Imaging for Headache Flashcards
1
Q
2 modalities used for head imaging
A
CT
MRI
2
Q
IV contrast is used in CT to see…
A
The vessels
Can be a venogram or angiogram
3
Q
Red flags for headache
A
Systemic symptoms, known Ca, immunocompromised Neurologic deficit Onset sudden and severe Older patient with new headache Previous headache changes character Positional Pregnant
4
Q
Is white or gray matter darker on CT? Why?
A
White is darker because is the tracts are myelinated, and fat is darker than water
Gray matter is nuclei which have higher water content
5
Q
What is usually the first imaging modality ordered?
A
Non contrast CT of the head
6
Q
Signs of SAH
A
Sudden onset Severe headache Photophobia Neck stiffness Altered LOC
7
Q
5 cancers that most commonly cause brain metastasis, and one type of cancer that never goes to brain
A
Lung Breast GI Melanoma Renal Never prostate!
