PT  - JOURNAL ARTICLE
AU  - Bryan, R N
AU  - Levy, L M
AU  - Whitlow, W D
AU  - Killian, J M
AU  - Preziosi, T J
AU  - Rosario, J A
TI  - Diagnosis of acute cerebral infarction: comparison of CT and MR imaging.
DP  - 1991 Jul 01
TA  - American Journal of Neuroradiology
PG  - 611--620
VI  - 12
IP  - 4
4099  - http://www.ajnr.org/content/12/4/611.short
4100  - http://www.ajnr.org/content/12/4/611.full
SO  - Am. J. Neuroradiol.1991 Jul 01; 12
AB  - The appearance of acute cerebral infarction was evaluated on MR images and CT scans obtained in 31 patients within 24 hr of the ictus; follow-up examinations were performed 7-10 days later in 20 of these patients and were correlated with the initial studies. Acute infarcts were visible more frequently on MR images than on CT scans (82% vs 58%). Proton density- and T2-weighted scans usually demonstrated regions of hyperintensity corresponding to acute infarcts, but proton density-weighted scans often showed better definition of the lesion in terms of regional anatomy. Follow-up MR images and CT scans identified approximately 88% of subacute strokes, 54% of which were better defined and/or larger than on the initial examination. In 20% of lesions, "hemorrhagic" characteristics were seen on at least one examination. CT and MR imaging were comparable in delineating acute hemorrhage, but MR detected more cases with evidence of hemorrhage on follow-up examinations. MR appears to be more sensitive than CT in the imaging of acute stroke.