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

ConditionsIntracranial Stenosis Venous Sinus Stenosis Stent Implantation Intracranial Venous Pressures Intracranial Venous Sinus Stenosis

Trial statusRecruiting

Trial phaseNot listed

Trial typeObservational

Biological sexAll

Age18-90

SponsorXin Lou

About this trial

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 criteria

Qualifiers

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.

Disqualifiers

Severe motion artifacts affecting image interpretation.

Contraindication to iodinated contrast media.

Severe renal impairment preventing contrast-enhanced CT examination.

Incomplete imaging data.

Trial design

Treatments tested in this trial

Not listed

Trial groups

200 Participants

are grouped into 1 trial group

Sponsors and collaborators

Xin Lou

Lead sponsor

Chinese PLA General Hospital

Sponsor institution

Source ClinicalTrials.gov