Skip to main content

Evidence to Improve Care

Automated CT Perfusion Imaging to Aid in the Selection of Patients With Acute Ischemic Stroke for Mechanical Thrombectomy

Final Recommendation

  • Ontario Health, based on guidance from the Ontario Health Technology Advisory Committee, recommends publicly funding mechanical thrombectomy within 24 hours of acute ischemic stroke, and that automated CT perfusion imaging is an important tool to facilitate patient selection

Read the final recommendation report


A stroke happens when blood suddenly stops flowing to a part of the brain, causing damage to brain cells. Restoring blood flow within 24 hours after the stroke can reduce the damage and improve health outcomes.

For people who have an ischemic stroke (when a blood clot develops in an artery in the brain), one method to restore blood flow is to remove the clot (a procedure called mechanical thrombectomy). But this procedure may not be appropriate for everyone. To identify patients who would benefit from this procedure, hospitals use medical imaging such as MRI (magnetic resonance imaging) or CT scans (computed tomography). Although MRI is the most accurate option, it is not always available in small or rural hospitals. When MRI is not available, CT scanners can be used. Brain images acquired from CT scans can be automatically processed by computer. With automated CT perfusion imaging, the results can be reviewed and communicated quickly.

This health technology assessment looked at how effective automated CT perfusion imaging is in identifying eligible patients for mechanical thrombectomy. It also looked at the cost-effectiveness and budget impact of publicly funding automated CT perfusion imaging.

Read the full health technology assessment report for more information.

Automated CT Perfusion Imaging to Aid in the Selection of Patients With Acute Ischemic Stroke for Mechanical Thrombectomy: A Health Technology Assessment (PDF)
November 2020

Use of this site, and the interpretation of the information contained here, is subject to important terms and conditions. Use of this site and information except in accordance with these terms and conditions is expressly prohibited.

The Ministry of Health is currently reviewing this recommendation.

The Ministry of Health has provided the following response: The Ministry has a standardized process in place to review health technology assessments and funding recommendations. This takes into consideration Ministry priorities, implementation options, the need for consultation with impacted stakeholders, and funding considerations.




RECEIVE NOTIFICATION OF WHEN OUR DRAFT RECOMMENDATIONS ARE OPEN FOR FEEDBACK

Sign up for our newsletter to receive monthly notifications of when draft recommendations are open for feedback

A senior couple looking at their tablet together

Let’s make our health system healthier

Join Our Patient, Family and Public Advisors Program

Patients, families and the public are central to improving health quality.


Man smiling

Sign up for our newsletter

Are you passionate about quality health care for all Ontarians? Stay in-the-know about our newest programs, reports and news.

Health Quality Connect - Health Quality Ontario's newsletter - on an iPad and a cell phone