Mohammad Mohammadzadeh

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BACKGROUND Esophageal cancer in Iran is the sixth most common cancer and is particularly important in east Azerbaijan. The aim of this study was to calculate survival rates and define prognostic factors in esophageal cancer patients. METHODS In this study, all patients with esophageal cancer registered in the Radiation Therapy Center, during March 2006 to(More)
BACKGROUND Areas of Iran have among the highest incidences of esophageal cancer in the world. Definitive chemo-radiotherapy (DCRT) is used for locally advanced esophageal cancer and for inoperable tumors asan alternative to surgical treatment. MATERIALS AND METHODS This retrospective study was conducted in North- West Iran 2006-2011, including 267(More)
BACKGROUND Tumor length in patients with esophageal cancer (EC) has recently received great attention. However, its prognostic role for EC is controversial. The purpose of our study was to characterize the prognostic value of tumor length in EC patients and offer the optimum cut-off point of tumor length by reliable statistical methods. MATERIALS AND(More)
Following failure of systemic chemotherapy, transarterial chemoembolization (TACE) is an available method to control unresectable liver metastases from colorectal carcinoma (CRC). The aim of present study was to evaluate the efficacy of chemoembolization for inoperable metastatic liver lesions from CRC. Forty-five CRC patients with liver metastases(More)
Simultaneous occurrence of papillary and follicular thyroid cancer, known as differentiated thyroid cancer, has been reported with various presentations, but presence of an anaplastic cancer, as an undifferentiated cancer, in addition to differentiated thyroid cancer is rarely reported. We here report a 40-year-old man with papillary thyroid cancer on his(More)
PURPOSE Breast cancer is the most common malignancy of women worldwide. Radiotherapy consists of a vital element in the treatment of breast cancer but relative side effects and different radioactive responses are limiting factors for a successful treatment. Doxorubicin has been used to treat cancers for over 30 years and is considered as the most effective(More)
OBJECTIVES The aims of this study were to determine the effect of conjugated linoleic acid (CLA) supplementation on inflammatory factors and matrix metalloproteinase (MMP) enzymes in rectal cancer patients undergoing chemoradiothetrapy. METHOD AND MATERIAL In this randomized, double-blind, placebo-controlled pilot study, 34 volunteer patients with rectal(More)
Photoneutrons produced during radiation therapy with high energy photons is the main source of unwanted out-of-field received doses of patients. To analyze the neutron dose equivalent (NDE) for wedged beams and its variation with field size, Monte Carlo (MC) modeling of an 18MV photon beam was performed using MCNPX MC code. The results revealed that the NDE(More)
BACKGROUND Some studies have indicated a protective role of H.pylori against risk of esophageal squamous cell carcinoma (ESCC). The purpose of this study was to explore this possible relationship in a case-control study. METHODS One hundred consecutive patients diagnosed with ESCC and 100 healthy people were entered with informed consent. All were asked(More)
The aim of this study was to demonstrate the feasibility of MR microimaging on a conventional 9.4 T horizontal animal MRI system using commercial available microcoils in combination with only minor modifications to the system, thereby opening this field to a larger community. Commercially available RF microcoils designed for high-resolution NMR(More)