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Related Concept Videos

Protein Dynamics in Living Cells01:19

Protein Dynamics in Living Cells

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Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
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Related Experiment Video

Updated: Nov 25, 2025

Probing Structural and Dynamic Properties of Trafficking Subcellular Nanostructures by Spatiotemporal Fluctuation Spectroscopy
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MR cell size imaging with temporal diffusion spectroscopy.

Xiaoyu Jiang1, Hua Li2, Sean P Devan3

  • 1Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, TN 37232, USA.

Magnetic Resonance Imaging
|December 18, 2020
PubMed
Summary
This summary is machine-generated.

Non-invasive MRI methods like IMPULSED (imaging microstructural parameters using limited spectrally edited diffusion) can now measure mean cell size. This MRI-cytometry offers a less invasive alternative to biopsies for assessing tissue health.

Keywords:
Cell sizeCytometryDiffusionIMPULSEDMRIOscillating gradientdMRI

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Area of Science:

  • Biomedical Imaging
  • Cellular Biology
  • Medical Diagnostics

Background:

  • Cytological features like cell size are crucial for understanding tissue status.
  • Current methods rely on invasive biopsies, posing significant disadvantages.
  • Non-invasive techniques are needed to assess cellular microstructure.

Purpose of the Study:

  • To review the principles, implementation, and applications of Magnetic Resonance (MR) cell size imaging.
  • To highlight the development of MRI-cytometry for non-invasive cellular analysis.
  • To discuss the potential of MR cytometry in clinical diagnostics and treatment assessment.

Main Methods:

  • Utilizing temporal diffusion spectroscopy (TDS) to measure water diffusion across various timescales.
  • Employing IMPULSED (imaging microstructural parameters using limited spectrally edited diffusion) MRI sequences.
  • Analyzing acquired data to derive cell size distributions, enabling MRI-cytometry.

Main Results:

  • IMPULSED provides rapid, robust, and reliable mapping of mean cell size suitable for clinical use.
  • Cell size distributions can be derived from IMPULSED data, establishing MRI-cytometry.
  • MR cell size imaging offers a non-invasive alternative to traditional biopsy methods.

Conclusions:

  • MR cell size imaging based on TDS is a validated, non-invasive technique for assessing cellular microstructure.
  • MRI-cytometry has broad applications, including liver disease diagnosis and cancer treatment response assessment.
  • Future directions include refining MR cytometry for enhanced diagnostic capabilities and broader clinical adoption.