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EN
Echinococcosis, is a parasitic disease of tapeworms in the genus Echinococcus. We report an unusual case of a 17-year-old girl with asymptomatic hepatic echinococcosis. The patient was admitted to the hospital after a car accident to perform routine radiological exams. Abdominal ultrasonography revealed a cystic mass of size 65 × 52 mm in the right lobe of liver. Computed tomography (CT) confirmed the cystic mass of size 67 mm x 59 mm x 56 mm in the right lobe of the liver. A routine brain CT was normal. Laboratory tests revealed a high count of eosinophil count (6.9%). Serological tests confirmed Echinococcus granulosus. The patient was transferred to the department of infectious diseases for further treatment.
EN
Introduction. Fibromuscular dysplasia is an idiopathic, non-inflammatory and non-atherosclerotic disease that affects the walls of arteries (mostly renal and carotid arteries). Histological classification distinguishes three main types of the disease, depending on the structural changes occurring in one of the three layers of arterial vessel walls. Objective. We present here a case of fibromuscular dysplasia affecting the internal carotid arteries. Case description. This article describes the case of a 52-year-old female patient with hypertension, hyperlipidemia, and a cardiac pacemaker in whom computed tomography angiography revealed a narrowing of the internal carotid arteries without atherosclerotic symptoms. We describe the diagnostic methods and various types of treatment that the patient suffering from fibromuscular dysplasia was subjected to. Conclusions. Due to a low detection rate of fibromuscular dysplasia, if the disease is suspected, all available diagnostic methods should be employed. Taking into account the unknown etiology of the disease, it is not possible to use a preventive therapy, or a therapy focused on stalling the progression of the disease
EN
Introduction: Cerebral cavernous malformations (CCMs) are one of the most common vascular malformations of the central nervous system. Symptoms of CCMs are not typical; the disease can be asymptomatic or be manifested by a wide range of neurological symptoms. Purpose: To evaluate chosen epidemiologic and clinical issues as well as advanced imaging diagnostics of CCMs in computed tomography and magnetic resonance imaging. Materials and methods: The study was based on retrospective analysis of CT and MRI examinations from the 5 years period. The analysis covered 61 persons, 29 males, and 32 females. The CCMs were diagnosed based on MRI examination in 43 patients and CT in 13 patients. Results: The rate of CCMs occurrence in own material was 0.2%. Single lesions were present in 90.2%, while multiple in 9.8% of cases. Supratentorial CCMs were observed in 77% of cases whereas subtentorial in 23%. Mean size of CCMs in the supra- and subtentorial area equaled 10.6±6.3 and 15.1±5.8 mm, respectively (p<0.05). Clinical symptoms occurred in 65.8% of patients, most frequently in patients with CCMs above 5 mm or with subtentorial lesions. All CCMs were hyperdense in CT images, with calcifications in 13.1%. In MRI, malformations showed diverse intensity of the central part with peripheral low-intensity rim of hemosiderine deposits in T2-weighted images. Conclusions: The clinical symptoms occur in most cases of CCMs. These patients require periodic follow-up MRI examinations, specifically those with haemorrhagic incidents or epileptic seizures, with large size or subtentorial CCMs.
EN
Introduction. Computed tomography (CT) is inexpensive radiological examination of high diagnostic effectiveness. However, common use of CT tests has led to increased exposure to ionizing radiation in the population. Aim. To assess the effect of organ dose modulation (ODM) technique on the radiation dose received by patients during head CT scan. Material and methods. A retrospective analysis of 120 tests in two groups of patients who had CT scans without and with ODM. Every group consisted of 60 people (30 women and 30 men in each). The ability to perform tests in two algorithms (without and with ODM) resulted from the fact that after installing the apparatus, tests were carried out using standard technique, and only then the ODM function was launched. Results. We found that during examinations with ODM, patients received a reduced dose of ionizing radiation. The mean DLP value with ODM is 9.4% lower than the mean DLP value without ODM by comparing the tests with and without contrasting agent. The mean DLP value obtained in men using ODM was 11.9% lower than the mean dose without ODM, and in women this difference was 6.6%. Conclusion. The mean DLP value received by men with ODM was by 11.9% lower than the mean dose without ODM, and in women this difference was 6.6%. Patients receive a lower dose both in tests with and without a contrasting agent compared to the tests where ODM was not used. A statistical significance of the obtained results was found.
EN
The phenomena of neuroinvasiveness, latency and reactivation are characteristics of the Herpes simplex virus (HSV). The Herpes simplex encephalitis (HSE) prevalence rate is 1 up to 3 in a million cases, which is about 10-20% of all viral encephalitis cases. The course of the disease shows the prodromal period and the symptomatic one; the clinical course is usually rapid and may lead to sudden death. As for the symptomatic period, there are usually neurological focal symptoms and seizures as well as fluctuating consciousness leading to coma. The mortality rate in the course of HSE in non-treated individuals reaches up to 70%, it is lowered to 15% with early treatment with Acyclovir. However, most patients present persistent neurological and cognitive disorders. There are usually no changes in the CT scan as far as the early stage of the disease is concerned. Thus, the imaging technique of choice is MR scan, which shows the changes already on the second day after clinical symptoms. On the basis of MR scans, more or less symmetrical hyperintense cortical and subcortical white matter lesions occur on T2-weighted images with gyral and/or leptomeningeal contrast enhancement. MR spectroscopy can be helpful in lesion diagnosis and monitoring, while diffusion-weighted imaging (DWI) can be used to evaluate inflammatory process activity. Differentiation of HSE in imaging should consider limbic encephalitis, gliomatosis cerebri, cerebral ischemia, cerebral edema after seizure episodes, and MELAS syndrome (Mitochondrial Encephalomyopathy, Lactic Acidosis, and Stroke-like episodes), among others. HSV identification in cerebrospinal fluid by PCR (polymerase chain reaction) method is a confirmation of the diagnosis.
PL
W artykule przedstawiono możliwości zastosowania metod inżynierii odwrotnej w kryminalistyce. Dokonano przeglądu dostępnych technologii reverse engineering oraz podano przykłady ich wykorzystania we wspomaganiu czynności kryminalistycznych. Przedstawiono metodę rekonstrukcji obiektów za pomocą technicznej tomografii komputerowej oraz podano przykład zastosowania tej metody do analizy geometrii łusek pochodzących od odstrzelonych nabojów pistoletowych kal. 7,62 mm wz. 30 (powystrzałowych kalibru 7,62 mm).
EN
The paper presents the possibility of using reverse engineering in forensic science. Available reverse engineering technologies and examples of their use as a helpful forensic research tool are reviewed. A method of reconstruction of objects using computed tomography technology was described, as well as an example the application of this method to the analysis of the geometry of ignited 7.62 mm calibre model 30 pistol cartridge shells (7.62 mm calibre projectile).
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