Source 1primary paper2004Apmis
Toolkit/spectral imaging system based on liquid crystal tunable filters
spectral imaging system based on liquid crystal tunable filters
Also known as: liquid crystal tunable filter-based spectral imaging, spectral imaging system
Taxonomy: Technique Branch / Method. Workflows sit above the mechanism and technique branches rather than replacing them.
Summary
Using a spectral imaging system based on liquid crystal tunable filters, we were able to separate individual spectral species on a pixel-by-pixel basis.
Usefulness & Problems
Why this is useful
This imaging system separates different fluorescent spectral species on a pixel-by-pixel basis. In the abstract it is used to support dual-color whole-body imaging of host vessels and tumor cells.; separating individual spectral species on a pixel-by-pixel basis; supporting non-invasive whole-body dual-color imaging
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This imaging system separates different fluorescent spectral species on a pixel-by-pixel basis. In the abstract it is used to support dual-color whole-body imaging of host vessels and tumor cells.
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separating individual spectral species on a pixel-by-pixel basis
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supporting non-invasive whole-body dual-color imaging
Problem solved
It helps resolve multiple fluorescent signals in the same image so host and tumor components can be distinguished non-invasively.; disambiguates overlapping fluorescent signals in multicolor imaging
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It helps resolve multiple fluorescent signals in the same image so host and tumor components can be distinguished non-invasively.
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disambiguates overlapping fluorescent signals in multicolor imaging
Problem links
disambiguates overlapping fluorescent signals in multicolor imaging
LiteratureIt helps resolve multiple fluorescent signals in the same image so host and tumor components can be distinguished non-invasively.
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It helps resolve multiple fluorescent signals in the same image so host and tumor components can be distinguished non-invasively.
Published Workflows
Objective: Develop and apply mouse fluorescence-imaging models that enable real-time visualization of tumor angiogenesis in vivo.
Why it works: The described models use fluorescent protein labeling to create optical contrast or compartment-specific color coding, allowing tumor-associated vessels to be visualized in vivo. Additional spectral separation and skin-flap-assisted imaging are described as improving signal discrimination and detection sensitivity.
contrast between bright fluorescent tumors and nonluminous induced capillariescolor separation between host and tumor compartmentsnestin-driven GFP reporting of nascent vesselssurgical orthotopic implantationdual-color fluorescence imagingspectral imaging with liquid crystal tunable filterswhole-body optical imagingintravital imaging
Taxonomy & Function
Primary hierarchy
Technique Branch
Method: A concrete measurement method used to characterize an engineered system.
Mechanisms
multicolor fluorescence imagingspectral unmixing by pixel-by-pixel separation of fluorescent spectral speciesTechniques
Functional AssayTarget processes
No target processes tagged yet.
Implementation Constraints
cofactor dependency: cofactor requirement unknownencoding mode: genetically encodedimplementation constraint: context specific validationoperating role: sensor
It requires spectral imaging hardware based on liquid crystal tunable filters and fluorescently labeled specimens with separable spectra.; requires a spectral imaging system based on liquid crystal tunable filters
Independent follow-up evidence is still limited. Validation breadth across biological contexts is still narrow. Independent reuse still looks limited, so the evidence base may be fragile. No canonical validation observations are stored yet, so context-specific performance remains under-specified.
Validation
Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication
Supporting Sources
Ranked Claims
The spectral dual-color imaging approach non-invasively visualized host GFP-expressing vessels within an RFP-labeled orthotopic human breast tumor by real-time whole-body imaging.
A spectral imaging system based on liquid crystal tunable filters separates individual spectral species on a pixel-by-pixel basis.
RFP-expressing tumors transplanted to nestin-GFP mice enable specific visualization of nascent vessels in skin-growing tumors such as melanoma.
Approval Evidence
1 source2 linked approval claimsfirst-pass slug spectral-imaging-system-based-on-liquid-crystal-tunable-filters
Using a spectral imaging system based on liquid crystal tunable filters, we were able to separate individual spectral species on a pixel-by-pixel basis.
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applicationsupports
The spectral dual-color imaging approach non-invasively visualized host GFP-expressing vessels within an RFP-labeled orthotopic human breast tumor by real-time whole-body imaging.
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capabilitysupports
A spectral imaging system based on liquid crystal tunable filters separates individual spectral species on a pixel-by-pixel basis.
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Comparisons
Source-stated alternatives
The abstract does not name a direct alternative instrument, but it presents this system as part of the dual-color imaging approach.
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The abstract does not name a direct alternative instrument, but it presents this system as part of the dual-color imaging approach.
Source-backed strengths
enables pixel-by-pixel spectral separation
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enables pixel-by-pixel spectral separation
Compared with imaging
The abstract does not name a direct alternative instrument, but it presents this system as part of the dual-color imaging approach.
Shared frame: source-stated alternative in extracted literature
Strengths here: enables pixel-by-pixel spectral separation.
Source:
The abstract does not name a direct alternative instrument, but it presents this system as part of the dual-color imaging approach.
Compared with imaging surveillance
The abstract does not name a direct alternative instrument, but it presents this system as part of the dual-color imaging approach.
Shared frame: source-stated alternative in extracted literature
Strengths here: enables pixel-by-pixel spectral separation.
Source:
The abstract does not name a direct alternative instrument, but it presents this system as part of the dual-color imaging approach.
Ranked Citations
- 1.