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Related Concept Videos

Electron Microscope Tomography and Single-particle Reconstruction01:07

Electron Microscope Tomography and Single-particle Reconstruction

Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
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Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
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Super-resolution Fluorescence Microscopy01:37

Super-resolution Fluorescence Microscopy

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 developed.

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Related Experiment Video

Updated: Jul 7, 2026

Dynamic Pore-scale Reservoir-condition Imaging of Reaction in Carbonates Using Synchrotron Fast Tomography
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Published on: February 21, 2017

SPRINT II: a second generation single photon ring tomograph.

W L Rogers1, N H Clinthorne, L Shao

  • 1Michigan Univ. Med. Center, Ann Arbor, MI.

IEEE Transactions on Medical Imaging
|January 1, 1988
PubMed
Summary
This summary is machine-generated.

The SPRINT II stationary tomograph offers advanced brain imaging capabilities. Its design provides high sensitivity and excellent spatial resolution for detailed neurological studies.

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Last Updated: Jul 7, 2026

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Published on: April 13, 2016

Area of Science:

  • Medical Imaging
  • Nuclear Medicine
  • Instrumentation

Background:

  • Positron Emission Tomography (PET) and Single-Photon Emission Computed Tomography (SPECT) are crucial for brain imaging.
  • Developing advanced tomographic systems is essential for improving diagnostic accuracy and understanding neurological conditions.

Purpose of the Study:

  • To introduce and characterize the SPRINT II, a novel stationary detector ring tomograph.
  • To evaluate the performance metrics of the SPRINT II for brain imaging applications.

Main Methods:

  • The SPRINT II utilizes eleven 2D sodium iodide camera modules with maximum-likelihood position logic.
  • It features a rotating lead aperture ring for in-plane collimation and parallel lead foil rings for z-axis collimation.
  • The system has a field of view of 22 cm in diameter by 12 cm long.

Main Results:

  • Sensitivity measurements were 10 count/s/μCi for an on-axis (99m)Tc point source and 8500 count/s/μCi/cm³ for a cylindrical source.
  • Longitudinal resolution was 10 mm FWHM.
  • In-plane resolution ranged from 8 mm FWHM on-axis to 5 mm FWHM at a 9 cm radius.

Conclusions:

  • The SPRINT II tomograph demonstrates promising performance characteristics for brain imaging.
  • Its design offers a balance of sensitivity and spatial resolution suitable for neurological studies.
  • Further performance results are presented, highlighting its potential in medical imaging.