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Deep learning based approaches have been used to improve image quality in cone-beam computed tomography (CBCT), a medical imaging technique often used in applications such as image-guided radiation therapy, implant dentistry or…

计算机视觉与模式识别 · 计算机科学 2024-03-28 Mohammadreza Amirian , Daniel Barco , Ivo Herzig , Frank-Peter Schilling

Shortened Abstract Cone-beam computed tomography (CBCT) has become a widely adopted modality for image-guided radiotherapy (IGRT). However, CBCT suffers from increased noise, limited soft-tissue contrast, and artifacts, resulting in…

医学物理 · 物理学 2025-06-11 Ciro Benito Raggio , Paolo Zaffino , Maria Francesca Spadea

Cone-beam computed tomography (CBCT) is an important tool facilitating computer aided interventions, despite often suffering from artifacts that pose challenges for accurate interpretation. While the degraded image quality can affect…

图像与视频处理 · 电气工程与系统科学 2024-07-02 Maximilian E. Tschuchnig , Philipp Steininger , Michael Gadermayr

Cone-beam computed tomography (CBCT) offers advantages over conventional fan-beam CT in that it requires a shorter time and less exposure to obtain images. CBCT has found a wide variety of applications in patient positioning for…

计算机视觉与模式识别 · 计算机科学 2020-07-01 S. Kida , S. Kaji , K. Nawa , T. Imae , T. Nakamoto , S. Ozaki , T. Ohta , Y. Nozawa , K. Nakagawa

Cone-beam computed tomography (CBCT) images are problematic in clinical medicine because of their low contrast and high artifact content compared with conventional CT images. Although there are some studies to improve image quality, in…

图像与视频处理 · 电气工程与系统科学 2026-03-30 Naruki Murahashi , Mitsuhiro Nakamura , Megumi Nakao

The generation of synthetic CT (sCT) images from cone-beam CT (CBCT) data using deep learning methodologies represents a significant advancement in radiation oncology. This systematic review, following PRISMA guidelines and using the PICO…

图像与视频处理 · 电气工程与系统科学 2025-01-27 Alzahra Altalib , Scott McGregor , Chunhui Li , Alessandro Perelli

The purpose of this study is to develop a deep learning based method that can automatically generate segmentations on cone-beam CT (CBCT) for head and neck online adaptive radiation therapy (ART), where expert-drawn contours in planning CT…

医学物理 · 物理学 2021-02-02 Xiao Liang , Howard Morgan , Dan Nguyen , Steve Jiang

Cone Beam Computed Tomography (CBCT) is widely used in dentistry for diagnostics and treatment planning. CBCT Imaging has a long acquisition time and consequently, the patient is likely to move. This motion causes significant artifacts in…

计算机视觉与模式识别 · 计算机科学 2023-04-21 Abdul Salam Rasmi Asraf Ali , Andrea Fusiello , Claudio Landi , Cristina Sarti , Anneke Annassia Putri Siswadi

Cone-Beam Computed Tomography (CBCT) is widely used for real-time intraoperative imaging due to its low radiation dose and high acquisition speed. However, despite its high resolution, CBCT suffers from significant artifacts and thereby…

图像与视频处理 · 电气工程与系统科学 2025-06-11 Maximilian Tschuchnig , Lukas Lamminger , Philipp Steininger , Michael Gadermayr

Cone beam computed tomography (CBCT)-guided puncture has become an established approach for diagnosing and treating early- to mid-stage thoracic tumours, yet the associated radiation exposure substantially elevates the risk of secondary…

Cone-beam computed tomography (CBCT) using only a few X-ray projection views enables faster scans with lower radiation dose, but the resulting severe under-sampling causes strong artifacts and poor spatial coverage. We address these…

图像与视频处理 · 电气工程与系统科学 2025-06-25 Minmin Yang , Huantao Ren , Senem Velipasalar

Cone-beam computed tomography (CBCT) is widely used in interventional surgeries and radiation oncology. Due to the limited size of flat-panel detectors, anatomical structures might be missing outside the limited field-of-view (FOV), which…

计算机视觉与模式识别 · 计算机科学 2024-09-16 Yixing Huang , Fuxin Fan , Ahmed Gomaa , Andreas Maier , Rainer Fietkau , Christoph Bert , Florian Putz

Medical imaging is vital in computer assisted intervention. Particularly cone beam computed tomography (CBCT) with defacto real time and mobility capabilities plays an important role. However, CBCT images often suffer from artifacts, which…

计算机视觉与模式识别 · 计算机科学 2024-07-23 Maximilian E. Tschuchnig , Philipp Steininger , Michael Gadermayr

Cone-beam computed tomography (CBCT) typically requires hundreds of X-ray projections, which raises concerns about radiation exposure. While sparse-view reconstruction reduces the exposure by using fewer projections, it struggles to achieve…

图像与视频处理 · 电气工程与系统科学 2024-11-05 Meng-Xun Li , Jin-Gang Yu , Yuan Gao , Cui Huang , Gui-Song Xia

The purpose of this work is to provide a fast and accurate scatter artifacts correction algorithm for cone beam CT (CBCT) imaging. The method starts with an estimation of coarse scatter profiles for a set of CBCT data in either image domain…

医学物理 · 物理学 2016-04-27 Wei Zhao , Don Vernekohl , Jun Zhu , Luyao Wang , Lei Xing

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…

X-ray imaging dose from serial cone-beam CT (CBCT) scans raises a clinical concern in most image guided radiation therapy procedures. It is the goal of this paper to develop a fast GPU-based algorithm to reconstruct high quality CBCT images…

医学物理 · 物理学 2015-05-19 Xun Jia , Bin Dong , Yifei Lou , Steve B. Jiang

Metal artifacts in computed tomography (CT) arise from a mismatch between physics of image formation and idealized assumptions during tomographic reconstruction. These artifacts are particularly strong around metal implants, inhibiting…

图像与视频处理 · 电气工程与系统科学 2019-09-20 Jan-Nico Zaech , Cong Gao , Bastian Bier , Russell Taylor , Andreas Maier , Nassir Navab , Mathias Unberath

High quality reconstruction with interventional C-arm cone-beam computed tomography (CBCT) requires exact geometry information. If the geometry information is corrupted, e. g., by unexpected patient or system movement, the measured signal…

Cone-Beam Computed Tomography (CBCT) is widely used for intraoperative imaging due to its rapid acquisition and low radiation dose. However, CBCT images typically suffer from artifacts and lower visual quality compared to conventional…

图像与视频处理 · 电气工程与系统科学 2025-07-09 Maximilian Tschuchnig , Lukas Lamminger , Philipp Steininger , Michael Gadermayr
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