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This Prospective Observational Study Aims to Evaluate the Capability of Ultra-high-resolution Photon-counting CT Angiography (UHR PCD-CTA) for Noninvasive Evaluation of Intracranial Venous Sinus Stents. The Study Will Compare Image Quality, Stent Visualization, Metal-related Artifacts, and Diagnosti

NCT07762677

RecruitingN/A

Sponsor: Xin Lou

Conditions: Intracranial Stenosis, Venous Sinus Stenosis, Stent Implantation, Intracranial Venous Pressures, Intracranial Venous Sinus Stenosis

Countries: China

This prospective observational study aims to evaluate the effectiveness of ultra-high-resolution photon-counting CT angiography (UHR PCD-CTA) for noninvasive assessment of intracranial venous sinus stents. The study will compare image quality, stent visualization, metal-related artifacts, and diagnostic accuracy between PCD-CTA and conventional energy-integrating detector CT angiography (EID-CTA).

Eligibility overview

Sex: ALL

Age: 18 Years to 90 Years

Study type: OBSERVATIONAL

Eligibility criteria

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.

Locations (1)

Beijing, Beijing Municipality, China