News | Magnetic Resonance Imaging (MRI) | October 26, 2016

Study Highlights Sedation Alternatives for Children Undergoing MRI

Mock MRI scanners, MR-compatible audiovisual systems and feed-sleep manipulation found to be most effective and provide greatest cost savings

ASRT, Radiologic Technology, clinical study, MRI, sedation alternatives, children, pediatric patients

October 26, 2016 — Hospitals should consider mock magnetic resonance imaging (MRI) sessions, MR-compatible audiovisual systems and feed-sleep manipulation strategies before sedating pediatric patients preparing for MR procedures, according to a new study.

The importance of assessing alternatives to sedation and general anesthesia before MR procedures, the effectiveness of sedation alternatives and an analysis of their cost savings are among the topics covered in a literature review published in the American Society of Radiologic Technologists’ scientific journal, Radiologic Technology.

Delaney McGuirt, B.S., R.T.(R)(MR), a radiologic technologist from the University of North Carolina Biomedical Research Imaging Center, used online databases to review dozens of studies published within the past 10 years to identify the most effective alternatives to sedation or general anesthesia for pediatric patients undergoing an MRI examination.

MR procedures require patients to remain still in a confined space for long periods. This can be extremely difficult for pediatric patients. According to McGuirt, preprocedural sedation or general anesthesia is commonly used to relax patients eight years old and younger. However, pediatric sedation is associated with a higher risk of respiratory depression resulting from oversedation, potentially causing a loss of protective reflexes and airway maintenance. As a result, alternative methods of preparing infants and children for MR examinations should be explored to reduce patient risk, as well as time and cost to facilities.

“Any measure that can be taken to increase the safety of patients is worth exploring, especially when dealing with the particularly sensitive population that is pediatrics,” said McGuirt.

In her research, McGuirt identified the eight most commonly used alternatives to pediatric sedation in MRI preparation: mock scanner, MR-compatible audiovisual system, feed-sleep manipulation, play therapy, incubators/immobilizers, photo diary, sucrose solution and guided imagery. Of the eight, mock scanner, MR-compatible audiovisual system and feed-sleep manipulation showed to be the most effective and provided the greatest cost savings.

The literature review reports that mock scanners — full-scale replicas of MR imaging units devoid of internal magnets — have a high success rate with guiding children through successful MR procedures and providing cost savings. For example, a program at the Royal Children’s Hospital in Australia that uses a mock scanner to prepare patients noted an 8.6 percent reduction in general anesthesia rates. Also, of 102 children who used the mock scanner, 98 percent went on to have a successful MRI procedure. Moreover, the hospital compared a full-scale mock MR examination, including staff and maintenance, with that of general anesthesia and found an estimated annual net savings of $117,870.

MR-compatible audiovisual systems, which allow patients to watch and listen to a movie during their scan, have a solid success rate as well, according to the literature review. McGuirt referenced a number of studies that showed high success rates using MR-compatible audiovisual systems, including one that reported an overall 9 percent reduction in sedation rates and a 13 percent decrease in sedation rates among children 3 to 10 years old.

Feed-sleep manipulation, a process where a child’s normal feeding and sleeping patterns are modified, is also effective, but primarily with children younger than four years of age. In addition, McGuirt cited several studies that showed high success rates (up to 96 percent), when scans were completed during children’s natural sleep cycle.

“Instead of relying on sedation, facilities should invest time in developing alternative methods for pre-procedural MRI preparation. Research has shown this has the potential to decrease possible hazards to the pediatric patient, as well as cut costs,” said McGuirt.

McGuirt stressed that current resources fail to provide a comprehensive review of all existing alternative sedation methods, and further investigation is needed to identify a best practice.

For more information: www.radiologictechnology.org

Related Content

This is the Siemens Magnetom Sola RT edition 1.5T MRI system optimized for radiation therapy displayed for the first time since gaining FDA clearance in 2018. It was displayed at the American Society for Radiotherapy and Oncology (ASTRO) 2018 annual meeting. Read more about this system at ASTRO 2018. #ASTRO18 #ASTRO2018
360 Photos | 360 View Photos | November 07, 2018
This is the Siemens Magnetom Sola RT edition 1.5T MRI system optimized for...
Cardiac Ultrasound Software Streamlines Fetal Heart Exams
Feature | Cardiovascular Ultrasound | October 30, 2018
A new tool called fetalHQ on GE Healthcare’s Voluson ultrasound systems is the first tool to simultaneously examine the...
Fans of Opposing Soccer Teams Perceive Games Differently

Image courtesy of University of York

News | Neuro Imaging | October 25, 2018
Scientists have scanned the brains of die-hard soccer fans to find out why supporters of rival teams often have very...
IMRIS, Siemens Strengthen Collaboration in Hybrid OR Neurosurgical Market
News | Hybrid OR | October 24, 2018
IMRIS, Deerfield Imaging, in partnership with Siemens Healthineers, announced a strengthened collaboration to advance...
Carotid Artery MRI Improves Cardiovascular Disease Risk Assessment
News | Magnetic Resonance Imaging (MRI) | October 23, 2018
Magnetic resonance imaging (MRI) measurements of wall thickness in the carotid arteries improve cardiovascular disease...
The Elekta Unity with 1.5T MRI embedded as a targeting system appeared at the annual meeting of the American Society of Radiation Oncology (ASTRO) in San Antonio, Texas. The system is being sold in Europe and could soon enter the U.S. marketplace. (Photo courtesy of Elekta)

The Elekta Unity with 1.5T MRI embedded as a targeting system appeared at the annual meeting of the American Society of Radiation Oncology (ASTRO) in San Antonio, Texas. The system is being sold in Europe and could soon enter the U.S. marketplace. (Photo courtesy of Elekta)

Feature | ASTRO | October 20, 2018 | By Greg Freiherr
A linear accelerator combined with high-field MRI could soon be on the U.S. market. If U.S.
FDA Clears Magnetom Sola 1.5T MRI From Siemens Healthineers
Technology | Magnetic Resonance Imaging (MRI) | October 09, 2018
The U.S. Food and Drug Administration (FDA) has cleared the Magnetom Sola, a 1.5 Tesla magnetic resonance imaging (MRI...
ViewRay and Miami Cancer Institute Host Symposium on MR-Guided Radiation Therapy
News | Image Guided Radiation Therapy (IGRT) | October 05, 2018
October 5, 2018 — Leading oncology experts from around the world recently met to discuss the integration of...