IM Final MRI.txt

What do fluid collections help distinguish in MRI?

Fluid = signs of infection
What type of MRI is a spin lattice relaxation time?

T1
What type of MRI is a spin-spin relaxation time?

T2
What is the TE/TR measurement for T1 and T2?
- T1 = short TE/TR
- T2 = long TE/TR
What is a VOXEL?

pixel, cube component digitally utilized to build 3D images
What is the cutoff for short/long TE/TR?
- Short
- TE = 40
- TR = 500
- Long
- TE= 90
- TR = 1500
What is TE/TR for spin echo?
- Long TR >1500
- Short TE < 40
Common slice pattern for MRI?

Lateral to medial
Three axis of MRI?
- Transverse
- Sagittal
- Coronal
What is Gadolinium used for?

increase contrast and sensitivity to fluid for MRI
What is the Magic Angle Effect?
- 55 degree artifact
- present on T1 but lost on T2
What is the most common tendonopathy?

Achilles (42%)
What are T1/T2 readings (hyper/hypointense) for acute and chronic tendon tears?
- Chronic:T1 = hyperintense, T2 = hypointense
- Acute: T1 & T2 = hyperintense

Author

kepling

96628

Card Set

IM Final MRI.txt

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IM Final MRI

Updated

8/10/2011, 7:04:35 PM

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