Local B1+ shimming for prostate imaging with transceiver arrays at 7T based on subject-dependent transmit phase measurements

• Published in: Magnetic resonance in medicine Vol. 59; no. 2; pp. 396 - 409
• Main Authors: Metzger, Gregory J., Snyder, Carl, Akgun, Can, Vaughan, Tommy, Ugurbil, Kamil, Van de Moortele, Pierre-Francois
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 01.02.2008
• Subjects: Adult; B1+ shimming; Equipment Design; FDTD model; Humans; Image Enhancement - methods; Image Processing, Computer-Assisted - methods; Magnetic Resonance Imaging - instrumentation; Magnetic Resonance Imaging - methods; Male; prostate; Prostate - anatomy & histology; SAR; stripline array; transceive array; transmit array

High‐quality prostate images were obtained with transceiver arrays at 7T after performing subject‐dependent local transmit B1 (B1+) shimming to minimize B1+ losses resulting from destructive interferences. B1+ shimming was performed by altering the input phase of individual RF channels based on rela...