Multispectral medical imaging devices and methods thereof

A medical imaging and multi-spectral technology, applied in the field of medical imaging, can solve the problems of clinical assessment difficulties, lack of positioning and aiming, and impact measurement

Inactive Publication Date: 2016-02-03
CHRISTIE DIGITAL SYST USA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Other tools are only able to provide static images or low frame rate moving images which can make clinical assessment more difficult
Some tools lack a convenient way to accurately and repeatedly loc...

Method used

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  • Multispectral medical imaging devices and methods thereof
  • Multispectral medical imaging devices and methods thereof
  • Multispectral medical imaging devices and methods thereof

Examples

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Embodiment Construction

[0024] The multispectral medical imaging devices and methods discussed herein measure the reflectance intensity and compare it to a standard reflectance. Ambient light subtraction and melanin correction are also discussed. Approximate video or video frame rates can be achieved in real time. Scroll processing techniques and log-difference processing can be used to reduce overhead processing and increase frame rates. Image registration can be used to perform motion correction. Regions of high curvature and regions containing vasculature can be removed or masked from the processed oxygen saturation concentration image. Differential mode makes it possible to observe the difference in oxygen saturation from the control frame. Laser framing and positioning arrays are also provided to assist in proper positioning of the device relative to the target tissue.

[0025] The spectroscopic techniques discussed herein can be used to determine the concentration of three components of tar...

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Abstract

A multispectral medical imaging device includes illumination devices arranged to illuminate target tissue. The illumination devices emit light of different near-infrared wavelength bands. The device further includes an objective lens, a near-infrared image sensor positioned to capture image frames reflected from the target tissue, and a visible-light image sensor positioned to capture image frames reflected from the target tissue. A processor is configured to modulate near-infrared light output of the plurality of illumination devices to illuminate the target tissue. The processor is further configured to determine reflectance intensities from the image frames captured by the near-infrared image sensor and to generate a dynamic tissue oxygen saturation map of the target tissue using the reflectance intensities. The device further includes an output device connected to the processor for displaying the dynamic tissue oxygen saturation map.

Description

technical field [0001] The present invention relates to medical imaging, and more specifically, to a multispectral medical imaging device and method thereof. Background technique [0002] Multispectral medical imaging is known for measuring blood vessel and tissue oxygenation. It is an important tool. Quantified oxygenation data can assist medical professionals in providing better patient care. [0003] State-of-the-art techniques for multispectral medical imaging suffer from various drawbacks. Some tools only provide the ability to perform spot measurements on small areas of tissue. Other tools are only able to provide still images or low frame rate moving images, which can make clinical assessment more difficult. Some tools lack convenient methods to accurately and repeatedly locate and target target areas on the patient. In addition, it is often the case that environmental conditions such as overhead lighting and patient details such as skin color adversely affect th...

Claims

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Application Information

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IPC IPC(8): A61B5/00
CPCA61B5/1455A61B5/0261A61B5/489A61B2576/02A61B5/7207G16H30/40A61B5/02007A61B5/14551A61B5/70A61B5/742
Inventor G·瓦桑S·泽雷玛穆达巴迪R·B·瓦格纳D·布雷斯特R·阿麦拉德
Owner CHRISTIE DIGITAL SYST USA INC
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