Zobrazeno 1 - 10
of 389
pro vyhledávání: '"image quality enhancement"'
Autor:
Salman Jafari, Sohrab Kolivand
Publikováno v:
Journal of Biomedical Physics and Engineering, Vol 14, Iss 4, Pp 379-388 (2024)
Background: High-quality images with minimum radiation dose are considered a challenge in Computed Tomography (CT) scans.Objective: The current study aimed to assess the efficacy of the Iterative Reconstruction in Image Space (IRIS) algorithm combine
Externí odkaz:
https://doaj.org/article/6521b4b6112948ca93c009cbde35ea6a
Autor:
Hyunji Cho, Hoon Yoo
Publikováno v:
Applied Sciences, Vol 14, Iss 13, p 5384 (2024)
This paper introduces an enhancement technique for three-dimensional computational integral imaging by utilizing a post-processing method. Despite the advantages of computational integral imaging systems, the image quality of the systems can suffer f
Externí odkaz:
https://doaj.org/article/adedc5ecc3eb40b6a73b108f2bc633e8
Autor:
Na-Hyun Kim, Byoung-Eun Yang, Sam-Hee Kang, Young-Hee Kim, Ji-Yeon Na, Jo-Eun Kim, Soo-Hwan Byun
Publikováno v:
Bioengineering, Vol 11, Iss 6, p 576 (2024)
This study assessed AI-processed low-dose cone-beam computed tomography (CBCT) images for single-tooth diagnosis. Human-equivalent phantoms were used to evaluate CBCT image quality with a focus on the right mandibular first molar. Two CBCT machines w
Externí odkaz:
https://doaj.org/article/bf05b2166bb94be7b9158ae955241316
Autor:
Choirul Anam, Riska Amilia, Ariij Naufal, Heri Sutanto, Yanurita Dwihapsari, Toshioh Fujibuchi, Geoff Dougherty
Publikováno v:
Journal of Biomedical Physics and Engineering, Vol 13, Iss 4, Pp 353-362 (2023)
Background: Methods for segmentation, i.e., Full-segmentation (FS) and Segmentation-rotation (SR), are proposed for maintaining Computed Tomography (CT) number linearity. However, their effectiveness has not yet been tested against noise.Objective: T
Externí odkaz:
https://doaj.org/article/7c2444a89c6d4746aeebd301568c5c7f
Adaptation of Deep Learning Image Reconstruction for Pediatric Head CT: A Focus on the Image Quality
Publikováno v:
Journal of the Korean Society of Radiology, Vol 84, Iss 1, Pp 240-252 (2023)
Purpose To assess the effect of deep learning image reconstruction (DLIR) for head CT in pediatric patients. Materials and Methods We collected 126 pediatric head CT images, which were reconstructed using filtered back projection, iterative recons
Externí odkaz:
https://doaj.org/article/1276c4212aa642e89518f0ed2e1e950c
Autor:
Razieh Solgi, Hossein Ghadiri
Publikováno v:
Journal of Biomedical Physics and Engineering, Vol 12, Iss 4, Pp 349-358 (2022)
Background: In body tissues, tumors generally have different speeds of sound (SOS) than normal tissues. In this respect, ultrasound computed tomography (UCT) can generate a cross-sectional SOS map as an innovative ultrasound imaging method. This tech
Externí odkaz:
https://doaj.org/article/2a1670d22d454a7382ff578e7e24f68b
Autor:
Boyang Pan, Na Qi, Qingyuan Meng, Jiachen Wang, Siyue Peng, Chengxiao Qi, Nan-Jie Gong, Jun Zhao
Publikováno v:
EJNMMI Physics, Vol 9, Iss 1, Pp 1-15 (2022)
Abstract Background To generate high-quality bone scan SPECT images from only 1/7 scan time SPECT images using deep learning-based enhancement method. Materials and methods Normal-dose (925–1110 MBq) clinical technetium 99 m-methyl diphosphonate (9
Externí odkaz:
https://doaj.org/article/934d1084dd4447a4ad6337acf8fc3de1
Autor:
Andreas S. Brendlin, Ulrich Schmid, David Plajer, Maryanna Chaika, Markus Mader, Robin Wrazidlo, Simon Männlin, Jakob Spogis, Arne Estler, Michael Esser, Jürgen Schäfer, Saif Afat, Ilias Tsiflikas
Publikováno v:
Tomography, Vol 8, Iss 4, Pp 1678-1689 (2022)
(1) This study evaluates the impact of an AI denoising algorithm on image quality, diagnostic accuracy, and radiological workflows in pediatric chest ultra-low-dose CT (ULDCT). (2) Methods: 100 consecutive pediatric thorax ULDCT were included and rec
Externí odkaz:
https://doaj.org/article/376a023a1481486caafb39da0e694a0c
Autor:
Andreas S. Brendlin, Arne Estler, David Plajer, Adrian Lutz, Gerd Grözinger, Malte N. Bongers, Ilias Tsiflikas, Saif Afat, Christoph P. Artzner
Publikováno v:
Tomography, Vol 8, Iss 2, Pp 933-947 (2022)
(1) To investigate whether interventional cone-beam computed tomography (cbCT) could benefit from AI denoising, particularly with respect to patient body mass index (BMI); (2) From 1 January 2016 to 1 January 2022, 100 patients with liver-directed in
Externí odkaz:
https://doaj.org/article/a4feae00cd424cb3836984217cb00c36
Publikováno v:
Drones, Vol 7, Iss 11, p 657 (2023)
Unmanned aerial vehicles (UAVs) have been increasingly utilized for facility safety inspections due to their superior safety, cost effectiveness, and inspection accuracy compared to traditional manpower-based methods. High-resolution images captured
Externí odkaz:
https://doaj.org/article/e2b55c059b4d4baa8442e8f840ac50d0