Mapping endometrial implants by 2D/2D registration of TVUS to MR images from point correspondences

We propose a multi-modal image registration and fusion method to cope with the limitations of Magnetic Resonance (MR) and Transvaginal Ultrasound (TVUS) imaging in observing abdominal endometrial implants. The proposed method facilitates the transfer of two types of information from a 2D TVUS image to a 2D MR slice: (1) the location and shape of small implants and (2) the implants' depth of infiltration in the host tissue. Our registration uses point correspondences sampled on user provided, corresponding organs' contours. Experimental results are provided for 5 patient datasets, showing that the proposed method outperforms the classical Thin-Plate Spline (TPS).

[1]  Jan Modersitzky,et al.  FAIR - Flexible Algorithms for Image Registration , 2009, Fundamentals of algorithms.

[2]  G. Warmbrand,et al.  Findings of pelvic endometriosis at transvaginal US, MR imaging, and laparoscopy. , 2011, Radiographics : a review publication of the Radiological Society of North America, Inc.

[3]  Yue Joseph Wang,et al.  Statistical volumetric model for characterization and visualization of prostate cancer , 2000, Medical Imaging.

[4]  Xuesong Lu,et al.  Three-dimensional nonrigid registration and fusion for image-guided surgery navigation system , 2010, 2010 International Conference of Medical Image Analysis and Clinical Application.

[5]  Nicholas Ayache,et al.  Rigid registration of 3-D ultrasound with MR images: a new approach combining intensity and gradient information , 2001, IEEE Transactions on Medical Imaging.

[6]  C. Peterson,et al.  Transvaginal Sonography in Reproductive Endocrinology and Infertility , 2010 .

[7]  Rudi Campo,et al.  Diagnosis of endometriosis: pelvic endoscopy and imaging techniques. , 2004, Best practice & research. Clinical obstetrics & gynaecology.