introduction: the aim of present study was to estimate effective dose from most common procedures performed in nuclear medicine departments of golestan province. methods: data of nuclear medicine procedures performed in 2 nuclear medicine departments in golestan province were collected during 4 years. effective dose, collective effective dose and effective dose per examination were calculated u...

Electronic tissue compensation (eComp) is an external beam planning technique allowing user to manually generate dynamic beam fluence to produce more uniform or modulated dose distribution. In this study, we compared the effectiveness between conventional three-dimensional conformal radiotherapy (3DCRT) and eComp for whole breast irradiation. 3DCRT and eComp planning techniques were used to gen...

The co-infection of Epstein-Barr virus and Cytomegalovirus rarely gains multi-pathogenicity and leads to viral myocarditis. Also, it may lead to progressive heart failure or sudden death. We present a case series of five patients who were monitored for the impact of low-dose colchicine therapy as adjunct to conventional heart failure therapy. Epstein-Barr virus, Cytomegalovirus and other viral ...

Background: Inclusion of inhomogeneity corrections in intensity modulated small fields always makes conformal irradiation of lung tumor very complicated in accurate dose delivery.Objective: In the present study, the performance of five algorithms via Monte Carlo, Pencil Beam, Convolution, Fast Superposition and Superposition were evaluated in lung cancer Intensity Modulated Radiotherapy plannin...

Background: Randomized trials have demonstrated the efficacy of beta-blockers (BBs) in heart failure (HF) patients. We sought to assess the impact of BBs on long-term outcome; in particular, we assessed the association between outcome and BB dose and discharge heart rate. Methods and Results: Prescriptions for dispensed medication and outcomes were identified from a prospective, single-institut...

Background: Internal mammary lymph nodes (IMNs) are a potential site of metastasis for breast cancer. Targeting IMNs as part comprehensive regional nodal irradiation comes at the cost higher unwanted doses to critical nearby organs risk. Thus, efficacy and safety different radiotherapy techniques coverage this area remain elusive. Objectives: We present dosimetric comparison between partially w...

Introduction: Radiotherapy (RT) plays a major role in the management of breast cancer. Cardiac Toxicity is an important late complication of radiotherapy for left sided Breast cancer. Cardiac morbidity can be minimized through careful treatment planning. Aim: To study the variation of dose to the heart by change in the depth of normalization point during Radiotherapy planning. Settings and desi...

In many thoracic cancers, the radiation dose that can safely be delivered to the target volume is limited by the tolerance dose of the surrounding lung tissue. It has been hypothesized that irradiation of the heart may be an additional risk factor for the development of early radiation-induced lung morbidity. In the current study, the dependence of lung tolerance dose on heart irradiation is de...

INTRODUCTION AND OBJECTIVES Beta-blocker treatment of stable heart failure in primary care. The objective was to evaluate the feasibility and tolerability of uptitrating beta-blockers in patients with stable systolic heart failure seen in primary care. METHODS Before and after intervention study. The study was conducted in two primary care centers in Barcelona, Spain. Consecutive samples of p...