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

<div>An illustration of hematoma expansion predicting signs. (a) Axial noncontrast computed tomography (NCCT) illustrates black hole sign described as the hypoattenuated area encapsulated within the area of hyperattenuation, with a difference of at least 28 Hounsfield units between two densities. (b) Axial NCCT shows a satellite sign described as the presence of small hemorrhage, which is completely detached from the main hemorrhage, observed in at least a single-CT slice. (c) Axial plane on iodine-based decomposition represents an iodine sign with a tiny enhanced focus whose iodine concentration is 9.68 100 <i>μ</i>g/ml (&gt;7.82 100 <i>μ</i>g/ml).</div>

BioMed Research International

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Figure 1

Figure 1: Comparison of Black Hole Sign, Satellite Sign, and Iodine Sign to Predict Hematoma Expansion in Patients with Spontaneous Intracerebral Hemorrhage 

Figure 1 | Comparison of Black Hole Sign, Satellite Sign, and Iodine Sign to Predict Hematoma Expansion in Patients with Spontaneous Intracerebral Hemorrhage 