Why a specific protocol?

The Episealer implant and the Epiguide surgical tool are designed based on MRI data. MRI provides detailed images of the anatomy and is used both for visualisation and assessment of e.g. lesions in cartilage and underlying bone. This is achieved by using a tailored 3D sequence as well as conventional diagnostic sequences (2D sequences). The Episurf MRI protocol is optimised for best possible assessment of all aspects of the patient’s knee chondral and bone defects. From the MRI 3D sequence, a 3D model is created that allows the individualised surgical implants and instruments to be designed for an exact match to the anatomy.

To use the Episurf MRI protocol, it needs to be configured on an MRI scanner in your radiology department. The protocol is available from your local Episurf representative who will assist your radiology team with configuring the scanner with the correct settings.

The protocol

Episurf has developed a specific MRI protocol needed to be applied for potential Episealer patients. This is to ensure correct damage assessment, 3D visualisation and device design. The protocol can be applied to Siemens, GE and Philips MR-scanners with a magnetic field strength of at least 1.5T and an appropriate knee coil. The protocol consists of a 3D sequence and 4-5 diagnostic 2D sequences.


How to set up the protocol

Working with your local Episurf representative, the MRI protocol is put in place in 4 simple steps:

  1. Specify the MRI machine: Let Episurf know which MRI machine you are using, so the correct protocol can be provided.
  2. Configure the protocol: once Episurf has sent your MRI department the specific protocol, the specific settings can be simply loaded on your machine. Your Episurf representative will be available to help you.
  3. Run a test scan: once the MRI protocol has been correctly set-up on the MRI scanner, a test scan will need to be performed and assessed by Episurf. This is to ensure that MR images of desired quality are acquired.
  4. Confirmed set-up: Episurf will confirm with you that the test scan is satisfactory. You are now ready to start scanning patients.