An Efficient Level Set Method for Simultaneous Intensity Inhomogeneity Correction and Segmentation of MR Images

Intensity inhomogeneity is a common artefact that often occurs in medical images and is caused by imperfect image acquisition. For example, radio frequency field inhomogeneities appear due to either a non-uniform field itself or a non-uniform sensitivity of the receiver and transmitter coils. Such artefacts lead to undesired intensity variations in the same tissue types across the image. They hinder successful automated image segmentation, especially if the segmentation algorithms rely only on image intensities [15].

Source: Computerized Medical Imaging and Graphics - December 14, 2015 Category: Radiology Authors: Tatyana Ivanovska, René Laqua, Lei Wang, Andrea Schenk, Jeong Hee Yoon, Katrin Hegenscheid, Henry Völzke, Volkmar Liebscher Source Type: research