Lower Extremities

Question 1

What are some indications for doing a hip MRI?

Answer 1

fracture, osteonecrosis, arthritis, labral tear, abductor tendon tear.

Question 2

What type of coil do we use and where do we place it for a hip MRI?

Answer 2

the “large coil” same thing we use for abdomens and cardiacs.

supine, head first, with the coil on the pelvic anteriorly.

Question 3

What is a trick we can do with the patients legs to make the greater and lesser trochanters seen better?

Answer 3

have the big toes together.

Question 4

The _____ view generally shows the entire pelvis

Sag, axial, or coronal

Answer 4

coronal

Question 5

What is the landmark/ cursor point for the hips?

Answer 5

put the laser over the pubic symphysis.

Question 6

When scanning the hip axially, what is your anatomic coverage?

Answer 6

the iliac fossa to the proximal femur including the lesser trochanter.

Question 7

When scanning axially for a hip, you should align the box ______ to the femoral heads

parallel or perpendicular?

Answer 7

paralel

Question 8

When scanning the hip coronally, what is your anatomy coverage and alignment?

Answer 8

Alignment is parallel to the femoral heads

you must include the pubis to posterior ischium

You are scanning anterior to posterior

Question 9

When scanning sagitally, you are scanning _____ to _____.

Lateral to medial? OR
medial to lateral?

Answer 9

lateral to medial

Question 10

When scanning sagittally on a hip, what is your anatomy coverage and aligment?

Answer 10

aligment is parallel to the labrum of the acetabalum

Must include the greater trochanter to the superior pubic ramus

Question 11

What is the function of the hip?

Answer 11

to carry the weight of the body in an erect position.

Question 12

What is the “ball and socket joint?

Answer 12

The hip :)

it contains a synovial ball + socket joint created by the femoral head and the acetablum of the pelvis.

Question 13

What is the “acetabulum” of the hip?

Answer 13

its a cuplike cavity created by the three bones of the pelvis

Question 14

What are the “three bones” of the acetabulum”?

Answer 14

the ilium, ischium and the pubis.

Question 15

What is the longest bone in the body?

Answer 15

the femur :) its also the strongest.

Question 16

The proximal part of the femur consists of what 4 areas?

Answer 16

the head, heck, and the greater and lesser trochanters.

Question 17

At the femoral head, there is an area that isnt covered by articular cartilage called what? and what does it do?

Answer 17

it is called the fovea capitis, which attaches to the ligamentum teres.

Question 18

The head of the femur is connected the femoral shaft by the femoral ____.

Answer 18

neck

Question 19

where is the greater trochanter located and what does it do?

Answer 19

it is located at the junction of the femoral neck with the femoral shaft.

It provides attachment for numerous muscles in the gluteal region.

Question 20

where is the lesser trochanter located and what is its importance?

Answer 20

it is at the posterior medial portion of the shaft and it provides insertion for the iliopsoas muscle.

Question 21

The ilium part of the hip is located next to the iliopsoas muscle

True or False

Answer 21

true

Question 22

Patients are positioned for femurs the same way as hips.

True or False

Answer 22

True, feet inverted , possibly taped together.

Question 23

What is your landmark when scanning the femur?

Answer 23

the midshaft of the femur

Question 24

When scanning a coronal we are scanning anterior to posterior.

Answer 24

true

Question 25

WHen scanning a femur coronally , we need to scan ____ to the shaft of the femur

Answer 25

parallel

Question 26

When scanning coronally for the femur, we need to make sure we include what anatomy?

Answer 26

the head of femur to the proximal tibia.

** make sure to include the musculature of the thigh.

Question 27

When scanning a femur axially, we are scanning superior to inferior.

True or False?

Answer 27

true

Question 28

What is your anatomic coverage for a femur axially?

Answer 28

from head of femur to the tibial plateau.

Question 29

When scanning sagittaly for a femur, we are scanning _____ to _____ ?

Answer 29

lateral to medial parallel to the shaft of femur

Question 30

What is our coverage for the sagital image of a femur?

Answer 30

greater trochanter and lateral condyle to the femoral head and medial condyle.

Question 31

Where do we put the laser on the machine for a knee MRI?

Answer 31

apex of the patella

Question 32

What is our anatomic coverage for an axial knee?

Answer 32

from ABOVE patella through the tibial tuberosity and the patella tendon insertion

Question 33

What is our anatomic coverage for a coronal knee?

Answer 33

patella to femoral condyles

Question 34

What is our slice alignment for a coronal knee?

Answer 34

parallel to the posterior margins of the femoral condyles.