Search Results - "Hashemi, Bijan"

Radiosensitization of breast cancer cells using AS1411 aptamer-conjugated gold nanoparticles by Mehrnia, Somayeh Sadat, Hashemi, Bijan, Mowla, Seyed Javad, Nikkhah, Maryam, Arbabi, Azim

“…Gold nanoparticles (GNPs) have been used to sensitize cancer cells and enhance the absorbed dose delivered to such cells. Active targeting can provide specific…”
Get full text

Estimating cancer risks due to whole lungs low dose radiotherapy with different techniques for treating COVID-19 pneumonia by Banaei, Amin, Hashemi, Bijan, Bakhshandeh, Mohsen

“…Low dose radiotherapy (LDRT) of whole lungs with photon beams is a novel method for treating COVID-19 pneumonia. This study aimed to estimate cancer risks…”
Get full text

The feasibility of a dose painting procedure to treat prostate cancer based on mpMR images and hierarchical clustering by Rezaeijo, Seyed Masoud, Hashemi, Bijan, Mofid, Bahram, Bakhshandeh, Mohsen, Mahdavi, Arash, Hashemi, Mohammad Saber

“…We aimed to assess the feasibility of a dose painting (DP) procedure, known as simultaneous integrated boost intensity modulated radiation Therapy (SIB-IMRT),…”
Get full text

Introducing new plan evaluation indices for prostate dose painting IMRT plans based on apparent diffusion coefficient images by Moradi, Saman, Hashemi, Bijan, Bakhshandeh, Mohsen, Banaei, Amin, Mofid, Bahram

“…Abstract Background Dose painting planning would be more complicated due to different levels of prescribed doses and more complex evaluation with conventional…”
Get full text

Effect of Gold Nanoparticles Conjugated with Folic Acid on the Absorption and Radiosensitization of Cervical Cancer Cells Under 6 MV Photon Irradiation by Bahare Amini Kadijani, Bijan Hashemi, Seied Rabi Mahdavi, Masoud Soleimani

“…Background and purpose: Radiation therapy is one of the most important methods in treatment of cancer. Targeted metal nanoparticles (NPs) play an effective…”
Get full text

Normal Tissue Complication Probability Modeling of Radiation-Induced Hypothyroidism After Head-and-Neck Radiation Therapy by Bakhshandeh, Mohsen, MSc, Hashemi, Bijan, PhD, Mahdavi, Seied Rabi Mehdi, PhD, Nikoofar, Alireza, MD, Vasheghani, Maryam, MD, Kazemnejad, Anoshirvan, PhD

“…Purpose To determine the dose-response relationship of the thyroid for radiation-induced hypothyroidism in head-and-neck radiation therapy, according to 6…”
Get full text

Comparison of dosimetric and radiobiological effects of various IMRT techniques regarding to joint volume between target tissue and organs at risk in prostate cancer patients by Amin Banaei, Bijan Hashemi, Mohsen Bakhshandeh, Bahram Mofid

“…Background: Intensity-modulated radiotherapy (IMRT) is one of the most usable methods in prostate radiotherapy that is used with different techniques. The aim…”
Get full text

Evaluation of Thyroid Disorders During Head-and-Neck Radiotherapy by Using Functional Analysis and Ultrasonography by Bakhshandeh, Mohsen, M.Sc, Hashemi, Bijan, Ph.D, Mahdavi, Seyed Rabie, Ph.D, Nikoofar, Alireza, M.D, Edraki, Hamid Reza, M.D, Kazemnejad, Anoshirvan, Ph.D

“…Purpose To evaluate thyroid function and vascular changes during radiotherapy for patients with head and neck cancer. Methods and Materials Fifty patients…”
Get full text

Radioprotective effect of N-acetyl-L-cysteine free radical scavenger on compressive mechanical properties of the gamma sterilized cortical bone of bovine femur by Allaveisi, Farzaneh, Hashemi, Bijan, Mortazavi, Seyed Mohammad Javad

“…Gamma sterilization of bone allografts is used as a gold standard method to provide safety against disease transmission. However, it is well documented that…”
Get full text

Comparing the Variation of Time and Frequency Components of Electroretinogram in Patients with Retinitis Pigmentosa and Healthy Individuals by Samira Ebdali, Bijan Hashemi, Ebrahim Jafarzadehpour

