Evaluation of Vascular Pathology With 3D, Time-Resolved Phase Contrast Magnetic Resonance Imaging (MRI)

October 4, 2013 updated by: University of California, San Francisco

Evaluation of Vascular Pathology With 3D, Time-Resolved Phase Contrast MRI

Aortic coarctation is a relatively common cardiovascular condition with high associated mortality if not treated. Even with successful repair, however, close follow up is needed as late complications can result in significant cardiovascular morbidity. MRI, with is ability to provide both anatomic and hemodynamic information, is becoming the imaging option of choice for post-intervention surveillance. Time-resolved, three-dimensional phase contrast magnetic resonance velocity (4D Flow) profiling enables the acquisition of multidirectional blood velocity data. The technique is well suited for evaluation of blood flow patterns in the thoracic aorta. By comparing aortic flow patterns in patients status post coarctation repair with those of healthy volunteers using 4D Flow, this study intends to characterize abnormal flow patterns in these patients with the eventual goal of better understanding and predicting late complications so that preemptive intervention may be taken.

Given the potential use of 4D Flow for evaluation of other types of vascular pathology in the aorta and other vascular regions, we hope to investigate the use of the technique on a limited basis for a broader population of adult patients. Other research groups have had success evaluating peripheral stenoses, as well as intracardiac and intracranial blood flow patterns with 4D Flow.

Study Overview

Status

Completed

Conditions

Study Type

Observational

Enrollment (Anticipated)

40

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
    • California
      • San Francisco, California, United States, 94143
        • UCSF Medical Center

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

1 year and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients: primarily status post intervention for repair of aortic coarctation and undergoing routine MRI follow up, but also adult patients with other vascular pathologies undergoing routine MRI evaluation, who may be good candidates for 4D Flow blood flow analysis.

Healthy subjects: healthy members of the radiology residency program and staff at UCSF.

Description

Inclusion Criteria:

Patients: primarily status post intervention for repair of aortic coarctation and undergoing routine MRI follow up, but also adult patients with other vascular pathologies undergoing routine MRI evaluation, who may be good candidates for 4D Flow blood flow analysis.

Healthy subjects: healthy members of the radiology residency program and staff at UCSF.

Exclusion Criteria:

Anyone else.

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

  • Observational Models: Case-Control
  • Time Perspectives: Cross-Sectional

Cohorts and Interventions

Group / Cohort
2
Healthy volunteers
1
patients undergoing routine post-intervention surveillance of aortic coarctation

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
predicting late complications in patients status post coarctation repair so that preemptive intervention may be taken
Time Frame: For at least three years following the completion of the study, the database of patients will be updated for clinically relevant information
For at least three years following the completion of the study, the database of patients will be updated for clinically relevant information

Collaborators and Investigators

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

Sponsor

University of California, San Francisco

Investigators

  • Principal Investigator: Charles B Higgins, MD, UCSF Department of Radiology

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

June 1, 2007

Primary Completion (Actual)

July 1, 2009

Study Completion (Actual)

September 1, 2010

Study Registration Dates

First Submitted

July 24, 2008

First Submitted That Met QC Criteria

July 25, 2008

First Posted (Estimate)

July 28, 2008

Study Record Updates

Last Update Posted (Estimate)

October 8, 2013

Last Update Submitted That Met QC Criteria

October 4, 2013

Last Verified

October 1, 2013

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • H627-30777
  • H627-30777-01A

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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