Bowman's topography for improved detection of early ectasia.

Abstract:

:The aim of this study was to evaluate whether OCT topography of the Bowman's layer and artificial intelligence (AI) can result in better diagnosis of forme fruste (FFKC) and clinical keratoconus (KC). Normal (n = 221), FFKC (n = 72) and KC (n = 116) corneas were included. Some of the FFKC and KC patients had the fellow eye (VAE-NT) with normal topography (n = 30). The Scheimpflug and OCT scans of the cornea were analyzed. The curvature and surface aberrations (ray tracing) of the anterior corneal surface [air-epithelium (A-E) interface in OCT] and epithelium-Bowman's layer (E-B) interface (in OCT only) were calculated. Four random forest models were constructed: (1) Scheimpflug only; (2) OCT A-E only; (3) OCT E-B only; (4) OCT A-E and E-B combined. For normal eyes, both Scheimpflug and OCT (A-E and E-B combined) performed equally in identifying these eyes (P = .23). However, OCT A-E and E-B showed that most VAE-NT eyes were topographically similar to normal eyes and did not warrant a separate classification based on topography alone. For identifying FFKC eyes, OCT A-E and E-B combined performed significantly better than Scheimpflug (P = .006). For KC eyes, both Scheimpflug and OCT performed equally (P = 1.0). Thus, OCT Topography of Bowman's layer significantly improved the detection of FFKC eyes.

journal_name

J Biophotonics

journal_title

Journal of biophotonics

authors

Chandapura R,Salomão MQ,Ambrósio R Jr,Swarup R,Shetty R,Sinha Roy A

doi

10.1002/jbio.201900126

subject

Has Abstract

pub_date

2019-10-01 00:00:00

pages

e201900126

issue

10

eissn

1864-063X

issn

1864-0648

journal_volume

12

pub_type

杂志文章
  • Measuring similarity and improving stability in biomarker identification methods applied to Fourier-transform infrared (FTIR) spectroscopy.

    abstract::FTIR spectroscopy is a powerful diagnostic tool that can also derive biochemical signatures of a wide range of cellular materials, such as cytology, histology, live cells, and biofluids. However, while classification is a well-established subject, biomarker identification lacks standards and validation of its methods....

    journal_title:Journal of biophotonics

    pub_type: 杂志文章

    doi:10.1002/jbio.201300190

    authors: Trevisan J,Park J,Angelov PP,Ahmadzai AA,Gajjar K,Scott AD,Carmichael PL,Martin FL

    更新日期:2014-04-01 00:00:00

  • Scattering based hyperspectral imaging of plasmonic nanoplate clusters towards biomedical applications.

    abstract::A new optical scattering contrast-agent based on polymer-nanoparticle encapsulated silver nanoplates (PESNs) is presented. Silver nanoplates were chosen due to the flexibility of tuning their plasmon frequencies. The polymer coating preserves their physical and optical properties and confers other advantages such as c...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章

    doi:10.1002/jbio.201500177

    authors: Ray A,Kopelman R,Chon B,Briggman K,Hwang J

    更新日期:2016-07-01 00:00:00

  • Assessment of the dynamics of human glymphatic system by near-infrared spectroscopy.

    abstract::Fluctuations in brain water content has attracted increasing interest, particularly as regards studies of the glymphatic system, which is connected with the complex organization of dural lymphatic vessels, responsible for cleaning tissue. Disturbances of glymphatic circulation are associated with several brain disorde...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章

    doi:10.1002/jbio.201700123

    authors: Myllylä T,Harju M,Korhonen V,Bykov A,Kiviniemi V,Meglinski I

    更新日期:2018-08-01 00:00:00

  • Autofocusing technologies for whole slide imaging and automated microscopy.

    abstract::Whole slide imaging (WSI) has moved digital pathology closer to diagnostic practice in recent years. Due to the inherent tissue topography variability, accurate autofocusing remains a critical challenge for WSI and automated microscopy systems. The traditional focus map surveying method is limited in its ability to ac...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章,评审

    doi:10.1002/jbio.202000227

    authors: Bian Z,Guo C,Jiang S,Zhu J,Wang R,Song P,Zhang Z,Hoshino K,Zheng G

    更新日期:2020-12-01 00:00:00

  • Confocal laser endomicroscopy in head and neck malignancies using FITC-labelled EpCAM- and EGF-R-antibodies in cell lines and tumor biopsies.

    abstract::Intraoperative detection of residual malignant cells at tumor margins following excision of primary tumors could help improving surgery and thus patients' outcome. The feasibility of the tumor antigens epidermal growth factor receptor (EGF-R) and epithelial cell adhesion molecule (EpCAM) for antibody-dependent confoca...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章

    doi:10.1002/jbio.201600238

    authors: Englhard AS,Palaras A,Volgger V,Stepp H,Mack B,Libl D,Gires O,Betz CS

    更新日期:2017-10-01 00:00:00

  • Safety and delivery efficiency of a photodynamic treatment of the lungs using indocyanine green and extracorporeal near infrared illumination.

