Research Papers/Topics in Medical Physics

To Assess the Knowledge of Danger Signs in Pregnancy Among Pregnant Women Attending Antenatal Clinic in Kampala International University -Teaching Hospital

ABSTRACT A cross-sectional study was done on the Topic: Assessment of knowledge of Danger Signs among pregnant women attending ANC in KIU-TH). Pregnancy is a normal process that results in a series of both physiological and psychological changes in expectant mothers. However, normal pregnancy may be accompanied by some problems and complications which is potentially life-threatening to the mother and the fetus. Fraser et al (2003). Danger sign(s) is a term used to refer to a group of symptom...

Refined Sievert Integral for The Calculation of Dose Distribution Around the New Bebig Co-60 High Dose Rate Brachytherapy Source

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, the...

Comparative Studies on Permanent Prostate Brachytherapy: PrePlan and Real-Time Transrectal Ultrasound Guided Iodine-125 Seed Implants at Korle-Bu Teaching Hospital, Ghana

CHAPTER ONE INTRODUCTION 1.1 Background Brachytherapy is a term used to describe the short distance treatment of cancer with radiation from small, encapsulated radionuclide sources. This type of treatment is given by placing sources directly into or near the volume to be treated. The dose is then delivered continuously, either over a short period of time (temporary implants) or over the lifetime of the source to a complete decay (permanent implants). Most common brachytherapy sources emit ph...

Assessment of Radiation Dose to Patients During Single Photon Emission Computed Tomography (Spect) 99mtc-Sestamibi Myocardial Perfusion Imaging (Mpi) In Niamey- Niger.

ABSTRACT Radiation absorbed dose for patients undergoing myocardial perfusion has been calculated for technetium-99m Hexakis-2-methoxy-2-methylpropyl-isonitrile (99mTcSestamibi) at the Nuclear Medicine Department of Abdou Moumouni University. Thirty patients were scanned and image quantification was achieved using MedisoInterViewXP® software. An activity of370 MBq (10 mCi) of 99mTc-Sestamibi was administered for stress and 1110 MBq (30 mCi) for rest. A 256 x 1024 matrix size and a speed of 2...

Sub-Chronic Effect of Co-Administration of Methformine and Amilodipine on Some Haematological Indices in Experimental Animal (Wistar Rats)

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Estimation Of Contralateral Breast Dose For Tangential Breast Irradiation Using Gafchromic Film Ebt2

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 ...

Quality Control And Dosimetry Of A Wooden Couch Top For Megavoltage External Beam Radiotherapy.

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 0.5...

The Effects Of Crystalloid Solutions On The Human Blood Coagulation System

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 unc...

Assessment Of Mean Glandular Dose To Patients From Digital Mammography Systems

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 g...

Comparison Of Treatment Indices Between Telecobalt Machine And Linear Accelerator-Based Treatment Plans For Selected Conformal Radiotherapy Cases

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 Ra...

Neutron Capture Throw Interaction Neutron with Material

Abstract :-neutron capture, type of nuclear reaction in which a targetnucleus absorbs a neutron (uncharged particle), thenemits a discrete quantity of electromagnetic energy(gamma-ray photon). The target nucleus and the productnucleus are isotopes, or forms of the same element. Thusphosphorus-31, on undergoing neutron capture, becomesphosphorus-32. The heavier isotope that results may beradioactive, so that neutron capture, which occurs withalmost any nucleus, is a common way of pro...

Verification and Monitoring of Radiation using Invivo and In-vitro Dosimetry in External Beam Radiotherapy in Libya

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...

Assessment of Grid Alignment of X-Ray Units in Khartoum State.

AbstractThis 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 ...

Assessment Of Design Of Nuclear Medicine Department Design And Radiation Safety

ABSTRACTThe 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 inthe departments, in the period from...

Assessment Of Gamma Camera Quality Control Performance In National Cancer Institute -Wad Madani

AbstractThis 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...


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