MRI and Computational Simulation Cardiology Study

Pulmonary Hypertension Clinical Trial

Official title:

MR Imaging and Computational Simulation of Cardiovascular Physiology Including Velocity, Pressure, and Wall Shear Stress

Clinical Trial Details — Status: Enrolling by invitation

Administrative data

• NCT number: NCT03149341
• Other study ID #: SQL 80004
• Status: Enrolling by invitation
• Start date: February 2008
• Est. completion date: February 2025

Study information

• Verified date: September 2021
• Source: Stanford University
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

The purpose of this study is to (1) quantify cardiovascular anatomy and physiology using magnetic resonance imaging under both resting and exercise conditions in patients who have congenital heart disease and in age-matched normal volunteers, (2) use computer models to reproduce and simulate blood flow in these patients, and then (3) to combine the imaging data and computer models to estimate values which cannot be directly measured and to predict physiological changes induced by exercise and medical or surgical therapies.

Description:

Investigators hope to gain a greater understanding of the hemodynamics of congenital heart disease and their associated operations as they pertain to real-life situations (i.e. upright and non-sedentary, rest and exercise). With this knowledge, investigators would look to optimize the geometry and physiology of the patients, potentially reducing several of the long-term complications found in congenital heart disease patients such as cardiomyopathy, pulmonary hypertension, arrhythmias, thrombosis and heart failure.

Recruitment information / eligibility

• Status: Enrolling by invitation
• Enrollment: 75
• Est. completion date: February 2025
• Est. primary completion date: January 2025
• Accepts healthy volunteers: No
• Gender: All
• Age group: N/A and older

Eligibility

Inclusion Criteria:

• patients will have congenital heart disease or acquired cardiopulmonary disease.

• normal volunteers will be willing to undergo MRI

Exclusion Criteria:

• patients unable to receive intravenous contrast material (this does not apply to normal volunteers)

• subjects with arrhythmias which will prevent MRI cardiac gating

• subjects with illnesses which make participation inappropriate. In addition, patients who would normally be excluded from an MRI study because of pacemaker implant, aneurysm clip, severe claustrophobia, or any other condition which, based on the Investigator's judgment, would preclude proximity to a strong magnetic field will be excluded from this study as well.

• NORMAL VOLUNTEERS may be excluded if they are not able to remain still during the exam or follow the instructions of the investigators.

Related Conditions & MeSH terms

• Congenital Heart Disease
• Heart Defects, Congenital
• Heart Diseases
• Hypertension, Pulmonary
• Pulmonary Hypertension

Intervention

Other:
• Magnetic Resonance Imaging
All subjects will undergo or have already undergone Magnetic Resonance Imaging. Normal volunteers will be used for comparison with subjects. To minimize risk, normal volunteers will NOT undergo anesthesia, sedation or receive intravenous contrast during procedure.

Locations

Country	Name	City	State
United States	Lucile Packard Children's Hospital at Stanford	Palo Alto	California

Sponsors (1)

Lead Sponsor	Collaborator
Stanford University

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Wall Shear Stress	Computational parameters derived from clinical diagnostic modalities	20 years