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Related Concept Videos

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 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...
241
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

241
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...
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Related Experiment Video

Updated: Jan 4, 2026

Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging
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Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging

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Emergency department telemedicine consults decrease time to interpret computed tomography of the head in a

Morgan B Swanson1,2, Aspen C Miller1, Marcia M Ward3

  • 1Department of Emergency Medicine, University of Iowa, Iowa City, IA, USA.

Journal of Telemedicine and Telecare
|November 6, 2019
PubMed
Summary
This summary is machine-generated.

Telemedicine improves emergency stroke care by speeding up head CT interpretation and tissue plasminogen activator (tPA) administration, though benefits vary across different telemedicine networks.

Keywords:
Computed tomographyemergency departmenttelemedicine

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Area of Science:

  • Neurology
  • Health Services Research
  • Medical Informatics

Background:

  • Telemedicine enhances emergency stroke care access in rural settings.
  • The comparative effectiveness of various telemedicine network models remains unclear.

Purpose of the Study:

  • To assess telemedicine's impact on emergency department (ED) stroke care.
  • To determine if telemedicine's effect varies by network type.
  • To describe process outcome variations across EDs utilizing telemedicine.

Main Methods:

  • Prospective cohort study of 932 stroke patients across four telemedicine networks (Nov 2015 - Dec 2017).
  • Primary exposure: telemedicine consultation during ED evaluation.
  • Key outcomes: timely head CT interpretation (<45 min) and time to tPA administration.

Main Results:

  • 36% of patients received telemedicine consults.
  • Telemedicine use was linked to higher odds of timely head CT interpretation (aOR=3.03).
  • Telemedicine was associated with faster tPA administration (aHR=1.81), with varying impact across networks.

Conclusions:

  • Telemedicine consultation in the ED reduces time for head CT interpretation in stroke patients.
  • The magnitude of telemedicine's benefit in stroke care differs across networks.
  • Further research should explore the heterogeneity of telestroke effects.