Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Mahsa Noori-Asl"'
Autor:
Mahsa Noori-Asl, Maryam Eghbal
Publikováno v:
Journal of Medical Physics, Vol 49, Iss 3, Pp 464-472 (2024)
Purpose: This study aims to evaluate the performance of dual-energy window (DEW) and triple-energy window (TEW) scatter correction methods in cardiac SPECT imaging with technetium-99m (Tc-99m) and thallium-201 (Tl-201) radioisotopes. Materials and Me
Externí odkaz:
https://doaj.org/article/7b1213af2e1849b68d0dbcea4d7e6735
Autor:
Mahsa Noori-Asl, Pooneh Sayyah-Koohi
Publikováno v:
Journal of Medical Physics, Vol 47, Iss 4, Pp 374-380 (2022)
Purpose: The aim of this study is to investigate the factors affecting the response of the pixelated CZT SPECT imaging systems and to compare the performance of these systems with the conventional SPECT imaging systems. Materials and Methods: By usin
Externí odkaz:
https://doaj.org/article/f5db016e2ade407eaa031e8e1c54a429
Autor:
Mahsa Noori-Asl, Sara Jeddi-Dashghapou
Publikováno v:
Journal of Medical Physics, Vol 47, Iss 3, Pp 294-300 (2022)
Introduction: The quality of images obtained from the nuclear medicine imaging systems depends on different factors. One of the most important of these factors is the geometrical and physical characteristics of collimator used for imaging with a give
Externí odkaz:
https://doaj.org/article/d13b0b7b89fb4c4fa53178c0b8cc4eb0
Publikováno v:
Radiation Protection and Environment, Vol 45, Iss 1, Pp 48-53 (2022)
In this study, the weak alpha radiation sources and the beta radiation by the effect of them on the electrical conductivity of air inside the ionization chamber are studied by measuring the produced current. The aim of this study is to make an ioniza
Externí odkaz:
https://doaj.org/article/a52181c8db9442e6a50275308e85cce6
Autor:
Mahsa Noori-Asl
Publikováno v:
Journal of Medical Physics, Vol 45, Iss 1, Pp 44-51 (2020)
Background: Monte Carlo (MC) simulation codes are used extensively for modeling the nuclear medicine imaging systems, such as single photon emission computed tomography (SPECT) and positron emission tomography (PET). By using these codes, it is possi
Externí odkaz:
https://doaj.org/article/6f8ff69f9d1e464db66c1259d6a900fe
Autor:
Mahsa Noori-Asl
Publikováno v:
Journal of Medical Physics, Vol 45, Iss 2, Pp 107-115 (2020)
Introduction: Detection of compton scattered photons is one of the most important factors affecting the quality of single-photon emission computed tomography (SPECT) images. In most cases, the multiple-energy window acquisition methods are used for e
Externí odkaz:
https://doaj.org/article/da608693d0e74ae884fcc1d1e3fe93e9
Publikováno v:
Iranian Journal of Medical Physics, Vol 16, Iss 6, Pp 430-438 (2019)
Introduction: Myocardial perfusion imaging is a nuclear medicine imaging method that is used to detect coronary artery diseases. One of the main sources of error in this imaging method is the detection of Compton scattered photons in the photopeak en
Externí odkaz:
https://doaj.org/article/134bd7216b6f459bb342407522edc857
Autor:
Mahsa Noori-Asl, Hoora Hosseinifar
Publikováno v:
Journal of Instrumentation. 17:P08017
Introduction and Objectives: detection of Compton scattered photons is one of the effective factors in reducing the quality of SPECT images. The aim of this study is to reduce the contribution of scattered counts included in the main energy window fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ad913f1e7e22e151165dd8ccd2b011b
https://doi.org/10.1088/1748-0221/17/08/p08017
https://doi.org/10.1088/1748-0221/17/08/p08017
Autor:
Mahsa Noori-Asl
Publikováno v:
Journal of Medical Physics
Journal of Medical Physics, Vol 45, Iss 1, Pp 44-51 (2020)
Journal of Medical Physics, Vol 45, Iss 1, Pp 44-51 (2020)
Background: Monte Carlo (MC) simulation codes are used extensively for modeling the nuclear medicine imaging systems, such as single photon emission computed tomography (SPECT) and positron emission tomography (PET). By using these codes, it is possi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43b18ac8106986b9982c5d30ddf24b34
https://pubmed.ncbi.nlm.nih.gov/32355434
https://pubmed.ncbi.nlm.nih.gov/32355434
Autor:
Ahmad Bitarafan-Rajabi, Hadi Taleshi Ahangari, Hemmatollah Rouhani, Mehravar Rafati, Bagher Farhood, Mahsa Noori-Asl
Publikováno v:
Journal of Cancer Research and Therapeutics, Vol 13, Iss 6, Pp 936-942 (2017)
Background: Compton-scattered photons transfer incorrect spatial information. These photons are detected in used photo-peak energy window. In this study, three scatter correction procedures including dual-energy window (DEW), three energy window (TEW
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46e7b7903872114d56eb935010011772
http://www.cancerjournal.net/article.asp?issn=0973-1482
http://www.cancerjournal.net/article.asp?issn=0973-1482