Abstract #2802

Novel ASL-based flow imaging for cardiovascular hemodynamics and valvular function visualization: comparison with a feasibility study

Yasuhiro Goto¹, Michinobu Nagao², Kenji Fukushima², Masami Yoneyama³, Hitoshi Tadenuma¹, Mamoru Takeyama¹, and Shuji Sakai²

¹Department of Radiological services, Tokyo Women’s Medical University Hospital, Tokyo, Japan, ²Department of Diagnostic Imaging & Nuclear Medicine, Tokyo Women’s Medical University Hospital, Tokyo, Japan, ³Philips Electronics Japan, Tokyo, Japan

We developed a novel ASL-based flow imaging (ASL-Flow) with modified flow-sensitive alternating inversion recovery technique and Look-Locker sequence to evaluate cardiovascular hemodynamics and valvular dysfunction. We validate that time-intensity curves of pulmonary artery form ASL-Flow matches for time-velocity curves from 2D phase-contrast MRI. ASL-Flow can visualize more clearly regurgitateion and stenotic jet in valvular diseases than standard cine imaging. The scan time for ASL-Flow is short (15 seconds/slice), and the image reconstruction needs no special software; therefore, this is easy to clinically use. We promise that ASL-Flow is a feasible non-contrast imaging to detect hemodynamics abnormality in structural heart disease.

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.