MEANS AND METHODS FOR REDUCING THE ELECTROMAGNETIC ENERGY PROPAGATION FROM AN MRD'S MAGNET-BORE TO THE OUTER ENVIRONMENT SURROUNDING SAID MAGNET, AND VICE VERSA

摘要

The present invention discloses in an open bore MRD (100) having a volume of interest for imaging a body portion (31) and an inlet aperture for inserting the body portion within the bore, and an electrically earthed protecting sleeve (22) for reducing propagation of electromagnetic energy from the magnet bore to the outer environment surrounding the magnet and vice versa. The sleeve has a distal portion (23) insertably locatable within the bore and a proximal portion (22) attachable to the MRD aperture. The length and diameter of the sleeve is shaped and sized such that non-imaged portions of the body portion are within the sleeve, whilst the imaged portion protrudes from the distal end of the sleeve.