对比度(视觉)
计算机科学
发电机(电路理论)
人工智能
自编码
模态(人机交互)
医学影像学
计算机断层摄影术
图像质量
生成对抗网络
频道(广播)
计算机视觉
图像(数学)
模式识别(心理学)
放射科
深度学习
医学
物理
功率(物理)
量子力学
计算机网络
作者
Jeongho Kim,Yun‐Gyoo Lee,Dongyoung Ko,Taejune Kim,Soo‐Youn Ham,Simon S. Woo
标识
DOI:10.1145/3555776.3578618
摘要
Medical images, including computed tomography (CT) assist doctors and physicians in diagnosing anatomic structures and various internal pathologies. In CT, intravenous contrast media is often applied, which are chemicals developed to aid in the characterization of pathology by enhancing the capabilities of an imaging modality to differentiate between different biological tissues. Especially, with the use of contrast media, thorough examinations of the patients can be possible. However, contrast media can have severe adverse and side effects such as hypersensitive reaction to generalized seizures. Yet, without contrast media, it is difficult to diagnose patients that have disorders in the internal organs. With the help of DNN models, especially generative adversarial network (GAN), contrast-enhanced CT (CECT) images can be synthetically generated from non-contrast CT (NCCT) images. GANs or autoencoder-based models have been proposed to generate contrast-enhanced CT images; however, the synthesized image does not fully reflect and have crucial spots where contrast has not been synthesized. Thus, in order to enhance the quality of the CECT image, we propose MGCMA, a multi-scale generator with a channel-wise mask attention module for generating synthetic CECT images from NCCT images. Our extensive experiments demonstrate that our model outperforms other baseline models in various metrics such as SSIM and LPIPS. Also, generated images from our approach achieve plausible outcomes from the domain experts' (e.g., physicians and radiologists) evaluations.
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