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Seider D, Reinhardt M, Zajonz D, Voigt P, Kahn T, Moche M. [Analysis of the quality of life of patients with osteoid osteoma before and after radiofrequency ablation treatment]. Chirurg 2019; 90:851-857. [PMID: 30783725 DOI: 10.1007/s00104-019-0818-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
BACKGROUND The aim of this study was to investigate the effectiveness of the treatment of osteoid osteomas (OO) by radiofrequency ablation (RFA). In particular, the recurrence rate and the improvement in the quality of life as assessed by the reduction of pain intensity were evaluated. METHODS Retrospective analysis of 26 patients after RFA of an OO and prospective analysis of 14 patients using a self-developed quality of life questionnaire. The questionnaire, the electronic patient file and the histopathological findings were processed. RESULTS An average of 22 months passed between the first onset of complaints and the causative treatment by RFA. After RFA, there was a significant reduction in pain symptoms and thus an increase in the quality of life. These results confirm that RFA from OO is a safe and efficient treatment procedure. DISCUSSION In order to avoid long-term conservative treatment attempts and to reduce effects on the musculoskeletal system, a timely RFA of OO should be performed after diagnosis.
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Linder N, Rakete T, Stange R, Solty K, Kahn T, Busse H. In-vitro
validation of MR-based fat quantification at 1.5 T. Biomed Phys Eng Express 2018. [DOI: 10.1088/2057-1976/aae646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Fahnert J, Borte G, Quäschling U, Kahn T, Pönisch W. Vergleich tumor- versus therapieassoziierter neurologischer Komplikationen der spinalen Achse bei Non-Hodgkin Lymphomen unter besonderer Berücksichtigung des Plasmozytoms. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Maiwald B, Petersen T, Kahn T, Josten C, Fakler J, Hoffmann K, Stumpp P. Ist die inflationäre Entwicklung der Notfall-CT der Halswirbelsäule gerechtfertigt? ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1601386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Schaudinn A, Linder N, Hudak A, Stange R, Garnov N, Stocker G, Hacker U, Kahn T, Busse H. Semi-automatische Software zur zeiteffizienten CT-basierten Quantifizierung des abdominellen Fettgewebes. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Leifels L, Stumpp P, Purz S, Kahn T, Surov A. Multiparametrische Bildgebung bei Plattenepithelkarzinomen der Kopf-Hals-Region. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Petersen T, Fuchs J, Bremicker K, Maiwald B, Kahn T, Moche M. Selektive Embolisation aortaler Seitenäste vor EVAR als Strategie zur Verhinderung relevanter Typ 2 Endoleaks. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Busse H, Garnov N, Brandmaier P, Seider D, Alhonnoro T, Pollari M, Kahn T, Moche M. Stand-alone Auswerte-Tool für CT-Perfusion der Leber. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Voigt P, Schob S, Gottschling S, Kahn T, Surov A. Systemische Luftembolien nach Endoskopie – eine Übersicht. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Schüer M, Kahn T, Josten C, Fakler J, Stumpp P. Routinemäßige Ultraschallverlaufskontrollen bei schwer verletzten Patienten nach unauffälligem Ganzkörper-CT sind Zeitverschwendung. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1601389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Voigt P, Fahnert J, Schramm D, Bach AG, Kahn T, Surov A. [Clinically relevant incidental cardiovascular findings in CT examinations]. Radiologe 2017; 57:296-301. [PMID: 28255791 DOI: 10.1007/s00117-017-0226-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND AND METHOD Incidental cardiovascular findings are a frequent phenomenon in computed tomography (CT) examinations. As the result of a dedicated PubMed search this article gives a systemic overview of the current literature on the most important incidental cardiovascular findings, their prevalence and clinical relevance. RESULTS The majority of incidental cardiovascular findings are of only low clinical relevance; however, highly relevant incidental findings, such as aortic aneurysms, thromboses and thromboembolic events can also occasionally be found, especially in oncology patients. CONCLUSION The scans from every CT examination should also be investigated for incidental findings as they can be of decisive importance for the further clinical management of patients, depending on their clinical relevance.
