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Glossary Term
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Optical Coherence Tomography (OCT)

Definition

Optical Coherence Tomography (OCT) is a non-invasive imaging technique used to capture high-resolution, cross-sectional images of tissue structures. It utilizes light waves to take detailed images of the internal layers of tissues, such as the retina in the eye or the coronary arteries in the heart. OCT is often compared to ultrasound imaging, but instead of sound waves, it uses infrared light to produce detailed images at a microscopic level. This technique is primarily used in ophthalmology, cardiology, and dermatology for diagnosing and monitoring various conditions.

Relevance to the MedTech Industry

OCT is used to visualize tissue structure at a microscopic level without the need for invasive procedures. In ophthalmology, it is used to examine the retina and optic nerve, allowing for early detection of diseases such as glaucoma, macular degeneration, and diabetic retinopathy. In cardiology, OCT provides high-resolution imaging of blood vessels to detect plaque buildup, assess arterial walls, and guide stent placement. By offering detailed imaging, OCT aids in diagnosis, treatment planning, and monitoring the progression of various conditions.

Additional Information & Related Terms

Examples of OCT Applications in MedTech

  1. Ophthalmology:

    • OCT is extensively used in ophthalmology to examine the retina and optic nerve, diagnosing conditions like macular degeneration, diabetic retinopathy, glaucoma, and retinal vein occlusion.


  2. Cardiology:

    • In cardiology, OCT is used to assess coronary artery health by providing high-resolution images of blood vessels, detecting plaque buildup, and guiding the placement of stents.


  3. Dermatology:

    • OCT is used to image the skin and subcutaneous tissues, helping to detect skin cancer, monitor wound healing, and assess other dermatological conditions.


  4. Dentistry:

    • OCT is also used in dentistry to provide high-resolution imaging of teeth and gums, allowing for early detection of cavities and other oral diseases.


Related Terms

  • Fluorescence Angiography: A technique often used alongside OCT in ophthalmology, where a contrast dye is injected to visualize blood flow in the retina and detect abnormalities.

  • Fundus Photography: A traditional imaging method used in ophthalmology to capture images of the retina, often compared with OCT for evaluating retinal health.

  • Coronary Artery Disease (CAD): A condition that can be diagnosed using OCT to assess plaque formation and arterial health in the coronary arteries.

  • Tomography: A general term for imaging methods that create cross-sectional images of objects or tissues, of which OCT is one type.

  • Optical Imaging: A broader category of imaging techniques, including OCT, that use light to capture images of tissue structures, often in the medical and biological fields.

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