Abstract CT scan is one of the most valuable tools used in the centers of modern health care and are accompanied by radiation dose greater than that of the normal radiographic and must be therefore use carefully to protect patients from radiation. The aim of this study to compare between radiation dose and image quality and to compare between CT brain protocols and radiation dose . Random samples consist of 30 patients who underwent CT brain examination. The patients data registered(age, gend...
ABSTRACT HIV/AIDS is still of major public health concern. With no vaccine in sight, it is only necessary to take a look at the sexual behaviors and practices of people living with HIV/AIDS. This study was to determine the sexual behaviors of people living with HIV attending ART clinic at District Hospital, Agbani, Nkanu-west local government area, Enugu state. METHODOLOGY: This was a descriptive cross sectional study. A systematic random sampling method was used to select 321 participants. D...
ABSTRACT A very good reason why calculation of dose distribution is important is that it is essential to plan and replicate the treatment prior to the actual delivery of the radiation dose to the tumour. In modern radiation therapy, computer software is used for performing treatment planning. Different algorithms are employed at every stage of treatment including dose calculation algorithms. The dose calculation used for the HDRplus TPS is the TG43 formalism and just like every other TPS, th...
ABSTRACT The dose to the contralateral breast for tangential breast irradiation has been estimated using Gafchromic films EBT2. The data collected consisted of measurements taken with anthropomorphic female Rando phantom. The EBT2 films were scanned and read using ScanMaker 9800XL plus and ImageJ software. A calibration curve was constructed using fourth – order polynomial fit to the data and a calibration equation was obtained from the graph which was used to convert the grey values into ...
ABSTRACT The purpose of this study was to determine an appropriate locally fabricated wood sample that could be used to replace the wire mesh incorporated at the treatment area of EBRT couch top to circumvent dose discrepancies associated with the sagging effect of the wire mesh as a result of prolonged use. Linear attenuation coefficient and transmission factor were determined at three stipulated field sizes (5cm x 5cm, 10cm x 10cm,15cm x 15cm) and two treatment depths of 0.5cm and 5cm fo...
ABSTRACT Crystalloid solutions are used in clinical practice for resuscitation and correction of electrolyte imbalances. However, up to 25% of individuals may develop dysfunctions of haemostasis following fluid infusions, complicating resuscitation and outcome. Studies on the effects of crystalloids solutions on human blood coagulation have produced conflicting results: either suggesting procoagulant effects or impaired coagulation. The mechanisms for these discrepant results remain unclear....
ABSTRACT Mean glandular dose assessment of patients undergoing digital mammography examination has been done. A total of 297 patient data was used for the study. Basic Quality Control tests were done to ascertain the performance of the equipment used. The results of Quality Control tests indicated that the three Mammography units used for this study were functioning within the internationally acceptable performance criteria. Patients with a breast thickness of 30 mm within the two age groups...
ABSTRACT The use of telecobalt machine in radiotherapy is of concern in developing countries where there is a limited resource. As such, the study was to ascertain if telecobalt (cobalt60) machine could be feasible to generate and deliver treatment plans with optimal treatment indices comparable to those of a linear accelerator (Linac). Retrospective DICOM-Radiotherapy images of patients earmarked for treatment of breast, prostate and lung cancer obtained from the European Society for Radiot...
Abstract :- neutron capture, type of nuclear reaction in which a target nucleus absorbs a neutron (uncharged particle), then emits a discrete quantity of electromagnetic energy (gamma-ray photon). The target nucleus and the product nucleus are isotopes, or forms of the same element. Thus phosphorus-31, on undergoing neutron capture, becomes phosphorus-32. The heavier isotope that results may be radioactive, so that neutron capture, which occurs with almost any nucleus, is a common way of pro...
Abstract Radiation therapy has been used in the treatment of cancer patients since its discovery in 1895, and these techniques were always in continuous scientific and technical development. It was necessary to introduce diode in-vivo dosimetry for radiation measurements to control the dose administered to patients. The patient simulating device, planning system and treatment machine are tested regularly according to set protocols developed by national and international organizations. Even t...
Abstract This study aimed to assess grid alignment for radiology departments in Khartoum state. A total of 10 x-ray units in radiology departments in Khartoum state from different manufacture were tested by grid alignment test tool and the optical density for radiographic film was read by transition densitometer . In this study the final result showed that the percentage of grid misalignment for x-ray machines was (40%), less than those with grid alignment x-ray machines (60%). Which means a...
ABSTRACT The purpose of this study is to highlight the importante of radiation protection in nuclear medicine, to assess the level of application of Radiation safety measures programs in the nuclear medicine department. This study was done in selected departments of nuclear medicine included the National Center for radiotherapy ,Alneilin , Fadil and Royal Care using questionnaire for workers for evaluation of radiation safety in the departments, in the period from January 2015 to may 201...
Abstract This Study Was Performed To Assess The Performance Of Gamma Camera Quality Control System In National Cancer Institute-Wad Madani Department Of Nuclear Medicine For The Following Parameters: Uniformity, Energy Resolution And Physical Inspection Peaking Using Tc99m. The Samples Of This Study For Quality Control Reading Includes 61 (Readings), Extrinsic Uniformity 52, Energy Resolution 9. Were The Data Collected In Period From January To June 2020. All Results That Was Obtained From T...
Abstract For the purpose of comparison of the traditional statistical methods used in analysing and classifying data with a vast amount of information and modern statistical methods computerized to obtain relationships and models that help in extracting useful information and support for decision making and hence the problem of study in how Employing this field in the organization, analysis and classification of such a large amount of data, and the establishment of a general rule concerning ...
Abstract: Organ motion in Radiotherapy induce an error in the received dose by the tumour therefore this experimental study conducted at different hospitals in Sudan (Radiation and Isotopes Centres of Khartoum (RICK) and Antalya clinic centre in period of 7 months, from May 2014 to December 2014. The main objective of this study was to detect and measure the periodic physiological prostate motion during external beam radiotherapy (inspiration and expiration) , to accurate and continuous tumo...