Spectral binning for mitigation of polarization mode dispersion artifacts in catheter-based optical frequency domain imaging.
Opt Express
; 21(14): 16353-69, 2013 Jul 15.
Article
in En
| MEDLINE
| ID: mdl-23938487
ABSTRACT
Polarization mode dispersion (PMD) has been recognized as a significant barrier to sensitive and reproducible birefringence measurements with fiber-based, polarization-sensitive optical coherence tomography systems. Here, we present a signal processing strategy that reconstructs the local retardation robustly in the presence of system PMD. The algorithm uses a spectral binning approach to limit the detrimental impact of system PMD and benefits from the final averaging of the PMD-corrected retardation vectors of the spectral bins. The algorithm was validated with numerical simulations and experimental measurements of a rubber phantom. When applied to the imaging of human cadaveric coronary arteries, the algorithm was found to yield a substantial improvement in the reconstructed birefringence maps.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Algorithms
/
Catheterization
/
Image Interpretation, Computer-Assisted
/
Image Enhancement
/
Carotid Arteries
/
Artifacts
/
Tomography, Optical Coherence
Type of study:
Diagnostic_studies
Limits:
Humans
Language:
En
Journal:
Opt Express
Journal subject:
OFTALMOLOGIA
Year:
2013
Type:
Article
Affiliation country:
United States