Contrast-free Magnetic Resonance Angiography (MRA) at 3.0 T for Intracranial Aneurysm Detection

• Conditions: Intracranial Aneurysms
• Interventions: Other: Examination

• Registration Number: NCT01031147
• Lead Sponsor: Shanghai Jiao Tong University School of Medicine

Brief Summary

The Chinese Cerebral Aneurysms Survey is a continuing prospective study to evaluate the effectiveness of unenhanced, three-dimensional time-of-flight magnetic resonance angiography (3D-TOF-MRA) with volume rendering (VR) at 3-T in the detection of intracranial aneurysms.

Detailed Description

Recent years,three-dimensional time-of-flight MRA (3D-TOF-MRA) has become a useful, contrast-free method for observing intracranial vessels and is widely utilized as a screening examination for intracranial aneurysms. The studies available in Medline show mixed results.Some of these studies just included MRI/MRA in the analysis, which have a high rate of false-positives and are unreliable, and some were lack of control (ruptured aneurysm), precise numbers of false-positive results, standard images process and review, or corroborative IADSA in some patients. Furthermore, most previous studies included small sample size with aneurysm detection at 0.5-T or 1.5-T MR. Thus, these results have been inconclusive because of certain pitfalls in these studies.

Since 2007, we have conducted a clinical study to objective detection of intracranial aneurysms in our routine diagnostic work-up of intracranial aneurysms by our neuroradiologists using a standard procedure with 3D-TOF-MRA with VR at 3T. The investigators want to establish the quality data to prospectively compare 3D-TOF-MRA with VR at 3T vs 3D-RDSA in the diagnosis of intracranial aneurysms in a largest cohort of patients and test it accuracy in screening for suspected patients

Study Timeline

• Study Start: 2007-06
• Primary Completion: 2008-12
• Status Verified: 2009-12
• Study First Submitted: 2009-12-11
• Study First Submitted QC: 2009-12-11
• Study First Posted: 2009-12-14
• Last Update Submitted: 2010-02-25
• Last Update Posted: 2010-02-26
• Study Completion: 2010-12

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 350

Inclusion Criteria

• Suspected or known intracranial aneurysms

Exclusion Criteria

• Patient's inability to cooperate
• Chronic renal failure patients
• Any patients with a contraindication to MRA examination, such as pacemaker, orbital metallic foreign body, coronary stent, etc.
• Any patients with a contraindication to DSA examination, such as allergic to contrast medium, etc.

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Magnetic resonance angiography	Examination	Three-dimensional time-of-flight magnetic resonance angiography(3D-TOF-MRA) was used to detect the intracranial aneurysms in this study

Trial Locations

Locations (1)

The Sixth Affiliated People's Hospital, Shanghai Jiao Tong University; 🇨🇳 Shanghai, Shanghai, China