Cervical internal carotid artery dissecting hemorrhage: diagnosis using MR

Radiology. 1986 Jan;158(1):157-61. doi: 10.1148/radiology.158.1.3940374.

Abstract

Two men underwent high-resolution magnetic resonance (MR) imaging of the internal carotid artery (ICA) 12 and 16 days after spontaneous dissection of this vessel. One underwent follow-up MR imaging 7 weeks later. T1-weighted images were obtained in both cases, and T2-weighted images were obtained in one patient. In both cases, the MR findings corresponded to the angiographic abnormalities. On both the T1- and T2-weighted images, there was a hyperintense lesion expanding the wall and narrowing the lumen of the ICAs. Follow-up MR imaging showed complete resolution of the mural lesion. Axial images best demonstrated the anatomic and MR signal alterations. The hyperintensity of the lesion on both T1- and T2-weighted images indicated a short T1 and a long T2 as expected in a subacute hematoma. High-resolution MR imaging, therefore, can specifically demonstrate a thrombosed carotid dissection noninvasively at least as early as 12 days. The potential to diagnose carotid dissection in the acute phase using high-field-strength MR imaging and its importance for the prevention of embolic strokes are also discussed.

Publication types

  • Case Reports

MeSH terms

  • Aneurysm, Dissecting / diagnosis*
  • Aneurysm, Dissecting / diagnostic imaging
  • Carotid Artery Diseases / diagnosis*
  • Carotid Artery Diseases / diagnostic imaging
  • Carotid Artery, Internal / diagnostic imaging
  • Constriction, Pathologic
  • Hemorrhage / diagnosis*
  • Hemorrhage / diagnostic imaging
  • Humans
  • Male
  • Middle Aged
  • Neck
  • Radiography