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

University of California San Francisco (UCSF)

Status

Completed

Conditions

Healthy

Study type

Observational

Funder types

Other

Identifiers

NCT00722904

H627-30777

H627-30777-01A

Details and patient eligibility

About

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.

Enrollment

40 estimated patients

Sex

All

Ages

1+ year old

Volunteers

Accepts Healthy Volunteers

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.