Imaging Flashcards
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is MRI best used for?
Soft tissue pathology and disc herniations.
What is the difference between T1 and T2 MRI scans?
T1 highlights bone (appears bright), T2 highlights fluids (appear bright).
What are contraindications for MRI?
Presence of metal in the body, claustrophobia.
What are the major densities observed in standard X-rays?
Air, fat, fluid, bone.
What is a bone scan useful for?
Revealing uptake of radiopharmaceutical substances into areas of reactive bone, stress fractures, and avulsions.
What is computed tomography (CT) best used for?
Bony pathology, providing high-resolution image slices.
What is the principle behind emission imaging?
Using radiopharmaceutical agents introduced into the body to produce gamma-ray emissions.
What is Wolff’s Law?
Bone reacts over time by strengthening areas of increased stress and demineralizing or eliminating areas of lowered stress.
What is the ABCS of imaging?
Alignment, Bone Density, Cartilage, Soft Tissue.
What is the anterior-posterior external rotation view of the shoulder?
A view with the central ray directed perpendicular to a point 1 inch inferior to the coracoid process.
What is the West-Point view of the shoulder?
A projection for assessing the anteroinferior aspect of the glenoid labral complex.
What is a Bankart lesion?
An injury to the anteroinferior aspect of the glenoid labral complex.
What is a Hill-Sachs lesion?
A posterolateral humeral head compression fracture often secondary to recurrent anterior shoulder dislocations.
What is the standard view for elbow imaging?
Anteroposterior view with the central ray perpendicular to the elbow joint.
What is the lateral view of the elbow?
A projection with the central ray perpendicular to the elbow joint.
What is the semipronated oblique view of the wrist?
A view with the central ray passing through the midcarpal joint.
What is the anteroposterior open mouth view?
A projection to assess the odontoid and C1-C2 alignment.
What is a dens fracture?
A fracture of the dens, classified into Grade 1 (stable), Grade 2 (unstable), and Grade 3 (fracture through body of C2).
What is the Hangman’s fracture?
A fracture where C2 overhangs C3, often due to trauma.
What is ankylosing spondylitis?
A condition characterized by syndesmophytes bridging anterior vertebral bodies and ossification of the annulus fibrosis, leading to a ‘bamboo spine’.
What is the ‘totem pole’ view?
An anteroposterior view of the lumbar spine.
What is the ‘Scottie Dog’ view?
An oblique view of the lumbar spine, useful for identifying spondylolysis and spondylolisthesis.
What is spondylolysis?
A defect in the pars interarticularis, often appearing as a ‘Scottie Dog with a collar’ in oblique imaging.
What are the standard views for pelvis and hip imaging?
Anteroposterior and frog-leg views.
What is Shenton’s Line?
A continuous line along the inferior border of the superior pubic ramus and the medial border of the femoral neck.
What is the sunrise view of the knee?
A view designed to visualize the patella in the groove between femoral condyles.
What is the tunnel view of the knee?
A projection designed to show the intercondylar notch between femoral condyles.
What is the standard view for ankle imaging?
Anteroposterior and lateral views.
What is the mortise view of the ankle?
A projection designed to examine the entire joint without overlay from the fibula.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
What is ultrasound imaging?
A form of imaging that uses sound waves to create images of structures within the body.
