ABSTRACT The aim of this study was to characterize stroke lesions and normal brain tissue in computed tomography (CT) images of Nigerian patients using statistical texture descriptors, and to identify the class of texture descriptor that is most suitable for computer-aided diagnosis of stroke. Non-contrast CT images of 164 stroke patients were obtained in contiguous slices from the base of the skull to the vertex from two private radiodiagnostic centres. Initially, two experienced radiologis...
ABSTRACT Sphenoid sinus is surrounded by critical structures and this can make sphenoid sinus surgeries very dangerous. The aims of this research were to study the anatomical relationships between the sphenoid sinus and their important adjacent neurovascular structures using the multiplanar reconstruction technique and to measure some important surgical distances of sphenoid sinus including, roof, bottom, posterior wall, anterior wall, in terms of their relevancy to the Sudanese patients. Cor...
Triphasic liver CT enables characterization of a wide range of focal liver lesions. The general objective of the study is to evaluate the role of CT in diagnosis of liver lesions. And furthermore to determine which lesion in the liver with high incidence, and to find out the geographic distribution of the liver lesions in Sudan. Sixty patients found to have focal tumoral liver lesions were recruited for 4 months period and their triphasic CT scans findings were evaluated and later correlate...
Abstract This study was carried out to find the common sinuses diseases and evaluate the significance of computerized tomography (CT) scan in diagnosing sinus lesions and to determine the correlation between radiological and endoscopic findings as well to evaluate diagnostic value of nasal endoscopy and CT in diagnosing sinuses disease. The current study was obtained during the period extended from 2015 to 2017, at Prince Abdalazeez hospital - Arar -Saudi Arabia. A total of 96 patients with ...
Abstract Computerized angiography (CTA) is a standard tool for investigating vascular diseases .The aims of this study were to study Reference Diameters of Abdominal Aortic and Inferior Vena Cava of Sudanese Using Computed Tomography and to study the variation in aortic diameters with age and gender. A total of 200 patients (108 males and 92 females) with a mean age of 48.6 years consecutive adults free of cardiac or aortic structural disease or arrhythmia who referred for abdominal CT scann...
ABSTRASCT:- This descriptive study, conducted in the state of Khartoum in the period from April 2016 till October 2016 Hospital Zitouna International Specialist, by checking researcher random sample of Sudanese patients and of 50 patients aged between 32 and greater than 65-year-old goal of a researcher in this study to measure the dimensions of liver Sudanese taking four dimensions the following the measurement of the human liver, , the anterior posterior dimension of the left hepatic lobe ...
ABSTRACT The aim of this study is to estimate the effective dose and assess the lifetime attributable risk of cancer incidence of patients undergoing computed tomography scan at the KorleBu Teaching Hospital. Data on Volume CT Dose Index ( ) and Dose Length Product ( ) displayed on the scanner control console was recorded after confirmation of the results by performing independent checks on a phantom. The effective doses were estimated using the displayed and the anatomic region specific co...
ABSTRACT Weighted and average dose within a scan volume of a phantom have been evaluated and validated using two different devices and techniques. The Barracuda electrometer and Ion Chamber techniques were applied on a 16 slice Siemens CT scanner and the results compared to the console displayed CTDIw and CTDIvol valuesfor accuracy and compared to each other for validation purposes. With fixed exposure parameter of 130kVp and varying tube current-time products from 140mAs to 300mAs for the ...
Abstract Lumbar spine injuries continue to be an enormous public health problem even with modern medicine in the 21 century. Most patient mild stage, the remaining injuries are divided equally between moderate and severe categories. This study is statistical study, but through it the researcher reflected the social and economic impact of lumbar spine injuries. The main purpose of this study is to estimate variety and severity of lumbar spine injuries. This received in some CT diagnostic cent...
ABSTRACT The aim of this work was to assess the doses delivered to paediatric patients during computed tomography (CT) examinations of the head, chest and abdomen, and establishing regional diagnostic reference levels (RDRLs) for four age groups. The patient data, technique parameters and dose descriptors collected include: age, sex, tube voltage, tube current, rotation time, slice thickness, scan length, volume CT dose index (CTDIvol) and dose length product (DLP). Currently, paediatric CT ...
ABSTRACT A three-dimensional (3D) laser imaging system based on digital holography has been used as a tool for testing digital holography (DH) in the infrared (IR) range in several configurations; transmission and reflection mode. The feasibility of digital holography in the infrared region was demonstrated using two beam interferometric technique for recording holograms both in reflection and transmission type geometry which employs a pyroelectric sensor array detector. The materials used ...
Abstract The stroke is a medical emergency in which the blood supply to any portion of the brain is interrupted or reduced, alternative names: Cerebrovascular accident/ disease (CVA), cerebral infarction, cerebral haemorrhage. This study is a descriptive study and had been conducted at police hospital in a period from October 2016 to January 2017 with sample which was consisted from 50 patient CT brain images for patient having cerebral stroke. The aim of this Research to study of cerebral s...
Abstract The study was done to characterize foramen magnum using CTs and effect of diameter of base of the skull and height of patient on the diameter of foramen magnum. 50 patients (60% males and 40% females) were selected all the diagnosis as normal cranial CTs. This study was done in Abdoon SidAhmed Diagnostic Center and Alfaisal Specialized Hospital during the period from January to Marsh 2016. This study found the mean anterior posterior diameter FM in male subjects as 37.41mm (±3....
ABSTRACT The main objective of this work is to assess the integrity of structural shielding to validate the protection of the staff and the public for two selected general radiography and CT facilities. The assessment for general radiography was based on 729 examinations for facility A and 706 examinations for facility B. For computed tomography (CT) rooms, a total of 293 body and 190 head procedures were used for facility A, and 195 body and 160 head procedures for facility B. For general ra...
ABSTRACT The main objective of this work is to assess the integrity of structural shielding to validate the protection of the staff and the public for two selected general radiography and CT facilities. The assessment for general radiography was based on 729 examinations for facility A and 706 examinations for facility B. For computed tomography (CT) rooms, a total of 293 body and 190 head procedures were used for facility A, and 195 body and 160 head procedures for facility B. For general ra...