Table 1.

Inclusion criteria of study subjects.

Order number	Inclusion criteria
1	Compliance with diagnostic criteria of CVST in guidelines for prevention and treatment of cerebrovascular diseases in China
2	Full medical records, complete medical history
3	Clinical headache, nausea, papilledema, and other high-intracranial pressure diseases
4	Focal or comprehensive seizures
5	Consciousness disorder, limb paralysis, sensory disorder, aphasia, or neurological impairment
6	Magnetic resonance venography (MRV) imaging
7	Contrast-enhanced MR venography (CE-MRV)
8	CVST diagnosed by digital subtraction angiography (DSA)