Multiple Wavelength Optical Coherence Tomography Assessments for Enhanced Ex Vivo Intra-Cochlear Microstructural Visualization

Kim, Sung-Wook; Wijesinghe, Ruchire Eranga; Lee, Jaeyul; Shirazi, Muhammad Faizan; Kim, Pilun; Jang, Jeong Hun; Jeon, Mansik; Kim, Jeehyun

doi:10.3390/electronics7080133

Cited by 3 publications

(2 citation statements)

References 52 publications

(15 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The maximum field of view of the OCT system is 10 × 10 × 3 mm. The detailed configuration of the system is reported elsewhere [48].…”

Section: System Configuration Of Ss-octmentioning

confidence: 99%

Non-Invasive Morphological Characterization of Rice Leaf Bulliform and Aerenchyma Cellular Regions Using Low Coherence Interferometry

Kim

et al. 2019

Applied Sciences

Self Cite

View full text Add to dashboard Cite

Non-invasive investigation of rice leaf specimens to characterize the morphological formation and particular structural information that is beneficial for agricultural perspective was demonstrated using a low coherence interferometric method called swept source optical coherence tomography (SS-OCT). The acquired results non-invasively revealed morphological properties of rice leaf, such as bulliform cells; aerenchyma, parenchyma, and collenchyma layer; and vascular bundle. Beside aforementioned morphologic characteristics, several leaf characteristics associated with cytological mechanisms of leaf rolling (leaf inclination) were examined for the pre-identification of inevitable necrosis and atrophy of leaf tissues by evaluating acute angle information, such as angular characteristics of the external bi-directional angles between the lower epidermis layer and lower mid-vein, and internal angle of lower mid-vein. To further assist the pre-identification, acquired cross-sections were employed to enumerate the small veins of each leaf specimen. Since mutants enlarge leaf angles due to increased cell division in the adaxial epidermis, healthy and abnormal leaf specimens were morphologically and quantitatively compared. Therefore, the results of the method can be used in agriculture, and SS-OCT shows potential as a rigorous investigation method for selecting mutant infected rice leaf specimens rapidly and non-destructively compared to destructive and time consuming gold-standard methods with a lack of precision.

show abstract

“…The maximum field of view of the OCT system is 10 × 10 × 3 mm. The detailed configuration of the system is reported elsewhere [48].…”

Section: System Configuration Of Ss-octmentioning

confidence: 99%

Non-Invasive Morphological Characterization of Rice Leaf Bulliform and Aerenchyma Cellular Regions Using Low Coherence Interferometry

Kim

et al. 2019

Applied Sciences

Self Cite

View full text Add to dashboard Cite

show abstract

“…Knowledge of the structure of the cochlea is required to obtain the information of auditory tract functioning in the norm, to investigate changes caused by different ear diseases and help to better understand the nature of hearing loss [6,7]. Imaging of cochlea's inner volume could be very important for the estimation of the cochlea volume or changes of its cavity shape due to some pathological processes caused by ear diseases [8,9].…”

Section: Introductionmentioning

confidence: 99%

Low-scattering volumes visualisation from optical coherence tomography data and its applications in otolaryngology

Moiseev¹,

Shilyagin²,

Novozhilov³

et al. 2020

Laser Phys. Lett.

View full text Add to dashboard Cite

show abstract

Quantitative spectroscopic comparison of the optical properties of mouse cochlea microstructures using optical coherence tomography at 1.06 µm and 1.3 µm wavelengths

Tsai

Chen

et al. 2021

Biomed. Opt. Express

View full text Add to dashboard Cite

Currently, the cochlear implantation procedure mainly relies on using a hand lens or surgical microscope, where the success rate and surgery time strongly depend on the surgeon’s experience. Therefore, a real-time image guidance tool may facilitate the implantation procedure. In this study, we performed a systematic and quantitative analysis on the optical characterization of ex vivo mouse cochlear samples using two swept-source optical coherence tomography (OCT) systems operating at the 1.06-µm and 1.3-µm wavelengths. The analysis results demonstrated that the 1.06-µm OCT imaging system performed better than the 1.3-µm OCT imaging system in terms of the image contrast between the cochlear conduits and the neighboring cochlear bony wall structure. However, the 1.3-µm OCT imaging system allowed for greater imaging depth of the cochlear samples because of decreased tissue scattering. In addition, we have investigated the feasibility of identifying the electrode of the cochlear implant within the ex vivo cochlear sample with the 1.06-µm OCT imaging. The study results demonstrated the potential of developing an image guidance tool for the cochlea implantation procedure as well as other otorhinolaryngology applications.

show abstract

Multiple Wavelength Optical Coherence Tomography Assessments for Enhanced Ex Vivo Intra-Cochlear Microstructural Visualization

Cited by 3 publications

References 52 publications

Non-Invasive Morphological Characterization of Rice Leaf Bulliform and Aerenchyma Cellular Regions Using Low Coherence Interferometry

Non-Invasive Morphological Characterization of Rice Leaf Bulliform and Aerenchyma Cellular Regions Using Low Coherence Interferometry

Low-scattering volumes visualisation from optical coherence tomography data and its applications in otolaryngology

Quantitative spectroscopic comparison of the optical properties of mouse cochlea microstructures using optical coherence tomography at 1.06 µm and 1.3 µm wavelengths

Contact Info

Product

Resources

About