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51 Cards in this Set

  • Front
  • Back
What 3 bones make up the acetabulum
Ilium
Ischium
Pubis
What is the centering for a hip?
symphysis pubis
On a coronal hip localizer, slices are prescribed from where to where?
Posterior to anterior musculature
What must be visualized on a coronal hip localizer?
Ilium and superior acetabulum to below lesser trochanter
Why do a coronal hip STIR?
Bony pathology
Contusion
mets
On sagittal hip slices are prescribed from where to where?
greater trochanger to the articular portion of the acetabulum
What must be visualized on a sagittal hip?
Ilium and superior acetabulum to below lesser trochanter
On a sagittal FSE T2 FATSAT hip slices are prescribed from where to where?
Greater trochanter to the articular portion of the aacetabulum
What does a FSE T2 FATSAT of the hip demonstrate?
flattening of the femoral head associated with AVN
cartilage tears
muscle tears
edema
On an axial hip slices are prescribed from where to where?
superior edge of lesser trochanter to articular portion of acetabulum
What is often used for labral tears?
arthogram
What scan is used for an arthrogram?
3D
What is the main artifact source in a hip?
Flow from femoral and iliac vessels
Flow comp makes ____ brighter and is useful on __W images
Fluid
T2W
What sequences should and shouldn't be used for hip prosthesis?
NO GRE
use SE or FSE with broad BW
What do the femoral condyles articulate with?
Tibial plateaus
Coronal femur slices are prescribed from where to where?
skin to skin along entire femur
What sequence is used for marrow space?
STIR
How is ghosting from the femoral vessels minimized?
spatial presats placed S and I
What are 4 properties of the patella?
Largest sesamoid bone
flat triangular bone
protects anterior joint surface
increases leverage of the quad extensor muscle
What is a meniscus
C shaped fibrous tissue
cushions articulation of condyles and tibial plateaus
Which meniscus is broader?
Medial
Which ligaments give stability to knee?
Cruciate
Which cruciate ligament is stronger?
PCL
What is a flattening of the undersurface of the patella characterized by patellar tracking cartilage problems?
Chondromalcia patella (CMP)
What is a baker's cyst?
Synovial cyst that forms usually in the posterior knee
What is a baker's cyst associated with?
Rheumatoid arthritis
Where is the center of the knee coil placed?
Lower border of patella
What ligament is oriented into the sagittal plane with a 10 degree external rotation
ACL
On the axial FSE T2 knee slices are prescribed from where to where?
Patella to tibial tuberosity
What is demonstrated by a knee axial FSE T2
patello-femoral joint
What must be visualized on a sagittal SE PD
lateral and medial collateral ligaments
On a sagittal SE PD knee slices are prescribed from where to where?
collateral ligaments through condyles with superior patella and tibial tuberosity on image
What does a PD knee demonstrate?
Tendon and meniscal damage
What does a sagittal FSE T2 FATSAT knee demonstrate?
Joint effusions
Bony pathology
Interstitial tears and partial meniscal tears
What confirms an ACL tear?
Non visualization on T2 fatsat
What sequence best demonstrates knee joint anatomy, meniscal tears, musculature, and the collateral ligaments?
FSE PD FATSAT
What sequence best demonstrates knee articular cartilage and collateral ligaments?
PD FATSAT
What sequence best demonstrates meniscal pathology?
T2W
What is the main source of artifacts in the knee?
Pulsation from the popliteal vessels
On what knee sequence is GMN useful?
T2W
What is the name of the formation of nitrogen bubbles?
Caisson disease
What is osteochondrosis of the head of femur in children?
Legg-Calve-Perth disease
What is the most commonly affecte site of AVN?
hip
Who is more affected by AVN?
M 4:1
What are 3 symptoms of AVN
Joint pain
Limited ROM
Decreased usage of limb
A Serpiginous line (low SI) with a fatty center is characteristic of what?
AVN
avn has what kind of SI on a t1
focal subchondral low
Hip dislocations are commonly associated with what?
femoral fracture
What is the most common type of hip dislocation?
posterior with fracture to posterior acetabulum
What are the S&S of hip dislocation?
Pain and loss of function