Comparison of Black Hole Sign, Satellite Sign, and Iodine Sign to Predict Hematoma Expansion in Patients with Spontaneous Intracerebral Hemorrhage

Figure 3

Axial images of three different patients with spontaneous intracerebral hemorrhage. (a) Initial noncontrast computed tomography (NCCT) illustrates both black hole sign (BHS) and satellite sign (SS), with iodine concentration (IC) of 14.53 (100 μg/ml) on the iodine-based scan. Follow-up NCCT shows hematoma expansion (HE) of 10.3 ml. (b) The initial NCCT image illustrates positive BHS, with an IC of 9.84 (100 μg/ml) on the iodine-based scan. Follow-up NCCT shows HE of 12.6 ml. (c) Initial NCCT represents a positive SS, with IC of 10.17 (100 μg/ml) on the iodine-based scan. Follow-up NCCT presented with HE of 8.7 ml.