Martina Heckmann, Michael Uder, Werner Bautz, Marc Heinrich
{"title":"Diagnose der Pilzpneumonie in der Thorax-CT","authors":"Martina Heckmann, Michael Uder, Werner Bautz, Marc Heinrich","doi":"10.1016/j.rontge.2008.03.004","DOIUrl":"10.1016/j.rontge.2008.03.004","url":null,"abstract":"<div><p>The importance of fungal infection of the lung in immunocompromised patients has increased substantially during the last decades. Numerically the most patients are those with neutropenia, e.g. patients with malignancies or solid organ and stem cell transplantation, chemotherapy, corticosteroid use and HIV infection. Although fungal infections can occur in immunocompetent patients, their frequency in this population is rare.</p><p>The clinical symptoms such as fever accompanied with non-productive cough are unspecific. In some patients progression to hypoxemia and dyspnea may occur rapidly. In spite of improved antifungal therapy morbidity and mortality of these infections are still high. Therefore an early and non-invasive diagnosis is very important. That is why CT and even better High-Resolution-CT (HR-CT) is a very important modality in examining immunocompromised patients with a probability of fungal infection. CT is everywhere available and, as a non-invasive method, able to give the relevant diagnose efficiently.</p><p>This paper should give an overview about the radiologic findings and possible differential diagnosis of diverse pulmonary fungal infections in CT. Pneumonias caused by Aspergillus, Cryptococcus, Candida, Histoplasma, Mucor and Geotrichum capitatum are illustrated.</p></div>","PeriodicalId":76505,"journal":{"name":"Rontgenpraxis; Zeitschrift fur radiologische Technik","volume":"56 6","pages":"Pages 207-218"},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.rontge.2008.03.004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"28051326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Verfeinertes Staging von hilusnahen Bronchialkarzinomen durch EKG-gegatete Mehrschicht-Spiral-CT - Fallbeschreibung","authors":"Susanne Ohlmann , Ralf Nowak , Armand Daliri , Rainer Michulla , Jens J. Froelich","doi":"10.1016/j.rontge.2007.04.001","DOIUrl":"10.1016/j.rontge.2007.04.001","url":null,"abstract":"<div><p><span>Equivocal initial CT-based staging in 2 patients with hilar bronchial neoplasms<span> was reassessed with retrospective ECG-gated Multislice-CT and optimized examination parameters prior to definition of treatment. An initially suspected irresectable T</span></span><sub>4</sub> tumor with mediastinal infiltration was downstaged to T<sub>2</sub><span> in one case, while tumor infiltration into the left atrium<span> could be confirmed in the other case. In doubtful conditions, ECG-gated multislice CT with optimized examination parameters may be helpful for refined staging in patients with hilar bronchial neoplasms, thus possibly influencing treatment strategies.</span></span></p></div>","PeriodicalId":76505,"journal":{"name":"Rontgenpraxis; Zeitschrift fur radiologische Technik","volume":"56 5","pages":"Pages 185-190"},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.rontge.2007.04.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"28051298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H. Brunner , S. Fröhner , J. Brunn , M. Wagner , F.H. Gietzen , S. Kerber , R. Schmitt
{"title":"Klinische Wertigkeit der Dual-Source-Computertomographie (DSCT) in der Primärdiagnostik der koronaren Herzkrankheit","authors":"H. Brunner , S. Fröhner , J. Brunn , M. Wagner , F.H. Gietzen , S. Kerber , R. Schmitt","doi":"10.1016/j.rontge.2007.06.003","DOIUrl":"10.1016/j.rontge.2007.06.003","url":null,"abstract":"<div><p>Dual-source-CT-technology (DSCT) improves temporal resolution of cardiac computed tomography to 83<!--> <!-->ms per heart-phase. In this study, the clinical performance of this new method is evaluated.</p></div><div><h3>Materials and Methods</h3><p>In fifty patients (33 male, 17 female; age 50±13 years) with suspected coronary heart disease, CT angiography (slice thickness 0,75<!--> <!-->mm, contrast-agent 60–80<!--> <!-->ml iomeprol) was performed with a Somatom Definition scanner. Based on the coronary 15-segment-model of the AHA, scores for image quality and lumen reduction were established to enable the observer, to give recommendations for further therapy.</p></div><div><h3>Results</h3><p>Out of 750 possible AHA-segments, 655 were depicted (87,3%). 591 segments (90,2%) were assessed without any limitation of quality, 49 (7,5%) segments showed moderate, and 15 (2,3%) segments severe limitation in image quality. 508 (77,6%) segments were without pathological findings, 92 (14,0%) segments had minimal atherosclerotic lesions, 42 (6,4%) segments suffered from stenoses with lumen reduction less than 70%, and 13 (2,0%) showed significant stenoses of more than 70%. In 31 patients (62%), coronary heart disease was ruled out by CT angiography without any need for further non-invasive or invasive diagnostics. 8 patients (16%) underwent stress-testing for ischemia. In 11 (22%) patients coronary angiography was recommended, and DSCT findings were confirmed in 10 cases. Only one LCx stenosis was overestimated in DSCT.