XXXX Features in Hyperacute Ischemic Stroke: A Perspective on Using Length and Density Evaluation.

@entity1 @entity64 @entity731 @entity715 @entity4066
BACKGROUND: More insights in the etiopathogenesis of thrombi could be helpful in the treatment of @entity1 with @entity64 ( @entity64 ). One of the most confident and early imaging findings of @entity64 includes arterial hyperdensity. The purpose of this study was to determine whether thrombi's density and length would be useful for predicting their origin. METHODS: We evaluated 68 consecutive @entity1 with @entity64 to correlate the presence of thrombi and their imaging features with the @entity64 subtype. RESULTS: After excluding @entity1 with small-artery occlusion mechanism and undetermined and other causes, the @entity64 etiologic subtypes were large-artery @entity731 (LAA) in 59.0% of the @entity1 , cardioembolism in 31.0%, and cervical @entity4066 (CAD) in 10.0%. CAD more often caused thrombi with the longest length and highest attenuation, while thrombi that originated from the LAA had the smallest length and lowest attenuation. The mean Hounsfield unit (HU) values of all thrombi (with and without hyperdensity) on noncontrast computed tomography were 62.4 (50.0-70.0) in CAD, 53.8 (42.0-65.0) in cardioembolism, and 48.6 (27.0-65.0) in LAA. The length measurements were 28.5   mm (12.0-52.0) in CAD, 13.7   mm (5.0-31.0) in cardioembolism, and 10.8   mm (3.0-25.0) in the LAA subtype. The minimum cutoff value of 60   HU and a length greater than 20   mm were able to discriminate the CAD thrombi with an accuracy of 86.8% and 92.6%, respectively. CONCLUSION: Our study findings show how important thrombus analysis is in @entity1 with @entity64 . @entity715 analysis can allow early suspicion of CAD before dedicated imaging of the cervical arteries is performed.
