We report a case of Wernicke encephalopathy in which the only sign of acute disease was enhancement of the mamillary bodies. This case demonstrates the utility of gadolinium enhancement at MR imaging as a means of diagnosing or confirming the syndrome of Wernicke encephalopathy even in the absence of atrophy or T2 abnormalities within the diencephalon and… (More)
A patient with documented subarachnoid hemorrhage underwent conventional angiography, which was negative. MR angiography performed immediately after the conventional angiogram demonstrated a 4-mm anterior communicating artery aneurysm. This finding was confirmed 1 week later with repeat angiography, and the aneurysm was clipped surgically.
The signals and artifacts in cerebral blood vessels were systematically studied using a new three-dimensional Fourier transform (3DFT) technique, spoiled gradient recalled acquisition in steady state (SPGR), with parameters optimized for T1-weighted brain imaging. Twenty consecutive patients referred for routine cranial MR imaging were prospectively studied… (More)