Analysis Of Intracranial Artery Lesions Using 2-D/3D Phase Contrast MR

September 17, 2013 updated by: Lahey Clinic

Hemodynamic Analysis Of Intracranial Artery And Associated Lesions Using 2-D/3D Phase Contrast MR Angiography Focused On Wall Shear Stress Measurement

Using phase contrast MR Angiography with NOVA® Software, this study intends to identify,evaluate and map intracranial aneurysm development as well as develope a predicator for future morphological changes of aneurysms and possible risk of future rupture.

Study Overview

Status

Withdrawn

Conditions

Intervention / Treatment

Detailed Description

Hemodynamic stress toward the wall of intracranial artery with associated genuine defects of wall remodeling capacity is one of many hypotheses of subarachnoid aneurysm development. In addition, hemodynamic stress toward an aneurysm wall may play a very significant role for the rupture of an aneurysm creating acute Subarachnoid hemorrhage. We think the Wall Shear Stress (WSS) measurement toward an intracranial arterial wall and intracranial aneurysmal wall may provide valuable information for understanding of intracranial aneurysm development as well as predicting future morphological changes of aneurysm and possibly risk of future rupture. This study is significant especially in the management of unruptured subarachnoid arterial aneurysm patients and identifying patients who have higher rupture risks for active treatments such as surgical clipping or coiling to prevent unnecessary but potentially risky procedures.

Gadolinium MR Angiography with NOVA® Software will be used to measure the arterial wall shear stress (WSS) for patients with an intracranial arterial aneurysm. The aneurysm will be identified, blood flow, velocity, volume, vascular diameter and the direction of blood measurements will be taken using NOVA® Software at each point of interest. A WSS map of target intracranial artery and/or aneurysm sac will be created and matched with morphological features providing a clue to understand the the relationships between hemodynamic parameters, especially WSS and morphological changes.

Study Type

Interventional

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Massachusetts
      • Burlington, Massachusetts, United States, 01805
        • Lahey Clinic, Inc.

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Unruptured and ruptured adult (>18 years) intracranial arterial aneurysm patients

Exclusion Criteria:

  • Less than 18 years old
  • Chronic renal failure patients
  • Incompetent patient who cannot give consent for routine phase contrast MR Angiography and his/her surrogate decision maker is not available
  • Any patients with a contraindication to having a standard MRI examination, such as phase maker, orbital metallic foreign body, etc.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: 2D/3D Phase contrast MR
Radiation: Additional scan time on standard MR angiography

Procedure/Surgery: Additional 5 minutes scan time to standard MR angiography

Using the Nova® Software, an additional 5 minutes scan time will be required in order to identify aneurysm, select target artery, and complete measurements

Arms:

Other Names:
  • MRI
  • Phase contrast MR
  • 2D MR
  • 3D MR

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Identify, measure and map the Wall Shear Stress (WSS) measurements and affects in subarachnoid aneurysm developement.
Time Frame: Duration of the MRA test
Duration of the MRA test

Secondary Outcome Measures

Outcome Measure
Time Frame
Develope predictor to identify risk factors of possible future aneurysm rupture and SAH
Time Frame: Duration of MRA test
Duration of MRA test

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Lahey Clinic

Collaborators

VasSol®-Nova Software

Investigators

  • Principal Investigator: Seon Kyu Lee, M.D., Ph.D., Lahey Clinic, Inc.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

March 1, 2008

Primary Completion (Actual)

July 1, 2011

Study Completion (Actual)

December 1, 2011

Study Registration Dates

First Submitted

July 1, 2008

First Submitted That Met QC Criteria

July 1, 2008

First Posted (Estimate)

July 4, 2008

Study Record Updates

Last Update Posted (Estimate)

September 18, 2013

Last Update Submitted That Met QC Criteria

September 17, 2013

Last Verified

September 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2008-020

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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