Lower extremity

Question 1

The full body coil should be used on all the following exams, except:

Answer 1

forefoot

Question 2

T or F: For better visualization of the femoral neck in a hip or femur image, the feet should be held in eversion.

Answer 2

false

Question 3

Axial slices for an MR hip protocol are prescribed:

Answer 3

Superior to inferior

Question 4

For a venous study of the lower leg, the axial slices should be set-up going _____________ to ______________ due to the blood flow direction.

Answer 4

superior; inferior

Question 5

what is the most common mass in the popliteal fossa?

Answer 5

Baker cyst

Question 6

To minimize magnetic susceptibility artifact from a hip prosthesis, a technologist should

Answer 6

Use SE or FSE sequences with a broad receive bandwidth

Question 7

Traditionally, the axial slices of the foot should be:

Answer 7

Perpendicular to the long axis of the foot

Question 8

T or F: Toe movement will not affect MR foot image quality

Answer 8

false

Question 9

The hip is one of the most frequent sites for which of the following:

Answer 9

Avascular necrosis

Question 10

For axial slices of the hips, align the slices:

Answer 10

superior surface of both femoral heads

Question 11

To better place the __________ in the center of the coil, the foot can be elevated with some padding.

Answer 11

Ankle/Hindfoot

Question 12

T or F: MRI is helpful for detection of a stress fracture within a bone.

Answer 12

true

Question 13

Which of the following is thought to be due to chronic entrapment of the nerve by the intermetatarsal ligament generally around the 2nd or 3rd metatarsal?

Answer 13

Morton’s Neuroma

Question 14

Which of the following best describes the ACL

1) Extends from the medial aspect of the lateral femoral condyle to the posterior tibial spine
2) Extends from the medial aspect of the medial femoral condyle to the anterior tibial spine
3) Extends from the medial aspect of the lateral femoral condyle to the anterior tibial spine
4) Extends from the lateral aspect of the medial femoral condyle to the anterior tibial spine

Answer 14

3) Extends from the medial aspect of the lateral femoral condyle to the anterior tibial spine

Question 15

To better evaluate the ACL, positioning for knee imaging may require:

Answer 15

15 degree external rotation

Question 16

Besides a mass, what other pathology may be better visualized with contrast in a foot study?

Answer 16

Osteomyelitis

Question 17

T or F: MR knee arthrography can be useful to identify recurrent tears in the knee following meniscectomy.

Answer 17

true

Question 18

The optimal plane to use when evaluating patients for cruciate ligament tears of the knee is the:

Answer 18

Sagittal

Question 19

T or F: Due to the foot anatomy, the slice sequences are usually set up with some oblique quality to them

Answer 19

true

Question 20

T or F: Ideal ankle positioning includes dorisflexion of the foot.

Answer 20

true

Question 21

T or F: A bursa is a fat filled sac that allows smooth motion between two uneven surfaces

Answer 21

false

Question 22

T or F: When performing a MSK study, it is often helpful to place a marker over the ROI.

Answer 22

true