</p></div><div><h3>Conclusion</h3><p>Contrast-enhanced DSCT is a powerful tool in diagnosis of coronary heart disease. 98% of coronary segments could be assessed in diagnostic quality, and at least 90% of haemodynamically significant coronary stenoses were detected.</p></div>","PeriodicalId":76505,"journal":{"name":"Rontgenpraxis; Zeitschrift fur radiologische Technik","volume":"56 5","pages":"Pages 155-163"},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.rontge.2007.06.003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"28051331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Magnetresonanztomographie von Spitzentanz in aufrechtem Stand unter Belastung (Weight bearing upright Magnetic Resonance Imaging of pointe dancing)","authors":"Oliver Peter Graber, Wolfgang Oberthaler","doi":"10.1016/j.rontge.2007.06.002","DOIUrl":"10.1016/j.rontge.2007.06.002","url":null,"abstract":"<div><p>Weight-bearing upright Magnetic resonance imaging (MRI) „en pointe“ is the ideal tool for research in the field of functional anatomy of pointe dancing and pointe dancing related medicine.</p></div>","PeriodicalId":76505,"journal":{"name":"Rontgenpraxis; Zeitschrift fur radiologische Technik","volume":"56 5","pages":"Pages 195-198"},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.rontge.2007.06.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"28051300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Siegfried A Schwab, Werner Bautz, Michael Uder, Michael A Kuefner
{"title":"Der von Meyenburg Komplex","authors":"Siegfried A Schwab, Werner Bautz, Michael Uder, Michael A Kuefner","doi":"10.1016/j.rontge.2008.03.005","DOIUrl":"https://doi.org/10.1016/j.rontge.2008.03.005","url":null,"abstract":"<div><p>The von Meyenburg complex (VMC) describes bile duct hamartomas and presents a rare, benign incidental finding in liver imaging. We report on a 61-year-old man, who was referred for a follow up study 14 years after remission of Hodgkin's disease. Computed tomography (CT) revealed multiple hypodense lesions throughout the liver, primary suggesting recurrent Hodgkin's disease. Previous CT-examinations, which were obtained at a later date, showed those lesions in identical distribution and morphology over the years, leading to diagnosis of multiple bile duct hamartomas (VMC).</p><p>Making imaging-based diagnosis of VMC including ultrasound, CT and magnetic resonance imaging is a challenging task for the radiologist. Based on literature research findings, the impact of different modalities in the diagnostic work-up of VMC is discussed.</p></div>","PeriodicalId":76505,"journal":{"name":"Rontgenpraxis; Zeitschrift fur radiologische Technik","volume":"56 6","pages":"Pages 241-244"},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.rontge.2008.03.005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91727124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Michael A. Kuefner, Marc Heinrich, Werner Bautz, Michael Uder
{"title":"Empfehlungen zur Prophylaxe der Nebenwirkungen bei intravasaler Applikation jodhaltiger Kontrastmittel","authors":"Michael A. Kuefner, Marc Heinrich, Werner Bautz, Michael Uder","doi":"10.1016/j.rontge.2008.03.001","DOIUrl":"https://doi.org/10.1016/j.rontge.2008.03.001","url":null,"abstract":"<div><p>Iodinated contrast media are widely used in computed tomography and angiography. Adverse reactions such as contrast-medium induced nephropathy (CIN), anaphylactoid reactions and iodine-induced thyrotoxicosis are associated with intravasal administration of contrast agents. Iodinated contrast agents are generately considered to be safe, but in rare cases they can cause severe life threatening situations.</p><p>In this review we present an overview about the incidence, pathways, and risk factors of adverse reactions. Simple schemes including hydration protocols for prevention of CIN, medication for prophylaxis of iodine-induced thyrotoxicosis with thyreostatics and anaphylactoid reactions with histamine antagonists and corticosteroids are suggested.</p></div>","PeriodicalId":76505,"journal":{"name":"Rontgenpraxis; Zeitschrift fur radiologische Technik","volume":"56 6","pages":"Pages 199-206"},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.rontge.2008.03.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90029194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rüdiger Schulz-Wendtland, Michael Lell, Evelyn Wenkel, Cathrin Böhner, Marc-Steffen Dassel, Werner Bautz
