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  2. Optical coherence tomography - Wikipedia

    en.wikipedia.org/wiki/Optical_coherence_tomography

    Optical coherence tomography (OCT) is an imaging technique that uses interferometry with short-coherence-length light to obtain micrometer-level depth resolution and uses transverse scanning of the light beam to form two- and three-dimensional images from light reflected from within biological tissue or other scattering media.

  3. Optical coherence tomography angiography - Wikipedia

    en.wikipedia.org/wiki/Optical_Coherence...

    OCTA uses motion contrast between cross-sectional OCT scans (B-frames) to differentiate blood flow from static tissue, enabling imaging of vascular anatomy. [ 4 ] [ 18 ] To correct for patient movement during scanning, bulk tissue changes in the axial direction are eliminated, ensuring that all detected changes are due to red blood cell ...

  4. Endoscopic optical coherence tomography imaging - Wikipedia

    en.wikipedia.org/wiki/Endoscopic_optical...

    Endoscopic optical coherence tomography, also intravascular optical coherence tomography is a catheter-based imaging application of optical coherence tomography (OCT). [1] It is capable of acquiring high-resolution images from inside a blood vessel using optical fibers and laser technology .

  5. Dual-axis optical coherence tomography - Wikipedia

    en.wikipedia.org/wiki/Dual-Axis_Optical...

    Dual-axis optical coherence tomography (DA-OCT) is an imaging modality that is based on the principles of optical coherence tomography (OCT). These techniques are largely used for medical imaging. OCT is non-invasive and non-contact. It allows for real-time, in situ imaging and provides high image resolution.

  6. Speckle variance optical coherence tomography - Wikipedia

    en.wikipedia.org/wiki/Speckle_variance_optical...

    Optical coherence tomography is an imaging modality that uses low-coherence interferometry to obtain high resolution, depth-resolved volumetric images. OCT can be used to capture functional images of blood flow, a technique known as optical coherence tomography angiography (OCT-A). SV-OCT is one method for OCT-A that uses the variance of ...

  7. Medical optical imaging - Wikipedia

    en.wikipedia.org/wiki/Medical_optical_imaging

    Medical optical imaging is the use of light as an investigational imaging technique for medical applications, pioneered by American Physical Chemist Britton Chance. Examples include optical microscopy , spectroscopy , endoscopy , scanning laser ophthalmoscopy , laser Doppler imaging , and optical coherence tomography .

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  9. Optical tomography - Wikipedia

    en.wikipedia.org/wiki/Optical_Tomography

    Confocal diffuse tomography uses a powerful laser to illuminate a sample through a scattering medium, followed by deconvolution with a calibrated diffusion operator to estimate a volume without the effects of diffusive scattering and subsequent application of a confocal inverse filter to recover the sample image. [5] [6]