Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Week 2

9/19 - Normal Rad

QuestionAnswer
Name some contraindications of a MRI? (let's say 5 for fun) pacemakers, cerebral aneurysm clips, certain heart valves, IUD's, cochlear implants, neurostimulators, welders, tattoos (eyeliner)
What atom is used for making an MRI? Hydrogen, b/c doesn't have any neutrons so the nucleus is easily magnetized.
For an MRI tissue contrast is weighted based on (FA), (TR), (TE), (TI). What do these abbreviations stand for? FA = Flip angle, TR = Repetition time, TE = Echo time, TI = Inversion time
When is Fat bright, T1 or T2? When is water bright, T1 or T2? In T1 fat is bright and water (CSF) is dark. In T2, H2O is bright, (also he said Nowadays Fat is bright on T2 as well).
***T/F Air, cortical bone, ligaments and tendons have low intensity (dark) signals on ALL sequences? True, what this means is those areas will show up dark on T1, T2, PD (proton density) and STIR sequences
***TR < 1000ms, and T < 30ms, FA = 90 degrees. (is this T1 or T2) T1
****TR > 2000ms, TE > 60ms, and FA = 90 degrees? (is this T1 or T2)? T2
Is the repetition time and echo time larger in T1 or T2 weighted images? T2
True or false? A three week old hemorrhage (subacute hemorrhage) will show up dark on a T1 weighted image. True!
What is it called when the pedicles on C2 are snapped? Hangman's fracture
I would for sure know the numbers for T1 and T2, and what shows up on each. That means don't discard the flashcards until you fear them as if they were giggleman
Created by: pcc Normal Rad