BACKGROUND AND PURPOSE: Little is known about high-signal lesions in magnetic resonance diffusion-weighted imaging (DWI [+]) after stenting for @entity4522 . This study aimed to evaluate the incidence, distribution, risk factors, and clinical implications of DWI (+) after intracranial stenting. METHODS: A total of 123 @entity1 (male:female=88:35, mean age, 64.1 years) with symptomatic @entity4522 (mean stenosis, 76.1  7.7%) underwent both stenting and poststenting DWI. The incidence, distribution (embolic-alone versus stenosis-associated perforator/mixed), and risk factors of DWI (+) and its relationship with @entity63 ( @entity63 , including @entity64 or transient @entity63 ) were retrospectively evaluated. RESULTS: Forty-three @entity1 (35.0%) had DWI (+). Middle cerebral artery, smaller distal parent artery, and treatment-related dissection were independent risk factors for DWI (+) (P<0.05). @entity63 occurred in 4 @entity1 (3.3%), all of whom had DWI (+). Of the @entity1 with DWI (+), neither the number nor the volume of DWI (+) differed significantly between @entity63 and asymptomatic @entity1 : median number/ @entity1 , 3.5 (range, 2-11) versus 2.0 (range, 1-11) and median volume/ @entity1 , 329.8 mm(3) (range, 76-883.5 mm(3)) versus 119.5 mm(3) (range, 32.5-873.0 mm(3)). However, @entity63 occurred more frequently in the stenosis-associated perforator/mixed type (3/11, 27.3%) than in the @entity887 (1/32, 3.1%; P<0.05). CONCLUSIONS: The incidence of DWI (+) after intracranial stenting for @entity4522 was 35.0%. Middle cerebral artery, smaller distal parent artery, and treatment-related dissection were independent risk factors for DWI (+). @entity63 occurred more frequently in the stenosis-associated perforator/mixed type than in the @entity887 .

Incidence and risk factors for diffusion-weighted imaging (+) lesions after intracranial stenting and its relationship with XXXX .

@entity1 :: ('9606', 'Species') :: ['patients', 'patient'] @entity64 :: ('MESH:D020521', 'Disease') :: ['stroke'] @entity63 :: ('MESH:D007511', 'Disease') :: ['symptomatic ischemic complications', 'SIC', 'ischemic attack'] @entity887 :: ('MESH:D004617', 'Disease') :: ['embolic-alone type'] @entity4522 :: ('MESH:D002537', 'Disease') :: ['intracranial atherosclerotic stenosis']
@entity63 :: (MESH:D007511,Disease) :: ['symptomatic ischemic complications']
