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Multi-modality imaging hardware can be integrated in a single gantry to collect diverse datasets for complementary information and spatiotemporal correlation, with excellent examples including PET-CT and PET-MRI. However, there is no CT-MRI…

医学物理 · 物理学 2022-03-31 Yuting Peng , Mengzhou Li , Jace Grandinetti , Ge Wang , Xun Jia

In the field of radiotherapy, accurate imaging and image registration are of utmost importance for precise treatment planning. Magnetic Resonance Imaging (MRI) offers detailed imaging without being invasive and excels in soft-tissue…

图像与视频处理 · 电气工程与系统科学 2023-11-29 Saba Nikbakhsh , Lachin Naghashyar , Morteza Valizadeh , Mehdi Chehel Amirani

While micro-CT systems are instrumental in preclinical research, clinical micro-CT imaging has long been desired with cochlear implantation as a primary example. The structural details of the cochlear implant and the temporal bone require a…

Accurate synthesis of computed tomography (CT) images from magnetic resonance imaging (MRI) is clinically valuable for cranial applications such as attenuation correction, radiotherapy planning, and image-guided interventions. However,…

图像与视频处理 · 电气工程与系统科学 2026-05-05 Zhuoyao Xin , Yiren Zhang , Christopher Wu , Dong Liu , Chunming Gu , Elena Greco , Erik H. Middlebrooks , Jun Hua , Jia Guo

This paper presents the design and experimental characterization of a 1 T electromagnet tailored to meet the demands of a Magnetic Resonance Imaging (MRI) system conceived for spatial resolutions at the level of tens of microns. For high…

Access to and availability of MRI scanners is typically limited by their cost, siting and infrastructure requirements. This precludes MRI diagnostics, the reference standard for neurological assessment, in patients who cannot be transported…

With the increasing complexity of external beam therapy, so-called "end-to-end" tests are intended to cover all steps from therapy planning to follow-up to fulfill the high demands on quality assurance. As magnetic resonance imaging (MRI)…

Compressed sensing magnetic resonance imaging (CS-MRI) is a theoretical framework that can accurately reconstruct images from undersampled k-space data with a much lower sampling rate than the one set by the classical Nyquist-Shannon…

医学物理 · 物理学 2020-05-19 Maosong Ran , Wenjun Xia , Yongqiang Huang , Zexin Lu , Peng Bao , Yan Liu , Huaiqiang Sun , Jiliu Zhou , Yi Zhang

Computed tomography (CT) can provide a 3D view of the patient's internal organs, facilitating disease diagnosis, but it incurs more radiation dose to a patient and a CT scanner is much more cost prohibitive than an X-ray machine too.…

图像与视频处理 · 电气工程与系统科学 2019-05-17 Xingde Ying , Heng Guo , Kai Ma , Jian Wu , Zhengxin Weng , Yefeng Zheng

Magnetic Resonance (MR) Imaging and Computed Tomography (CT) are the primary diagnostic imaging modalities quite frequently used for surgical planning and analysis. A general problem with medical imaging is that the acquisition process is…

图像与视频处理 · 电气工程与系统科学 2020-06-08 Vismay Agrawal , Avinash Kori , Vikas Kumar Anand , Ganapathy Krishnamurthi

Portable low-cost MRI systems have the potential to enable point-of-care and timely MRI diagnosis, and to make this imaging modality available to routine scans and to underdeveloped areas. With simplicity, no maintenance, no power…

医学物理 · 物理学 2018-12-31 Shao Ying Huang , Zhi Hua Ren , Sergei Obruchkov , Jia Gong , Robin Dykstra , Wenwei Yu

Magnetic resonance imaging (MRI) revolutionized diagnostic medicine and biomedical research by allowing a noninvasive access to spin ensembles. To enhance MRI resolution to the nanometer scale, new approaches including scanning probe…

介观与纳米尺度物理 · 物理学 2019-10-23 Philip Willke , Kai Yang , Yujeong Bae , Andreas J. Heinrich , Christopher P. Lutz

Synthetic CT image generation from MRI scan is necessary to create radiotherapy plans without the need of co-registered MRI and CT scans. The chosen baseline adversarial model with cycle consistency permits unpaired image-to-image…

图像与视频处理 · 电气工程与系统科学 2023-08-16 Denis Prokopenko , Joël Valentin Stadelmann , Heinrich Schulz , Steffen Renisch , Dmitry V. Dylov

Computerized tomography (CT) has been used for decades by medical professionals to detect and diagnose injuries and ailments. CT scanners are based on interesting physics, but due to their bulk, cost, and safety, hands on experience with a…

物理教育 · 物理学 2021-01-28 Vincent Daley , Owen Paetkau , Mark Paetkau

Foundation models (FMs) have shown transformative potential in radiology by performing diverse, complex tasks across imaging modalities. Here, we developed CT-FM, a large-scale 3D image-based pre-trained model designed explicitly for…

图像与视频处理 · 电气工程与系统科学 2025-02-27 Suraj Pai , Ibrahim Hadzic , Dennis Bontempi , Keno Bressem , Benjamin H. Kann , Andriy Fedorov , Raymond H. Mak , Hugo J. W. L. Aerts

Over almost five decades of development and improvement, Magnetic Resonance Imaging (MRI) has become a rich and powerful, non-invasive technique in medical imaging, yet not reaching its physical limits. Technical and physiological…

Very-low-field MRIs are becoming increasingly popular due to their portability and adaptability to different environments. They are being successfully used for various clinical applications, leading to a paradigm shift in the way imaging…

计算工程、金融与科学 · 计算机科学 2025-12-24 Umberto Zanovello , Alessandro Arduino , Vittorio Basso , Luca Zilberti , Alessandro Sola , Andrea Agosto , Luca Toso , Oriano Bottauscio

In Magnetic Particle Imaging, a field-free region is maneuvered throughout the field of view using a time-varying magnetic field known as the drive-field. Human-sized systems operate the drive-field in the kHz range and generate it by…

信号处理 · 电气工程与系统科学 2024-04-10 Fabian Mohn , Fynn Förger , Florian Thieben , Martin Möddel , Ingo Schmale , Tobias Knopp , Matthias Graeser

Computed Tomography (CT) scans provide detailed and accurate information of internal structures in the body. They are constructed by sending x-rays through the body from different directions and combining this information into a…

图像与视频处理 · 电气工程与系统科学 2023-05-12 Firas Khader , Gustav Müller-Franzes , Tianyu Han , Sven Nebelung , Christiane Kuhl , Johannes Stegmaier , Daniel Truhn

Magnetic Resonance Imaging (MRI) is crucial in global healthcare, but the traditional receive coils, as a core component of MRI, SNR enhancement is limited due to the optimization of channel number and magnetic field strength faces high…

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