Radiographs: CdCr Projection of the Scapula
Centering: Center of the scapula
Collimation:
* Lateral to the body and medial to the spine.
* Include the shoulder joint and the caudal border of scapula.
Forelimb Radiographs: Lateral Projection Shoulder
Centering: center of scapula
Collimation:
Proximal to the shoulder joint to the caudal edge of the scapula
Forelimb Radiographs: Cdcr Projection Humerus
Centering: midshaft of humerus
Collimation:
Proximal to the shoulder joint to distal to the elbow joint
Forelimb Radiographs: Lateral Projection Humerus
Centering: midshaft of humerus
Collimation:
Proximal to the shoulder joint to distal to the elbow joint
Forelimb Radiographs: CrCd Projection Elbow
Centering: humeral condyle
Collimation:
From the distal third of the humerus to the proximal third of the radius and ulna
Forelimb Radiographs: Lateral projection Elbow
Centering: Palpate and center on the humeral condyles
Collimation:
Distal third of the humerus to the cranial third of the radius and ulna.
Forelimb Radiographs: CrCd Projection Radius and Ulna
Centering: midshaft of radius and ulna
Collimation:
From proximal to the elbow joint and distal to the carpal joint
Forelimb Radiographs: Flexed Lateral Projection Elbow
Centering: Palpate and center on the humeral condyles
Collimation:
Center on joint, and include the distal third of the humerus and proximal third of radius and ulna.
Forelimb Radiographs: Lateral Projection of Radius and Ulna
Centering: midshaft of radius and ulna
Collimation: From proximal to the elbow joint and distal to the carpal joint
Forelimb Radiographs: Dorsopalmar Projection of Carpus
Centering: Center on carpus joint
Collimation: From distal third of radius and ulna to proximal third of the metacarpals
Forelimb Radiographs: Lateral Projection of Carpus
Centering: carpal joint
Collimation: From distal third of radius and ulna to proximal third of the metacarpals
Forelimb Radiographs: Lateral and Medial Oblique Projection Carpus
Centering: carpal joint
Collimation: From distal third of radius and ulna to proximal third of metacarpals
Forelimb Radiographs: Extended Lateral Projection Carpus
Centering: carpal joint
Collimation: From distal third of radius and ulna to proximal third of metacarpals
Forelimb Radiographs: Dorsopalmar Projection of Metacarpals
Centering: Halfway between carpus and phalanges.
Collimation: Distal third of radius and ulna to proximal third of the digits.
Forelimb Radiographs: Lateral Projection of Metacarpals
Centering: Halfway between carpus and phalanges
Collimation: From the distal third of radius and ulna to the proximal third of the digits.
Forelimb Radiographs: Dorsopalrma Projection of Digits
Centering: just above digits
Collimation: From the metacarpals proximally to the end of the digits distally
Forelimb Radiographs:Lateral Projection of Digits
Centering: just above digits
Collimation: From the metacarpals to the end of the digits
Hindlimb Radiographs: Lateral Projection of Femur
Centering: Midshaft of the femur halfway between the stifle and coxofemoral joint.
Collimation: From the ischium on the unaffected limb.
Hindlimb Radiographs: Craniocaudal Projection of Femur
Centering: Midshaft of the femur halfway between the stifle and coxofemoral joint.
Collimation:
- Cranial: from the greater trochanter to the proximal third of the tibia.
- Lateral: from the ventral midline to the body wall.
Hindlimb Radiographs: Craniocaudal Projection of Stifle
Centering: Center on stifle joint
Collimation: Proximal to the distal third of the femur and distal to proximal third of the tibia.
Hindlimb Radiographs: Lateral Projection of Stifle
Centering: Center on stifle joint
Collimation: Proximal to the distal third of the femur and distal to proximal third of the tibia.
Hindlimb Radiographs: Caudocranial Projection of Tibia and Fibula
Centering: Center on the midshaft of the tibia halfway between the stifle and tarsus.
Collimation: From proximal to the distal third of the femur to distal to the proximal third of the tarsus.
Hindlimb Radiographs: Lateral Projection of Tibia
Centering: Midshaft of the tibia halfway between the stifle and tarsus
Collimation: From proximal to the distal third of the femur to distal to the proximal third of the tarsus.
Hindlimb Radiographs: Dorsoplantar Projection of Tarsus
Centering: Center on tarsal joint halfway between the distal tibia and the proximal metatarsals.
Collimation: Proximal to the distal third of the tibia and distal to the proximal third of the metatarsals
