Table 2.

Agreement between CT and MRI coding for cortical, noncavitated lacunar, and cavitated lacunar lesions

	Cortical	Noncavitated lacunar	Cavitated lacunar
Perfect agreement	48	10	33
Identified as an infarct on both modalities but coded differently (territory or size)	11	2	9
Visible on both modalities but identified as an infarct on 1 only (e.g., confusion with WMH)	4	41	17
Not coded on 1 modality (below size threshold or not visible)	26	41	39
Confusion between old/acute	11	4	2
Missed (identified on review)	0	2	0

Abbreviations: CT, computed tomography; MRI, magnetic resonance imaging; WMH, white matter hyperintensity.

The frequency (expressed as percentages) of coding agreement or misclassification for cortical, noncavitated lacunar, and cavitated lacunar lesions.