“…Background and purpose: Retinitis Pigmentosa (RP) is one of the retinal degeneration diseases affecting the eye signals. Electroretinogram (ERG) is a signal…”
Get full text

Investigation of the gold nanoparticles effects on the prostate dose distribution in brachytherapy: gel dosimetry and Monte Carlo method by Khosravi, Hossein, Hashemi, Bijan, Rahmani, Faezeh, Ebadi, Ahmad

“…In this work, gold nanoparticles (GNPs) were embedded in the MAGIC-f polymer gel irradiated with the Ir brachytherapy sources. At the first plexiglas phantom…”
Get full text

Gel dosimetry: The effect of gold nanoparticles on the dose enhancement in the external radiation therapy by Hossein Khosravi, Faezeh Rahmani, Bijan Hashemi

“…Background: Normoxic type MAGICA gel dosimeters are established for dose quantification in three dimensions for radiotherapy. Objective(s): The ability of…”
Get full text

Estimation of cell response in fractionation radiotherapy using different methods derived from linear quadratic model by Nikzad, Safoora, Hashemi, Bijan, Mahmoudi, Golshan, Baradaran-Ghahfarokhi, Milad

“…The aim of this study was to use various theoretical methods derived from the Linear Quadratic (LQ) model to calculate the effects of number of subfractions,…”
Get full text

Influence of compensator thickness, field size, and off-axis distance on the effective attenuation coefficient of a cerrobend compensator for intensity-modulated radiation therapy by Haghparast, Abbas, M.Sc, Hashemi, Bijan, Ph.D, Eivazi, Mohammad Taghi, Ph.D

“…Abstract Intensity-modulated radiation therapy (IMRT) can be performed by using compensators. To make a compensator for an IMRT practice, it is required to…”
Get full text

Measurement of Photoneutron Dose Produced by Wedge Filters of a High Energy Linac Using Polycarbonate Films by Hashemi, Seyed Mehdi, Hashemi-Malayeri, Bijan, Raisali, Gholamreza, Shokrani, Parvaneh, Sharafi, Ali Akbar, Torkzadeh, Falamarz

“…Radiotherapy represents the most widely spread technique to control and treat cancer. To increase the treatment efficiency, high energy linacs are used…”
Get full text

564: A dosimetrical assessment of MCO approach on organs at risk sparing in the VMAT of Brain Tumors by Amiri, Nasim, Hashemi, Bijan, Bakhshandeh, Mohsen, Banaei, Amin

Get full text

Radiosensitization effect of folate-conjugated gold nanoparticles on HeLa cancer cells under orthovoltage superficial radiotherapy techniques by Khoshgard, Karim, Hashemi, Bijan, Arbabi, Azim, Rasaee, Mohammad Javad, Soleimani, Masoud

“…Due to the high atomic number of gold nanoparticles (GNPs), they are known as new radiosensitizer agents for enhancing the efficiency of superficial…”
Get more information

Effect of 13.56 MHz radiofrequency hyperthermia on mitotic cell cycle arrest in MCF7 breast cancer cell line and suggest a time interval for radiotherapy by Hatamian, Milad, Hashemi, Bijan, Mahdavi, Seied Rabi, Soleimani, Masoud, Khalafi, Leila

“…After surgery, radiotherapy is the most common technique to treat breast cancer. Over the past decades, the thermal effects of radiofrequency-wave hyperthermia…”
Get full text

Enhancing the effect of 4 MeV electron beam using gold nanoparticles in breast cancer cells by Mehrnia, Somayeh Sadat, Hashemi, Bijan, Mowla, Seyed Javad, Arbabi, Azim

“…Highlights • Gold nanoparticles (GNPs) decreased breast cancer cells survival fraction following electron beam irradiation. • Pre-Incubation of MCF-7 cells…”
Get full text

Time and frequency components of ERG responses in retinitis pigmentosa by Ebdali, Samira, Hashemi, Bijan, Hashemi, Hassan, Jafarzadehpur, Ebrahim, Asgari, Soheila

“…Purpose To evaluate the effects of retinitis pigmentosa (RP) on time, frequency, and time–frequency components of Xenon flash ERG signals using Fourier and…”
Get full text