Research Topics
| Masahiro YamanariSummaryAffiliation: University of Tsukuba Country: Japan Publications
| Collaborators
|
Detail Information
Publications
Full-range polarization-sensitive swept-source optical coherence tomography by simultaneous transversal and spectral modulationMasahiro Yamanari
Computational Optics Group in the University of Tsukuba, Tsukuba, Ibaraki, Japan
Opt Express 18:13964-80. 2010..4 microm in tissue. Full-range polarization-sensitive retinal images showed characteristic birefringence of fibrous tissues such as retinal nerve fiber, sclera, and lamina cribrosa...
Visualization of phase retardation of deep posterior eye by polarization-sensitive swept-source optical coherence tomography with 1-microm probeMasahiro Yamanari
Computational Optics Group in the University of Tsukuba, Tsukuba, Ibaraki, Japan
Opt Express 17:12385-96. 2009..In addition, unlike conventional OCT, our PS-SS-OCT showed polarization-insensitive intensity images, in which an artifact created by the birefringence of sclera has been successfully eliminated...- Polarization-sensitive swept-source optical coherence tomography with continuous source polarization modulationMasahiro Yamanari
Computational Optics Group in the University of Tsukuba, Tsukuba, Ibaraki, Japan
Opt Express 16:5892-906. 2008..The phase retardation image shows an additional contrast in the fibrous tissue such as the collagen fiber in the trabecular meshwork and sclera... - Phase retardation measurement of retinal nerve fiber layer by polarization-sensitive spectral-domain optical coherence tomography and scanning laser polarimetryMasahiro Yamanari
University of Tsukuba, Computational Optics Group, 1 1 1 Tennodai, Tsukuba, Ibaraki 305 8573, Japan
J Biomed Opt 13:014013. 2008..PS-SD-OCT can measure the cumulative phase retardation of RNFL as well as SLP, which will allow the evaluation of RNFL for glaucomatous eyes... - Investigation of post-glaucoma-surgery structures by three-dimensional and polarization sensitive anterior eye segment optical coherence tomographyYoshiaki Yasuno
Computational Optics Group in the University of Tsukuba, Tsukuba, Ibaraki, Japan
Opt Express 17:3980-96. 2009..Interactive 3D datasets of all cases are provided for interactive clinical review. Complex raw 3D OCT volumes are also provided as a reference dataset for the development of PS-OCT algorithms... - Tissue discrimination in anterior eye using three optical parameters obtained by polarization sensitive optical coherence tomographyArata Miyazawa
Computational Optics Group in University of Tsukuba, Ibaraki, Japan
Opt Express 17:17426-40. 2009..A marker was injected into sub-Tenon's space and the tissues that were anterior to the marker and posterior to the marker were successfully segmented by our algorithm... 
Optical rheology of porcine sclera by birefringence imagingMasahiro Yamanari
Computational Optics Group in the University of Tsukuba, Tsukuba, Japan
PLoS ONE 7:e44026. 2012..To investigate a relationship between birefringence and elasticity of porcine sclera ex vivo using polarization-sensitive optical coherence tomography (PS-OCT)...- Visualization of sub-retinal pigment epithelium morphologies of exudative macular diseases by high-penetration optical coherence tomographyYoshiaki Yasuno
Computational Optics Group, Institute of Applied Physics, University of Tsukuba, Tennodai 1 1 1, Tsukuba, Ibaraki, 305 8573, Japan
Invest Ophthalmol Vis Sci 50:405-13. 2009..To evaluate the clinical significance of the newly developed long-wavelength probe optical coherence tomography (LP-OCT) for the diagnosis of exudative macular diseases... - Dual-beam-scan Doppler optical coherence angiography for birefringence-artifact-free vasculature imagingShuichi Makita
Computational Optics Group in the University of Tsukuba, 1 1 1 Tennodai, Tsukuba, Ibaraki 305 8573, Japan
Opt Express 20:2681-92. 2012..High-speed and high-sensitivity micro-vasculature imaging involving birefringent tissues is available with polarization multiplexing DB-OCA... - Generalized Jones matrix optical coherence tomography: performance and local birefringence imagingShuichi Makita
Computational Optics Group in University of Tsukuba, Tsukuba, Ibaraki, Japan
Opt Express 18:854-76. 2010..The theoretical analysis suggests that the measurements with two orthogonal input polarization states have the lowest retardation error. Local birefringence imaging is applied to the human anterior eye chamber and skin in vivo... - Visibility of trabecular meshwork by standard and polarization-sensitive optical coherence tomographyYoshiaki Yasuno
University of Tsukuba, Computational Optics Group and Computational Optics and Ophthalmology Group, Ibaraki, Japan
J Biomed Opt 15:061705. 2010..A subsequent Wilcoxon signed-rank test reveals significantly improved visibility. PS-CAS-OCT may become a useful tool for screening angle-closure glaucoma... - Automated phase retardation oriented segmentation of chorio-scleral interface by polarization sensitive optical coherence tomographyLian Duan
Computational Optics Group, Tsukuba, Ibaraki, Japan
