Radiotherapy to the thorax in conventional dosage appears to be capable of causing damage to any of the tissues in the thoracic wall or within the thoracic cavity. Since the earliest days of x-ray treatment radiation changes in the skin have been such an everyday problem that they scarcely warrant discussion here except to note that with the advent of new radiotherapeutic techniques they are be...

We have developed a clinical method for the graphic recording, analysis and planning of treatment of leg-length discrepancy during growth. Initially, the clinically determined discrepancy is plotted against the chronological age yearly, and then in late childhood at six-monthly intervals. CT and measurements of skeletal age are made in middle and late childhood to confirm the clinical findings....

the pharmacokinetics of cefpirome was investigated in buffalo calves following its single intramuscular (im) administration (10 mg). the peak plasma concentration of cefpirome at 30 min was 9.0 ± 0.5 μg.ml-1, which declined to 0.2 ± 0.1 μg.ml -1 at 24 hrs. the absorption half-life (t1/2ka) and elimination half-life (t1/2 β) were 0.19 ± 0.03 hr and 2.39 ± 0.05 hr, respectively. the area under th...

purpose : to present a patient with radiation chiasma neuropathy, secondary to radiotherapy of paranasal sinus lymphoma who was referred for evaluation of gradual decrease of vision in both eyes case report : the patient was a 38-year-old male, with history of right maxillary sinus lymphoma, who underwent surgery, chemotherapy and radiation therapy. one year after radiotherapy, he noticed gradu...

BACKGROUND AND PURPOSE The lens of the eye is sensitive to radiation. Children undergoing CT of the head and patients undergoing repeated CT scanning of the head are vulnerable to this complication. The purpose of this study was to test the ability of a heavy metal, bismuth, in reducing radiation to the lens of the eye during routine cranial CT. METHODS Both phantom and human studies were don...

1. Paramecium caudatum is sensitized to heat by sublethal dosages of x-rays. Thus if paramecia are irradiated, then exposed to a sublethal dosage of heat they are killed, but if the same heat exposure precedes the same dosage of radiations, they are not. 2. Sensitivity to both heat and x-rays is much greater in paramecia from the log growth phase than in those from the stationary phase of a cul...

Catalase present in the suspending medium during irradiation significantly reduced the lethal action of gamma radiation from cobalt6O for anaerobic bacterial spores. This finding supports the theory that the lethal action of ionizing radiations is at least partially due to secondary effects of the irradiation. Furthermore, such protection of anaerobic bacterial spores is important when steriliz...

Although Computed Tomography (CT) is a mature discipline, the development of techniques that will further reduce radiation dose are still essential. This paper makes steps towards projection and reconstruction methods which aim to assist in the reduction of this dosage, by studying the way noise propagates from projection space to image space. Inference methods Maximum Likelihood Estimation (ML...

Introduction: The study was undertaken to evaluate the practice of chest radiography using different digital imaging systems and its influence on dose and image quality.  Materials and Methods: The study was carried out in two hospitals from March 2016 to June 2016. Sixty ambulatory patients aged 21 to 60 years who were able to cooperate without difficulty and weighed between 60 to 80 kg were ...