Feng Huang1, Wei Lin1, Chiel den Harder2, Clemens Bos3, George Randy Duensing1, Arne Reykowski1
1Invivo Corporation, Gainesville, FL, United States; 2Advanced Solutions, MRI, Philips Healthcare, Best, Netherlands; 3MR Clinical Science, Philips Healthcare, Best, Netherlands
Multi-channel coils have been widely used in clinical practice for larger field of view (FOV) and higher signal to noise ratio (SNR). Due to the coil geometry, different coil elements have different sensitivity to some kinds of artifacts, such as flow, pulsation, breathing, hardware imperfections, etc. Conventional artifact reduction algorithms treat all coil elements equally, which could result in lower sensitivity of motion detection, reduced SNR, or residual artifacts. In this work, it is proposed to detect and compensate artifacts for each channel individually. Examples with in-vivo data show that higher SNR and lower residual artifact level can be achieved by using a channel by channel approach than by using a combined channel approach.
Keywords