Negin Azadi Introduction

Welcome to Negin cancer center

Radiation therapy is the one of the principals of the cancer treatment that uses high doses of radiation to kill cancer cells and shrink tumors.

Negin cancer center is a modern comprehensive cancer center where our teams of experts provides innovative, high quality radiation treatment for patients in the safest possible manner.

The department of radiation oncology is equipped with LINAC delivery treatment devise with flat 6MV and 15MV photon beam and unflatten 7MV photon with dose rates up to 2000 cGy/min and a range of electron energies.

Our advanced built-in cone beam computed tomography (CBCT), the linear accelerators with multileaf collimation, and quality control software enables us to avoid treatment errors and improves the accuracy of the targeting beams.

Treatment techniques in Negin cancer center

3D conformal radiation therapy

Three dimensional conformal radiation therapy (3DCRT) involves imaging, precise radiation dose calculation, computer-optimized treatment planning, and computer controlled treatment delivery. To maximize the precision of our treatment, we can merge the treatment planning CT scan with diagnostic quality images, such as MRI and PET scans.

Image guided radiation therapy (IGRT)

IGRT is one of the most advanced innovations in cancer treatment technology available.

It refers to the use of advanced imaging (2D and 3D) to assure that the positioning of the tumor will match the highly conformal dose delivery.

These imaging systems will track the tumor or implanted markers called fiducials during the course of radiation.

Image guidance is available on all of our radiation machines and includes, X-rays and standard strength CT imaging built into radiation machine, so that we can deliver precise radiation treatment to tumors that shift because of breathing and movement of the bladder and bowels.

Intensity modulated radiation therapy (IMRT) 

IMRT planning starts with tumor target and normal tissue definition, followed by inverse planning. Using computer optimization, multiple small fields are designed to give a complex and conformal radiation dose distribution, which maximize the prescription dose to the tumor, while minimizing the dose to regional normal tissues.

Stereotactic radiosurgery (SRS) 

Stereotactic radiosurgery is not actually surgery. Instead, uses dozens of tiny radiation beams to treat tumors in the brain with a single radiation dose.

And involves the delivery of a high dose of radiation precisely focused on a target within the brain.

Stereotactic body radiation therapy (SBRT) 

SBRT is similar to SRS, except that SBRT treats tumors outside of the central nervous system. It means that a specially designed coordinate system is used for the exact localization of the tumors, in order to treat them with limited but highly precise treatment fields. SBRT involves the delivery of a single high dose radiation treatment, or a few fractionated radiation treatments (usually up to five treatments).

Volumetric modulated arc therapy (VMAT)

VMAT is a form of IMRT in which multiple radiation beams of different intensities are directed at the tumor through a rotating radiation treatment machine. As the machine rotates, radiation is delivered at every angle focusing the highest possible dose of radiation to the tumor while minimizing radiation to surrounding healthy organs.

Physics department

The Department of Radiation Physics provides safe, accurate and high quality patient care in collaboration with radiation oncologists it`s mission is to:

Provide quality assurance of imaging and treatment delivery equipment and to ensure optimal, accurate and safe delivery of treatments

Provide clinical services in support of imaging and planning, delivery and patient-specific quality assurance of radiation treatments

Provide patient specific consultations as requested by the oncologists

CT Simulation

CT scanners simulate treatments by testing various beam fields and immobilization devices used to keep the patient from moving during treatment. Data from the simulators help calculate the appropriate dose before treatment begins.

Our CT simulation device is a highly flexible, intuitive CT simulator. With fully integrated hardware and software, it increases certainty and reduces the likelihood of errors. It also features advanced algorithms, AI-powered organ-at-risk (OAR) autocontouring, and excellent soft-tissue contrast potentially decreasing target margins


Other abilities

Creates higher accuracy of calculations by the ability of elimination of any metal artifacts.

The diameter of the gantry opening is more than 80 cm, which allows the patient to undergo CT simulation in it`s therapeutic position, which is especially important in breast cancer and overweight patients.

A flat bed surface similar to the accelerator`s bed.

The presence of external laser beams that can increase the setup accuracy


Immobilization Equipments

For optimizing radiotherapy delivery, it is necessary to minimize margins as much as possible. This can be achieved by improving patient setup and immobilization.

Fortunately, our center has the most advanced immobilization devices for all types of tumors, Which reduces the patient’s movement to less than 1 mm


Motion Management System Equipments

In the treatment of tumors in the chest and abdomen, where involuntary breathing leads to tumor movement, the presence of respiratory gating system can synchronize the radiation exposure with each respiratory phase, in other words, we irradiate the tumor only in the inhalation or exhalation phase

Planning systems

We use tow types of planning systems:

RayStation: which is a novel treatment planning systems with features like multi-criteria optimization, ultrafast computation speed and 4D adaptive radiation therapy.

ISOgray: which enables us to make our clinical decisions based on accurate dose calculations and plan the dose delivery with confidence.

Dosimetry and Quality Control System

To ensure proper functioning of technical equipment producing ionizing radiation and to avoid unintended exposure, we check the radiation output quality after installation and frequently overtime

In our center calibration laboratory, in hands of experienced dosimeterist, using equipment from PTW Company, provides a correct measurement of radiation quantities.

Follow up

Your care does not end when your treatment is over. Our cancer survivorship staff members help you cope with any side effects from the cancer or the treatment and also to set a frequent follow up plan as needed.


Negin cancer center is located in the center of the city that is surrounded by lots of high quality hotels for your stay

Easy access to public transportation including taxi and bus and only a three minute walk from Tohid`s subway station is another advantage of our center

Contact information:

Address: Negin Azadi Tower, Azadi-Eskandari fourway, tehran, iran

phone: 021-62756000

Dr hosein yahyazadeh

Radiation Oncologist, IMRT & Brachytherapy Fellow at Loyola university Medical Center, Maywood, IL, USA
Funder and the Head of Negin Oncology comprehensive Cancer Center
Director of Clinical Cancer Research Center in Milad Hospital (CCRC)

دکتر بخشنده

Dr Mohsen bakhshandeh

Ph.D. in Medical Physics 2012 Tarbiat modares University, Tehran, Iran.

Associate Professor 2017 to present Radiology & Radiotherapy Department- Para Medical Faculty- Shahid Beheshti University of Medical Sciences, Tehran, Iran.