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Computed Tomography01:10

Computed Tomography

Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
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.
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
Positron Emission Tomography01:29

Positron Emission Tomography

Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body being...
Imaging Studies II: Positron Emission Tomography and Scintigraphy01:25

Imaging Studies II: Positron Emission Tomography and Scintigraphy

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.
Fundamental Principles of PET

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Related Experiment Video

Updated: May 17, 2026

Correlative Microscopy for 3D Structural Analysis of Dynamic Interactions
13:43

Correlative Microscopy for 3D Structural Analysis of Dynamic Interactions

Published on: June 24, 2013

Evaluation of a multicore-optimized implementation for tomographic reconstruction.

Jose-Ignacio Agulleiro1, José Jesús Fernández

  • 1Supercomputing and Algorithms group, University of Almería, Almería, Spain.

Plos One
|November 10, 2012
PubMed
Summary

Electron microscope tomography reconstructs 3D cell structures. This study optimizes standard computers for fast tomographic reconstruction, rivaling GPU performance without specialized hardware.

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Using Tomoauto: A Protocol for High-throughput Automated Cryo-electron Tomography
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Using Tomoauto: A Protocol for High-throughput Automated Cryo-electron Tomography

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Related Experiment Videos

Last Updated: May 17, 2026

Correlative Microscopy for 3D Structural Analysis of Dynamic Interactions
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Correlative Microscopy for 3D Structural Analysis of Dynamic Interactions

Published on: June 24, 2013

Using Tomoauto: A Protocol for High-throughput Automated Cryo-electron Tomography
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Using Tomoauto: A Protocol for High-throughput Automated Cryo-electron Tomography

Published on: January 30, 2016

Area of Science:

  • Biophysics
  • Computational Biology
  • Microscopy

Background:

  • Electron microscope tomography (EMT) reveals nanoscale cell structures from projection images.
  • High-resolution and wide-field-of-view imaging in EMT necessitates large datasets.
  • Tomographic reconstruction is computationally intensive due to algorithm complexity and large image sizes.

Purpose of the Study:

  • To present and evaluate an alternative approach for fast tomographic reconstruction.
  • To demonstrate the efficacy of multicore computer optimization for demanding computational tasks.

Main Methods:

  • Exploitation of modern multicore computer architecture.
  • Implementation of single-core code optimization and vector processing.
  • Utilization of multithreading and efficient disk I/O operations.

Main Results:

  • Achieved fast tomographic reconstructions on standard computers.
  • Demonstrated computational performance competitive with Graphics Processing Unit (GPU)-based solutions.
  • Validated the effectiveness of multicore optimization for complex image reconstruction.

Conclusions:

  • Multicore computer optimization offers a viable and efficient alternative to traditional high-performance computing for tomographic reconstruction.
  • This approach makes advanced cell structure analysis more accessible.
  • Further research can explore broader applications of optimized multicore processing in scientific imaging.