1. Vedran Kajic

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    1. Mentioned In 11 Articles

    2. Non-Invasive Detection of Early Retinal Neuronal Degeneration by Ultrahigh Resolution Optical Coherence Tomography

      Non-Invasive Detection of Early Retinal Neuronal Degeneration by Ultrahigh Resolution Optical Coherence Tomography
      Optical coherence tomography (OCT) has revolutionises the diagnosis of retinal disease based on the detection of microscopic rather than subcellular changes in retinal anatomy. However, currently the technique is limited to the detection of microscopic rather than subcellular changes in retinal anatomy. However, coherence based imaging is extremely sensitive to both changes in optical contrast and cellular events at the micrometer scale, and can generate subtle changes in the spectral ...
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    3. Choroidal Thinning in Diabetes Type 1 Detected by 3-Dimensional 1060 nm Optical Coherence Tomography

      Choroidal Thinning in Diabetes Type 1 Detected by 3-Dimensional 1060 nm Optical Coherence Tomography
      Purpose. To map choroidal (ChT) and retinal thickness (RT) in patients with diabetes type 1 with and without maculopathy and retinopathy in order to compare them with healthy subjects using high speed 3-dimensional (3D) 1060 nm optical coherence tomography (OCT). Methods. Thirty-three eyes from 33 diabetes type 1 subjects (23–57 years, 15 male) divided into groups of without pathology (NDR) and with pathology (DR; including microaneurysms, exudates, clinically significant ...
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    4. Mapping Choroidal and Retinal Thickness Variation in Type 2 Diabetes using Three-Dimensional 1060-nm Optical Coherence Tomography

      Mapping Choroidal and Retinal Thickness Variation in Type 2 Diabetes using Three-Dimensional 1060-nm Optical Coherence Tomography
      ...erence Tomography 1. Marieh Esmaeelpour^1,^2,^3, 2. Boris Považay^3, 3. Boris Hermann^3, 4. Bernd Hofer^3, 5. Vedran Kajic^1, 6. Sarah L. Hale^4, 7. Rachel V. North^1, 8. Wolfgang Drexler^3 and 9. Nik J. L. Sheen^1 1. Fr...
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    5. Artefact reduction for cell migration visualization using spectral domain optical coherence tomography

      Artefact reduction for cell migration visualization using spectral domain optical coherence tomography
      Visualization of cell migration during chemotaxis using spectral domain optical coherence tomography (OCT) requires non-standard processing techniques. Stripe artefacts and camera noise floor present in OCT data prevent detailed computer-assisted reconstruction and quantification of cell locomotion. Furthermore, imaging artefacts lead to unreliable results in automated texture based cell analysis. Here we characterize three pronounced artefacts that become visible when imaging sample structures with high dynamic range, e.g. cultured cells ...
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    6. Three-Dimensional 1060-nm OCT: Choroidal Thickness Maps in Normal Subjects and Improved Posterior Segment Visualization in Cataract Patients

      Three-Dimensional 1060-nm OCT: Choroidal Thickness Maps in Normal Subjects and Improved Posterior Segment Visualization in Cataract Patients
      ...ation in Cataract Patients Marieh Esmaeelpour,^1 Boris Pova z ay,^1^,2 Boris Hermann,^1^,2 Bernd Hofer,^1^,2 Vedran Kajic,^1 Ketan Kapoor,^1 Nik J. L. Sheen,^1 Rachel V. North,^1 and Wolfgang Drexler^1^,2 ^From the ^1Sc...
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    7. Robust segmentation of intraretinal layers in the normal human fovea using a novel statistical model based on texture and shape analysis

      Robust segmentation of intraretinal layers in the normal human fovea using a novel statistical model based on texture and shape analysis
      A novel statistical model based on texture and shape for fully automatic intraretinal layer segmentation of normal retinal tomograms obtained by a commercial 800nm optical coherence tomography (OCT) system is developed. While existing algorithms often fail dramatically due to strong speckle noise, non-optimal imaging conditions, shadows and other artefacts, the novel algorithm’s accuracy only slowly deteriorates when progressively increasing segmentation task difficulty. Evaluation against a large set of manual ...
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    8. Three-dimensional 1060nm OCT: Choroidal thickness maps in normals and improved posterior segment visualization in cataract patients

      Three-dimensional 1060nm OCT: Choroidal thickness maps in normals and improved posterior segment visualization in cataract patients
      ...t visualization in cataract patients Marieh Esmaeelpour,^1 Boris Pova z ay,^2 Boris Hermann,^3 Bernd Hofer,^4 Vedran Kajic,^5 Ketan Kapoor,^6 Nik Sheen,^7 Rachel V North,^8 and Wolfgang Drexler^9 ^^1School of Optometry a...
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    9. Wide-Field Optical Coherence Tomography of the Choroid In Vivo

      PURPOSE. To demonstrate high-speed, high axial resolution optical coherence tomography (OCT) at 1060 nm with penetration to the sclera. The clinical feasibility of dense, high-speed sampling for higher levels of detail at the macula and optic nerve head is explored with respect to motion artifacts. METHODS. A three-dimensional (3D) OCT system making use of a high-speed camera operating at 47,000 depth scans/s was developed. The 1010- to 1080-nm ...
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    10. High-speed high-resolution optical coherence tomography at 800 and 1060 nm

      Two high speed systems for spectrometer based frequency domain optical coherence tomography are presented. A device operating at 800 nm, based on the Basler Sprint CMOS camera with linerates of up to 312,000 lps and a device based on the Goodrich SUI LHD 1024 px camera at 1060 nm with 47,000 lps are applied in a clinical environment to normal subjects. The feasibility of clinical high and ultra ...
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  2. About Vedran Kajic

    Vedran Kajic is from the School of Optometry and Vision Sciences at Cardiff University in the United Kingdom.