A sharper CT scan could replace invasive stent checks

NCT ID NCT07769814

NEW Recruiting now Diagnosis Sponsor: Xin Lou Source: ClinicalTrials.gov ↗

First seen Aug 18, 2026 · Last updated Aug 18, 2026

Summary

This study tests whether an ultra-high-resolution CT scan, called photon-counting CT angiography, can accurately detect narrowing inside brain stents. The trial involves 200 adults who have had a stent placed in a brain artery and are due for a follow-up check. The new CT scan's results will be compared against the standard invasive angiogram (DSA) to see if it can reliably spot significant blockages, potentially offering a safer, less invasive way to monitor stent health.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: Ultra-high-resolution photon-counting detector CT angiography (UHR PCD-CTA)
What this could lead to: If successful, this could provide a safer, non-invasive alternative to DSA for monitoring stent patency in patients with intracranial atherosclerosis, reducing the need for invasive procedures.
What could go wrong: The study is relatively small and early, and the accuracy of the new CT technique may not match DSA in all cases. There is also a risk of radiation exposure from the CT scan, though likely lower than DSA.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for INTRACRANIAL ARTERIAL STENOSIS are added.

Our safety recommendation!

By submitting, you agree to our Terms of use

Conditions

The condition(s) this trial relates to.

cerebral artery stenosis coronary restenosis intracranial arterial disease ischemic stroke

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

INTRACRANIAL ARTERIAL STENOSIS INTRACRANIAL ATHEROSCLEROTIC DISEASE (ICAD) ISCHEMIC STROKE STENT RESTENOSIS

Contacts and locations

Locations

Chinese PLA General Hospital
RECRUITING

Beijing, Beijing Municipality, 100853, China

More trials for these conditions

Other studies related to the condition(s) this trial covers.