Mt Flashcards
T1
Fat is white
Water is black
Good detail
T2
Fat s dark grey
Water is white
Good for edema
PD (proton density)
Fat is light grey
Water is a little darker grey
Good for cartilage
Not very common
FS PD FSE (fat suppressed proton density fast spin echo)
The fat is black
the water is bright
it’s good for bone marrow Adema synovial fluid tendons ligaments and cartilage evaluation
Short T1 inversion recovery (STIR)
Fat is black
Water is bright
Takes longer than FS PD FSE
Good for bone marrow edema, synoval fluid, tendons, ligaments, and cartilage
MRA Magnetic resonance angiography
Used to see vessels
Which one of the following best describes an MR magnet with a magnetic strength of 0.5 - 1.0 Tesla:
Intermediate strength
All of the following are contra indications to MR except
Prosthetic hip replacements
Which one of the following best describes the time between excitation poses
TR
Which one of the following is associated with GIRD
Posterior inferior glenohumeral ligament
When describing two adjacent signals if one is darker than the other which one of the following best describes the darker signal
Hypointense
Which one of the following is a fat suppressed image
STIR
Fat such as Merrill is high signal, white on T1
True
Annular tears seen in a lumbar disc herniation indicates a herniation is
True
Which one of the following best describes the disc displacement involving 26-50% of the circumference of the desk
Broad-based
Which one of the following best describes a disc herniation in which the base of the lesion is wider than the amount of tears extending into the Canal
Protrusion
Free fragments can complicate which one of the following types of disc herniation’s
Sequestration
all the following are true regarding a cute disc herniation
Positive no stress test such as SLR
Positive neurologic findings
Positive MR
Which one of the following types of modic and play changes invariably associated with painful desks
Type one
Which one of the following types of modic changes indicates the blood supply to the desk has been cut off
Type three
All of the following are true regarding degenerative spondylolisthesis
Scleratogenous leg pain
Leg pain comes and goes
Very common
Your patient slipped and fell onto the buttocks in a grocery store 24 hours before entering your office was local I significant pain at L1. Your x-rays show what appears to be a recent compression fracture and your DAC be our concurs. However, the grocery store is disputing that this is recent. Which one of the following would best be used to prove the fracture was recent:
MR
Regarding a universal compression fracture, all of the following favor osteoporosis as the cause.
Focal involvement
No pedicle involvement
Posterior body convexity
All of the following have been associated with syrinx formation
Cord tumor
Cord trauma
Idiopathic
Which one of the following would best be used to evaluate a head trauma lesson 24 hours old one brain bleed is a possibility
CT
You’ve been treating a whiplash patient for a week she is experiencing worsening headaches and her cognitive skills seem to be diminishing. What should you consider and what should you order?
Sub Dural bleed, MR
Which one of the following studies measures the speed of water molecules
Diffusion weighted MR
Diffusion MR can detect an acute stroke or conventional MRI does not
True
Are Tarlov cysts clinically significant?
No
Mixed circular areas of increased signal intensity seen in the meniscus of the knee is consistent with which one of the following
Type I meniscus
Which one of the following is most likely to act I denticle to and a cute disc herniation in the lumbar spine
Synovial cyst
A patient you have been treating for years comes in complaining of a severe headache unlike anything I’ve ever had before. They are speaking normally have normal tongue movement and can raise both arms without a problem. Which one of the following is the most likely cause
Vertebral artery dissection
Which of the following are associated with the acronym slap lesion
Superior
Labral
Anterior
Slap lesions are often associated with chronic overhead throwing injury such as in a baseball pitcher
True
Which one of the following meniscal patterns in the knee indicates predisposition to a true tear
Type II
Which one of the following would be the most likely place to see bone bruises on sagittal MRI images of the knee with an acute ACL tear
Anterior lateral femoral condyle, posterior lateral tibia
Which one of the following is most affected in jumpers knee
Patellar tendon
Which one of the following is most likely to result in an anterior labral tear of the shoulder
Anterior inferior shoulder dislocation
Regarding the meniscus of the knee, which one of the following is best described as a linear area of increased signal which extends to an articular surface
Type III
Which one of the following minutes ago patterns represents a true meniscal tear
Type III
Use of contrast in the shoulder increases the chance of seeing labral tears
True
