Zobrazeno 1 - 10
of 16 253
pro vyhledávání: '"contrast enhancement."'
Autor:
Soumyajit Saha, Somnath Chatterjee, Shibaprasad Sen, Diego Oliva, Marco Perez-Cisneros, Ram Sarkar
Publikováno v:
Automatika, Vol 65, Iss 4, Pp 1545-1557 (2024)
Contrast enhancement aims to amplify the visual quality of images by modifying the contrast level because digital images may get distorted by casual acquisition. The article deals with contrast enhancement as an optimization problem and uses the Drag
Externí odkaz:
https://doaj.org/article/485a92237afe448b83bfa1e4b59ad679
Publikováno v:
Journal of Men's Health, Vol 20, Iss 9, Pp 95-102 (2024)
This study investigates the efficacy of the Prostate Imaging Reporting and Data System version 2.1 (PI-RADS v2.1) score combined with quantitative metrics from Diffusion Weighted Imaging (DWI) and Dynamic Contrast Enhancement Magnetic Resonance Imagi
Externí odkaz:
https://doaj.org/article/d4cd6d1c672c417ea82efea5a6951d45
Autor:
Igor E. Khatkov, Konstantin A. Lesko, Elena A. Dubtsova, Sergey G. Khomeriki, Nikolay S. Karnaukhov, Ludmila V. Vinokurova, Elena I. Shurygina, Nadezhda V. Makarenko, Roman E. Izrailov, Irina V. Savina, Diana A. Salimgereeva, Mariia A. Kiriukova, Dmitry S. Bordin
Publikováno v:
Терапевтический архив, Vol 96, Iss 8, Pp 780-789 (2024)
Aim. To evaluate the possibilities of post-processing of multidetector computed tomography (CT) results in the non-invasive diagnosis of pancreatic fibrosis (PF). Materials and methods. The study included 165 patients aged 57.91±13.5 years who un
Externí odkaz:
https://doaj.org/article/494b177009e9411bb63c505c27c7ac18
Autor:
R. F. Valenzuela, E. Duran-Sierra, M. Canjirathinkal, B. Amini, K. E. Torres, R. S. Benjamin, J. Ma, W. L. Wang, K. P. Hwang, R. J. Stafford, C. Wu, A. M. Zarzour, A. J. Bishop, S. Lo, J. E. Madewell, R. Kumar, W. A. Murphy, C. M. Costelloe
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-15 (2024)
Abstract Undifferentiated pleomorphic sarcoma (UPS) is the largest subgroup of soft tissue sarcomas. This study determined the value of perfusion-weighted imaging with dynamic-contrast-enhancement (PWI/DCE) morphologic, qualitative, and semiquantitat
Externí odkaz:
https://doaj.org/article/a0f35bddee9a4e199ffc8642639f2740
Autor:
Eric V. Li, Sai K. Kumar, Jonathan A. Aguiar, Mohammad R. Siddiqui, Clayton Neill, Zequn Sun, Edward M. Schaeffer, Anugayathri Jawahar, Ashley E. Ross, Hiten D. Patel
Publikováno v:
BJUI Compass, Vol 5, Iss 9, Pp 865-873 (2024)
Abstract Objective This study aimed to evaluate the association of dynamic contrast enhancement (DCE) with clinically significant prostate cancer (csPCa, Gleason Grade Group ≥2) and compare biparametric magnetic resonance imaging (bpMRI) and multip
Externí odkaz:
https://doaj.org/article/01b7e5c211b741d081f7b21090af0298
Publikováno v:
Current Directions in Biomedical Engineering, Vol 10, Iss 2, Pp 83-86 (2024)
Digital radiography in medicine is a widely used imaging method for obtaining visual information about the inside of a body. To prepare the acquired raw image for diagnostic evaluation, the contrast must be adjusted depending on the examined part of
Externí odkaz:
https://doaj.org/article/4faf5f9a71454fd5bd5e134b59726e83
Autor:
Marina V. Dreval, Andrey S. Mazur, Giunel Kh. Aslanova, Alexey А. Poyda, Vyacheslav A. Orlov, Sergey I. Kartashov, Marina V. Krotenkova, Marine M. Tanashyan
Publikováno v:
Alʹmanah Kliničeskoj Mediciny, Vol 52, Iss 2, Pp 85-94 (2024)
Background: Breakthrough neurotechnologies have allowed for new understanding of some brain disorders; however, identification and differential diagnosis of intracranial stenotic and occlusive lesions remains challenging. Magnetic resonance imaging (
Externí odkaz:
https://doaj.org/article/cc1938683a554293b98811e4f11bb205
Autor:
Anna Krämer, Laura Hahnemann, Fabian Schunn, Christoph A. Grott, Michael Thomas, Petros Christopoulos, Jonathan W. Lischalk, Juliane Hörner-Rieber, Philipp Hoegen-Saßmannshausen, Tanja Eichkorn, Maximilian Y. Deng, Eva Meixner, Kristin Lang, Angela Paul, Fabian Weykamp, Jürgen Debus, Laila König
Publikováno v:
Clinical and Translational Radiation Oncology, Vol 50, Iss , Pp 100893- (2025)
Introduction: Brain metastases (BM) are the most common malignancy in the central nervous system (CNS) and observed in approximately 30% of cancer patients. Brainstem metastases (BSM) are challenging because of their location and the associated neuro
Externí odkaz:
https://doaj.org/article/53399c18ccf8408292eb91401f4c670b
Autor:
Jesline Jeme V, Albert Jerome S
Publikováno v:
Computer Methods in Biomechanics and Biomedical Engineering: Imaging & Visualization, Vol 12, Iss 1 (2024)
Anatomical structure preservation throughout the denoising process is a challenge in the domain of medical imaging. The Rician noise introduced through the acquisition procedure by the Magnetic Resonance Imaging (MRI) scanner distorts the images. In
Externí odkaz:
https://doaj.org/article/67d85569650647718d08a658ab907f25
Publikováno v:
Magnetic Resonance Letters, Vol 4, Iss 4, Pp 200134- (2024)
This work aims to develop fast T1 mapping methods for preclinical and clinical scanners based on subspace-constrained reconstructions. Two sequences are explored for rapid T1 characterizations: 1) Interleaved spatiotemporal encoding incorporating var
Externí odkaz:
https://doaj.org/article/4f1d040f8aa24ba8a6ca802047ef82e3