Volume 45 No 5  Cover Story

A demonstrative case of usefulness of 16-slice CT angiography with optimized sharp kernel for the assessment of intracranial stent patency and restenosis. Severe left M1 stenosis (upper left) in a 56-year-old woman is successfully dilated after implantation of balloon expandable coronary stent (upper right and lower left). Curved axial multiplanar reconstruction with optimized sharp kernel (lower right) shows about 57% lumen visibility on the left M1.