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Locoregional therapy (LT) is a popular method to cure hepatocellular carcinoma (HCC) of liver in the last few years. Evaluating the treated margin is a critical factor for predicting local recurrence after locoregional treatment is done. In this paper, we proposed a non-rigid registration method with constraint of anatomic landmarks for assessing treated margin of locoregional therapy. Compared with...
Recently a growing interest has been seen in minimally invasive treatments with open configuration magnetic resonance (Open-MR) scanners. Because of the lower magnetic field (0.5T) and various different surgical conditions, sometimes tumors can not be visualized clearly on Open-MR volumes. Combining of CT volumes acquired before surgery, it is possible to identify the tumor's location by application...
Automatic tumor detection and segmentation is essential for the computer-aided diagnosis of live tumors in CT images. However, it is a challenging task in low-contrast images as the low-level images are too weak to detect. In this paper, we propose a new method for the automatic detection of liver tumors. We first adaptively enhance the intensity contrast of CT images by probability density function...
Two major cross-sectional imaging modalities used in the medical field for the diagnosis of abdominal conditions are X-ray computed tomography and Magnetic resonance imaging. Dramatic technological advances have been achieved in the both imaging modalities in recent years, it has become possible to obtain images with quite high spatial, temporal and contrast resolution. In this article, recent development...
In this paper, we propose a new method to detect liver tumors in CT images automatically. The proposed method is composed of two steps. In the first step, tumor candidates are extracted by EM/MPM algorithm; which is used to cluster liver tissue. To cluster a dataset, EM/MPM algorithm exploits both intensity of voxels and labels of the neighboring voxels. It increases the accuracy of detection, with...
Recently a growing interest has been seen in minimally invasive treatments with open configuration magnetic resonance (Open-MR) scanners. In this paper, we proposed a semi-automatic non-rigid 3D MR-CT image registration technique for MR-Guided Liver Cancer Surgery in which cancer tissues are coagulated by microwave ablation. Because of the lower magnetic field (0.5 T) and various different surgical...
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