[Determination of maximum transmission time of the labeled complex to malignant lymphatic cells using cell culture]

Nowadays, radiotherapy is considered as one of the main methods in cancer treatment, which uses radiation to destroy cancer cells while causing minimal damage to normal tissue and. Another cancer treatment method is photoelectron therapy, which is a new treatment for mass tumors. In this method, high atomic number drugs should be absorbed by tumor cells] while using carriers] so, their atomic number is increased compare to normal cells, which causes more damage to tumor cells when radiation is applied. Thus, applying accurate and effective photoelectron therapy would be possible. The purpose of this study was to identify and analyze the factors affecting uptake of Metrezoate labeled with gallium by lymphatic tumors in cell cultures. Since uptake of Gallium by Malignant lymphatic cells has been reported in numerous researches, Gallium was bonded with a contrast media [metrezoate]. Malignant lymphatic cells [Large Cell Lymphoma, Small cell Lymphoma and Bourkit Lymphoma] in specific colonies were grown in gel culture media. Metrezoate-gallium complex was added to the culture media in concentration of 50%, 60% and 75%. Then, absorbed volume was determined by the SPECT imaging system in 72 hrs post-addition of metrezoate-gallium complex and the cells count and the colonies area were measured. Obtained results in 72 hrs revealed that maximum absorption; count quantity and colonies area occurred 4 hrs post-addition of gallium-metrezoate complex solution. As results show, Gallium-metrezoate complex is significantly accumulated in malignant lymphatic cells. As effective atomic number of malignant lymphatic cells is enhanced, it is expected applying photoelectron therapy in this time leads to more effective treatment

Increasing of radiographic clinical value by using of radio photo electrostatic imaging system [Xeroradiography]

Ordinary Radiographic film sensitive emulsion is formed by crystals which are composed by millions of ions. According to the film texture, image constructive units number that interfere the image resolution are not increased more than a certain limitation in area unite. This innovation is to present an imaging system that to compare with common similar system has precedence such as highly image resolution, image edge sharpnessenhancement, contrast improvement, patient does reduction, rapid processing and cost decrease. The "Xero" technique is different physical method for imaging procedures in which instead of using the photochemical function, electrostatic effect has been used. The latent electrostatic images develop through toner powder, Because the toner powder particles are fine grain as small as a few compound molecules, Consequently, in the new method, image constructive units number which are described as the toner powder particles are much many more in number than crystals of radiographic films. Xeroradiophotography system is designed and constructed based on xero physical phenomenon in which image can be formed by taking advantage of both, X-Ray and visible light complex procedure for the purpose of X-Rays quality and patients body tissue side effect reduction at the time of exposure. This system has already been made as the first archetype in the world that is possible for optimum improving soon

Presentation of a new system in longitudinal tomography [micro layer tomography]

Tomography or planigraphy is an X-Ray imaging system for preserving a certain plane of a radiography object by diffusing the other planes; however, the wanted plane does not obtain an optimum sharpness. Meanwhile, relatively nearer points to the rotating axes fixed point have lesser linear velocity than those of lying further from fixed point, consequently, Tomographic Bluring [obscuring] occur gradually, that gives rise the wanted plane to be somehow blurred that is known as "tomographic blurring", hence the clinical value of the image is diminished. This innovation could be an approach to improve current tomography systems by increasing image resolution and deep resolution and cost reduction. Micro layer tomography with benefit of fast X -Ray rotating velocity without tube movement has been designed to make images with deep resolution of millimeter fraction whilst, there is no need of digital images reconstruction instruments that allows statistical errors to fall off about zero, and high resolution images could be prepared in all planes [coronal, sagital and cross sectional. Likewise, the patient treatment and the system maintenance cost are much less by many degrees compared with those in CT scan and MRI. In this system with increasing evolution, quick operation is highly exception, hence the tomographic slices could be prepared in about less than 0.02 second. The laboratory samples of this system have been a unique result for proving the new device preference