Results 11 to 20 of about 2,976,436 (174)

Perfusion assessment via local remote photoplethysmography (rPPG) [PDF]

2022 IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), 2022
This paper presents an approach to assess the perfusion of visible human tissue from RGB video files. We propose metrics derived from remote photoplethysmography (rPPG) signals to detect whether a tissue is adequately supplied with blood. The perfusion analysis is done in three different scales, offering a flexible approach for different applications ...
arxiv   +1 more source

Perfusion imaging in deep prostate cancer detection from mp-MRI: can we take advantage of it? [PDF]

19th IEEE International Symposium on Biomedical Imaging (ISBI), Mar 2022, Kolkata, India. pp.1-5, 2022
To our knowledge, all deep computer-aided detection and diagnosis (CAD) systems for prostate cancer (PCa) detection consider bi-parametric magnetic resonance imaging (bp-MRI) only, including T2w and ADC sequences while excluding the 4D perfusion sequence,which is however part of standard clinical protocols for this diagnostic task.
arxiv   +1 more source

Liver Segmentation in Time-resolved C-arm CT Volumes Reconstructed from Dynamic Perfusion Scans using Time Separation Technique [PDF]

2022 IEEE 5th International Conference on Image Processing Applications and Systems (IPAS), 2023
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 can be accompanied by the segmentation of the liver - for better visualisation and for generating ...
arxiv   +1 more source

Liver Segmentation using Turbolift Learning for CT and Cone-beam C-arm Perfusion Imaging [PDF]

Computers in Biology and Medicine (2023) 106539, 2022
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, the liver should be accurately segmented from the CT scans. Reconstructions of primary and model-based
arxiv   +1 more source

Real‐time laser speckle contrast imaging measurement during normothermic machine perfusion in pretransplant kidney assessment

Lasers in Surgery and Medicine, 2023
Normothermic machine perfusion (NMP) provides a platform for pre‐transplant kidney quality assessment that is essential for the use of marginal donor kidneys.
Yitian Fang, Lisanne van Ooijen, G. Ambagtsheer, Anton V. Nikolaev, M. C. Clahsen‐van Groningen, J. Dankelman, R. D. de Bruin, R. Minnee   +7 more
semanticscholar   +1 more source

Normothermic Machine Perfusion for Older Transplant Recipients.

Artificial Organs, 2023
INTRODUCTION Elderly patients (≥ 65 years old) are increasingly undergoing liver transplantation and are more likely to be removed from the waitlist.
Andrew D Shubin, Cyrus A. Feizpour, C. Hwang, S. Hanish, N. Raschzok, Benjamin K. Wang, D. Desai, J. Shah, P. Vagefi, M. MacConmara, Madhukar S. Patel   +10 more
semanticscholar   +1 more source

The Current Role and Future Applications of Machine Perfusion in Liver Transplantation

Bioengineering, 2023
The relative paucity of donor livers suitable for transplantation has sparked innovations to preserve and recondition organs to expand the pool of transplantable organs.
S. Staubli, C. Ceresa, J. Pollok
semanticscholar   +1 more source

Hypothermic Machine Perfusion in Liver Transplantation - A Randomized Trial.

New England Journal of Medicine, 2021
BACKGROUND Transplantation of livers obtained from donors after circulatory death is associated with an increased risk of nonanastomotic biliary strictures.
R. van Rijn, Ivo J. Schurink, Y. de Vries, A. P. van den Berg, M. Cortés Cerisuelo, S. Darwish Murad, J. Erdmann, N. Gilbo, R. D. de Haas, N. Heaton, B. van Hoek, V. Huurman, I. Jochmans, O. B. van Leeuwen, V. D. de Meijer, D. Monbaliu, W. Polak, J. Slangen, R. Troisi, A. Vanlander, J. de Jonge, R. Porte   +21 more
semanticscholar   +1 more source

48 h Normothermic Machine Perfusion With Urine Recirculation for Discarded Human Kidney Grafts

Transplant International, 2023
Normothermic machine perfusion (NMP) has reshaped organ preservation in recent years. In this preclinical study, prolonged normothermic perfusions of discarded human kidney grafts were performed in order to investigate perfusion dynamics and identify ...
F. Messner, A. Soleiman, D. Öfner, Hannes Neuwirt, S. Schneeberger, A. Weissenbacher   +5 more
semanticscholar   +1 more source

Towards Optimizing Sub-Normothermic Machine Perfusion in Fasciocutaneous Flaps: A Large Animal Study

Bioengineering, 2023
Machine perfusion has developed rapidly since its first use in solid organ transplantation. Likewise, reconstructive surgery has kept pace, and ex vivo perfusion appears as a new trend in vascularized composite allotransplants preservation. In autologous
Y. Berkane, A. Lellouch, Guillaume Goudot, Austin A. Shamlou, I. Filz von Reiterdank, M. Goutard, P. Tawa, Paul Girard, Nicolas Bertheuil, B. Uygun, Mark A. Randolph, J. Duisit, C. Cetrulo, K. Uygun   +13 more
semanticscholar   +1 more source