Clinical Study

Detection of Early Ischemic Changes in Noncontrast CT Head Improved with “Stroke Windows”

Table 1

Comparison of the number of detected EICs ().

EICNumber of resident-detected EICsaNumber of staff radiologist-detected EICsbSignificance

Hyperdense MCA sign18 (36%)7 (14%)
Hyperdense basilar sign1 (2%)0 (0%)
Sulcal effacement7 (14%)0 (0%)
Basil ganglia hypodensity7 (14%)2 (4%)
Loss of grey-white differentiation10 (20%)2 (4%)

EIC detected with author-established Stroke Window settings.
EIC detected with standard windows settings.