Related Experiment Video
Updated: Sep 19, 2025
15:18
Making MR Imaging Child's Play - Pediatric Neuroimaging Protocol, Guidelines and Procedure
Published on: July 30, 2009
18.3K
Artifacts and pitfalls in pediatric head computed tomography: physics, principles, and clinical impact
Joseph Wishart1, Sakura M Noda2,3, Jeffrey P Otjen2
1Department of Radiology, University of Washington School of Medicine, 1959 NE Pacific Street, P.O. Box 357987, Seattle, WA, 98195-7987, United States. wishartj@uw.edu.
Pediatric Radiology
|June 9, 2025
Summary
Pediatric head CT scans can have subtle artifacts that mimic disease. Understanding artifact causes and mitigation is crucial for accurate diagnosis in children.
Area of Science:
- Radiology
- Medical Imaging
- Pediatric Imaging
Background:
- Pediatric head computed tomography (CT) imaging faces unique challenges.
- These challenges lead to various imaging artifacts, some subtle.
- Artifacts can obscure anatomy or mimic pathology, impacting diagnosis.
Purpose of the Study:
- To review common artifacts in pediatric head CT.
- To explain artifact mechanisms related to acquisition, patient, and scanner factors.
- To discuss artifact mitigation strategies and image reconstruction.
Main Methods:
- Literature review of pediatric head CT artifacts.
- Analysis of technical explanations for artifact generation.
- Inclusion of clinical examples and mitigation techniques.
Main Results:
- Detailed explanations of artifacts from acquisition parameters.
- Discussion of artifacts related to patient characteristics (e.g., size, motion).
- Insights into artifacts from scanner performance and image reconstruction.
Conclusions:
- Knowledge of artifact mechanisms is critical for accurate pediatric head CT interpretation.
- Understanding acquisition parameters and patient factors aids in artifact identification.
- Mitigation strategies and image reconstruction offer solutions to minimize artifact impact.
Related Concept Videos
01:10Computed Tomography
6.4K
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...
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...
6.4K
01:14Imaging Studies I: CT and MRI
465
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...
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...
465
01:27Imaging Studies III: Computed Tomography
57
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...
57
01:24X-ray Imaging
7.8K
German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with...
7.8K
01:29Positron Emission Tomography
5.9K
Positron emission tomography (PET) is a medical imaging technique involving radiopharmaceuticals — substances that emit short-lived radiation. Although the first PET scanner was introduced in 1961, it took 15 more years before radiopharmaceuticals were combined with the technique and revolutionized its potential.
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body...
One of the main requirements of a PET scan is a positron-emitting radioisotope, which is produced in a cyclotron and then attached to a substance used by the part of the body...
5.9K
01:14Brain Imaging
323
Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
323