Title
Regression-Based Line Detection Network for Delineation of Largely Deformed Brain Midline
Abstract
Brain midline shift is often caused by various clinical conditions such as high intracranial pressure, which can be deadly. To facilitate clinical evaluation, automated methods have been proposed to classify whether midline shift is severe or not, e.g., larger than 5 mm away from the ideal midline. There are only limited methods using landmark or symmetry, attempting to provide more intuitive results such as midline delineation. However, landmark- or symmetry-based methods could be easily affected by anatomical variability and large brain deformations. In this study, we formulated the midline delineation as a skeleton extraction task and proposed a novel regression-based line detection network (RLDN) for the robust midline delineation especially in largely deformed brains. Basically, the proposed method includes three parts: (1) multiscale line detection, (2) weighted line integration, and (3) regression-based refinement. The first two parts were used to capture high-level semantic and low-level detailed information to extract deformed midline, while the last part was utilized to regress more accurate midline positions. We validated the RLDN on 100 training and 28 testing subjects with a mean midline shift of 7 mm and the maximum shift of 16 mm (induced by hemorrhage). Experimental results show that our proposed method achieves state-of-the-art accuracy with a mean line difference of 1.17 +/- 0.72 mm and F1-score of 0.78 from manual delineations. Our proposed robust midline delineation method is also beneficial for other cases such as midline deformation from tumor, traumatic brain injury, and abscess.
Year
DOI
Venue
2019
10.1007/978-3-030-32248-9_93
Lecture Notes in Computer Science
DocType
Volume
ISSN
Conference
11766
0302-9743
Citations 
PageRank 
References 
1
0.39
0
Authors
10
Name
Order
Citations
PageRank
Hao Wei121.75
Xiangyu Tang210.39
Minqing Zhang331.43
Qingfeng Li455.18
Xiaodan Xing522.09
Xiang Sean Zhou61915129.40
Zhong Xue749645.70
Wen-Zhen Zhu8141.38
Zailiang Chen9439.10
Feng Shi1034432.30