Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Computed Tomography01:10

Computed Tomography

9.5K
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...
9.5K
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

677
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...
677
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

567
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...
567

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Can an Unenhanced Reduced-Dose ECG-Gated CT of the Aorta Replace an ECG-Gated CT-Angiography for Diameter Follow-Up of the Ascending Aorta?

Journal of cardiovascular development and disease·2026
Same author

Sputum TGF-β Level Is Increased in Allergic Rhinitis and Related to Small Airways Dysfunction.

Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology·2026
Same author

A Case of Metastatic Pulmonary Calcification.

Journal of the Belgian Society of Radiology·2026
Same author

Reply to "How Airway Caliber Affects FeNO Thresholds Used to Identify Type 2 Inflammation in Asthma".

The journal of allergy and clinical immunology. In practice·2026
Same author

Exploration of Predictive Factors for Acute Radiotherapy-Induced Gastro-Intestinal Symptoms in Prostate Cancer Patients.

Cancers·2025
Same author

The missing hilum: Chronic lobar collapse.

Respiratory medicine case reports·2025

Related Experiment Video

Updated: Apr 1, 2026

Voluntary Breath-hold Technique for Reducing Heart Dose in Left Breast Radiotherapy
11:38

Voluntary Breath-hold Technique for Reducing Heart Dose in Left Breast Radiotherapy

Published on: July 3, 2014

47.6K

Chest Computed Tomography Radiation Dose Optimization: Comparison of Automatic Exposure Control Strength Curves.

Elodie Gyssels1, Pascale Bohy, Arnaud Cornil

  • 1*Department of Radiology, Epicura, Clinique Luis Caty, Baudour Departments of †Pneumology §Radiology, Hôpital Erasme, Brussels, Belgium ‡Department of Radiology, Clinique des Grangettes, Chêne-Bougeries, Switzerland.

Journal of Thoracic Imaging
|October 9, 2015
PubMed
Summary

Using a "very strong" automatic exposure control (AEC) setting for slim patients in chest CT scans maintains image quality while significantly reducing radiation dose to under 1 mSv.

More Related Videos

X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging
08:30

X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging

Published on: September 11, 2011

15.0K
Expedited Radiation Biodosimetry by Automated Dicentric Chromosome Identification ADCI and Dose Estimation
10:33

Expedited Radiation Biodosimetry by Automated Dicentric Chromosome Identification ADCI and Dose Estimation

Published on: September 4, 2017

16.8K

Related Experiment Videos

Last Updated: Apr 1, 2026

Voluntary Breath-hold Technique for Reducing Heart Dose in Left Breast Radiotherapy
11:38

Voluntary Breath-hold Technique for Reducing Heart Dose in Left Breast Radiotherapy

Published on: July 3, 2014

47.6K
X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging
08:30

X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging

Published on: September 11, 2011

15.0K
Expedited Radiation Biodosimetry by Automated Dicentric Chromosome Identification ADCI and Dose Estimation
10:33

Expedited Radiation Biodosimetry by Automated Dicentric Chromosome Identification ADCI and Dose Estimation

Published on: September 4, 2017

16.8K

Area of Science:

  • Radiology
  • Medical Imaging
  • Radiation Physics

Background:

  • Automatic exposure control (AEC) is crucial for optimizing radiation dose and image quality in computed tomography (CT).
  • Different AEC strength curves may impact radiation exposure and diagnostic image quality.
  • Standardizing AEC protocols is essential for consistent patient care and dose reduction.

Purpose of the Study:

  • To compare radiation dose and image quality between "average" and "very strong" automatic exposure control (AEC) strength curves.
  • To evaluate the impact of AEC settings on slim patients undergoing chest CT.
  • To determine if a higher AEC strength can reduce radiation dose without compromising image quality.

Main Methods:

  • A comparative study involving 410 patients undergoing unenhanced helical chest CT at two hospitals.
  • Hospital A used an "average" AEC strength, while Hospital B used a "very strong" AEC strength for slim patients.
  • Image quality was assessed by experienced radiologists, and radiation dose metrics (CT dose index volume, dose-length product) were recorded.

Main Results:

  • No significant differences in patient demographics or image quality scores were observed between the two hospitals.
  • The "very strong" AEC curve in Hospital B resulted in an 11% lower mean CT dose index volume compared to the "average" AEC curve in Hospital A.
  • The mean effective dose for the population was 0.95 mSv, indicating a dose reduction below 1 mSv.

Conclusions:

  • Adjusting the AEC strength curve from "average" to "very strong" for slim patients effectively reduces radiation dose in chest CT.
  • This adjustment maintains diagnostic image quality when using filtered back-projection reconstruction techniques.
  • Routine chest CT examinations can achieve effective doses below 1 mSv with optimized AEC settings.