Article Figures & Data
Figures
- Fig 1.
Kaplan-Meier model of stroke-free probability depicts the youngest ages of patients at which imaging demonstrated ≥1 infarct, acute or chronic. The solid line shows the estimated stroke-free probability; dashed lines, the 95% CIs; and the dotted lines, the estimated age at which 50% of children have radiographically detectable stroke.
- Fig 2.
Graphic representation of infarct distribution.
- Fig 3.
Patterns of infarction. Axial FLAIR images of 2 different patients. A, Chronic watershed (white arrows) and white matter infarcts (black arrow). B, Acute gyral infarcts (black arrows). Bright signal in the sulci indicates slow cortical collateral flow (white arrows).
- Fig 4.
Arterial calcification. CTA reformatted images of the same patient demonstrate right VA calcification (A) and ICA and external carotid artery (B) calcifications.
- Fig 5.
VA stenoses and collaterals. A, Lateral projection of a conventional angiogram demonstrates a short-segment high-grade stenosis of the distal V2 segment of the VA. B, Lateral projection of a 3D model of the cervical MRA in a different patient demonstrates a high-grade stenosis of the V2 segment of the VA (single white arrow), an enlarged deep cervical artery (double white arrows), and enlargement of the occipital artery (curved white arrow).
- Fig 6.
Collateral vessels. A, Coronal T2WI of an enlarged ASA (white arrow). B, Collapsed view of an MRA in a different patient demonstrates M1 (single black arrow) and A1 stenoses (black double arrows), internal maxillary artery collaterals (black wavy arrows), subfrontal collaterals (single white arrow), and an enlarged ASA and posterior spinal artery (white double arrows).
- Fig 7.
ICA stenosis. 3D model of the MRA of the circle of Willis demonstrates bilateral short-segment high-grade stenoses of the cavernous ICAs (white arrows).
- Fig 8.
Collateral vessels. A, Axial T2WI shows collateral vessels in the basal cistern (arrow). Source images from an MRA in a different patient demonstrate subfrontal (B) and perisplenial (C) collateral vessels (arrows.)
