Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Malakeh Malekzadeh"'
Publikováno v:
Journal of Medical Signals and Sensors, Vol 13, Iss 4, Pp 280-289 (2023)
Background: Simulation of tomographic imaging systems with fan-beam geometry, estimation of scattered beam profile using Monte Carlo techniques, and scatter correction using estimated data have always been new challenges in the field of medical imagi
Externí odkaz:
https://doaj.org/article/c7ac275eb9fc4cb6a614fcd3a38e163c
Publikováno v:
Iranian Journal of Medical Physics, Vol 11, Iss 4, Pp 301-307 (2014)
Introduction Given the fact that children are more sensitive to radiation, compared to adults, special attention needs to be paid to radiation protection in pediatric radiology. Diagnostic reference level (DRL) has been defined to be employed as a pr
Externí odkaz:
https://doaj.org/article/780f8e0d51474d098b9cbe710bba9f7c
Autor:
Hamidreza Saligheh Rad, Ali Abbasian Ardakani, Mohamad Shahgholi, Mahsa Talebi, Shahrokh Abbasi-Rad, Kimia Foudeh, Malakeh Malekzadeh
Publikováno v:
Journal of Magnetic Resonance Imaging. 54:1744-1751
BACKGROUND Investigation of cortical bone using magnetic resonance imaging is a developing field, which uses short/ultrashort echo time (TE) pulse sequences to quantify bone water content and to obtain indirect information about bone microstructure.
Autor:
Mohammad Bagher Shiran, Parisa Naghdi, Shahrokh Abbasi-Rad, Nazanin Mobini, Joyce H. Keyak, Mahnaz Nabil, Malakeh Malekzadeh, Hamidreza Saligheh Rad, Mojgan Asadi, Hamid Emadi
Publikováno v:
Journal of Clinical Densitometry. 23:108-116
Introduction: Cortical bone is affected by metabolic diseases. Some studies have shown that lower cortical bone mineral density (BMD) is related to increases in fracture risk which could be diagnosed by quantitative computed tomography (QCT). Nowaday
Publikováno v:
Magnetic Resonance Materials in Physics, Biology and Medicine. 33:385-392
Assessment of iron content in the liver is crucial for diagnosis/treatment of iron-overload diseases. Nonetheless, T2*-based methods become challenging when fat and iron are simultaneously present. This study proposes a phantom design concomitantly c
Autor:
Shahrokh Abbasi-Rad, Mohammad Bagher Shiran, Mohamad Shahgholi, Niloofar Ayoobi Yazdi, Malakeh Malekzadeh, Hamidreza Saligheh Rad, Parisa Naghdi, Marzieh Sadat Hoseini
Publikováno v:
Journal of Medical Imaging and Radiation Sciences. 50:157-162
Introduction Quantitative computed tomography (QCT) can supplement dual x-ray absorptiometry by enabling geometric and compartmental bone assessments. Whole-body spiral CT scanners are widely available and require a short scanning time of seconds, in
Autor:
Atena Akbari, Hossein Arabalibeik, Mohamad Shahgholi, Hamidreza Saligheh Rad, Malakeh Malekzadeh, Shahrokh Abbasi-Rad
Publikováno v:
Magnetic resonance imaging. 71
Purpose The purpose of our study was to use Dual-TR STE-MR protocol as a clinical tool for cortical bone free water quantification at 1.5 T and validate it by comparing the obtained results (MR-derived results) with dehydration results. Methods Human
Autor:
Hamid Abdollahi, Malakeh Malekzadeh
Publikováno v:
OMICS Journal of Radiology. 5
Medical imaging using ionizing radiation is an increasing activity that brings tremendous benefits to the patients. But stochastic and deterministic effects of radiation, make it necessary to protect patients from potential harm. In this study, we re
Autor:
Malakeh Malekzadeh, H. Zare, Mohammad Saber Hashemi, Fatemeh Akbari, M. T. Bahreyni Toossi, Sh Bayani Roodi
Publikováno v:
Radiation Protection Dosimetry. 155:96-99
Although, over the past few years, the application of mammography has risen up sharply in Iran, very little, if any, has been reported of the extent of patient's dose from this type of imaging. The purpose of this study was to establish local diagnos
Publikováno v:
Iranian Journal of Radiology
BACKGROUND With the increase of X-ray use for medical diagnostic purposes, knowing the given doses is necessary in patients for comparison with reference levels. The concept of reference doses or diagnostic reference levels (DRLs) has been developed