Celine
Pitsaer1, Reiner Umathum1, Ann-Kathrin Homagk1,
Cengizhan Ozturk2, Michael Bock1
1Medical Physics in Radiology, German
Cancer Research Center, Heidelberg, Germany; 2Institute of
Biomedical Engineering, Bogazici University, Istanbul, Turkey
Over
the past years, the benefit of intravascular coils has been demonstrated
providing a local SNR gain in comparison with external coils. Although
matching and amplifying directly at the catheter tip could enhance signal
quality, it could not be done due to space limitations. In this work we
compared three coil concepts that bring matching and preamplifying to the
catheter tip. Despite possible limitations due to space restrictions and
artefacts from magnetic components, the results show that a significant SNR
gain of up to 3 can be achieved with local matching and pre-amplification at
the tip of the catheter.
Keywords