Open magnetic resonance imaging (MRI) scanners
Hailey D
Record ID 32006001102
English
Authors' objectives:
The aim of this bulletin is to provide an overview of open magnetic resonance imaging (MRI) scanners.
Authors' recommendations:
In most MRI scanners, the patient examination table fits inside a long cylindrical tube. Large patients cannot be accommodated, and some persons experience claustrophobic reactions. Open MRI systems, in which the patient is placed between two plates, overcome these disadvantages.
Open MRI scanners are widely used in health care. High-field closed MRI systems are preferred for many examinations.
Early versions of open MRI scanners had low magnetic field strength, gave poorer image quality than most closed systems, and required longer examination times. Newer open scanners include machines with higher magnetic field strengths and improved image quality.
Closed high magnetic field scanners with short magnets and wide bore tubes offer improved comfort to patients, and may be an alternative to open scanners.
There is interest in using open systems for intra-operative and image-guided interventions.
Authors' methods:
Overview
Details
Project Status:
Completed
URL for project:
http://www.cadth.ca/media/pdf/E0011_MRIScanners_cetap_e.pdf
Year Published:
2006
English language abstract:
An English language summary is available
Publication Type:
Not Assigned
Country:
Canada
MeSH Terms
- Magnetic Resonance Imaging
Contact
Organisation Name:
Canadian Agency for Drugs and Technologies in Health
Contact Address:
600-865 Carling Avenue, Ottawa, ON K1S 5S8 Canada. Tel: +1 613 226 2553; Fax: +1 613 226 5392;
Contact Name:
requests@cadth.ca
Contact Email:
requests@cadth.ca
Copyright:
Canadian Agency for Drugs and Technologies in Health (CADTH)
This is a bibliographic record of a published health technology assessment from a member of INAHTA or other HTA producer. No evaluation of the quality of this assessment has been made for the HTA database.