high signal in diffusion weighted imaging
ischemic stroke
radiology
low intensity in T2WI
iron(hemosiderin=chronic hemorrhage), dioxyhemoglobin(acute hemorrhage),
radiology
low intensity in both T1WI, T2WI
air, bone cortex, flow void
radiology
T1WI T2WI high intensity
T1→ ☆fat, ☆high protein(posterior pituitary), ☆methemoglobin(subacute hemorrhage),
radiology
chest X-ray, CT effective radiation dose
chest X-ray 0.1mSv
radiology
