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Related Concept Videos

X-ray Imaging01:24

X-ray Imaging

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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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Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT01:25

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Calcium-Scoring CT ScanA calcium-scoring CT scan, also known as coronary artery calcium (CAC) scan, detects calcium deposits in the coronary arteries. This test assesses the risk of coronary artery disease (CAD), which can lead to cardiovascular events such as angina, heart failure, and sudden cardiac arrest.A calcium-scoring CT scan is generally recommended for individuals at intermediate risk of CAD without symptoms. It includes:Men aged 40-75 and women aged 50-75: Especially those with a...
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Imaging Studies for Cardiovascular System III: X-Ray01:20

Imaging Studies for Cardiovascular System III: X-Ray

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The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
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An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
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Radiological Investigation I: X-ray and CT01:30

Radiological Investigation I: X-ray and CT

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Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and...
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Related Experiment Video

Updated: Jan 3, 2026

Semiautomated Longitudinal Microcomputed Tomography-based Quantitative Structural Analysis of a Nude Rat Osteoporosis-related Vertebral Fracture Model
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X-ray-based quantitative osteoporosis imaging at the spine.

M T Löffler1, N Sollmann2, K Mei3

  • 1Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany. m_loeffler@web.de.

Osteoporosis International : a Journal Established As Result of Cooperation Between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA
|November 16, 2019
PubMed
Summary

Early osteoporosis diagnosis is crucial for preventing fractures. X-ray imaging, including dual-energy X-ray absorptiometry (DXA) and quantitative computed tomography (QCT), aids in assessing bone fragility and monitoring the disease.

Keywords:
Bone densitometryDual-energy X-ray absorptiometryOsteoporosisQuantitative computed tomographySpine

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Area of Science:

  • Medical Imaging
  • Orthopedics
  • Radiology

Background:

  • Osteoporosis is a prevalent metabolic bone disease, especially in the elderly.
  • Fractures due to bone fragility often lead to clinical osteoporosis diagnosis.
  • Early detection is vital for timely therapy and fracture prevention, reducing mortality.

Purpose of the Study:

  • To review and evaluate recent advancements in X-ray-based quantitative imaging for osteoporosis.
  • Focus on spinal imaging techniques for osteoporosis assessment.

Main Methods:

  • Discussion of standard dual-energy X-ray absorptiometry (DXA) and trabecular bone score (TBS).
  • Evaluation of quantitative computed tomography (QCT), including dual-energy BMD quantification.
  • Exploration of opportunistic BMD screening from routine CT scans.
  • Review of finite element analysis and microstructural parameter analysis.

Main Results:

  • DXA remains a reference standard, enhanced by TBS.
  • QCT offers 3D advantages and opportunistic screening potential.
  • Advanced analyses like finite element analysis provide deeper insights.

Conclusions:

  • X-ray imaging modalities are essential for osteoporosis fracture risk assessment.
  • DXA and QCT represent key tools, with QCT showing promise for opportunistic screening.
  • Emerging quantitative imaging techniques offer improved osteoporosis evaluation.