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Magnetic Resonance Imaging01:24

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
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Imaging Studies IV: Magnetic Resonance Imaging01:27

Imaging Studies IV: Magnetic Resonance Imaging

Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...
Radiological Investigation II: MRI and Ventilation Perfusion Scan01:30

Radiological Investigation II: MRI and Ventilation Perfusion Scan

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MRI
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Updated: Jul 2, 2026

Making MR Imaging Child's Play - Pediatric Neuroimaging Protocol, Guidelines and Procedure
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Making MR Imaging Child's Play - Pediatric Neuroimaging Protocol, Guidelines and Procedure

Published on: July 30, 2009

Practical body MRI-A paediatric perspective.

Oystein E Olsen1

  • 1Radiology Department, Great Ormond Street Hospital for Children NHS Trust, Great Ormond Street, London WC1N 3JH, United Kingdom. olseno@gosh.nhs.uk

European Journal of Radiology
|September 5, 2008
PubMed
Summary
This summary is machine-generated.

This review explores key factors for high-quality pediatric body magnetic resonance imaging (MRI). It focuses on optimizing voxel size, signal-to-noise ratio (SNR), motion artifacts, and contrast for better diagnostic accuracy.

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Whole-body PET/MRI of Pediatric Patients: The Details That Matter
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Whole-body PET/MRI of Pediatric Patients: The Details That Matter

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Making MR Imaging Child's Play - Pediatric Neuroimaging Protocol, Guidelines and Procedure
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Whole-body PET/MRI of Pediatric Patients: The Details That Matter
10:02

Whole-body PET/MRI of Pediatric Patients: The Details That Matter

Published on: December 19, 2017

Area of Science:

  • Radiology
  • Medical Imaging
  • Pediatric Imaging

Background:

  • Body magnetic resonance imaging (MRI) quality is crucial for accurate diagnosis in pediatric patients.
  • Specific challenges exist in pediatric body MRI compared to adults, including anatomical differences and patient cooperation.
  • Optimizing imaging parameters is essential for overcoming these challenges and achieving diagnostic image quality.

Purpose of the Study:

  • To review and detail the primary factors influencing image quality in pediatric body MRI.
  • To provide practical guidance for radiologists and technicians on optimizing MRI acquisition parameters.
  • To highlight differences in image optimization strategies between pediatric and adult body MRI.

Main Methods:

  • Review of established principles and techniques in body MRI.
  • Discussion of critical parameters: voxel size, signal-to-noise ratio (SNR), acquisition time, and motion artifact management.
  • Analysis of contrast optimization strategies specific to pediatric pathologies.

Main Results:

  • Optimal voxel size selection is critical for spatial resolution.
  • Balancing SNR and motion artifact by adjusting acquisition time is a key challenge.
  • Image contrast in pediatric body MRI requires tailored approaches compared to adults.

Conclusions:

  • Achieving high-quality pediatric body MRI necessitates careful optimization of fundamental imaging parameters.
  • Understanding the interplay between SNR, motion, and contrast is vital for effective image acquisition.
  • This review offers practical insights for improving diagnostic yield in pediatric body MRI examinations.