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Related Concept Videos

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Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
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Two-dimensional (2D) microscopy encompasses a range of optical techniques that capture images within a single focal plane, offering detailed representations of microscopic structures. These techniques are essential in biological and medical research, enabling the visualization of cellular and subcellular structures with different levels of contrast and specificity.There are several major types of 2D microscopy, each with strengths and applications.Bright-Field MicroscopyBright-field microscopy...
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Total internal reflection fluorescence microscopy or TIRF is an advanced microscopic technique used to visualize fluorophores in samples close to a solid surface with a higher refractive index, such as a glass coverslip. TIRF only allows fluorophores in proximity to the solid surface to be excited. When light from a medium with a lower refractive index (such as air) hits the glass coverslip at a critical angle, the light undergoes total internal reflection stead of passing through the glass.
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Related Experiment Video

Updated: Dec 25, 2025

Computed Tomography-guided Time-domain Diffuse Fluorescence Tomography in Small Animals for Localization of Cancer Biomarkers
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Recent methodology advances in fluorescence molecular tomography.

Yu An1, Kun Wang1, Jie Tian2

  • 1Key Laboratory of Molecular Imaging, Institute of Automation, Chinese Academy of Sciences, Beijing, China.

Visual Computing for Industry, Biomedicine, and Art
|April 3, 2020
PubMed
Summary

Molecular imaging (MI) offers advanced disease diagnosis and monitoring. Fluorescence Molecular Tomography (FMT), a key MI technique, excels in sensitivity and safety for biological tissue imaging.

Keywords:
Fluorescence molecular tomographyForward problemImage reconstructionInverse problemPhoton propagation model

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Area of Science:

  • Biophysics
  • Pharmacology
  • Bioinformatics
  • Biochemistry
  • Molecular Physiology
  • Multimodal Imaging

Background:

  • Molecular imaging (MI) integrates diverse scientific disciplines for novel disease diagnosis and treatment evaluation.
  • Fluorescence Molecular Tomography (FMT) is a leading optical imaging modality within MI, known for its high sensitivity, cost-effectiveness, and safety.
  • FMT captures the 3D distribution of fluorescent probes in biological tissues, making it a research hotspot.

Purpose of the Study:

  • To provide an overview of recent methodological advancements in Fluorescence Molecular Tomography (FMT).
  • To focus on the photon propagation model based on the radiative transfer equation (RTE) and reconstruction techniques in FMT.
  • To summarize current research trends and identify future research directions in FMT methodology.

Main Methods:

  • Review of methodologies in Fluorescence Molecular Tomography (FMT).
  • Focus on the photon propagation model derived from the radiative transfer equation (RTE).
  • Detailed examination of forward and inverse problem solutions for FMT reconstruction.

Main Results:

  • Methodological advances in FMT are presented, emphasizing photon propagation models.
  • Reconstruction techniques, including solutions to forward and inverse problems, are detailed.
  • Current research hotspots and challenges in FMT methodology are identified.

Conclusions:

  • FMT is a crucial optical molecular imaging technology with significant advantages.
  • Methodological progress, particularly in photon propagation and reconstruction, is key to FMT development.
  • This survey highlights current research frontiers, guiding future investigations in FMT.