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Related Concept Videos

Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

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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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Computed Tomography01:10

Computed Tomography

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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...
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Imaging Studies II: Positron Emission Tomography and Scintigraphy01:25

Imaging Studies II: Positron Emission Tomography and Scintigraphy

622
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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Body Temperature01:25

Body Temperature

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The body's temperature, measured in degrees, is determined by the balance between heat production and dissipation to the surrounding environment. For instance, if exercising vigorously, the body will produce more heat, causing sweat and dissipating that heat. Despite extreme environmental conditions and physical exertion, the human temperature-control system maintains a constant core body temperature (the temperature of deep tissues, which are the tissues located beneath the skin and other...
5.0K
Body Temperature01:07

Body Temperature

1.5K
Body temperature reflects the equilibrium between heat production and heat loss within the body. Most heat is generated by metabolically active tissues, particularly the liver, heart, brain, kidneys, and endocrine organs. At rest, skeletal muscles contribute 20–30% of total heat production, but during vigorous exercise, this can increase up to 30–40 times.
The average body temperature is approximately 37°C (98.6°F) and typically ranges from 36.1–37.2°C...
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Centroid of a Body01:16

Centroid of a Body

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The centroid is an important concept in engineering, physics, and mechanics. It is the geometric center of a body. It always lies within the body except in cases with holes or cavities. When the material that a body is composed of is uniform or homogeneous, the centroid coincides with its center of mass or the center of gravity.
For a homogeneous body with constant density, the centroid can usually be found using equations representing a balance of the moments of the body's volume. If the...
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Related Experiment Video

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Construction of a Realistic, Whole-Body, Three-Dimensional Equine Skeletal Model using Computed Tomography Data
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Whole-Body Computed Tomography Trauma Imaging.

Bryant Furlow

    Radiologic Technology
    |January 5, 2018
    PubMed
    Summary

    Whole-body computed tomography (CT) offers rapid, comprehensive trauma evaluation. However, its routine use in trauma imaging is debated due to unclear guidelines, incidental findings, and radiation concerns.

    Area of Science:

    • Radiology
    • Trauma Imaging
    • Medical Diagnostics

    Background:

    • Whole-body computed tomography (CT) is increasingly utilized in emergency departments for trauma assessment.
    • Its comprehensive evaluation capabilities aid in determining the extent and severity of injuries.
    • Despite its benefits, routine use faces challenges including lack of clear guidelines, management of incidental findings, and radiation exposure concerns.

    Purpose of the Study:

    • To describe the pathobiology, epidemiology, and assessment of polytrauma.
    • To discuss the diagnostic evaluation of trauma using whole-body CT scanning.

    Main Methods:

    • Review of existing literature on polytrauma.
    • Analysis of diagnostic protocols involving whole-body CT in trauma settings.

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    Main Results:

    • Whole-body CT provides a rapid and thorough assessment of traumatic injuries.
    • Controversies surrounding its use stem from management of incidental findings and radiation dose.
    • Clear guidelines for appropriate use are lacking.

    Conclusions:

    • Whole-body CT is a valuable tool in trauma imaging, but its application requires careful consideration.
    • Further research and guideline development are needed to address current controversies.
    • Optimizing the use of whole-body CT can enhance patient care in trauma settings.