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

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified December 2009 by Shanghai Jiao Tong University School of Medicine.
Recruitment status was:  Recruiting
Information provided by:
Shanghai Jiao Tong University School of Medicine Identifier:
First received: December 11, 2009
Last updated: February 25, 2010
Last verified: December 2009
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.

Condition Intervention
Intracranial Aneurysms Other: Examination

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: Detection of Intracranial Aneurysm With Non-enhanced, Three-dimensional Time-of-flight Magnetic Resonance Angiography(3D−TOF−MRA): a Prospective Comparison With Three-dimensional Reconstructed Digital Subtraction Angiography (3D RDSA)

Resource links provided by NLM:

Further study details as provided by Shanghai Jiao Tong University School of Medicine:

Estimated Enrollment: 350
Study Start Date: June 2007
Estimated Study Completion Date: December 2010
Primary Completion Date: December 2008 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
Magnetic resonance angiography
Three-dimensional time-of-flight magnetic resonance angiography(3D−TOF−MRA) was used to detect the intracranial aneurysms in this study
Other: Examination
3D−TOF−MRA was performed for suspected patients to detect intracranial aneurysm, and subsequently underwent digital subtraction angiography
Other Name: 3D−TOF−MRA

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


Ages Eligible for Study:   15 Years to 80 Years   (Child, Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
We estimated that a sample of 350 patients including 12% dropout rate would be enrolled to determine an accuracy of VR 3D-TOF-MRA versus VR RDSA as reference standard with a 95% confidence interval of 5% (i.e., a standard error of approximately 2.5 %) above and below the expected VR 3D-TOF-MRA accuracy of 95%. A P value of 0.05 was considered to indicate statistical significance.

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.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01031147

Contact: Yong-Dong Li, MD, Ph.D. 0086-21-64844183
Contact: Minh-Hua Li, MD, Ph.D. 0086-21-64844183

China, Shanghai
The Sixth Affiliated People's Hospital, Shanghai Jiao Tong University Recruiting
Shanghai, Shanghai, China, 200233
Contact: Yong-Dong Li, MD, Ph.D.    0086-21-64844183   
Contact: Ming-Hua Li, MD, Ph.D.    0086-21-64844183   
Principal Investigator: Ming-Hua Li, MD, Ph.D.         
Principal Investigator: Yong-Dong Li, MD, Ph.D.         
Sub-Investigator: Hua-Qiao Tan, MD, Ph.D.         
Sub-Investigator: Shi-Wen Chen, MD, Ph.D.         
Sub-Investigator: Yuan-Chang Chen, MD.         
Sub-Investigator: Chun Fang, MD.         
Sub-Investigator: Jia-Ying Zhang, MD.         
Sub-Investigator: Ding-Jun Hu, MD.         
Sub-Investigator: Qing Wu, MD.         
Sub-Investigator: Wu Wang, MD.         
Sponsors and Collaborators
Shanghai Jiao Tong University School of Medicine
  More Information

Responsible Party: Cerebral aneurysm study in China, The Sixth Affiliated People's Hospital, Shanghai Jiao Tong University Identifier: NCT01031147     History of Changes
Other Study ID Numbers: CASC3
Study First Received: December 11, 2009
Last Updated: February 25, 2010

Keywords provided by Shanghai Jiao Tong University School of Medicine:
Magnetic resonance angiography
Intracranial aneurysm
Digital subtraction angiography
Volume rendering

Additional relevant MeSH terms:
Intracranial Aneurysm
Vascular Diseases
Cardiovascular Diseases
Intracranial Arterial Diseases
Cerebrovascular Disorders
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases processed this record on September 19, 2017