Question | Answer |
STROKE IMAGING = ? | * 1st thing to do = NONCONTRAST CT (see what the cause is or bd/no bd) .... * 2nd thing is to do a Diffusion Weighted MRI |
Areas more prone to having an infarct ? | * Watershed zones where the cerebral arteries end.... * Rare to see a cerebral artery injury n someone under 40 |
ISCHEMIC STROKE causes ? | * due to any occlusive arterial disease |
MRI vs CT on imaging ? | * CT = bone is white ..... * MRI depends on type T1 vs T2, but Fat is white on T1, T2 = fat is black and bone is white |
>50%MCA territory involved = ? | * A HIGH mortality rate |
Vasogenic Edema = ? | * increased extracellular fluid and affects with white matter |
Cytotoxic Edema = ? | * increased intracellular water and affects both white and gray matter |
How to see if it is a new stroke vs. a new stroke ? | * Easiest = see older films... * Older = no midline shift, atrophy, and large ventricle |
What are Lacunar Infarcts ? | * Usu due to some HTN issue and see little black areas from end arteries |
Hemorrhagic Stroke causes ? | * Usu see inolder ppl and usu due to a HTN issue |
SUBARACNOID HEMORRHAGE cause and what it presents like ? | * Top cause is due to a ruptured aneurysm... * Complains of WORST headache of their life. |
SUBDURAL HEMATOMA = ? | * Crescent shape and should concern you if a child presents with this |
EPIDURAL HEMATOMA = ? | * looks like a biconvex appearance |
EPIDURAL HEMATOMA Cx ? | * Can have a Lucid Interval, where they get knocked out, seem fine after, and then get way worse.... * usu from a skull fracture |
Used to measure Midline Shifts ? | * Septum Pellucidum |