Noninvasive Imaging of Intracranial Venous Sinus Stents with Ultra-High-Resolution Photon-Counting CT Angiography

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This prospective observational study compares ultra-high-resolution photon-counting CTA (UHR PCD-CTA) with conventional energy-integrating detector CTA (EID-CTA) for follow-up after intracranial venous sinus stent placement. It focuses on image quality, visualization of the stent, artifact reduction, and diagnostic accuracy in detecting restenosis or thrombosis. Adults with prior intracranial venous sinus stenting undergoing contrast-enhanced CTA are eligible, with imaging quality and data completeness required for analysis. The aim is to determine whether UHR PCD-CTA improves noninvasive assessment of stent patency and related complications.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Adults aged ≥18 years.
* History of intracranial venous sinus stent implantation.
* Undergoing follow-up contrast-enhanced CT angiography after stent -placement.
* Available clinical and imaging data.

Exclusion Criteria:

* Severe motion artifacts affecting image interpretation.
* Contraindication to iodinated contrast media.
* Severe renal impairment preventing contrast-enhanced CT examination.
* Incomplete imaging data.
* Other conditions preventing reliable assessment of the venous sinus stent.

Where it's running

• Chinese PLA General Hospital
  Beijing, Beijing Municipality, China Recruiting

Study contacts

• Study coordinator: Jinhao Lyu, MD
• Email: 330322990@qq.com
• Phone: +8615903562929

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.