ABSTRACT The aim of this study was in two to investigate; firstly, (i) location of radiosensitive organs in the interior of four (4) paediatric anthropomorphic phantoms, and, secondly, (ii) effectiveness of single and double bismuth thyroid shields, distance between shield and phantom surface, during paediatric multi-detector computed tomography (MDCT) using fixed tube current (FTC) and automatic exposure control (AEC) on dose reduction and image quality. Four (4) paediatric anthropomorphic p...
Abstract This study was aimed to study the temporal bone diseases using HRCT. Data was obtained retrospectively from 52 patients of different ages and gender who are selected from ENT hospital and clinically suspected of having symptoms related to the temporal bone such as ear discharge, conductive hearing loss, vertigo and facial palsy. traumatic patients wereexcluded. The study was done at Alzaytouna specialist hospital& Antalya medical center during 2016 year. HRCT images were obtained by...
Abstract Improvements in the benefit of CT have been so dramatic that a tendency exists to the overuse. CT is a diagnostic imaging modality giving higher patient dose in comparison with other radiological procedures. While the benefits of CT exceed the harmful effects of radiation exposure in patients, increasing radiation doses to the population have raised. The main objective of this work was to find an optimization approach to minimize the radiation dose to adult patients undergoing CT ex...
ABSTRACT Recently measuring of stroke volume by scintigraphy has been used as indicator of heart muscle ability to contract. This study aimed to identify and evaluate the stroke volume. Accordingly the data was collected from 50 patients at Elnilein medical center, department of nuclear medicine, during the period from 4/4/2011 to 24/8/2011. The patients were injected with a 99mTc-sestamibi (hexakis [2- methoxyisobutylisonitril]) and 99mTc-tetrofosmin (1, 2-bis [bis (2-ethoxyethyl)- phosphino...
Abstract This study was aimed to study the temporal bone diseases using HRCT. Data was obtained retrospectively from 52 patients of different ages and gender who are selected from ENT hospital and clinically suspected of having symptoms related to the temporal bone such as ear discharge, conductive hearing loss, vertigo and facial palsy. traumatic patients were excluded. The study was done at Alzaytouna specialist hospital&Antalya medical center during 2016 year. HRCT images were obtained by...
With the expanding use of the functional endoscopic sinus surgery (FESS), proper understanding of the sphenoid sinus anatomy has become increasingly important. Knowledge of the size and extent of pneumatization of sphenoid sinus is an important to avoid any complications during surgery. This descriptive study was conducted in Sudan - Khartoum to study the anatomical variations of sphenoid sinus among Sudanese using ct scan. 70 images of ct for para nasal sinus (35males and 35females) we...
Abstract: This study was conducted to evaluate the effective dose in adults during the examination of the brain computed tomography. The motivations for this study that frequency of the brain CT test is high and the radiation field of brain CT contain sensitive organ like eyes. By mathematical equation after it has been collecting the factors that affect the amount of radiation from producer ray tube in addition to the two factors CT radiation dose index (CTDI) and the dose length product (D...
ABSTRACT Liver is one of the most important organ in the human body, it performs a variety of vital functions. Liver cancer is a pathological disorder of the human that affects around 50 million people worldwide. The early detection and diagnosis of liver cancer is very important to facilitate the treatment process. The objective of this study is to design and develop an automated system for liver CT images diagnosis as normal or abnormal to help physicians in their diagnosis and treatment p...
ABSTRACT Quality assurance (QA) in all aspects of radiotherapy reduces the number of instances of accidental dose misadministration. Reduction of such errors and uncertainties plays an important role in the outcome of radiotherapy. As part of the audit supported by the IAEA in Ghana this study was designed to review the whole chain of activities in 3D conformal radiotherapy (3D-CRT) workflow, from patient data acquisition to treatment planning and dose delivery.The study focused on dosimetry ...
Spleen is enlarged in a variety of clinical conditions including infectious, infiltrative, immunologic and malignant states. Evaluation of splenic size is important in every physical examination of the abdomen by a physician.Determination of its size by palpation can be extremely inaccurate because spleen is never palpable till it is enlarged 2 to 3 times its own size. The accurate diagnosis of splenic enlargement is a matter of considerable importance as it is a useful guide for arrivin...
Abstract This study was done to evaluate renal morphology in adult diabetic Sudanese patients. The purpose is to measure thickness and CT no. for both renal cortex and medulla for each kidney, as correlated with age, gender, duration and treatment of disease. The Study was done during the period from September 2015 to April 2016 at Asia Hospital and Omdurman Military Hospital, using CT machine. A sample of 50 subjects were collected (25 control group, 25 diabetic group). The findings showed ...
ABSTRACT Quality assurance (QA) in all aspects of radiotherapy reduces the number of instances of accidental dose misadministration. Reduction of such errors and uncertainties plays an important role in the outcome of radiotherapy. As part of the audit supported by the IAEA in Ghana this study was designed to review the whole chain of activities in 3D conformal radiotherapy (3D-CRT) workflow, from patient data acquisition to treatment planning and dose delivery.The study focused on dosimetry...
What is computer? Computer can be defined as an electronic device that operates under the control of instruction that is installed in its memory units. It can also mean an electronic device that receive data as an input, process and bring out the result as an output. With the definition above, one can understand that computer is just a device (electronic device) which operate and control other parts. What is computer system? Computer system like any other system is the combination of interna...
ABSTRACT To determine the liver CT number among Sudanese people using spiral CT. A designed data sheet was used to collect data from 50 patients refer to CT abdomen , which was done using images of slice thickness (5mm) and slice gap (7-10mm) , three readings were taken from three points in axial cuts. The mean CT number of liver among the males was found to be 57.24±7.98 HU , and that among females was 56.19±10.77 the mean different was found to be 1.05 which was statically insignificant ...
ABSTRACT BACKGROUND Intussusception is the invagination of a segment of the gastrointestinal tract into the lumen of an adjacent segment. It is a rare cause of intestinal obstruction in adults and poses a diagnostic dilemma when present. CASE PRESENTATION This is a report of a sixty year-old male who presented to the Emergency Department of The University College Hospital, Ibadan, Nigeria with peri-umbilical pain of one week duration and inability to pass faeces for five days. There was a pal...