Adhesion cine-MRI tutorial

Welcome to this short adhesion detection on cine-MRI tutorial study. This study introduces the modality and the basic concepts for detecting adhesions. This study is the same study that all observers joining the observer study [1] did, before starting the study.

Instructions

For each sagittal slice, you can scroll through the time dimension with your mouse scroll-wheel, or by clicking in the image and dragging down/upwards. Adhesion annotation by an expert radiologist are shown as an overlay on the slices. You can adjust the overlay alpha, to remove it if you want to inspect the slice in more detail.

Detection

We assess adhesions in three separate locations. First, adhesions to the anterior abdominal wall. Bowel should move freely up and down the anterior abdominal wall and no distortion should appear. Second, adhesions in the pelvis. Bowel loops should move separately from the bladder and vagina/uterus. This is more difficult to assess, as there are less movements there due to the technique of the patient. Also here, distortion should not appear. Third, adhesions between bowel loops. Signs are no movement between loops and/or distension of a bowel loop to a certain point presenting prestenotic dilatation.

[1]: Inter- and intra-observer variability and the effect of experience in cine-MRI for adhesion detection, B. de Wilde et al.