1. Henning Wisweh

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    1. Mentioned In 17 Articles

    2. Process for optical coherence tomography and apparatus for optical coherence tomography

      Process for optical coherence tomography and apparatus for optical coherence tomography
      In a process for optical coherence tomography a plurality of first OCT slice images, in each first slice image representing a different slice of an object, are recorded. Subsequently a reference figure that is representative of the three-dimensional contour of at least one structural feature of the object in a given three-dimensional coordinate system is ascertained by feature recognition of the at least one structural feature in the first slice ...
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    3. Optical coherence tomography technique

      Optical coherence tomography technique
      An optical coherence tomography device comprises a light generator, a dispersive medium, an optical coupler and a detector. The light generator is adapted to generate a series of input pulses of coherent light, each input pulse having an input pulse width. The dispersive medium has an input that is optically coupled to the light generator and an output for output pulses. The dispersive medium is adapted to stretch the input ...
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      Mentions: Henning Wisweh
    4. Imaging technique for optical coherence tomography

      Imaging technique for optical coherence tomography
      A technique for optical coherence tomography is provided. As to a device aspect of the technique, an imaging device comprises a base defining a rotation axis, a scanning and focusing assembly mounted to the base for rotation about the rotation axis, and a drive unit for rotationally driving the scanning and focusing assembly about the rotation axis. The scanning and focusing assembly includes a focusing device for focusing a beam ...
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    5. Device for optical coherence tomography

      Device for optical coherence tomography
      In certain embodiments, a device for optical coherence tomography (OCT) includes a signal detection device and a computer arrangement. The signal detection device is designed to detect an interference signal (G(.omega.)) for an object to be imaged in an optical frequency range (.omega.). The computer arrangement is designed to determine intermediate signals (G1(k), G2(k)) in a spatial frequency range (k) from the intermediate interference signal (G(.omega ...
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    6. Imaging Technique For Optical Coherence Tomography

      Imaging Technique For Optical Coherence Tomography
      A technique for optical coherence tomography is provided. As to a device aspect of the technique, an imaging device 28 comprises a base 30 defining a rotation axis 32, a scanning and focusing assembly 34 mounted to the base 30 for rotation about the rotation axis 32, and a drive unit 50 for rotationally driving the scanning and focusing assembly 34 about the rotation axis 32. The scanning and focusing ...
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    7. Process For Optical Coherence Tomography And Apparatus For Optical Coherence Tomography

      Process For Optical Coherence Tomography And Apparatus For Optical Coherence Tomography
      In a process for optical coherence tomography a plurality of first OCT slice images (34), each first slice image representing a different slice of an object (12), are recorded. Subsequently a reference figure (44) that is representative of the three-dimensional contour of at least one structural feature (36) of the object (12) in a given three-dimensional coordinate system x, y, z is ascertained by feature recognition of the at least ...
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    8. Focusing Lens And System For Optical Coherence Tomography

      Focusing Lens And System For Optical Coherence Tomography
      A focusing lens 26 exhibits such imaging properties that a ray bundle 22a, 22b incident on the object side is focused on the image side to a focus 58a, 58b in such a manner that a principal ray 56a, 56b of the ray bundle 22a, 22b runs on the image side parallel to an optical axis 40 of the focusing lens 26 and with a lateral spacing A from the ...
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    9. Optical Coherence Tomography Technique

      Optical Coherence Tomography Technique
      A technique for optical coherence tomography is provided. As to a device aspect of the technique, a device (100b) comprises a light generator (110), a dispersive medium (120), an optical coupler (130) and a detector (140). The light generator is adapted to generate a series of input pulses (202, 204, 206) of coherent light, each input pulse of the series having an input pulse width (0). The dispersive medium has ...
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      Mentions: Henning Wisweh
    10. Morphologic Classification of Reinke's Edema through Optical Coherence Tomography

      OBJECTIVE: Several classification systems for Reinke's edema have been proposed in the past, which are somewhat less than morphologically ideal. The objective of the present study is to evaluate the ability of optical coherence tomography (OCT) to attain a reproducible graduation of Reinke's edema. MATERIAL AND METHODS: In a prospective study, 30 consecutive patients underwent endolaryngeal, microsurgical resection of their Reinke's edema. Graduation was performed through OCT ...
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    11. A laryngoscope for office-based imaging of human vocal folds using OCT

      We developed a laryngoscope with an integrated OCT beam path for office-based non-contact imaging of human vocal folds. In combination with conventional videolaryngoscopy superficial and subsurface lesions can be detected. For error-free interpretation of OCT images obtained in office-based examination motion artifacts have to be considered. To demonstrate the implications on OCT images we simulated probe and patient movements for different commercial systems representing the three OCT modalities and analyzed ...
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    12. Optical coherence tomography: Significance of a new method for assessing unclear laryngeal pathologies

      (Article in German) Background Optical coherence tomography (OCT) is a new imaging technology of as yet unknown significance in laryngology. The objective of this study was to evaluate the ability of this noninvasive method to reliably predict diagnosis and possible malignancy in laryngeal disease. Patients and methods In a prospective study, a total of 225 laryngeal lesions in 201 consecutive patients were examined during elective microlaryngoscopy. Clinical assessment under the ...
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    13. Clinical value of optical coherence tomography in laryngology

      Background. Optical coherence tomography (OCT) is a new, noninvasive imaging technology for the evaluation of superficial lesions. The objective of this study is to evaluate microlaryngoscopy in combination with OCT compared with microlaryngoscopy alone (ie, without OCT) in supplying a specific diagnosis, predicting invasive tumor growth and epithelial dysplasia in the larynx. Methods. This was a prospective study including 217 laryngeal lesions in a total of 193 patients undergoing surgery ...
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    14. Significance of optical coherence tomography in the assessment of laryngeal lesions

      Optical coherence tomography (OCT) is a new promising imaging modality in laryngology as yet of undetermined value. The objective of the present study was to evaluate the ability of this noninvasive method to make a reliable prediction of diagnosis in laryngeal disease. In a prospective study, 225 b ... [Proc. SPIE Int. Soc. Opt. Eng. 6842, 68421O (2008)] published Fri Feb 8, 2008.
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  2. About Henning Wisweh

    Henning Wisweh

    Henning Wisweh is a staff member in the Biomedical Optics Department at the Laser Zentrum Hannover e.V. which is associated with the University of Hannover.