Opt Express 20:3353-66. 2012..Applications of this algorithm are demonstrated on in vivo posterior images acquired by a PS-OCT system with 1-μm probe... - Comprehensive in vivo micro-vascular imaging of the human eye by dual-beam-scan Doppler optical coherence angiographyShuichi Makita
Computational Optics Group in University of Tsukuba, Tsukuba, Ibaraki, Japan
Opt Express 19:1271-83. 2011..The demonstrated results show that this technique may be used for comprehensive ophthalmic angiography to evaluate the vasculature of the posterior human eye and to diagnose variety of vascular diseases... - Keratoconus diagnosis using anterior segment polarization-sensitive optical coherence tomographyShinichi Fukuda
Department of Ophthalmology, Institute of Clinical Medicine, University of Tsukuba, Ibaraki, Japan
Invest Ophthalmol Vis Sci 54:1384-91. 2013.... - Simultaneous high-resolution retinal imaging and high-penetration choroidal imaging by one-micrometer adaptive optics optical coherence tomographyKazuhiro Kurokawa
Computational Optics Group in the University of Tsukuba, Tsukuba, Ibaraki, Japan
Opt Express 18:8515-27. 2010..Simultaneous high-resolution and high-penetration choroidal imaging may be useful for microstructural investigation of photoreceptors and glaucomatous nerve-fiber abnormalities... - Polarization-sensitive optical coherence tomography of necrotizing scleritisMasahiro Miura
Department of Ophthalmology, Tokyo Medical University, Kasumigaura Hospital, Inashiki, Ibaraki, Japan
Ophthalmic Surg Lasers Imaging 40:607-10. 2009..Polarization-sensitive optical coherence tomography is useful as a contrast engine of the anterior eye segment and for the evaluation of pathological change in the sclera... - Three-dimensional anterior segment optical coherence tomography of filtering blebs after trabeculectomyMasahiro Miura
Department of Ophthalmology, Tokyo Medical University, Kasumigaura Hospital, Ibaraki, Japan
J Glaucoma 17:193-6. 2008..To evaluate trabeculectomy blebs by using 3-dimensional anterior segment optical coherence tomography (OCT)... - Anisotropic alteration of scleral birefringence to uniaxial mechanical strainSatoko Nagase
Department of Ophthalmology, Tokyo Medical University, Ibaraki Medical Center, Ami, Ibaraki, Japan Computational Optics and Ophthalmology Group, Tsukuba, Ibaraki, Japan
PLoS ONE 8:e58716. 2013..To investigate the relationship between scleral mechanical properties, its birefringence, and the anisotropy of birefringence alteration in respect of the direction of the strain by using PS-OCT... - Relationship between Changes in Crystalline Lens Shape and Axial Elongation in Young ChildrenKotaro Ishii
Department of Ophthalmology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
Invest Ophthalmol Vis Sci 54:771-7. 2013..To evaluate the relationship between changes in crystalline lens shape and axial elongation during growth in young children... - Passive component based multifunctional Jones matrix swept source optical coherence tomography for Doppler and polarization imagingYiheng Lim
Computational Optics Group, University of Tsukuba, Tsukuba, Ibaraki, Japan
Opt Lett 37:1958-60. 2012..An eighth-wave plate was measured to demonstrate the polarization detection accuracy. The optic nerve head of a retina was measured in vivo. Detailed vasculature and birefringent structures were investigated simultaneously... - Monte-Carlo-based phase retardation estimator for polarization sensitive optical coherence tomographyLian Duan
Computational Optics Group at the University of Tsukuba, Tsukuba, Ibaraki, Japan
Opt Express 19:16330-45. 2011..This method is validated both by numerical simulations and experiments. The application of this method to in vitro and in vivo biological samples is also demonstrated... - Imaging polarimetry in age-related macular degenerationMasahiro Miura
Computational Optics and Ophthalmology Group, Tokyo Medical University, Tokyo, Japan
Invest Ophthalmol Vis Sci 49:2661-7. 2008..To compare the information from two techniques--scanning laser polarimetry (GDx) and polarization-sensitive spectral-domain optical coherence tomography (OCT)--and investigate how they complement each other... - In vivo three-dimensional birefringence analysis shows collagen differences between young and old photo-aged human skinShingo Sakai
Basic Research Laboratory, Kanebo Cosmetics Inc, Kanagawa, Japan
J Invest Dermatol 128:1641-7. 2008..The maps suggested that the peripheral regions of some infundibula were surrounded by a strong collagen network. Three-dimensional analyses of dermal birefringence using PS-OCT help to quantify the diagnosis of photoaging... - Three-dimensional imaging of macular holes with high-speed optical coherence tomographyMasanori Hangai
Department of Ophthalmology and Visual Science, Kyoto University Graduate School of Medicine, Kyoto, Japan
Ophthalmology 114:763-73. 2007..To demonstrate the advantages of 3-dimensional imaging of macular hole pathology using new-generation high-speed optical coherence tomography (OCT)...