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X-ray Imaging01:24

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German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with...
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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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Electron Microscope Tomography and Single-particle Reconstruction01:07

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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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Imaging Studies III: Computed Tomography01:27

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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...
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Imaging Studies VII: Vascular Imaging01:19

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DefinitionRenal angiography, also known as renal arteriography, is an imaging technique used to obtain a comprehensive view of blood flow and the vascular structure of blood vessels in the kidneys and surrounding areas.PurposeRenal angiography detects blood vessel abnormalities in the kidneys, such as aneurysms, stenosis, thrombosis, vascular tumors, and renal artery stenosis. It evaluates kidney function and guides interventional treatments like angioplasty or stent placement.Pre-Procedure...
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Imaging Studies II: Ultrasonography01:24

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IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...
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Related Experiment Video

Updated: May 1, 2026

Energy Dispersive X-ray Tomography for 3D Elemental Mapping of Individual Nanoparticles
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Multi-energy image sequence fusion based on variable energy X-ray imaging.

Bin Liu1, Yan Han1, Jinxiao Pan1

  • 1National Key Laboratory for Electronic Measurement Technology, North University of China, Taiyuan, Shannxi, China.

Journal of X-Ray Science and Technology
|April 5, 2014
PubMed
Summary

This study introduces multi-energy image sequence fusion to overcome X-ray imaging limitations. The new technology enhances dynamic range, enabling complete structural component imaging by adjusting tube voltage.

Keywords:
X-ray imagingcomplicated structural componentdynamic rangeeffective thicknesslinear weightingmulti-energy fusion

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Area of Science:

  • Materials Science
  • Imaging Technology
  • Non-destructive Testing

Background:

  • Conventional fixed-energy X-ray imaging struggles with complex structures due to wide X-ray attenuation ranges.
  • Limited dynamic range of X-ray systems leads to information loss for thick or dense components.
  • Existing methods fail to capture complete structural details in a single imaging pass.

Purpose of the Study:

  • To develop an advanced imaging technique for overcoming the dynamic range limitations of conventional X-ray imaging.
  • To enable comprehensive structural analysis of complex components with wide X-ray attenuation ranges.
  • To introduce multi-energy image sequence fusion for improved X-ray imaging.

Main Methods:

  • Multi-energy image sequence fusion technology adjusts tube voltage to match component effective thickness.
  • Subset sequences are extracted using a recursive template from the multi-energy image sequence.
  • Full projection information is reconstructed through linear weighting of fused subset sequences.

Main Results:

  • The developed technology successfully extends the dynamic range of X-ray imaging systems.
  • Complete internal structural information of complicated components can be obtained.
  • Experimental validation confirms the efficacy of the multi-energy fusion approach.

Conclusions:

  • Multi-energy image sequence fusion is a viable solution for imaging complex structures.
  • This technique significantly improves the information acquisition capabilities of X-ray imaging.
  • It offers a pathway to more comprehensive non-destructive evaluation of structural components.