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Related Concept Videos

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...
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 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...
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT01:25

Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT

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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Updated: Jun 11, 2026

Non-invasive Skeletal Muscle Quantification in Small Animals Using Micro-computed Tomography
07:33

Non-invasive Skeletal Muscle Quantification in Small Animals Using Micro-computed Tomography

Published on: November 8, 2024

Quantitative computed tomography.

Thomas F Lang1

  • 1Joint Bioengineering Graduate Group, and Department of Radiology and Biomedical Imaging, University of California-San Francisco, San Francisco, CA 94143-0946, USA. Thomas.Lang@Radiology.ucsf.edu

Radiologic Clinics of North America
|July 9, 2010
PubMed
Summary
This summary is machine-generated.

Volumetric quantitative measures offer comprehensive bone density and strength assessments, unlike traditional methods. These advanced techniques are crucial for studying osteoporosis in aging, disuse, and treatment contexts.

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Semiautomated Longitudinal Microcomputed Tomography-based Quantitative Structural Analysis of a Nude Rat Osteoporosis-related Vertebral Fracture Model

Published on: September 28, 2017

Area of Science:

  • Bone densitometry and biomechanics
  • Osteoporosis research
  • Medical imaging analysis

Background:

  • Traditional methods like DXA, CT, and MRI are limited in assessing central skeletal bone density and strength.
  • Radiation dose and signal-to-noise ratio challenges restrict peripheral skeleton analysis with current imaging.
  • A need exists for comprehensive volumetric bone assessment for osteoporosis research.

Purpose of the Study:

  • To highlight the application of volumetric quantitative measures in osteoporosis research.
  • To compare volumetric measures with conventional bone imaging techniques.
  • To discuss the utility of volumetric measures in understanding aging, disuse, and drug effects on bone.

Main Methods:

  • Volumetric quantitative measures provide cortical and trabecular bone mineral density.
  • Cross-sectional geometry is assessed using volumetric data.
  • Patient-specific finite element modeling estimates whole-bone strength.

Main Results:

  • Volumetric measures offer detailed insights into bone structure and strength.
  • These techniques overcome limitations of peripheral imaging in conventional methods.
  • Comprehensive bone analysis is achievable for osteoporosis studies.

Conclusions:

  • Volumetric quantitative measures represent an advanced approach to bone assessment.
  • These methods are valuable for investigating osteoporosis related to aging, disuse, and therapeutic interventions.
  • Future research can leverage volumetric measures for more precise osteoporosis management.