Lumbar and SIJ

What type of image is this?

• Fat sensitive (T1) MRI

• Fluid sensitive (T2) MRI

• Radiograph

• CT

Answer explanation

Make sure to look at the hyperintensity of the CSF to determine fat vs fluid sensitive with spine imaging. Do not base it off of the hyperintensity of the subcutaneous fat for spine MRI.

What view is this image?

• Lateral

• Sagittal

• Axial

• Oblique

What is at the area marked by the star?

• L2-3 intervertebral foramen

• L2-3 intervertebral disc

• L3-4 intervertebral disc

• L3-4 intervertebral foramen

The green lines shows a disc herniation. What disc is involved?

• L2-3 intervertebral disc

• L4-5 intervertebral disc

• L3-4 intervertebral disc

• L5-S1 intervertebral disc

The yellow line shows a thickening of the ligament on the posterior part of the spinal canal. What is the ligament?

• Posterior longitudinal ligament

• Anterior longitudinal ligament

• Ligamentum flavum

• Interspinous ligament

Answer explanation

Here is a figure showing the location of the ligamentum flavum and how thickening can encroach into the spinal canal.

What type of image is this?

• Fat sensitive (T1) MRI

• Fluid sensitive (T2) MRI

• Radiograph

• CT

What type of image is on the left (a)?

• Fat sensitive (T1) MRI

• Fluid sensitive (T2) MRI

• Radiograph

• CT

What type of image is on the right (b)?

• Fat sensitive (T1) MRI

• Fluid sensitive (T2) MRI

• Radiograph

• CT

The radiologist was measuring the amount of sclerosis visible on each sacroiliac joint. Which one reports 74% sclerosis?

• Right SIJ

• Left SIJ

• Unable to tell from this view

What type of image is this?

• Fat sensitive (T1) MRI

• Fluid sensitive (T2) MRI

• Radiograph

• CT