Name
Title | ||
|---|---|---|
Intensity-Modulated Microbend Fiber Optic Sensor for Respiratory Monitoring and Gating During MRI |
Abstract | ||
|---|---|---|
This paper describes a novel microbend fiber optic sensor system for respiratory monitoring and respiratory gating in the MRI environment. The system enables the noninvasive real-time monitoring and measurement of breathing rate and respiratory/body movement pattern of healthy subjects inside the MRI gantry, and has potential application in respiratory-gated image acquisition based on respiratory cues. The working principle behind this sensor is based on the microbending effect of an optical fiber on light transmission. The sensor system comprises of a 1.0-mm-thin graded-index multimode optical fiber-embedded plastic sensor mat, a photoelectronic transceiver, and a computer with a digital signal processing algorithm. In vitro testing showed that our sensor has a typical signal-to-noise ratio better than 28 dB. Clinical MRI trials conducted on 20 healthy human subjects showed good and comparable breathing rate detection (with an accuracy of ±2 bpm) and respiratory-gated image quality produced using the sensor system, with reference to current predicate hospital device/system. The MRI safe, ease of operation characteristics, low fabrication cost, and extra patient comfort offered by this system suggest its good potential in replacing predicate device/system and serve as a dual function in real-time respiratory monitoring and respiratory-gated image acquisition at the same time during MRI. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.1109/TBME.2013.2262150 | Biomedical Engineering, IEEE Transactions |
Keywords | Field | DocType |
bending,biomedical MRI,fibre optic sensors,image denoising,light transmission,microsensors,pneumodynamics,transceivers,MRI gantry,breathing rate detection,breathing rate measurement,clinical MRI trials,digital signal processing algorithm,healthy human subjects,hospital device system,in vitro testing,intensity-modulated microbend fiber optic sensor system,light transmission,low fabrication cost,microbending effect,noninvasive real-time monitoring,operation characteristics,optical fiber,photoelectronic transceiver,real-time respiratory monitoring,respiratory monitoring,respiratory-body movement pattern,respiratory-gated image acquisition,respiratory-gated image quality,sensor system,signal-noise ratio,thin graded-index multimode optical fiber-embedded plastic sensor mat,Fiber optic sensor (FOS),magnetic resonance imaging (MRI),microbending,respiratory gating,respiratory monitoring | Biomedical engineering,Optical fiber,Transceiver,Fiber optic sensor,Gating,Computer science,Image quality,Respiratory rate,Electronic engineering,Respiratory monitoring,Multi-mode optical fiber | Journal |
Volume | Issue | ISSN |
60 | 9 | 0018-9294 |
Citations | PageRank | References |
6 | 0.66 | 2 |
Authors | ||
8 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Doreen Lau | 1 | 6 | 0.66 |
| Zhihao Chen | 2 | 18 | 2.68 |
| Ju Teng Teo | 3 | 14 | 2.03 |
| Soon Huat Ng | 4 | 14 | 2.03 |
| Helmut Rumpel | 5 | 6 | 0.66 |
| Yong Lian | 6 | 6 | 0.66 |
| Hui Yang | 7 | 6 | 0.66 |
| Pin Lin Kei | 8 | 6 | 0.66 |