NeuroRad Cases - Klein

Question 1

What are the 3 main anatomical divisions of neuroradiology?

Answer 1

Brain

Spine

Head & Neck

Question 2

Neuro CT exams are usually performed without contrast. Name three exceptions

Answer 2

• CT of head and neck looking for infection or malignancy
• CT angiograms of the head and neck
• CT venograms of the head and neck

Question 3

Give 3 major indications for MR with IV gadolinium contrast

Answer 3

• Infection
• Primary tumors or metastatic disease
• Demyelinating disease (MS)

Question 4

Is contrast usually necessary for MR evaluation of stroke?

Is MRA of the head usually done with or without contrast?

Is MRA of the neck or MRV usually done with or without contrast?

Answer 4

No

With

Without

Question 5

MRI contrast (gadolinium) is usually well-tolerated. Name one common exception to this rule.

Answer 5

End-stage renal disease

Question 6

Give several differentials for acute intracranial hemorrhage

Answer 6

• trauma
• hypertension
• underlying neoplasm
• vascular malformation
• aneurysm
• cerebral amyloid angioplasty
• venous thrombosis
• anticoagulation
• drug abuse
• hemorrhagic conversion of infarct

Question 7

On CT, is acute hemorrhage hyperdense (bright) or hypodense (dark)?

Old hemorrhage?

Answer 7

hyperdense (bright)

hypodense (dark)

Question 8

Are acute infarcts usually apparent on CT?

Answer 8

No. Get an MRI if clinical suspicion supports it.

Question 9

Which MRI sequence is best for finding acute ischemic infarct?

Answer 9

DWI (diffusion weighted imaging)

Question 10

What imaging modality is most commonly used for initial screening of spine trauma?

Answer 10

CT