A laparoscopic probe for magnetic sentinel node biopsy has been developed. Superparamagnetic iron oxide nanoparticles (SPIONs) are used as a tracer. They are selectively detected by Differential Magnetometry (DiffMag). Excitation and detection coils are separated. To make this possible, we developed active compensation, which removes influence of the excitation field. Separation of coils leads to improved depth sensitivity, from 20 mm with our handheld probe to 80 mm with our novel laparoscopic probe. As stated by Biot-Savart law, we win a factor distance to the third power by separating the excitation and detection part of the system.
|Publication status||Published - 18 Mar 2019|
|Event||9th International Workshop on Magnetic Particle Imaging 2019 - New York, United States|
Duration: 17 Mar 2019 → 19 Mar 2019
Conference number: 9
|Conference||9th International Workshop on Magnetic Particle Imaging 2019|
|Abbreviated title||IWMPI 2019|
|Period||17/03/19 → 19/03/19|
van de Loosdrecht, M. M., Krooshoop, H. J. G., & ten Haken, B. (2019). Improved depth sensitivity by separation of excitation and detection coils. Abstract from 9th International Workshop on Magnetic Particle Imaging 2019, New York, United States.