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Pelvic MRI protocol : Endometriosis

Dr Praveen Jha and Dr Natalie Yang et al.

Evaluation of known endometriosis with MRI requires a slightly different protocol to a routine pelvic MRI (see Pelvic MRI protocol : routine), and should probably be reserved for known cases of endometriosis rather than for the assessment of pelvic pain.

IV buscopan is administered to reduce bowel peristalsis and hence improve image quality.

A good protocol involves:

  • body Coil
  • T1 and T2 axial
  • T1 fat suppressed sequences 1 axial, sagittal and coronal

Gadolinium is not particularly useful in evaluation of endometriomas 2 and does not improve detection of very small implants as small vessels enhance and may be misinterpreted as a small endometriotic deposit 1. Additionally, enhancement of endometrial deposits is variable post contrast and does not differentiate from other benign or malignant processes.

See also

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