Method and apparatus for the imaging of a labeled biological sample

Patent metadata

Field	Value
Publication number	US-9569828-B2
Application number	US-201213661364-A
Country	US
Kind code	B2
Filing date	Oct 26, 2012
Priority date	Apr 28, 2010
Publication date	Feb 14, 2017
Grant date	Feb 14, 2017

Abstract

A method and apparatus for the imaging of a labeled biological sample. The method comprises illuminating the labeled biological sample, generating members of a time series of images if the labeled biological sample, generating a plurality of difference images between later members of the time series of images of earlier members of the time series of images and combining the plurality of difference images to generate a final image of the labeled biological sample.

First claim

What is claimed is:

1. A method for the imaging of labeled biological samples labeled with detectable labels, using fluctuating intensities of radiated light from the biological samples, and comprising:
illuminating the labeled biological samples to produce the fluctuating intensities of radiated light in the labeled biological samples; and
localizing the detectable labels, the localizing comprising:
repeatedly collecting light scattered, reflected and fluoresced from the labeled biological sample with a detection device, thereby generating members of a time series of images of the labeled biological samples, wherein at least some of the time series of images illustrate the fluctuating intensities of radiated light;
generating a series of difference images between different pairings of later members of the time series of images and earlier members of the time series of images having the fluctuating intensities of radiated light by subtracting pixel intensities of the earlier members of the time series of images from the later members of the time series of images;
filtering the series of difference images with a filter; and

subsequently summing the filtered difference images to generate a final image of the labelled biological samples.

2. The method of claim 1 , wherein the filter is one of a high pass, Top-hat or Mexican-hat filter.

3. The method of claim 1 , wherein the illumination is provided by laser illumination.

4. The method of claim 1 , wherein the labeled biological sample is labeled with a fluorophore.

5. The method of claim 1 , further comprising scanning the labeled biological samples to generate one of the members of the time series of images.

6. The method of claim 1 , wherein the generating of the plurality of difference images comprises the generating of the difference images between sequential members of the time series of images.

7. The method of claim 1 further comprising combining the final image with a 3-D image of the labeled biological sample to generate a composite 3-D image.

8. An apparatus for the imaging of labeled biological samples labeled with detectable labels, using fluctuating intensities of radiated light from the biological samples, and comprising:
an illumination source for illuminating a portion of the labeled biological sample to produce the fluctuating intensities of radiated light in the biological sample;
a detection device for detecting radiation from the labeled biological sample;
a computer adapted to localize the detectable labels and to generate a final image of the labeled biological samples, the computer including
an image memory for storing members of a time series of images generated by the detection device by repeatedly collecting light scattered, reflected and fluoresced from the labeled biological sample, wherein at least some of the time series of images illustrate the fluctuating intensities of radiated light; and
an image processor adapted to generate a plurality of difference images between later members of the time series of images and earlier members of the time series of images having fluctuating intensities of radiated light by subtracting pixel intensities of the earlier members of the time series of images from later members of the time series of images, each of said plurality of difference images being generated from a different pairing of members of said time series of images, wherein said image processor includes a filter for filtering the plurality of difference images, and the image processor is adapted to subsequently sum the filtered difference images to generate the final image of the labeled biological sample.

9. The apparatus of claim 8 , wherein the illumination source is a scanning laser.

10. The apparatus of claim 8 , wherein the detection device is a charge-coupled device.

11. The apparatus of claim 8 , wherein the radiation from the labeled biological sample is fluorescent radiation.

12. The apparatus of claim 8 , wherein the image processor is adapted to apply a filter to the difference images.

13. The apparatus of claim 8 further comprising a display device for displaying the final image.

14. A computer program product comprising a non-transitory computer readable medium having control logic stored therein for causing a microscope to execute a method for the imaging of labeled biological samples labeled with detectable labels, using fluctuating intensities of radiated light from the biological samples by:
illuminating the labeled biological samples to produce the fluctuating intensities of radiated light in the labeled biological samples; and
localizing the detectable labels, the localizing comprising:
repeatedly collecting light scattered, reflected and fluoresced from the labeled biological sample with a detection device, thereby generating members of a time series of images of the labeled biological samples, wherein at least some of the time series of images illustrate differing results of the fluctuating intensities of radiated light;
generating a plurality of difference images between later members of the time series of images and earlier members of the time series of images having fluctuating intensities of radiated light by subtracting pixel intensities of the earlier members of the time series of images from the later members of the time series of images, each of said plurality of difference images being generated from a different pair of members of the time series of images; and
filtering the plurality of difference images with a filter; and

subsequently summing the filtered difference images to generate a final image of the labelled biological samples.

15. A method for the identification of tumor cells samples using fluctuating intensities of radiated light from the biological samples comprising:
labeling the tumor cells with a detectable label to form the labeled biological sample;
illuminating the labeled biological sample to produce the fluctuating intensities of radiated light in the labeled biological sample;
localizing the detectable labels, the localizing comprising:
repeatedly collecting light scattered, reflected and fluoresced from the labeled biological sample with a detection device, thereby generating members of a time series of images of the labeled biological sample, wherein at least some of the time series of images illustrate differing results of the fluctuating intensities of radiated light;
generating a series of difference images between later members of the time series of images and earlier members of the time series of images having differing fluctuating intensities of radiated light by subtracting pixel intensities of the earlier members of the time series of images from the later members of the time series of images;
filtering the series of difference images with a filter; and

subsequently summing the filtered difference images to generate a final image of the labeled biological sample; and
examining the final image of the labeled biological sample to identify at least one tumor cell in the labeled biological sample.

Assignees

• Munck Sebastian
• Annaert Wim
• Verstreken Patrik
• Vib Vzw
• Katholieke Univ Leuven K U

Inventors

• Munck Sebastian
• Annaert Wim
• Verstreken Patrik

Classifications

• G06T2207/10064

  Fluorescence image · CPC title

• G06T2207/30096

  Tumor; Lesion · CPC title

• G06T5/50 Primary

  using two or more images, e.g. averaging or subtraction · CPC title

• G06T2207/20224

  Image subtraction · CPC title

• G06K9/00134

  Physics · mapped topic