Chronic pelvic pain caused by residual ovaries and ovarian remnants.

Objective: To determine the diagnostic effectiveness and treatment of women with chronic lower abdominal pain due to residual ovaries or ovarian remnants.

Design: A prospective observational study.

Setting: Tertiary referral pelvic pain clinic.

Correction of the non-uniform spatial sensitivity of electrical impedance tomography images.

One of the clinical applications of electrical impedance tomography (EIT) is the measurement of volume changes of body fluids. However, the spatial sensitivity of images produced by the Sheffield Mark I system is non-uniform and if quantitative comparisons of resistivity images resulting from volume changes are to be mad, this non-uniformity must be corrected for. All experimental data were collected from a phantom consisting of semi-permeable membrane tubes fixed vertically at different distances from the centre of a cylindrical tank which was filled with a saline solution of resistivity 5 omega m.