We describe a modular power (SAR) monitor for multichannel systems whereby both the forward and reverse power of each channel are sampled and averaged on a dedicated board. Each board houses an inexpensive microcontroller with built-in ADCs for sampling the output of two power detectors. The microcontroller is programmed to perform time averaging, forward-reverse power subtraction and threshold detection. Multiple boards communicate simultaneously with a graphical user interface on a host computer.
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.
Keywords