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arXiv 2109.09283eess.IVcs.CVcs.LG
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使用深度学习的子宫自动3D超声分割

Automatic 3D Ultrasound Segmentation of Uterus Using Deep Learning

Concordia University(康考迪亚大学);Institute of Cancer Research(癌症研究所)

Bahareh Behboodi, Hassan Rivaz, Susan Lalondrelle, Emma Harris

摘要:

子宫的在线分割可以帮助有效的基于图像的指导,用于在宫颈癌放射治疗期间将剂量精确递送到靶组织(子宫颈)。3D超声(US)可用于对子宫进行成像,然而,在US图像中找到子宫边界的位置是一项具有挑战性的任务,这是由于子宫中的大的日常位置和形状变化、膀胱填充的大的变化以及3D US图像的局限性(诸如在高度方向上的低分辨率和成像像差)。以前的研究子宫分割主要集中在开发半自动算法,需要手动初始化由专家临床医生完成。由于对自动3D子宫分割的研究有限,当前研究的目的是使用最近的基于深度学习的算法来克服半自动算法中手动初始化的需要。因此,我们开发了基于2D UNet的网络,这些网络基于两种场景进行训练。在第一种情况下,我们在每个平面上训练了3个不同的网络(即,矢状、冠状、轴向)。在第二种情况下,我们提出的网络使用每个3D体积的所有平面进行训练。我们提出的方案可以克服以前的半自动算法的初始手动选择。

英文摘要:

On-line segmentation of the uterus can aid effective image-based guidance for precise delivery of dose to the target tissue (the uterocervix) during cervix cancer radiotherapy. 3D ultrasound (US) can be used to image the uterus, however, finding the position of uterine boundary in US images is a challenging task due to large daily positional and shape changes in the uterus, large variation in bladder filling, and the limitations of 3D US images such as low resolution in the elevational direction and imaging aberrations. Previous studies on uterus segmentation mainly focused on developing semi-automatic algorithms where require manual initialization to be done by an expert clinician. Due to limited studies on the automatic 3D uterus segmentation, the aim of the current study was to overcome the need for manual initialization in the semi-automatic algorithms using the recent deep learning-based algorithms. Therefore, we developed 2D UNet-based networks that are trained based on two scenarios. In the first scenario, we trained 3 different networks on each plane (i.e., sagittal, coronal, axial) individually. In the second scenario, our proposed network was trained using all the planes of each 3D volume. Our proposed schematic can overcome the initial manual selection of previous semi-automatic algorithm.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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