Abstract #3850
Importance of high temporal resolution in peak flow velocity quantification by phase-contrast imaging
Yin Wu 1,2 , Ke Jiang 1,2 , Yucheng Chen 3 , Xin Liu 1,2 , and Yiu-Cho Chung 1,2
1
Paul C. Lauterbur Research Centre for
Biomedical Imaging, Shenzhen Key Laboratory for MRI,
Shenzhen Institutes of Advanced Technology, Shenzhen,
Guangdong, China,
2
Key
Laboratory of Health Informatics, Chinese Academy of
Sciences, Shenzhen, Guangdong, China,
3
Cardiology
Department, West China Hospital, Sichuan University,
Chengdu, Sichuan, China
Phase-contrast (PC) MRI is a promising tool to quantify
peak flow velocity which is essential in the diagnosis
of valvular diseases. Inconsistency between MR and echo
measurements in flow quantification has been reported,
and inadequate temporal resolution may be one
contributing factor when flow is non-turbulent. In this
study, we used an EPI-based PC sequence with a high
temporal resolution of ~20ms to quantify peak flow
velocity and compared the results with 3 traditional
FLASH-based PC techniques. Studies of 6 healthy
volunteers showed that the peak velocities measured from
the high temporal resolution EPI method were
consistently higher than other approaches, suggesting
the importance of temporal resolution on peak velocity
quantification.
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.
