Prospective Study of High-penetration Super-resolution Transcranial Ultrasound for Early Identification of Postoperative Intracranial Metallic Targets After Aneurysm Clipping
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- This is an observational study: the protocol does not assign a study treatment.
- Who it may be relevant to
- Registry conditions: Intracranial Aneurysms. Basic parameters: 18 years — 85 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Center list to be confirmed — check the primary protocol.
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Unsure about the terms? Read our patient guide →
Official title
Clinical Model-Based Evaluation of High-Penetration Super-Resolution Transcranial Ultrasound for Early Diagnosis of Intracranial Metallic Foreign Bodies in Patients After Intracranial Aneurysm Clipping
Overview
To evaluate the patient-level early diagnostic performance of high-penetration super-resolution transcranial ultrasound for identifying intracranial metallic targets, and to further assess clip-level detection, localization, agreement, and its complementary value to routine postoperative imaging.This study does not alter routine clinical treatment. All participants will undergo standardized high-penetration super-resolution transcranial ultrasound within 3 hours after surgery. Postoperative CT is mandatory for all participants; CTA or other routine postoperative imaging will be obtained only when clinically indicated.
Primary outcome measures
- Patient-level sensitivity for identifying the presence or absence of intracranial metallic targets [Time frame: Within 24 hours after surgery upon completion of composite reference standard adjudication]
- Patient-level specificity for identifying the presence or absence of intracranial metallic targets [Time frame: Within 24 hours after surgery upon completion of composite reference standard adjudication]
Eligibility criteria
Inclusion criteria
- Age 18-85 years;
- Positive group: patients undergoing intracranial aneurysm clipping with implanted metallic clips; negative control group: postoperative craniotomy patients without implanted clips;
- Ability to complete transcranial ultrasound within 3 hours after surgery;
- Availability of postoperative CT;
- Written informed consent from the participant or legally authorized representative.
Exclusion criteria
- Inability to complete standardized transcranial ultrasound;
- Missing postoperative CT;
- Inability to establish the composite reference standard;
- Presence of non-study-related metallic materials that may substantially interfere with target identification;
- Withdrawal of consent;
- Investigator judgment that continued participation is inappropriate.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Study design
- Observational model
- Cohort
Study locations
Center list to be confirmed — check the primary protocol.
Identifiers
NCT: NCT07583225 · S2026-078-01