Research Papers/Topics in Medical Physics

Evaluation of CT Brain Protocols, Image Quality and Radiation Dose

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...

Sexual Behaviors of People Living with Hiv/Aids, Receiving Treatment at District Hospital Agbani, Enugu State.

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...

Assessment of medical students’ knowledge, attitude and practice towards medical waste management in KIUTH in Bushenyi Uganda

TABLE OF CONTENTSDECLARATION ............................................................................................................................ iAPPROVAL: ................................................................................................................................. iiKEY DEFINITIONS; ................................................................................................................... vLIST OF ACRONYM: ....................................................

Prevalence and Factors Associated with Preterm Births in Uganda: A Case Study of Kiryandongo District Referral Hospital.

Table of ContentsDECLARATION ............................................................................................................................ iiAPPROVAL ..................................................................................................................................iiiACKNOWLEDGEMENT............................................................................................................. ivDEDICATION.................................................................

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, th...

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 ...

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 ...

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

TABLE OF CONTENT Title page                                                                                                                   i Declaration                                                                                                                 ii C...

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 into ...

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 0.5cm and 5cm fo...

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 unclear....

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 groups...

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 Radiot...

Neutron Capture Throw Interaction Neutron with Material

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...


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