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1133. Strictures of the male urethra: how to perform and evaluate radiourethrography and sonourethrography to avoid mistakesDarja Babnik-Peskar, Alenka Višnar-Perovič, 2000, izvirni znanstveni članek Povzetek: Introduction. Precise evaluation of the uretheral stricture localisation, length, depth and quality of wall changes are necessary for the selection of the optimal treatment to prevent recurrences. Decision for urethral dilatation, internal urethrotomy or open surgery depends on urethroscopic, radiourethrographic-RUG, and recently, according to MC Annich, also sonourethrographic-SUG results. SUG adds information about the depth and density of spongiofibrosis. Previously published findings of RUG length underestimation, compared to SUG and endoscopy, were responsible for inappropriate treatment and recurrences. In our article, we evaluate SUG as a new imaging method in the diagnosis of uretheral strictures and treatment planning, and describe both imaging methods together with usual pitfalls in performance or interpretation, possible reason for incorrect length measurements, and RUG length underestimation. Patients and methods. In the period of 20 months, we evaluated SUG compared to RUG and endoscopy in 51/130 males with suspected urethral strictures. Results. Compared to RUG, sonographywas correct in 92% radiographycally detected strictures. Length measurements by sonography were 22% shorter than radiographic lengths, which could be explained by radiographic magnification, as it was proved with wire measure placed on penis. Considering radiographic magnification, we did not find important differences in any measurement. Opposite to previously published RUG results compared to endoscopy and SUG, radiographic length underestimation was not found. Conclusions. The combination of both imaging methods provides optimal information about urethral stricture anatomy. We conclude that published radiographic length underestimation could be only a misinterpretation. (Abstract truncated at 2000 characters).
Objavljeno v DiRROS: 25.01.2024; Ogledov: 218; Prenosov: 52
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1134. Assessment of social effects in asset managementDarko Kokot, Alfred Weninger-Vycudil, 2021, objavljeni znanstveni prispevek na konferenci Povzetek: The transnational European CEDR project ISABELA (Integration of social aspects and benefits into lifecycle asset management) was launched to define a common basis for social impact assessment in asset management. The aim was to define a holistic asset management framework for social key performance indicators (S-KPIs) and to model social benefits in terms of social effects (monetary and non-monetary), social backlog and social risk. These project results are becoming increasingly important in the context of evaluating different maintenance strategies for road infrastructure networks. While decision makers need to present the consequences of their maintenance strategies and policies on both technical and social levels, ISABELA showed how social aspects can be an integrated part in asset management frameworks, how to present social impacts and how to discuss maintenance needs using social aspects. The project aimed to identify clear and justifiable social key performance indicators in combination with existing technical parameters, taking into account different stakeholders and their needs and expectations. To this end, ISABELA considers maintenance aspects such as traffic availability, disturbance and efficiency (travel time, vehicle operating costs, etc.), road safety (fatal and serious accidents related to asset condition), environment (noise, air pollution, natural resources, etc.) and socio economy (asset value, wider social effects, etc.). In addition to the S-KPIs, ISABELA proposed a decision-making process for the selection of appropriate parameters and models, and demonstrated the assessment of social effects with practical examples.
Ključne besede: CEDR, ISABELA
Objavljeno v DiRROS: 25.01.2024; Ogledov: 232; Prenosov: 134
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Gradivo ima več datotek! Več... |
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1136. Renal cell carcinoma in the ectopic kidney prospects of diagnosting and treatment of the carcinoma of the kidney: case reportErika Brenčič, Marjeta Stanovnik, Mojca Glušič, 2000, strokovni članek Povzetek: Background. An extensive use of ultrasonography and computed tomography have enormously contributed to the early detection of adenocarcinoma of kidney taking into consideration that they have been so far often detected by chance.In addition to provide us with an image of a tumor and contributing to define more easily the nature of tumor, MRI is most helpful in detecting the infiltrations of tumor into its surroundings and changes in the veins. Case report. This case report presents the patient with adenocarcinoma of the ectopic kidney. The ultrasonography, computed tomography and magnetic resonance imaging detected and abundant non-homogenous tumor mass in pelvis minor. Additionally to the suspected ectopia of one of the kidney, it was alsosuspected that there was another pathological process of different etiology too. This suspicion was based on the detection of a different tumor mass in between the intestinal loops. Two months after the nonradical excisionof the adenocarcinoma from the ectopic kidney, the following changes were observed: progress of the residual tumor in the pelvis minor and the tumor in between the intestinal loops (that was not removed during the first operation). The patient was given immunochemotherapy and local radiotherapy. Conclusions. According to the available data in literature, the localization of tumor in ectopic kidney is extremely rare.
