磁共振成像中强度不均匀性校正方法综述。

A review of methods for correction of intensity inhomogeneity in MRI.

作者信息

Vovk Uros, Pernus Franjo, Likar Bostjan

机构信息

University of Ljubljana, Faculty of Electrical Engineering, Trzaska 25, 1000 Ljubljana, Slovenia.

出版信息

IEEE Trans Med Imaging. 2007 Mar;26(3):405-21. doi: 10.1109/TMI.2006.891486.

DOI:10.1109/TMI.2006.891486

PMID:17354645

Abstract

Medical image acquisition devices provide a vast amount of anatomical and functional information, which facilitate and improve diagnosis and patient treatment, especially when supported by modern quantitative image analysis methods. However, modality specific image artifacts, such as the phenomena of intensity inhomogeneity in magnetic resonance images (MRI), are still prominent and can adversely affect quantitative image analysis. In this paper, numerous methods that have been developed to reduce or eliminate intensity inhomogeneities in MRI are reviewed. First, the methods are classified according to the inhomogeneity correction strategy. Next, different qualitative and quantitative evaluation approaches are reviewed. Third, 60 relevant publications are categorized according to several features and analyzed so as to reveal major trends, popularity, evaluation strategies and applications. Finally, key evaluation issues and future development of the inhomogeneity correction field, supported by the results of the analysis, are discussed.

摘要

医学图像采集设备可提供大量的解剖学和功能信息，这有助于并改善诊断和患者治疗，尤其是在现代定量图像分析方法的支持下。然而，特定模态的图像伪影，如磁共振成像（MRI）中的强度不均匀现象，仍然很突出，并且会对定量图像分析产生不利影响。本文综述了为减少或消除MRI中强度不均匀性而开发的众多方法。首先，根据不均匀性校正策略对这些方法进行分类。其次，综述了不同的定性和定量评估方法。第三，根据几个特征对60篇相关出版物进行分类并分析，以揭示主要趋势、受欢迎程度、评估策略和应用。最后，在分析结果的支持下，讨论了不均匀性校正领域的关键评估问题和未来发展。