Zobrazeno 1 - 10
of 633
pro vyhledávání: '"A. Kamali-Asl"'
In the first step, a pre-trained model (YOLO) was used to detect all suspicious nod-ules. The YOLO model was re-trained using 397 CT images to detect the entire nodule in CT images. To maximize the sensitivity of the model, a confidence level (the pr
Externí odkaz:
http://arxiv.org/abs/2212.09366
Autor:
Azimi, Mohammad-Saber, Kamali-Asl, Alireza, Ay, Mohammad-Reza, Zeraatkar, Navid, Arabi, Hossein
A standard dose of radioactive tracer must be delivered into the patients body to obtain high-quality Positron Emission Tomography (PET) images for diagnostic purposes, which raises the risk of radiation harm. A reduced tracer dose, on the other hand
Externí odkaz:
http://arxiv.org/abs/2207.02553
Attenuation and scatter correction (AC) is crucial for quantitative Positron Emission Tomography (PET) imaging. Recently, direct application of AC in the image domain using deep learning approaches has been proposed for the hybrid PET/MR and dedicate
Externí odkaz:
http://arxiv.org/abs/2206.14673
Autor:
Samimi, Rezvan, Kamali-Asl, Alireza, Ahmadyar, Yashar, van den Hoff, Jörg, Geramifar, Parham, Rahmim, Arman
Publikováno v:
In Physica Medica May 2024 121
Autor:
Lohrabian, Vahid, Kamali-Asl, Alireza, Arabi, Hossein, Hemmati, Hamidreza, Esfahani, Majid Pournezam
In this study, recommendations of the AAPM TG- 43 (U1) report have been followed to characterize the new 192Ir pulse dose rate source, provided by the Applied Radiation Research School, Nuclear Science and Technology Research Institute in Iran. Dose
Externí odkaz:
http://arxiv.org/abs/2102.05953
Autor:
Lohrabian, Vahid, Kamali-Asl, Alireza, Harvani, Hossein Ghadiri, Aghdam, Seyed Rashid Hosseini, Arabi, Hossein
The aim of this study is to estimate the intrinsic efficiency and energy resolution of different types of solid-state gamma-ray detectors in order to generate a precise dual-energy x-ray beam from the conventional x-ray tube using external x-ray filt
Externí odkaz:
http://arxiv.org/abs/2102.05760
Autor:
Azimi, MohammadSaber, Kamali-Asl, Alireza, Ay, Mohammad-Reza, Zeraatkar, Navid, Hosseini, Mahboube-Sadat, Sanaat, Amirhossein, Arabi, Hossein
Publikováno v:
In Physica Medica March 2024 119
Autor:
Rezvan Samimi, Isaac Shiri, Yashar Ahmadyar, Jörg van den Hoff, Alireza Kamali-Asl, Alireza Rezaee, Fereshteh Yousefirizi, Parham Geramifar, Arman Rahmim
Publikováno v:
EJNMMI Research, Vol 13, Iss 1, Pp 1-13 (2023)
Abstract Background To investigate the use of dynamic radiomics features derived from dual-time-point (DTP-feature) [18F]FDG PET metabolic uptake rate K i parametric maps to develop a predictive model for response to chemotherapy in lymphoma patients
Externí odkaz:
https://doaj.org/article/fb05ccf0706a46f7aa537dc4819d3179
Publikováno v:
In Journal of Natural Gas Science and Engineering August 2022 104
Publikováno v:
In International Journal of Rock Mechanics and Mining Sciences June 2021 142