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

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).

NCT Number	NCT07762677
Lead Sponsor	Xin Lou
Conditions	Intracranial Stenosis, Venous Sinus Stenosis, Stent Implantation, Intracranial Venous Pressures, Intracranial Venous Sinus Stenosis
Enrollment	200 participants
Start Date	2026-01-07
Primary Completion	2029-01-07 (estimated)
Study Completion	2029-01-07 (estimated)
Updated on ClinicalTrials.gov	2026-08-13