IM Final MRI.txt
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What do fluid collections help distinguish in MRI?
Fluid = signs of infection
What type of MRI is a spin lattice relaxation time?
What type of MRI is a spin-spin relaxation time?
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?
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?
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?
What are T1/T2 readings (hyper/hypointense) for acute and chronic tendon tears?
- Chronic:T1 = hyperintense, T2 = hypointense
- Acute: T1 & T2 = hyperintense
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