Kazuya Okamoto1, Takafumi Ohishi2, Sojuro Kato1, Ryuichi Nanaumi3, Kenji Oyama3, and Kazuhiko Fukutani3
1Advanced MRI Development PJ Team, Canon Medical Systems Corp., Kawasaki, Japan, 2Advanced Technology Research Department, Research and Development Center, Canon Medical Systems Corp., Kawasaki, Japan, 3Medical Products Technology Development Center, R&D Headquarters, Canon Inc., Tokyo, Japan
1Advanced MRI Development PJ Team, Canon Medical Systems Corp., Kawasaki, Japan, 2Advanced Technology Research Department, Research and Development Center, Canon Medical Systems Corp., Kawasaki, Japan, 3Medical Products Technology Development Center, R&D Headquarters, Canon Inc., Tokyo, Japan
New non-contact cardiac and respiratory gating method have been
developed, which includes an antenna monitoring heart and respiration movement,
and independent triggering pulse generation unit with signal processing
software.
Figure 2:Triggering
pulse generation unit.
Figure 3: Waveforms
of ECG (blue), the antenna signals before IIR filter (orange) and the IIR
filtered antenna signals (green). The inflection points of the IIR waveform and
the R-wave in ECG are shown in green and blue circles, respectively