{"title":"DR (a-Se) versus CR (DLR) – ist eine Verbesserung der Treffsicherheit möglich? Eine retrospektiv klinisch/histologische Analyse (n=100)","authors":"Rüdiger Schulz-Wendtland, Michael Lell, Evelyn Wenkel, Cathrin Böhner, Marc-Steffen Dassel, Werner Bautz","doi":"10.1016/j.rontge.2006.10.001","DOIUrl":"10.1016/j.rontge.2006.10.001","url":null,"abstract":"<div><h3>Purpose</h3><p>A retrospective clinical-histological study to determine the diagnostic accuracy using high-resolution digital phosphor storage plates (CR) (hardcopy) and full-field digital mammography (DR) (hardcopy) for microcalcifications and focal lesions (BI-RADS<sup>™</sup> category 4 or 5) (<em>n</em>=100).</p></div><div><h3>Materials and Methods</h3><p>From 01/2004 to 06/2004, 100 patients underwent digital storage plate mammography (CR) and, after diagnosis and preoperative wire localization, full-field digital mammography (a-Se) (DR) with the same exposure parameters. Five investigators retrospectively determined the diagnosis after the operation from randomly distributed mediolateral views (hardcopy reading). These results were correlated with the final histology.</p></div><div><h3>Results</h3><p>The accuracy of digital storage plate mammography (CR) and full-field digital mammography (DR) was 73% and 76% for all findings (<em>n</em>=100), 74%, 78% for microcalcifications (<em>n</em>=50) and 72%, 74% for focal lesions (<em>n</em>=50). The overall results showed no difference.</p></div><div><h3>Conclusion</h3><p>Our findings indicate equivalence of high-resolution digital phosphor storage plate mammography (CR) and full-field digital mammography (a-Se) (DR).</p></div>","PeriodicalId":76505,"journal":{"name":"Rontgenpraxis; Zeitschrift fur radiologische Technik","volume":"56 4","pages":"Pages 129-135"},"PeriodicalIF":0.0,"publicationDate":"2007-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.rontge.2006.10.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"26230368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H.T. Eich , A. Schneeweiß , R. Skripnitchenko , K. Hansemann , A. Goßmann , R.-P. Müller
{"title":"Aufbau eines teleradiotherapeutischen Netzwerks für Lymphompatienten im Rahmen des Kompetenznetzes Maligne Lymphome","authors":"H.T. Eich , A. Schneeweiß , R. Skripnitchenko , K. Hansemann , A. Goßmann , R.-P. Müller","doi":"10.1016/j.rontge.2006.07.001","DOIUrl":"https://doi.org/10.1016/j.rontge.2006.07.001","url":null,"abstract":"<div><h3>Purpose</h3><p>The aim of the subproject “Radiotherapy” within the competence network malignant lymphoma, funded by the Federal German Ministry of Education and Research (BMBF), was to build-up an electronic imaging transfer between five University departments of Radiation Oncology to improve communication between study centers and reference centers.</p></div><div><h3>Materials and Methods</h3><p>We describe our experiences with these modern teleradiotherapeutic possibilities, its feasibility within multicentric clinical trials.</p></div><div><h3>Results</h3><p>Telemedical functions could successfully be integrated into the existing quality asssurance programs of radiotherapy. Since January 2001 more than 700 patients (trials HD10–HD15 of the German Hodgkin Study Group, GHSG) could be assessed after digital transfer via internet, on mobile data carriers or an ISDN-connection in the radiotherapy reference center Cologne. Transfer of digital imaging between participating study centers and the radiotherapy reference center allows immediate or a short-term evaluation of adequacy of treatment fields by expert radiation oncologists before the start of radiotherapy. This improves dialogue and consensus between radiotherapy reference centers and study centers and thus contributes towards high radiotherapy quality for lymphoma patients.</p></div><div><h3>Conclusion</h3><p>The long-term aim is to network all those hospitals, institutions and private facilities taking part in the GHSG trials to achieve an integrated system of cooperation. This improves dialogue and consensus between the radiotherapy reference center and the study centers and thus contributes towards high radiotherapy quality for patients with Hodgkin's lymphoma.</p></div>","PeriodicalId":76505,"journal":{"name":"Rontgenpraxis; Zeitschrift fur radiologische Technik","volume":"56 4","pages":"Pages 145-151"},"PeriodicalIF":0.0,"publicationDate":"2007-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.rontge.2006.07.001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92012603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hans Theodor Eich , Oliver Micke , M. Heinrich Seegenschmiedt
{"title":"Radiotherapie der endokrinen Orbitopathie – State of the Art und Literaturübersicht","authors":"Hans Theodor Eich , Oliver Micke , M. Heinrich Seegenschmiedt","doi":"10.1016/j.rontge.2006.07.002","DOIUrl":"https://doi.org/10.1016/j.rontge.2006.07.002","url":null,"abstract":"<div><p>Graves’ ophthalmopathy (GO), the most frequent extrathyroidal manifestation of Graves’ disease, is a disorder of autoimmune origin, the pathogenic mechanisms of which are still incompletely understood. Although GO is severe in only 3–5% of affected individuals, quality of life is severely impaired even in patients with mild GO. The role of radiotherapy in the management of GO is discussed controversially. However, recent randomized clinical trials have, with one exception, confirmed that orbital radiotherapy is an effective and safe therapeutic procedure for GO. This article describes the sequences, dosages and fractionation schemes as well as the risks and side effects of the radiotherapy.</p></div>","PeriodicalId":76505,"journal":{"name":"Rontgenpraxis; Zeitschrift fur radiologische Technik","volume":"56 4","pages":"Pages 137-144"},"PeriodicalIF":0.0,"publicationDate":"2007-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.rontge.2006.07.002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92012604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}