Related Experiment Video

Updated: Aug 8, 2026

Positron Emission Tomography Using 64-Copper as a Tracer for the Study of Copper-Related Disorders
06:52

Positron Emission Tomography Using 64-Copper as a Tracer for the Study of Copper-Related Disorders

Published on: April 28, 2023

Normalized dose data for upper gastrointestinal tract contrast studies performed to infants

John Damilakis1, John Stratakis, Maria Raissaki

  • 1Department of Medical Physics, Faculty of Medicine, University of Crete, Iraklion 71003, Crete, Greece. damilaki@med.uoc.gr

Medical Physics
|May 16, 2006
PubMed

Insights

This study provides radiation dose data for infant upper gastrointestinal tract contrast (UGIC) studies. UGIC examinations pose a cancer risk, and radiation doses should be minimized.

Area of Science:

  • Medical Physics
  • Pediatric Radiology
  • Radiation Dosimetry

Background:

  • Upper gastrointestinal tract contrast (UGIC) studies are common in infants.
  • Accurate radiation dose estimation is crucial for pediatric procedures.
  • Limited data exists on radiation doses for UGIC studies in infants.

Purpose of the Study:

  • To provide normalized radiation dose data for infant UGIC studies.
  • To estimate average patient dose and associated cancer risks.
  • To establish data for minimizing radiation exposure in pediatric patients.

Main Methods:

  • Utilized Monte Carlo N-particle (MCNP) transport code with infant phantoms.
  • Validated MCNP results with physical anthropomorphic phantoms and TLD measurements.
  • Collected clinical data from 25 UGIC examinations in infants (two age groups).

Main Results:

  • Estimated organ and effective doses normalized to entrance skin dose (ESD) and dose area product (DAP).
  • Average effective doses were 1.6 mSv (0.5-5.9 months) and 1.9 mSv (6-15 months).
  • Cancer risk estimated up to 3 per 10,000 infants; comforter dose averaged 47 microGy.

Conclusions:

  • Normalized dose data enables accurate estimation of radiation doses from infant UGIC studies.
  • Radiation doses from UGIC examinations in infants are significant and require minimization.
  • The study provides essential data for optimizing radiation safety in pediatric fluoroscopy.

More Related Videos

A Whole Body Dosimetry Protocol for Peptide-Receptor Radionuclide Therapy (PRRT): 2D Planar Image and Hybrid 2D+3D SPECT/CT Image Methods09:49

A Whole Body Dosimetry Protocol for Peptide-Receptor Radionuclide Therapy (PRRT): 2D Planar Image and Hybrid 2D+3D SPECT/CT Image Methods

Published on: April 24, 2020

In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography08:13

In Vivo Quantitative Assessment of Myocardial Structure, Function, Perfusion and Viability Using Cardiac Micro-computed Tomography

Published on: February 16, 2016

Related Concept Videos

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...
Upper GI Series: Barium Swallow01:24

Upper GI Series: Barium Swallow

The Barium Swallow Study, or a Barium Esophagogram, is a diagnostic imaging method used to visualize the upper gastrointestinal (GI) tract, including the esophagus, stomach, and small intestine. It employs barium sulfate, a radiopaque contrast material, to provide clear images of the upper digestive system, helping to identify abnormalities, diseases, or structural issues.
Purpose and Procedure
Patients undergoing this procedure ingest a liquid containing barium sulfate with a chalky...
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 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 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 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...