本文提出了一种新的cect合成框架—ckap-net，用于ncct图像的多器官分割。与现有的在ncct-cect合成中平等对待所有像素的合成方法不同，本文引入了ce-net学习对比度增强知识，以最小化合成图像与真实cect图像之间的对比度增强差距。

2025年2月1日 · Contrast-enhanced computed tomography (CECT) is constantly used for delineating organs-at-risk (OARs) in radiation therapy planning. The delineated OARs are needed to transfer from CECT to non-contrast CT (NCCT) for dose calculation.

2023年4月1日 · Non-contrast CT (NCCT) and contrast-enhanced CT (CECT) are important diagnostic tools with distinct features and applications for chest diseases. We developed two synthesizers for the mutual synthesis of NCCT and CECT and evaluated their applications. Two synthesizers (S 1 and S 2) were proposed based on a generative adversarial network.

2025年2月1日 · We conduct comprehensive experiments on a multi-center clinical dataset, comprising CECT and NCCT scans along with annotations of 13 organs from two medical centers, demonstrating the superior performance of the proposed CKAP-Net framework in synthesizing realistic CECT images for accurate multi-organ segmentation.

A promising solution is synthesizing CECT images from NCCT scans, which can improve the visibility of organs and abnormalities for more effective multi-organ segmentation in NCCT images. However, existing methods neglect the difference between tissues induced by CA and lack the ability to synthesize the details of organ edges and blood vessels.

Contrast-enhanced computed tomography (CECT) is constantly used for delineating organs-at-risk (OARs) in radiation therapy planning. The delineated OARs are needed to transfer from CECT to non-contrast CT (NCCT) for dose calculation. Yet, the use of iodinated contrast agents (CA) in CECT and the dos …

非增强CT（NCCT）和增强CT（CECT）是胸部疾病的重要诊断工具，具有不同的特点和应用。 我们开发了两种合成器用于 NCCT 和 CECT 的相互合成，并评估了它们的应用。 基于生成对抗网络提出了两个合成器（S 1 和 S 2 ）。 S 1 从 NCCT 生成合成 CECT (SynCECT)，S 2 从 CECT 生成合成 NCCT (SynNCCT)。 提出了一种新的合成器训练程序。 最初，合成器使用自监督学习 (SSL) 和双能 CT (DECT) 进行预训练，然后使用配准的 NCCT 和 CECT 图像进行微调。 来自 …

Yet, the use of iodinated contrast agents (CA) in CECT and the dose calculation errors caused by the spatial misalignment between NCCT and CECT images pose risks of adverse side effects. A promising solution is synthesizing CECT images from NCCT scans, which can improve the visibility of organs and abnormalities for more effective multi-organ ...

2023年4月1日 · Non-contrast CT (NCCT) and contrast-enhanced CT (CECT) are important diagnostic tools with distinct features and applications for chest diseases. We developed two synthesizers for the mutual synthesis of NCCT and CECT and evaluated their applications.

Background and objectives: Non-contrast CT (NCCT) and contrast-enhanced CT (CECT) are important diagnostic tools with distinct features and applications for chest diseases. We developed two synthesizers for the mutual synthesis of …