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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...
Radiological Investigation I: X-ray and CT01:30

Radiological Investigation I: X-ray and CT

Radiological investigations, including X-rays and computed tomography (CT) scans, are critical for diagnosing and evaluating various medical conditions. These imaging techniques provide valuable insights into the body's internal structures, aiding in the detection of abnormalities, assessment of disease progression, and development of treatment strategies. This article delves into two primary radiological investigations, chest X-rays and CT scans, outlining their purpose, procedures, and the...
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...
Radiological Investigation III: Pulmonary Angiogram and PET Scan01:13

Radiological Investigation III: Pulmonary Angiogram and PET Scan

Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...

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Related Experiment Video

Updated: Jun 7, 2026

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

Dose reduction strategies for thoracic multidetector computed tomography: background, current issues, and

Alexander A Bankier1, Denis Tack

  • 1Department of Radiology, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA. abankier@bidmc.harvard.edu

Journal of Thoracic Imaging
|November 3, 2010
PubMed
Summary

This review covers radiation exposure from thoracic computed tomography (CT) scans, detailing historical context and current dose reduction efforts. It also outlines future strategies and practical recommendations for minimizing radiation dose in thoracic CT imaging.

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Area of Science:

  • Radiology and Medical Imaging
  • Radiation Oncology
  • Public Health

Background:

  • Thoracic computed tomography (CT) is a vital diagnostic tool, but involves ionizing radiation exposure.
  • Understanding radiation risks associated with thoracic CT is crucial for patient safety.
  • Historical advancements in CT technology have influenced radiation dose levels.

Purpose of the Study:

  • To provide a comprehensive overview of radiation exposure in thoracic CT.
  • To review the evolution of dose reduction techniques in thoracic CT.
  • To offer practical guidance for minimizing radiation dose in clinical practice.

Main Methods:

  • Literature review of radiation exposure and dose reduction strategies in thoracic CT.
  • Analysis of historical trends in thoracic CT radiation doses.
  • Synthesis of current clinical guidelines and research findings.

Main Results:

  • Summary of established knowledge on radiation exposure from thoracic CT.
  • Overview of implemented dose reduction techniques for specific clinical indications.
  • Identification of emerging strategies for further dose optimization.

Conclusions:

  • Continuous efforts are needed to balance diagnostic efficacy with radiation safety in thoracic CT.
  • Implementing evidence-based dose reduction strategies is essential for routine clinical practice.
  • Future research should focus on advanced techniques for personalized radiation dose management.