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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 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 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 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...
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
Imaging Studies for Cardiovascular System IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...

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Updated: Jun 19, 2026

Semi-quantitative Assessment Using [18F]FDG Tracer in Patients with Severe Brain Injury
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CT imaging in motorcycle collision victims: routine or selective?

John M Compoginis1, Gabriel Akopian

  • 1Huntington Hospital, Pasadena, California, USA.

The American Surgeon
|November 5, 2009
PubMed
Summary

Liberal use of computed tomography (CT) scans in multisystem blunt trauma patients, even with normal clinical exams, improves diagnosis. This approach is particularly beneficial for evaluating neck and abdominal injuries in motorcycle accident victims.

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Area of Science:

  • Trauma Surgery
  • Diagnostic Imaging
  • Emergency Medicine

Background:

  • Computed tomography (CT) scans are increasingly accurate and efficient.
  • Some trauma centers employ a low threshold for CT use in trauma patient evaluation.

Purpose of the Study:

  • To evaluate the diagnostic benefits of liberal CT scanning in multisystem blunt trauma motorcycle accident victims.
  • To determine the utility of CT in identifying injuries missed by clinical examination.

Main Methods:

  • Retrospective review of a trauma registry at a Level II trauma center.
  • Inclusion criteria: consecutive motorcycle accident victims evaluated by a trauma surgeon and undergoing CT scans (head, cervical spine, chest, abdomen, or pelvis).
  • Calculation of the percentage of patients with clinically significant CT findings who had negative clinical examinations.

Main Results:

  • Significant findings on head CT were present in 48% of patients with normal clinical examinations.
  • Significant findings on cervical spine CT were present in 77% of patients with normal clinical examinations.
  • Significant findings on thoracic CT were present in 47% of patients with normal clinical examinations.
  • Significant findings on abdominal CT were present in 69% of patients with normal clinical examinations.

Conclusions:

  • Lower thresholds for CT use in multisystem blunt trauma patients are recommended, even with normal clinical examinations.
  • CT scanning is especially valuable for the evaluation of neck and abdominal injuries in this population.
  • Liberal CT use can improve diagnostic accuracy and patient outcomes in trauma care.