Philips Healthcare introduced its Achieva 3T TX MRI at the RSNA conference last week—a scanner that projects multiple radiofrequency (RF) transmit signals.
By using multiple RF sources, local RF deposition can be reduced to enable a gain in speed, according to the company. Its new MultiTransmit technology can be individually tuned to each patient’s anatomy, thereby addressing dielectric shading at the source.
Ir. Maurits B. Wolleswinkel, MD, senior director of global marketing of MRI systems at Philips, explained to Health Imaging News that shading effects can be mild to severe based on the anatomy of the patient.
“MultiTransmit technology uses several transmitters, as opposed to a single transmitter, which reduces the shading, by coming from multiple directions,” Wolleswinkel said. “This results in homogenous images without artifacts because the RF signal is nicely disseminated and the scanner is able to obtain images 40 percent faster.”
By using multiple RF sources, Philips said that local specific absorption rate can be reached to enable a gain in speed.
He also mentioned that it was “a superior tool for breast imaging,” especially with MammoTrak and SmartExam. MammoTrak provides over-the-table dockable patient support and on-console breast biopsy planning, while SmartExam controls the planning, scanning and processing of MRI scans with one click.