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Automated lesion segmentation from computed tomography (CT) is an important and challenging task in medical image analysis. While many advancements have been made, there is room for continued improvements. One hurdle is that CT images can…

计算机视觉与模式识别 · 计算机科学 2018-07-20 Youbao Tang , Jinzheng Cai , Le Lu , Adam P. Harrison , Ke Yan , Jing Xiao , Lin Yang , Ronald M. Summers

Background: Cone-beam computed tomography (CBCT) scans, performed fractionally (e.g., daily or weekly), are widely utilized for patient alignment in the image-guided radiotherapy (IGRT) process, thereby making it a potential imaging…

Recently, a number of approaches to low-dose computed tomography (CT) have been developed and deployed in commercialized CT scanners. Tube current reduction is perhaps the most actively explored technology with advanced image reconstruction…

医学物理 · 物理学 2018-09-05 Hoyeon Lee , Jongha Lee , Hyeongseok Kim , Byungchul Cho , Seungryong Cho

Computed tomography (CT) is a widely used non-invasive medical imaging technique for disease diagnosis. The diagnostic accuracy is often affected by image resolution, which can be insufficient in practice. For medical CT images, the…

计算机视觉与模式识别 · 计算机科学 2024-05-07 Jiayang Shi , Daniel M. Pelt , K. Joost Batenburg

Current surgical procedures for spinal cord tumors lack in vivo high-resolution, high-speed multifunctional imaging systems, posing challenges for precise tumor resection and intraoperative decision-making. This study introduces the Fast…

Autonomy in robot-assisted minimally invasive surgery has the potential to reduce surgeon cognitive and task load, thereby increasing procedural efficiency. However, implementing accurate autonomous control can be difficult due to poor…

机器人学 · 计算机科学 2026-03-18 Shuyuan Yang , Zonghe Chua

Surgical image segmentation is essential for robot-assisted surgery and intraoperative guidance. However, existing methods are constrained to predefined categories, produce one-shot predictions without adaptive refinement, and lack…

计算机视觉与模式识别 · 计算机科学 2026-02-11 Ange Lou , Yamin Li , Qi Chang , Nan Xi , Luyuan Xie , Zichao Li , Tianyu Luan

Accurate tracking of tissues and instruments in videos is crucial for Robotic-Assisted Minimally Invasive Surgery (RAMIS), as it enables the robot to comprehend the surgical scene with precise locations and interactions of tissues and…

计算机视觉与模式识别 · 计算机科学 2025-03-24 Bohan Zhan , Wang Zhao , Yi Fang , Bo Du , Francisco Vasconcelos , Danail Stoyanov , Daniel S. Elson , Baoru Huang

Purpose Surgical simulations play an increasingly important role in surgeon education and developing algorithms that enable robots to perform surgical subtasks. To model anatomy, Finite Element Method (FEM) simulations have been held as the…

机器人学 · 计算机科学 2020-03-27 Jie Ying Wu , Peter Kazanzides , Mathias Unberath

Intraoperative ultrasound (iUS) imaging has the potential to improve surgical outcomes in brain surgery. However, its interpretation is challenging, even for expert neurosurgeons. In this work, we designed the first patient-specific…

图像与视频处理 · 电气工程与系统科学 2024-05-17 Reuben Dorent , Erickson Torio , Nazim Haouchine , Colin Galvin , Sarah Frisken , Alexandra Golby , Tina Kapur , William Wells

Purpose: There is increasing interest in computed tomography (CT) image estimations from magnetic resonance (MR) images. The estimated CT images can be utilised for attenuation correction, patient positioning, and dose planning in…

统计方法学 · 统计学 2019-04-02 Fekadu L. Bayisa , Xijia Liu , Anders Garpebring , Jun Yu

In computer vision, reference datasets have been highly successful in promoting algorithmic development in stereo reconstruction. Surgical scenes gives rise to specific problems, including the lack of clear corner features, highly specular…

计算机视觉与模式识别 · 计算机科学 2022-02-10 P. J. "Eddie'' Edwards , Dimitris Psychogyios , Stefanie Speidel , Lena Maier-Hein , Danail Stoyanov

Existing medical image super-resolution methods rely on pairs of low- and high- resolution images to learn a mapping in a fully supervised manner. However, such image pairs are often not available in clinical practice. In this paper, we…

图像与视频处理 · 电气工程与系统科学 2021-02-08 Hongwei Li , Rameshwara G. N. Prasad , Anjany Sekuboyina , Chen Niu , Siwei Bai , Werner Hemmert , Bjoern Menze

Purpose: To assess the feasibility of deep learning-based high resolution synthetic CT generation from MRI scans of the lower arm for orthopedic applications. Methods: A conditional Generative Adversarial Network was trained to synthesize…

Purpose: Intra-Cardiac Echocardiography (ICE) is a powerful imaging modality for guiding cardiac electrophysiology and structural heart interventions. ICE provides real-time observation of anatomy and devices, while enabling direct…

机器人学 · 计算机科学 2022-01-25 Young-Ho Kim , Jarrod Collins , Zhongyu Li , Ponraj Chinnadurai , Ankur Kapoor , C. Huie Lin , Tommaso Mansi

Purpose: Image guidance is crucial for the success of many interventions. Images are displayed on designated monitors that cannot be positioned optimally due to sterility and spatial constraints. This indirect visualization causes potential…

其他计算机科学 · 计算机科学 2017-10-03 Long Qian , Mathias Unberath , Kevin Yu , Bernhard Fuerst , Alex Johnson , Nassir Navab , Greg Osgood

We describe a visual computing approach to radiation therapy (RT) planning, based on spatial similarity within a patient cohort. In radiotherapy for head and neck cancer treatment, dosage to organs at risk surrounding a tumor is a large…

Modeling and recognition of surgical activities poses an interesting research problem. Although a number of recent works studied automatic recognition of surgical activities, generalizability of these works across different tasks and…

计算机视觉与模式识别 · 计算机科学 2020-08-17 Duygu Sarikaya , Pierre Jannin

Computed tomography (CT) reconstruction plays a crucial role in industrial nondestructive testing and medical diagnosis. Sparse view CT reconstruction aims to reconstruct high-quality CT images while only using a small number of…

图像与视频处理 · 电气工程与系统科学 2024-09-12 Wangduo Xie , Richard Schoonhoven , Tristan van Leeuwen , Matthew B. Blaschko

Surgical phase segmentation is central to computer-assisted surgery, yet robust models remain difficult to develop when labeled surgical videos are scarce. We study data-efficient phase segmentation for manual small-incision cataract…

计算机视觉与模式识别 · 计算机科学 2026-04-14 Lincoln Spencer , Song Wang , Chen Chen