    abstract::Photodynamic inactivation (PDI) is a promising alternative for combating infections caused by antimicrobial resistant bacteria. Pneumonias are among the most worrisome infections because of their high-mortality rate. Previous studies have demonstrated the feasibility of using PDI with extracorporeal light to treat pne...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章

    doi:10.1002/jbio.202000176

    authors: Kassab G,Cheburkanov V,Willis J,Moule MG,Kurachi C,Yakovlev V,Cirillo JD,Bagnato VS

    更新日期:2020-10-01 00:00:00

  • Modern trends in biophotonics for clinical diagnosis and therapy to solve unmet clinical needs.

    abstract::This contribution covers recent original research papers in the biophotonics field. The content is organized into main techniques such as multiphoton microscopy, Raman spectroscopy, infrared spectroscopy, optical coherence tomography and photoacoustic tomography, and their applications in the context of fluid, cell, t...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章,评审

    doi:10.1002/jbio.201600290

    authors: Krafft C

    更新日期:2016-12-01 00:00:00

  • Characterization of the optical properties of color pastes for the design of optical phantoms mimicking biological tissue.

    abstract::Clinicians need a way to rapidly and reliably test the correct functioning of near-infrared spectroscopy (NIRS)-based oximeters. Therefore, optical phantoms for quality assessment of NIRS oximeters are needed. The fabrication of such phantoms that mimic the optical properties of biological tissue in the NIR range repr...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章

    doi:10.1002/jbio.201800300

    authors: Tomm N,Ahnen L,Isler H,Kleiser S,Karen T,Ostojic D,Wolf M,Scholkmann F

    更新日期:2019-04-01 00:00:00

  • Enhanced photoinactivation of Staphylococcus aureus with nanocomposites containing plasmonic particles and hematoporphyrin.

    abstract::We fabricated composite nanoparticles consisting of a plasmonic core (gold nanorods or gold-silver nanocages) and a hematoporphyrin-doped silica shell. The dual photodynamic and photothermal activities of such nanoparticles against Staphylococcus aureus 209 P were studied and compared with the activities of reference ...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章

    doi:10.1002/jbio.201200079

    authors: Khlebtsov BN,Tuchina ES,Khanadeev VA,Panfilova EV,Petrov PO,Tuchin VV,Khlebtsov NG

    更新日期:2013-04-01 00:00:00

  • Whole-field macro- and micro-deformation characteristic of unbound water-loss in dentin hard tissue.

    abstract::High-resolution deformation measurements in a functionally graded hard tissue such as human dentin are essential to understand the unbound water-loss mediated changes and their role in its mechanical integrity. Yet a whole-field, 3-dimensional (3D) measurement and characterization of fully hydrated dentin in both macr...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章

    doi:10.1002/jbio.201700368

    authors: Chen Z,Nadeau B,Yu K,Shao X,He X,Goh MC,Kishen A

    更新日期:2018-09-01 00:00:00

  • Measurement of cartilage sub-component distributions through the surface by Raman spectroscopy-based multivariate analysis.

    abstract::Articular cartilage posesses unique material properties due to a complex depth-dependent composition of sub-components. Raman spectroscopy has proven valuable in quantifying this composition through cartilage cross-sections. However, cross-sectioning requires tissue destruction and is not practical in situ. In this wo...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章

    doi:10.1002/jbio.202000289

    authors: Mason D,Murugkar S,Speirs AD

    更新日期:2021-01-01 00:00:00

  • A helpful technology--the luminescence detection of singlet oxygen to investigate photodynamic inactivation of bacteria (PDIB).

    abstract::Photodynamic inactivation of bacteria (PDIB) is considered a new approach for the struggle against multiresistant bacteria. To achieve a sufficient level of bacteria killing, the photosensitizer must attach to and/or penetrate the bacteria and generate a sufficiently high amount of singlet oxygen. To optimize PDIB, th...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章

    doi:10.1002/jbio.200900106

    authors: Regensburger J,Maisch T,Felgenträger A,Santarelli F,Bäumler W

    更新日期:2010-06-01 00:00:00

  • Molecular changes during pollen germination can be monitored by Raman microspectroscopy.

    abstract::The processes associated with pollen germination were studied in vitro for two tree species, Salix caprea and Fraxinus excelsior under different nutrient conditions. The results provide evidence of changes in chemical composition of the pollen grains during germination. From the comparison of spectra of the pollen gra...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章

    doi:10.1002/jbio.201000031

    authors: Schulte F,Panne U,Kneipp J

    更新日期:2010-08-01 00:00:00

  • Automated quantitative analysis of multiple cardiomyocytes at the single-cell level with three-dimensional holographic imaging informatics.

