Study on the Accuracy of Determining the Responsible Vessel in Medium Vessel Occlusive Stroke Based on Multi-type CT Evaluation

Study on the Accuracy of Determining the Responsible Vessel in Medium Vessel Occlusive Stroke Based on Multi-type CT Evaluation

To evaluate the accuracy of diagnosing the qualifying artery in patients with medium vessel occlusion stroke based on multimodal CT

Inclusion Criteria:

• Patients with acute ischemic stroke, without restrictions on gender
• Age ≥ 18 years old
• The time from onset to treatment is within 24 hours (the onset time is defined as the "last-well-time", and the treatment plan is determined according to the patient's wishes and local clinical experience)
• Before the treatment, CT, CTA and CTP examinations were conducted, and the relevant clinical data were complete.

Exclusion Criteria:

• Patients with acute intracranial hemorrhage
• Patients whose CTP original images cannot be processed by the CTP post-processing software
• Patients for whom the DICOM format image data of CT, CTP original images and MRI images cannot be obtained, or whose image quality is poor due to various reasons