What type of matrix do you use for cervical GI filling?

For cervical gastrointestinal (GI) filling, a common type of matrix used is a soft tissue matrix, which is designed to support the filling of the cervical region while ensuring proper alignment and stability. This matrix can help in the accurate placement of contrast agents during imaging procedures. Additionally, it may involve the use of hydrogel or other biocompatible materials to optimize the filling process. The choice of matrix may vary based on specific clinical requirements and patient anatomy.