    abstract::Cardiomyocytes derived from human pluripotent stem cells are a promising tool for disease modeling, drug compound testing, and cardiac toxicity screening. Bio-image segmentation is a prerequisite step in cardiomyocyte image analysis by digital holography (DH) in microscopic configuration and has provided satisfactory ...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章

    doi:10.1002/jbio.201800116

    authors: Moon I,Jaferzadeh K,Ahmadzadeh E,Javidi B

    更新日期:2018-12-01 00:00:00

  • Integrated multimodal optical microscopy for structural and functional imaging of engineered and natural skin.

    abstract::An integrated multimodal optical microscope is demonstrated for high-resolution, structural and functional imaging of engineered and natural skin. This microscope incorporates multiple imaging modalities including optical coherence (OCM), multi-photon (MPM), and fluorescence lifetime imaging microscopy (FLIM), enablin...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章

    doi:10.1002/jbio.201200003

    authors: Zhao Y,Graf BW,Chaney EJ,Mahmassani Z,Antoniadou E,Devolder R,Kong H,Boppart MD,Boppart SA

    更新日期:2012-05-01 00:00:00

  • Nanoscale distinction of membrane patches--a TERS study of Halobacterium salinarum.

    abstract::The structural organization of cellular membranes has an essential influence on their functionality. The membrane surfaces currently are considered to consist of various distinct patches, which play an important role in many processes, however, not all parameters such as size and distribution are fully determined. In ...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章

    doi:10.1002/jbio.201100131

    authors: Deckert-Gaudig T,Böhme R,Freier E,Sebesta A,Merkendorf T,Popp J,Gerwert K,Deckert V

    更新日期:2012-07-01 00:00:00

  • The microbial threat: Can rare earths help?

    abstract::Despite an ever increasing demand for reliable and cheap methods in the detection and quantification of microbes, surprisingly few investigations have explored or utilized the luminescence of rare earths in the microbial context, neither in conventional, that is, plating and microscopic imaging techniques, nor in adva...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章

    doi:10.1002/jbio.202000068

    authors: Lezhnina MM,Rochowiak W,Göhde W,Kuczius R,Kynast U

    更新日期:2020-09-01 00:00:00

  • Biophotonics in China.

    abstract::Biophotonics is a highly interdisciplinary field where physicists, chemists, biologists, physicians and engineers work together to solve the problems appearing in biology and medicine. In China, the Biophotonics discipline is often referred to as Biomedical Photonics, under the first-level disciplines Biomedical Engin...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章

    doi:10.1002/jbio.201790012

    authors: Shi H,Luo Q

    更新日期:2017-12-01 00:00:00

  • Heterodyne detected nonlinear optical imaging in a lock-in free manner.

    abstract::We report a compact, cost-effective tuned amplifier for frequency-selective amplification of the modulated signal in heterodyne detected nonlinear optical microscopy. Our method improved the signal to noise ratio by an order of magnitude compared to conventional lock-in detection, as demonstrated through stimulated Ra...

    journal_title:Journal of biophotonics

    pub_type: 社论

    doi:10.1002/jbio.201200005

    authors: Slipchenko MN,Oglesbee RA,Zhang D,Wu W,Cheng JX

    更新日期:2012-10-01 00:00:00

  • Nonlinear-optical stain-free stereoimaging of astrocytes and gliovascular interfaces.

    abstract::Methods of nonlinear optics provide a vast arsenal of tools for label-free brain imaging, offering a unique combination of chemical specificity, the ability to detect fine morphological features, and an unprecedentedly high, subdiffraction spatial resolution. While these techniques provide a rapidly growing platform f...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章

    doi:10.1002/jbio.201800432

    authors: Lanin AA,Pochechuev MS,Chebotarev AS,Kelmanson IV,Belousov VV,Zheltikov AM

    更新日期:2019-11-01 00:00:00

  • Quantitative study of optical and mechanical bone status using multispectral photoacoustics.

    abstract::Osteoporosis is a major public health problem worldwide. Here, we present a quantitative multispectral photoacoustic method for the evaluation of bone pathologies which has significant advantages over pure ultrasonic or pure optical methods as it provides both molecular information and bone mechanical status. This is ...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章

    doi:10.1002/jbio.201500206

    authors: Steinberg I,Turko N,Levi O,Gannot I,Eyal A

    更新日期:2016-09-01 00:00:00

  • Three-dimensional (3D) backward and forward second harmonic generation (SHG) microscopy of biological tissues.

    abstract::In this work we aim to show how it is possible to exploit the second harmonic generation (SHG) signal for producing multimodal microscopic images of biological tissues. SHG microscopy constitutes an important tool for high-resolution, high-contrast, three-dimensional studies of live cell and tissue architectures. The ...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章,评审

    doi:10.1002/jbio.200810060

    authors: Bianchini P,Diaspro A

    更新日期:2008-12-01 00:00:00

  • The metabolic component of cellular refractivity and its importance for optical cytometry.

