Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Methods and devices suitable for imaging blood-containing tissue

a blood-containing tissue and imaging technology, applied in the field of medical imaging, can solve the problems of insufficient contrast in visible-light color images to clearly distinguish small blood vessels

Inactive Publication Date: 2014-11-20
TEL HASHOMER MEDICAL RES INFRASTRUCTURE & SERVICES +1
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes methods and devices for imaging blood-containing tissue, such as for angiography. The methods involve acquiring images at different wavelength ranges and then combining them to create a monochromatic image. This allows for improved imaging of blood vessels and other tissue features. The devices include an image-acquirer and a processor for generating the monochromatic image. The technical effects of this invention include improved accuracy and efficiency in imaging blood-containing tissue.

Problems solved by technology

Visible-light color images often have insufficient contrast to clearly discern smaller blood vessels.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Methods and devices suitable for imaging blood-containing tissue
  • Methods and devices suitable for imaging blood-containing tissue
  • Methods and devices suitable for imaging blood-containing tissue

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0170]A first laboratory mouse was anesthetized. The skin covering the abdominal cavity was cut to define a loose flap, and the flap secured with needles to a flat surface, skin side down.

[0171]Using an SD-300 spectral imaging camera (ASI, Migdal Haemek, Israel) fitted with a halogen lamp illuminator and a cross-polarizing filter set, a spectral image of a portion of the inner surface of the flap was acquired between 400 nm and 800 nm. The acquired image is reproduced, in black-and-white, in FIG. 1A. In FIG. 1B, the spectrum of a portion of the image where a blood vessel was present (portion a) and the spectrum of the image where no blood vessel was present (portion b) are displayed.

example 2

[0172]A second laboratory mouse was anesthetized. The skin covering the abdominal cavity was cut to define a loose flap, and the flap secured with needles to a flat surface, skin side down.

[0173]Using an SD-300 spectral imaging camera (ASI, Migdal Haemek, Israel) fitted with a halogen lamp illuminator and a cross-polarizing filter set, a spectral image of a portion of the inner surface of the flap was acquired between 400 nm and 800 nm.

[0174]An RGB image including all the image data acquired between 400 nm and 800 nm is reproduced in black-and-white in FIG. 2A.

[0175]A red-free narrow band (520 nm-580 nm) monochrome image using data acquired between is reproduced in black-and-white in FIG. 2B. Although the contrast is superior to the equivalent RGB image, the spatial resolution appears to be similar.

[0176]An image generated in accordance with an embodiment of the method described herein where the first wavelength range was 400 nm to 600 nm and the second wavelength range was 600 nm t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Disclosed are methods and devices useful for imaging blood-containing tissue, for example for angiography, especially retinal angiography, whereby an image is generated by dividing pixels of an image acquired at some wavelength range by corresponding pixels of an image acquired at a different wavelength range. In some embodiments, a first wavelength range includes predominantly light having wavelengths between about 400 nm and about 620 nm and a second wavelength range includes predominantly light having wavelengths between about 620 nm and about 800 nm.

Description

RELATED APPLICATION[0001]The present application gains priority from UK Patent Application GB 1102209.2 filed 9 Feb. 2011.FIELD AND BACKGROUND OF THE INVENTION[0002]The invention, in some embodiments, relates to the field of medical imaging, and more particularly but not exclusively, to methods and devices suitable for imaging blood-containing tissue, for example for angiography, especially retinal angiography.[0003]Angiography is a technique for the in vivo imaging of blood vessels.[0004]In some instances, angiography is performed by administering a radio-opaque contrast agent in the blood vessels of a living subject and then acquiring an image of the blood vessels using an X-ray imaging modality. Such methods are useful, for example, to acquire a 3-dimensional representation of cerebral blood vessels.[0005]To avoid the use of an X-ray imaging modality, it is known to acquire a visible light image of shallow blood vessels in a bodily surface, for example, in the retina or mucosa su...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(United States)
IPC IPC(8): A61B5/026A61B3/12
CPCA61B3/1241A61B5/0261A61B1/041A61B3/12A61B5/0075A61B5/0077A61B5/0084A61B5/489F04C2270/041G06T5/50G06T7/0012
Inventor KOSTENICH, GENADYORENSTEIN, ARIEBELKIN, MICHAEL
Owner TEL HASHOMER MEDICAL RES INFRASTRUCTURE & SERVICES
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com