Zobrazeno 1 - 10
of 319
pro vyhledávání: '"Rose, Georg"'
Autor:
Chatterjee, Soumick, Haseljić, Hana, Frysch, Robert, Kulvait, Vojtěch, Semshchikov, Vladimir, Hensen, Bennet, Wacker, Frank, Brüschx, Inga, Werncke, Thomas, Speck, Oliver, Nürnberger, Andreas, Rose, Georg
Publikováno v:
2022 IEEE 5th International Conference on Image Processing Applications and Systems (IPAS)
Perfusion imaging is a valuable tool for diagnosing and treatment planning for liver tumours. The time separation technique (TST) has been successfully used for modelling C-arm cone-beam computed tomography (CBCT) perfusion data. The reconstruction c
Externí odkaz:
http://arxiv.org/abs/2302.04585
Autor:
Haseljić, Hana, Chatterjee, Soumick, Frysch, Robert, Kulvait, Vojtěch, Semshchikov, Vladimir, Hensen, Bennet, Wacker, Frank, Brüsch, Inga, Werncke, Thomas, Speck, Oliver, Nürnberger, Andreas, Rose, Georg
Publikováno v:
Computers in Biology and Medicine (2023) 106539
Model-based reconstruction employing the time separation technique (TST) was found to improve dynamic perfusion imaging of the liver using C-arm cone-beam computed tomography (CBCT). To apply TST using prior knowledge extracted from CT perfusion data
Externí odkaz:
http://arxiv.org/abs/2207.10167
This paper proposes an extension to the Dual Branch Prior-Net for sparse view interventional CBCT reconstruction incorporating a high quality planning scan. An additional head learns to segment interventional instruments and thus guides the reconstru
Externí odkaz:
http://arxiv.org/abs/2205.10353
In this paper, the Primal-Dual UNet for sparse view CT reconstruction is modified to be applicable to cone beam projections and perform reconstructions of entire volumes instead of slices. Experiments show that the PSNR of the proposed method is incr
Externí odkaz:
http://arxiv.org/abs/2205.07866
Magnetic resonance imaging (MRI) provides high spatial resolution and excellent soft-tissue contrast without using harmful ionising radiation. Dynamic MRI is an essential tool for interventions to visualise movements or changes of the target organ. H
Externí odkaz:
http://arxiv.org/abs/2202.05355
Computed tomography and magnetic resonance imaging are two widely used clinical imaging modalities for non-invasive diagnosis. However, both of these modalities come with certain problems. CT uses harmful ionising radiation, and MRI suffers from slow
Externí odkaz:
http://arxiv.org/abs/2112.13443
CT perfusion imaging (CTP) plays an important role in decision making for the treatment of acute ischemic stroke with large vessel occlusion. Since the CT perfusion scan time is approximately one minute, the patient is exposed to a non-negligible dos
Externí odkaz:
http://arxiv.org/abs/2111.01922
Autor:
Haseljić, Hana, Kulvait, Vojtěch, Frysch, Robert, Hensen, Bennet, Wacker, Frank, Rose, Georg, Werncke, Thomas
Publikováno v:
Published in Proceedings of the 16th Virtual International Meeting on Fully 3D Image Reconstruction in Radiology and Nuclear Medicine 2021 arXiv:2110.04143
Perfusion imaging is an interesting new modality for evaluation and assessment of the liver cancer treatment. C-Arm CT provides a possibility to perform perfusion imaging scans intra-operatively for even faster evaluation. The slow speed of the C-Arm
Externí odkaz:
http://arxiv.org/abs/2110.14318
Autor:
Kulvait, Vojtěch, Rose, Georg
Publikováno v:
Published in Proceedings of the 16th Virtual International Meeting on Fully 3D Image Reconstruction in Radiology and Nuclear Medicine 2021 arXiv:2110.04143
Krylov subspace methods are considered a standard tool to solve large systems of linear algebraic equations in many scientific disciplines such as image restoration or solving partial differential equations in mechanics of continuum. In the context o
Externí odkaz:
http://arxiv.org/abs/2110.13526
Autor:
Kulvait, Vojtěch, Rose, Georg
In this paper, we introduce a new class of projectors for 3D cone beam tomographic reconstruction. We find analytical formulas for the relationship between the voxel volume projected onto a given detector pixel and its contribution to the extinction
Externí odkaz:
http://arxiv.org/abs/2110.09841