RAPID ASPECTS automatically indentifies and scores regions with early ischemic changes.


RAPID ASPECTS CE Marked 2017


RAPID ASPECTS (based on the Alberta Stroke Program Early CT Scoring system) provides an automatically generated measure of early ischemic change on Non-Contrast CT (NCCT) scans, which predicts irreversible tissue injury.

RAPID ASPECTS receives data from standard CT scanners, removes bone structures for easy visualization of the brain, tilt-corrects the images and identifies the ASPECTS regions. A classification system, based on validated machine learning algorithms, identifies regions of asymmetry.

ASPECT scores have been used to triage patients with large artery occlusions into some endovascular therapy studies and are part of the American Heart Association guidelines for use of endovascular therapy in patients who can be treated within 6 hours of symptom onset. Specifically, thrombectomy is not recommended for patients with ASPECTS ≤ 5. One of the limitations of ASPECTS is that only fair to moderate inter-rater agreement between stroke imaging experts has been achieved in most studies.

RAPID ASPECTS automates and standardizes this process to assist clinicians who are assessing early signs of brain ischemia.


Introducing RAPID ASPECTS

Learn how the fully automated RAPID ASPECTS assists clinicians in assessing early signs of brain ischemia.

RAPID ASPECTS provides fast and simple windowing.


RAPID ASPECTS CE Marked 2017

Using the slice up and down, zoom and windowing features, the clinician can evaluate regions of interest. Windowing is performed by clicking the WL/WW circles, which provide 2 default options (40/80 and 35/35). Alternatively, any desired window setting can be achieved by using the mouse (31/39 is shown above).

Manually adding or subtracting regions can adjust the score. This can be accomplished by either clicking directly on the brain regions, or the respective region on the table. You can return to the fully automated score by clicking the “restore ROIs” button, which appears if any manual adjustments are made.

In addition to the slice up and down and zoom features, the clinician can easily evaluate regions of interest by adjusting the contrast and brightness of the image using the windowing buttons (WL/WW), which provide 2 default options (40/80 and 35/35). Alternatively, any desired window setting can be achieved manually by using the mouse/cursor. Pressing Reset View restores the image to its original setting.

RAPID ASPECTS provides easy score adjustment.


RAPID ASPECTS CE Marked 2017

With the assistance of the confidence indicator, the physician can scrutinize suspicious regions and determine a final score. For example, in this case the automated RAPID CT classifier identified 2 regions as potentially abnormal (caudate and internal capsule). Moving the confidence slider to the left identifies additional regions that may potentially be involved. Moving the slider to the right removes regions with more subtle differences.

The score can also be adjusted by either clicking directly on the brain regions, or the respective region on the table. You can return to the fully automated score by clicking the "restore view" button, which appears if any manual adjustments are made.

Read the Press Release >
For training videos and more information, please contact sales@irapid.com.