Their morphology is variable truly swirly (curvilinear, streaklike), rounded or branching 6. To cause to move with a twisting or whirling motion: swirled the drink with her straw. To be arranged in a spiral, whorl, or twist. that Van Gogh was using arrangement as a synonym for composition. To move with a twisting or whirling motion eddy. This can vary from isoattenuating to hypoattenuating to the adjacent brain 6. The Starry Night (Dutch: De sterrennacht) is an oil-on-canvas painting by the Dutch. The swirl sign denotes one of more areas within, or in continuity with, the hematoma that are of lower attenuation than the surrounding/adjacent clot. The swirl sign is only one or many imaging features described in an attempt to predict hematoma growth, and in many instances, these signs overlap.įor example, the black hole sign is in many respects a swirl sign that is A) encapsulated by the hematoma and B) >28 HU lower in density than the surrounding hematoma 6. In an intracerebral hemorrhage, the swirl sign is one of many predictors of hematoma expansion 5 (see intracerebral hemorrhage for further discussion). It is in some ways the corollary of the spot sign on CTA which represents the same phenomenon, but in that case, caused by extraluminal focal accumulation/pooling/extravasation of contrast 2,5. I am planning to buy a new Swirl Control Valve Control Position Sensor to solve the problem. It represents unclotted fresh blood which is of lower attenuation than the clotted blood which surrounds it 1,5,6. The swirl control solenoid is flashing a dtc of p1130. The swirl sign refers to the non-contrast CT appearance of acute extravasation of blood into a hematoma, for example an intracerebral hemorrhage, extradural hematoma or subdural hematoma.
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