Objavljeno v DiRROS: 24.01.2024; Ogledov: 256; Prenosov: 53
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1137. The role of sonographic evaluation of spinal canal in childrenŽiva Zupančič, 2000, pregledni znanstveni članek Povzetek: Background. Spinal sonography is a valuable diagnostic imaging modality as it has the ability to demonstrate good anatomic detail of the spinal canal, its contents, and the surrounding structures. The examination technique, the anatomy of the cord, the most common anomalies, and the evaluation of the sonography compared to magnetic resonance imaging are presented. Conclusions. Spinal sonography is recommended as the primary imaging modality for congenital anomalies of the lower spine in infants and as the screening modality for closed spinal dysraphism in infants and small children. The examination technique, the anatomy of the cord, the most common anomalies, andthe evaluation of the sonography compared to magnetic resonance imaging arepresented.
Objavljeno v DiRROS: 24.01.2024; Ogledov: 231; Prenosov: 51
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1138. Hydrocolonic sonography in the detection of large bowel diseaseDubravka Vidmar, 2000, izvirni znanstveni članek Povzetek: Background. The presence of fluid in the bowel lumen improves the sonographic visualisation of the gastrointestinal tract, thus permitting earlier and more accurate detection of pathological changes. Hydrocolonic sonographic (HS) is amethod of examination the colon after it has been cleaned and filled with water. Patients and methods. We have evaluated the method in a group of 56 patients by comparing its results with the findings of colonoscopy, double-contrast barium enema or surgery. Results. HS had an overall accuracy of 86%, a sensitivity of 81%, a specificity of 92%, a positive predictive value of 91% and a negative predictive value of 82%. Conclusions. The technique is not suitable for examination the rectum, but apart from that it is comparable in usefulness to double-contrast barium enema. The main limitation of HS is that it requires a lot of experience and skill on the partof the sonologist, which affects its acceptability for diagnostic evaluation of the colon.
Objavljeno v DiRROS: 24.01.2024; Ogledov: 270; Prenosov: 52
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1139. Magnetic resonance of the thoracic aortic diseasePavel Berden, 2000, pregledni znanstveni članek Povzetek: Conventional ECG gated spin-echo (SE) magnetic resonance imaging (MR) and magnetic resonance angiography (MRA) are excellent methods for diagnosing thoracic aortic disease. SE image provides a good spatial resolution for defining aortic anatomy and relationships to adjacent tissues. MRA shows flow but temporal resolution is inferior to conventional MR images. Contrast-enhanced 3D (three-dimensional) MRA is very accurate for defining thoracic aortic anatomy and is particularly good for defining branch vessel abnormality. The sensitivity and specificity for diagnosing aortic dissection are the highest in comparison to other modalities (echocardiography, CT angiography) and range from 95% to 100% and 94% to 100%, respectively. MR can define clearly the full diameter of aortic aneurysm and also shows the amount of thrombi within it and its craniocaudal extent. A combination of SE and cineMRA is usually necessary. The same sequence with contrast enhancement provides all the required information on the congenital abnormalities of the aorta. MR is very reliable in congenital aortic abnormalities, aortic aneurysmand aortic dissection in hemodynamically stable patients. It should beused for all chronic thoracic aortic disease and postsurgical follow-up. Unstable patients that need intensive hemodynamic monitoring are unsuitable for MR.
Objavljeno v DiRROS: 24.01.2024; Ogledov: 286; Prenosov: 57
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1140. Magnetic resonance of cardiac tumors and massesPavel Berden, 2000, pregledni znanstveni članek Povzetek: Cardiac tumors are rare and should be differentiated from nontumoral cardiac masses because of different therapeutic approach. For this purpose, spin-echo (SE) technique and gradient-echo (GE) technique are used in magnetic resonanceimaging (MR). The first provides anatomic evaluation of the heart andtissue characterization, while the second provides dynamic information on the blood flow and heart contraction. Cardiac myxoma is differential from thrombus by paramagnetic contrast agent administration. Their mobility is evaluated with GE technique. Lipomas and subacute hemorrhage have the same, high signal intensity on T1-weighted spin-echo image, therefore, the fat suppression technique is appropriate to recognize them. MR is used in evaluating the response of the malignant tumor to chemotherapy. GE MR is useful to differentiate between the thrombus and slow-flowing blood; the administration of gadolinium helps to distinguish the thrombus from the tumor.In patients suspected of having a cardiac tumor, echocardiography is thefirst method of choice. MR is used to confirm the findigs of echocardiography, to determine precisely the tumor location, extent, and its tissue characterization, to follow up patients under treatment, and to detect early tumor recurrence.
Objavljeno v DiRROS: 24.01.2024; Ogledov: 278; Prenosov: 56
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