Microscopy of a tissue sample using structured illumination
First Claim
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1. A system comprising:
- a structured light system comprising;
a source configured to project a light beam onto a fresh tissue sample;
a spatial light modulator to modulate the light beam,wherein the spatial light modulator is arranged in a plurality of orientations to form a plurality of illumination patterns onto a focal plane of the fresh tissue sample,an imaging system configured to produce a plurality of microscopy images from fluorescence emitted from the illuminated fresh tissue sample from each of the plurality of illumination patterns; and
a system control configured to provide a human-comprehensible clinically useful output associated with the medical procedure based on the plurality of microscopy images, wherein the system control rejects out of focus light in the plurality of microscopy images to improve contrast of the output.
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Abstract
Systems and methods are provided for evaluating a fresh tissue sample, prepared as to fluoresce under illumination, during a medical procedure. A structured light source is configured to project a spatially patterned light beam onto the fresh tissue sample. An imaging system is configured to produce an image from fluorescence emitted from the illuminated fresh tissue sample. A system control is configured to provide a human-comprehensible clinically useful output associated with the medical procedure.
29 Citations
20 Claims
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1. A system comprising:
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a structured light system comprising; a source configured to project a light beam onto a fresh tissue sample; a spatial light modulator to modulate the light beam, wherein the spatial light modulator is arranged in a plurality of orientations to form a plurality of illumination patterns onto a focal plane of the fresh tissue sample, an imaging system configured to produce a plurality of microscopy images from fluorescence emitted from the illuminated fresh tissue sample from each of the plurality of illumination patterns; and a system control configured to provide a human-comprehensible clinically useful output associated with the medical procedure based on the plurality of microscopy images, wherein the system control rejects out of focus light in the plurality of microscopy images to improve contrast of the output. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method comprising:
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preparing a tissue sample such that the tissue will fluoresce under illumination, wherein preparing the tissue sample comprises applying a fluorescent stain to the tissue sample selected from the group comprising acriflavine, acridine orange, alum-tetracycline, eosin, picric acid, and acid fuchsine; projecting light comprising a first spatial pattern and a second spatial pattern onto the tissue sample; imaging the fluorescence emitted from the tissue sample due to the first spatial pattern of light and the second spatial pattern of light during a medical procedure; producing a microscopy image based on the fluorescence; and providing a human-comprehensible, clinically useful output based on the microscopy image. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A method comprising:
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preparing a tissue sample such that the tissue will fluoresce under illumination, comprising applying a fluorescent stain to the tissue sample selected from the group comprising acriflavine, acridine orange, alum-tetracycline, eosin, picric acid, and acid fuchsine; projecting light through a spatial light modulator in a plurality of orientations to provide a plurality of spatial light patterns sequentially illuminating a focal plane within the tissue sample; imaging the fluorescence emitted from the sample as each of the plurality of spatial light patterns are projected on the tissue sample to form a plurality of microscopy images; and combining the plurality of images to provide a clinical microscopy image during the medical procedure, wherein the clinical microscopy image has an improved contrast due to rejecting out of focus light in the plurality of microscopy images. - View Dependent Claims (17, 18, 19, 20)
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Specification