|
FIG 1. Patient 1 was a 4-day-old neonate with a right MCA infarct, which occurred 4 days before MR imaging was performed. At 3- and 6-month clinical follow-up, the patient had clinical progression of the left hemiparesis, consistent with the evolution of Wallerian degeneration.
Far left, Transverse (top) and coronal (bottom) fast spin-echo T2-weighted images (5000/96 [TR/TE]) show abnormal signal intensity in the right corticospinal tract (arrowhead). Increased signal intensity is present in the region of the right temporal lobe subcortical white matter (black arrow, top), along with areas of decreased signal intensity in the cortical gray matter (black arrows, bottom). A focus of hemorrhage (white arrow) is seen in the corona radiata.
Middle left, Transverse (top) and coronal (bottom) DW imagess (4000/100) acquired with a spin-echo echo-planar imaging technique show increased signal intensity in the right cerebral peduncle (arrowhead) and subcortical white matter in the territorial infarct (arrow).
Middle right, Corresponding transverse (top) and coronal (bottom) ADC maps and reduced ADC in the right cerebral peduncle (arrowhead) and subcortical white matter in the territorial infarct (arrow).
Far right, Transverse DW image (top) and corresponding ADC map (bottom) show involvement of the splenium of the corpus callosum (arrowhead).
|