Abstract #3537

Pressure gradient before and after transcatheter pulmonary valve implantation for repaired tetralogy of Fallot: a new 4D flow MRI measurement

Michinobu Nagao¹, Tomohito Kogure¹, Hiroshi Hamano², Yashuhiro Goto¹, Isao Shiina¹, Kazuo Kodaira¹, Mana Kato¹, Masami Yoneyama², Akihiro Inoue¹, Atsushi Yamamoto¹, Kei Inai¹, and Shuji Sakai¹

¹Tokyo Women's Medical University, Tokyo, Japan, ²Philips Japan, Tokyo, Japan

Synopsis

Keywords: Flow, Cardiovascular

Motivation: Estimating pressure gradients due to valvular disease using 4D flow MRI in repaired TOF

Goal(s): Identify the location and extent of the pressure gradient

Approach: new 4D flow MRI software for pressure gradient measurement

Results: In right heart catheter-defined pulmonary hypertension, this software showed a right ventricular outflow tract to pulmonary artery pressure gradient.

Impact: Whereas pressure gradients used to require invasive catheterization, our method is a noninvasive test that does not use contrast media. It also has the advantage of being able to locate the site of the pressure gradient.

How to access this content:

For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.

After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.

After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.

Click here for more information on becoming a member.