- Poster presentation
- Open Access
MRI compatible hemodynamic recording system
© Xiao et al; licensee BioMed Central Ltd. 2013
- Published: 30 January 2013
- Pulse Oximetry
- Fiber Optic Cable
- Invasive Blood Pressure
- Cardiovascular Intervention
- SSFP Sequence
During cardiovascular interventions it is critical to have high-fidelity hemodynamic recordings of physiologic signals for patient safety and procedure guidance. MRI compatible monitoring systems are low-fidelity and not suitable for cardiovascular interventions. We present an MRI compatible hemodynamic recording system designed for MRI guided cardiovascular interventions. It is capable of recording 12-lead ECG, two invasive blood pressures, and pulse oximetry (SpO2), and interfaces to a commercial hemodynamic recording system (Siemens SENSIS).
Recordings were made during real-time multi-slice SSFP imaging (flip angle = 40°, TR = 2.9 ms). The RF and gradient artifact was suppressed in the ECG. The pressure and SpO2 signals were free from artifact. Signals were successfully recorded and archived into the commercial patient hemodynamic recording system.
The MRI compatible hemodynamic recording system was able to obtain high-fidelity signals for ECG, invasive blood pressure and SpO2 during MRI guided catheterization procedures. It maintains a straightforward design, which can be interfaced with any commercial recording system for conventional processing and archiving. This type of system will be a critical component of MRI guided cardiovascular interventions.
This work was supported by the Intramural Research Program of the National Heart, Lung, and Blood Institute.
This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.