CACTUSS: Common Anatomical CT-US Space for US examinations
Yordanka Velikova, Walter Simson, Mehrdad Salehi, Mohammad Farid, Azampour, Philipp Paprottka, Nassir Navab

TL;DR
CACTUSS introduces a novel common anatomical space bridging CT and US imaging, enabling improved automatic ultrasound screening for abdominal aortic aneurysm by leveraging deep learning and intermediary representations.
Contribution
It proposes a new CT-US common space and a segmentation framework that enhances ultrasound AAA diagnosis using knowledge from CT data and deep learning techniques.
Findings
Achieves high Dice scores comparable to supervised methods
Meets clinical diagnostic requirements for AAA screening
Demonstrates effective cross-modality segmentation performance
Abstract
Abdominal aortic aneurysm (AAA) is a vascular disease in which a section of the aorta enlarges, weakening its walls and potentially rupturing the vessel. Abdominal ultrasound has been utilized for diagnostics, but due to its limited image quality and operator dependency, CT scans are usually required for monitoring and treatment planning. Recently, abdominal CT datasets have been successfully utilized to train deep neural networks for automatic aorta segmentation. Knowledge gathered from this solved task could therefore be leveraged to improve US segmentation for AAA diagnosis and monitoring. To this end, we propose CACTUSS: a common anatomical CT-US space, which acts as a virtual bridge between CT and US modalities to enable automatic AAA screening sonography. CACTUSS makes use of publicly available labelled data to learn to segment based on an intermediary representation that inherits…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Code & Models
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsAortic aneurysm repair treatments · Advanced X-ray and CT Imaging · Cardiac, Anesthesia and Surgical Outcomes