    abstract::Initially, it has been shown that the phase thickness and refractivity (the latter interpreted as the difference of the refractivity indices of an object and surrounding medium) depend on the functional state of mitochondria. The refractivity of various objects decreased in response to energy depletion. This dependenc...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章

    doi:10.1002/jbio.200910042

    authors: Tychinsky V

    更新日期:2009-09-01 00:00:00

  • Use of 2D images of depth and integrated reflectivity to represent the severity of demineralization in cross-polarization optical coherence tomography.

    abstract::Several studies have demonstrated the potential of cross-polarization optical coherence tomography (CP-OCT) to quantify the severity of early caries lesions (tooth decay) on tooth surfaces. The purpose of this study is to show that 2D images of the lesion depth and the integrated reflectivity can be used to accurately...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章

    doi:10.1002/jbio.201300137

    authors: Chan KH,Chan AC,Fried WA,Simon JC,Darling CL,Fried D

    更新日期:2015-01-01 00:00:00

  • Imaging depth variations in hyperspectral imaging: Development of a method to detect tumor up to the required tumor-free margin width.

    abstract::Hyperspectral imaging is a promising technique for resection margin assessment during cancer surgery. Thereby, only a specific amount of the tissue below the resection surface, the clinically defined margin width, should be assessed. Since the imaging depth of hyperspectral imaging varies with wavelength and tissue co...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章

    doi:10.1002/jbio.201900086

    authors: Kho E,de Boer LL,Post AL,Van de Vijver KK,Jóźwiak K,Sterenborg HJCM,Ruers TJM

    更新日期:2019-11-01 00:00:00

  • Monitoring the efficacy of antimicrobial photodynamic therapy in a murine model of cutaneous leishmaniasis using L. major expressing GFP.

    abstract::A murine model of cutaneous leishmaniasis with green fluorescent protein positive (GFP+) L. major enables the monitoring of parasitic load via measurements of GFP fluorescence intensity, allowing for a faster and more efficient way of monitoring the clinical outcome of photodynamic therapy (PDT). This model may provid...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章

    doi:10.1002/jbio.201000008

    authors: Latorre-Esteves E,Akilov OE,Rai P,Beverley SM,Hasan T

    更新日期:2010-06-01 00:00:00

  • Simultaneous in vivo optical quantification of key metabolic and vascular endpoints reveals tumor metabolic diversity in murine breast tumor models.

    abstract::Therapeutically exploiting vascular and metabolic endpoints becomes critical to translational cancer studies because altered vascularity and deregulated metabolism are two important cancer hallmarks. The metabolic and vascular phenotypes of three sibling breast tumor lines with different metastatic potential are inves...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章

    doi:10.1002/jbio.201800372

    authors: Zhu C,Li M,Vincent T,Martin HL,Crouch BT,Martinez AF,Madonna MC,Palmer GM,Dewhirst MW,Ramanujam N

    更新日期:2019-04-01 00:00:00

  • Determination of the metabolic index using the fluorescence lifetime of free and bound nicotinamide adenine dinucleotide using the phasor approach.

    abstract::The fluorescence lifetime of nicotinamide adenine dinucleotide (NADH) is commonly used in conjunction with the phasor approach as a molecular biomarker to provide information on cellular metabolism of autofluorescence imaging of cells and tissue. However, in the phasor approach, the bound and free lifetime defining th...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章

    doi:10.1002/jbio.201900156

    authors: Ranjit S,Malacrida L,Stakic M,Gratton E

    更新日期:2019-11-01 00:00:00

  • Microfluidics and photonics for Bio-System-on-a-Chip: a review of advancements in technology towards a microfluidic flow cytometry chip.

    abstract::Microfluidics and photonics come together to form a field commonly referred to as 'optofluidics'. Flow cytometry provides the field with a technology base from which both microfluidic and photonic components be developed and integrated into a useful device. This article reviews some of the more recent developments to ...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章,评审

    doi:10.1002/jbio.200810018

    authors: Godin J,Chen CH,Cho SH,Qiao W,Tsai F,Lo YH

    更新日期:2008-10-01 00:00:00

  • Optical coherence elastography for tissue characterization: a review.

    abstract::Optical coherence elastography (OCE) represents the frontier of optical elasticity imaging techniques and focuses on the micro-scale assessment of tissue biomechanics in 3D that is hard to achieve with traditional elastographic methods. Benefit from the advancement of optical coherence tomography, and driven by the in...

    journal_title:Journal of biophotonics

    pub_type: 杂志文章,评审

    doi:10.1002/jbio.201400108

    authors: Wang S,Larin KV

    更新日期:2015-04-01 00:00:00