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Integrating high-level semantically correlated contents and low-level anatomical features is of central importance in medical image segmentation. Towards this end, recent deep learning-based medical segmentation methods have shown great…

计算机视觉与模式识别 · 计算机科学 2023-07-19 Chenyu You , Weicheng Dai , Yifei Min , Lawrence Staib , James S. Duncan

Parallel imaging is a commonly used technique to accelerate magnetic resonance imaging (MRI) data acquisition. Mathematically, parallel MRI reconstruction can be formulated as an inverse problem relating the sparsely sampled k-space…

图像与视频处理 · 电气工程与系统科学 2023-11-23 Ruimin Feng , Qing Wu , Jie Feng , Huajun She , Chunlei Liu , Yuyao Zhang , Hongjiang Wei

This study considers modern surgical navigation systems based on augmented reality technologies. Augmented reality glasses are used to construct holograms of the patient's organs from MRI and CT data, subsequently transmitted to the…

Reliable and real-time 3D reconstruction and localization functionality is a crucial prerequisite for the navigation of actively controlled capsule endoscopic robots as an emerging, minimally invasive diagnostic and therapeutic technology…

机器人学 · 计算机科学 2018-03-06 Mehmet Turan , Yasin Almalioglu , Evin Pinar Ornek , Helder Araujo , Mehmet Fatih Yanik , Metin Sitti

Magnetic Resonance Imaging (MRI) is a non-invasive diagnostic and radiotherapy (RT) planning tool, offering detailed insights into the anatomy of the human body. The extensive scan time is stressful for patients, who must remain motionless…

图像与视频处理 · 电气工程与系统科学 2023-11-23 Shahinur Alam , Jinsoo Uh , Alexander Dresner , Chia-ho Hua , Khaled Khairy

Purpose: The expanded encoding model incorporates spatially- and time-varying field perturbations for correction during reconstruction. So far, these reconstructions have used the conjugate gradient method with early stopping used as…

Intraoperative navigation in spine surgery demands millimeter-level accuracy. Currently, this is achieved through radiation-intensive intraoperative imaging and bone-anchored markers that are invasive and disrupt surgical workflow.…

计算机视觉与模式识别 · 计算机科学 2026-05-21 Lorenzo Pettinari , Sidaty El Hadramy , Michael Wehrli , Philippe C. Cattin , Daniel Studer , Carol C. Hasler , Maria Licci

The development of algorithms for automation of subtasks during robotic surgery can be accelerated by the availability of realistic simulation environments. In this work, we focus on one aspect of the realism of a surgical simulator, which…

机器人学 · 计算机科学 2024-06-12 Juan Antonio Barragan , Hisashi Ishida , Adnan Munawar , Peter Kazanzides

Exudative (wet) age-related macular degeneration (AMD) is a leading cause of vision loss in older adults, typically treated with intravitreal injections. Emerging therapies, such as subretinal injections of stem cells, gene therapy, small…

Intra-operative image guidance using magnetic resonance imaging (MRI) can significantly enhance the precision of surgical procedures, such as deep brain tumor ablation. However, the powerful magnetic fields and limited space within an MRI…

机器人学 · 计算机科学 2024-08-19 Zhanyue Zhao , Haimi Tang , Paulo Carvalho , Cosme Furlong , Gregory S. Fischer

Autonomous navigation is crucial for both medical and industrial endoscopic robots, enabling safe and efficient exploration of narrow tubular environments without continuous human intervention, where avoiding contact with the inner walls…

机器人学 · 计算机科学 2026-01-07 Sicong Gao , Chen Qian , Laurence Xian , Liao Wu , Maurice Pagnucco , Yang Song

Magnetic resonance imaging (MRI) is a vital clinical diagnostic tool, yet its application is limited by prolonged scan times. Accelerating MRI reconstruction addresses this issue by reconstructing high-fidelity MR images from undersampled…

计算机视觉与模式识别 · 计算机科学 2025-11-10 Jingran Xu , Yuanyuan Liu , Yuanbiao Yang , Zhuo-Xu Cui , Jing Cheng , Qingyong Zhu , Nannan Zhang , Yihang Zhou , Dong Liang , Yanjie Zhu

Respiratory motion limits the accuracy and precision of abdominal percutaneous procedures. In this paper, respiratory motion is compensated robotically using motion estimation models. Additionally, a teleoperated insertion is performed…

系统与控制 · 电气工程与系统科学 2025-11-27 Ana Cordon-Avila , Mostafa Selim , Momen Abayazid

Super-resolution plays an essential role in medical imaging because it provides an alternative way to achieve high spatial resolutions and image quality with no extra acquisition costs. In the past few decades, the rapid development of deep…

图像与视频处理 · 电气工程与系统科学 2023-03-06 Jin Zhu , Guang Yang , Pietro Lio

Magnetic Resonance Imaging (MRI) is a pivotal clinical diagnostic tool, yet its extended scanning times often compromise patient comfort and image quality, especially in volumetric, temporal and quantitative scans. This review elucidates…

Computed tomography (CT) segmentation models often contain classes that are not currently supported by magnetic resonance imaging (MRI) segmentation models. In this study, we show that a simple image inversion technique can significantly…

图像与视频处理 · 电气工程与系统科学 2025-09-25 Hartmut Häntze , Lina Xu , Maximilian Rattunde , Leonhard Donle , Felix J. Dorfner , Alessa Hering , Lisa C. Adams , Keno K. Bressem

We propose a general strategy for autonomous guidance and insertion of a needle into a retinal blood vessel. The main challenges underpinning this task are the accurate placement of the needle-tip on the target vein and a careful needle…

机器人学 · 计算机科学 2023-06-21 Ji Woong Kim , Peiyao Zhang , Peter Gehlbach , Iulian Iordachita , Marin Kobilarov

Magnetic Resonance Imaging (MRI) is the primary imaging modality used in the diagnosis, assessment, and treatment planning for brain pathologies. However, most automated MRI analysis tools, such as segmentation and registration pipelines,…

Recently, Artificial Intelligence (AI)-based algorithms have revolutionized the medical image segmentation processes. Thus, the precise segmentation of organs and their lesions may contribute to an efficient diagnostics process and a more…

神经元与认知 · 定量生物学 2024-03-21 Zofia Rudnicka , Janusz Szczepanski , Agnieszka Pregowska

Autonomous ultrasound (US) acquisition is an important yet challenging task, as it involves interpretation of the highly complex and variable images and their spatial relationships. In this work, we propose a deep reinforcement learning…

机器人学 · 计算机科学 2024-10-28 Keyu Li , Jian Wang , Yangxin Xu , Hao Qin , Dongsheng Liu , Li Liu , Max Q. -H. Meng