Non-rigid MR-TRUS image registration for image-guided prostate biopsy using correlation ratio-based mutual information

详细信息    查看全文

• 作者：Lun Gong ; Haifeng Wang ; Chengtao Peng ; Yakang Dai…
• 关键词：Prostate ; Needle biopsy ; Non ; rigid registration ; CRMI ; ISGD
• 刊名：BioMedical Engineering OnLine
• 出版年：2017
• 出版时间：December 2017
• 年：2017
• 卷：16
• 期：1
• 全文大小：3656KB
• 刊物类别：Engineering
• 刊物主题：Biomedical Engineering; Biomaterials; Biotechnology; Biomedical Engineering/Biotechnology;
• 出版者：BioMed Central
• ISSN：1475-925X
• 卷排序：16

文摘

BackgroundTo improve the accuracy of ultrasound-guided biopsy of the prostate, the non-rigid registration of magnetic resonance (MR) images onto transrectal ultrasound (TRUS) images has gained increasing attention. Mutual information (MI) is a widely used similarity criterion in MR-TRUS image registration. However, the use of MI has been challenged because of intensity distortion, noise and down-sampling. Hence, we need to improve the MI measure to get better registration effect.