Meeting Banner
Abstract #1176

An Open-face 8-Channel Transceive 32-Channel Receive Array for Human Visual Cortex Imaging at 7T

Son Chu1, Divya Baskaran1, Belinda Ding2, Sarah Allwood Spiers3, Yulia Lazarova4, Lucy S Petro4, Lars Muckli4, and Shajan Gunamony1,5
1Imaging Centre of Excellence, University of Glasgow, Glasgow, United Kingdom, 2Siemens Healthcare Ltd, Camberley, United Kingdom, 3MRI Physics, NHS Greater Glasgow and Clyde, Glasgow, United Kingdom, 4Centre for Cognitive Neuroimaging, University of Glasgow, Glasgow, United Kingdom, 5MR CoilTech Ltd, Glasgow, United Kingdom

Synopsis

Keywords: RF Arrays & Systems, RF Arrays & Systems

Motivation: For fMRI studies that do not require whole-brain coverage, high-spatial resolution and a large visual field can be achieved with an open-face coil design.

Goal(s): To increase image SNR for high-resolution imaging of the human visual cortex with limited receive channels .

Approach: An open-face dual-row 8-channel transceiver array in combination with a 32-channel receive array has been developed. This new hardware provides 3D RF shimming capability, SNR gain in the occipital cortex, and a large visual field.

Results: The new coil achieved a 39% SNR increase in the occipital cortex compared to the industry standard 7T whole-brain head coil.

Impact: The high gain in SNR will enable high-spatial resolution BOLD signal in the occipital cortex while simultaneously stimulating a large visual field extending far into the periphery, to perform layer-specific fMRI around the blind spot and peripheral visual fields.

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.

Keywords