Tissue Phase Mapping Using Single Breath-hold 4D PCMR

Magnetic resonance tissue phase mapping (TPM) allows assessment of the separate directional components of wall motion. The purpose of this study was to develop a highly accelerated 4D PCMR sequence (R=8, using SENSE and UNFOLD) to acquire TPM data across the entire left ventricle, during a single breath-hold (of 16 heartbeats). Data was acquired in 5 healthy volunteers and 1 patient. Evidence of dyssynchrony in early LV diastole was seen in the patient, as well as significantly lower longitudinal velocities compared to healthy volunteers. We show that using a novel spiral UNFOLD SENSE PCMR sequence it is possible to obtain 4D TPM data in a single breath-hold.

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.