Leak Sign on Dynamic-Susceptibility-Contrast Magnetic Resonance Imaging in Acute Intracerebral Hemorrhage

  • Park, Ji Kang (Department of Radiology, Pohang Stroke and Spine Hospital) ;
  • Hong, Dae Young (Department of Neurosurgery, Pohang Stroke and Spine Hospital) ;
  • Jin, Sun Tak (Department of Neurosurgery, Pohang Stroke and Spine Hospital) ;
  • Lee, Dong-Woo (Department of Neurosurgery, Pohang Stroke and Spine Hospital) ;
  • Pyun, Hae Wook (Department of Radiology, Pohang Stroke and Spine Hospital)
  • Received : 2020.05.05
  • Accepted : 2020.06.30
  • Published : 2020.09.30


Purpose: A CT angiography spot sign (CTA-spot) is a significant predictor of the early expansion of an intracerebral hemorrhage (ICH-Ex). Dynamic-susceptibility-contrast magnetic resonance imaging (DSC-MRI) can track the real-time leaking of contrast agents. It may be able to indicate active bleeding, like a CTA-spot. Materials and Methods: From September 2014 to February 2017, we did non-contrast CT, CTA, and DSC-MRI examinations of seven patients with acute ICH. We investigated the time from symptom onset to the first contrast-enhanced imaging. We evaluated the time course of the contrast leak within the ICH at the source image of the DSC-MRI and the volume change of ICH between non-contrast CT and DSC-MRI. We compared the number of slices showing CTA-spots and DSC-MRI leaks. Results: The CTA-spot and DSC-MRI leak-sign were present in four patients, and two patients among those showed ICH-Ex. The time from the symptom onset to CTA or DSC-MRI was shorter for those with a DSC-MRI leak or CTA-spot than for three patients without either (70-130 minutes vs. 135-270 minutes). The leak-sign began earlier, lasted longer, and spread to more slices in the patients with ICH-Ex than in those without ICH-Ex. The number of slices of the DSC-MRI leak and the number of the CTA-spot were well correlated. Conclusion: DSC-MRI can demonstrate the leakage of GBCA within hyperacute ICH, showing the good contrast between hematoma and contrast. The DSC-MRI leakage sign could be related to the hematoma expansion in patients with ICH.



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