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Beimler M, Voigt P, Jansen-Winkeln B, Schob S, Kahn T, Surov A. CT pathologies of the small bowel – selected cases – Dünndarmpathologien in der Computertomografie – ausgewählte Fälle. ROFO-FORTSCHR RONTG 2016; 188:1003-1006. [PMID: 27784105 DOI: 10.1055/s-0042-115417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Voigt P, Kahn T, Surov A. Akutes Leriche-Syndrom als Nebenbefund im MRT der Wirbelsäule. ROFO-FORTSCHR RONTG 2016; 188:867-8. [DOI: 10.1055/s-0042-106976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Klengel A, Stumpp P, Klengel S, Böttger I, Roenisch N, Kahn T. Vergleich von Diffusionsbildgebung und fettgesättigten protonendichtegewichteten Sequenzen zur Detektion traumatischer Knochenmarkläsionen nach Knietrauma. ROFO-FORTSCHR RONTG 2016. [DOI: 10.1055/s-0036-1581679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Schaudinn A, Linder N, Garnov N, Blüher M, Schütz T, Karlas T, Dietrich A, Kahn T, Busse H. Hochrechnung des viszeralen Fettvolumens auf der Basis weniger MRT-Einzelbilder: Abhängigkeit von Geschlecht, Alter und Adipositas-Grad. ROFO-FORTSCHR RONTG 2016. [DOI: 10.1055/s-0036-1581324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Maiwald B, Purz S, Voigt P, Barthel H, Kahn T, Sabri O, Stumpp P. Quantitativer Vergleich der ADC- und SUV-Werte bei Patienten mit neuroendokrinem Tumor im simultanen 68Ga-DOTATOC-PET/MRT. ROFO-FORTSCHR RONTG 2016. [DOI: 10.1055/s-0036-1581656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Garnov N, Linder N, Schaudinn A, Dietrich A, Lehmann S, Retschlag U, Oberbach A, Kahn T, Busse H. Einfluss einer bariatrischen OP auf das Fettgewebe: Follow-up-Charakterisierung mittels MRT. ROFO-FORTSCHR RONTG 2016. [DOI: 10.1055/s-0036-1581323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Fahnert J, Rasche F, Bode S, Petros S, Halbritter J, Stumpp P, Kahn T. Die Projektionsradiografie als praktikables und einfaches Modell lageabhängiger Flussstörungen als Frühkomplikation nach Implantation getunnelter Dialysekatheter. ROFO-FORTSCHR RONTG 2016. [DOI: 10.1055/s-0036-1581817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Stumpp P, Risy Y, Purz S, Gawlitza M, Sabri O, Kahn T. Vergleich von 18F-FDG-PET/CT und simultanem 18F-FDG-PET/MRT bezüglich des lokalen Stagings primärer Kopf-Hals-Tumoren. ROFO-FORTSCHR RONTG 2016. [DOI: 10.1055/s-0036-1581590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Diogo R, Purz S, Gawlitza M, Barthel H, Boehm A, Kahn T, Sabri O, Stumpp P. 18F-FDG-PET/CT und 18F-FDG-PET/MRT zur Diagnostik von HNO-Rezidivtumoren im Vergleich. ROFO-FORTSCHR RONTG 2016. [DOI: 10.1055/s-0036-1581591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Surov A, Stumpp P, Meyer H, Gawlitza M, Höhn A, Boehm A, Sabri O, Kahn T, Purz S. Simultanes 18F-FDG-PET/MRT bei Patienten mit Plattenepithelkarzinom der Kopf-Hals-Region: Zusammenhänge zwischen funktioneller Bildgebung und histopathologischen Parametern. ROFO-FORTSCHR RONTG 2016. [DOI: 10.1055/s-0036-1581773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Otto J, Schaudinn A, Linder N, Ganzer R, Stolzenburg J, Horn L, Garnov N, Kahn T, Moche M, Busse H. MR-gesteuerte Interventionen an der Prostata. ROFO-FORTSCHR RONTG 2016. [DOI: 10.1055/s-0036-1581876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Otto J, Reiss-Zimmermann M, Thörmer G, Schaudinn A, Garnov N, Stolzenburg J, Horn L, Moche M, Kahn T, Busse H. Prospektiver Vergleich von Bildqualität und Tumordetektion anhand der 3-T Prostata-MRT mit und ohne Verwendung einer Endorektalspule. ROFO-FORTSCHR RONTG 2016. [DOI: 10.1055/s-0036-1581867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Rasche FM, Keller F, Rasche WG, Schiekofer S, Kahn T, Fahnert J. Sequential therapy with cyclophosphamide and mycophenolic acid in patients with progressive immunoglobulin A nephropathy: a long-term follow-up. Clin Exp Immunol 2015; 183:307-16. [PMID: 26439797 DOI: 10.1111/cei.12719] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/01/2015] [Indexed: 11/29/2022] Open
Abstract
In progressive immunoglobulin (Ig)A nephropathy (IgAN), cyclophosphamide pulse therapy (CyP), high-dose intravenous immunoglobulins (IVIg) and mycophenolic acid (MPA) have been used to stop progressive loss of renal function, but disease progression may occur after the end of the initial treatment. Here, we report the long-term follow-up of patients with progressive IgAN with MPA as maintenance therapy after CyP (CyP-MPA). In a median observation time of 6·2 years, we analysed the slopes of the loss of renal function of 47 patients with biopsy-proven IgAN and treated with CyP. Thirty-one patients with further progression were treated with MPA maintenance for a median time of 5·2 years. Follow-up was compared with symptomatic therapy and IVIg as historically matched control groups. Median loss of renal function was reduced significantly from 0·9 ml/min to 0·1 ml/min per month with CyP (P < 0·05), and with MPA in patients with a relapse from -0·4 ml/min to -0·1 ml/min per month (P < 0·05) until the end of the study. Proteinuria decreased significantly from 1·6 g/l to 1·0 g/l after CyP, and during MPA treatment to 0·6 g/l (P = 0·001 Friedman test). Median renal survival time was in patients with CyP 10·5 years (range = 3·2-17·8), with CyP-MPA 10·7 years (range = 8·3-13·1), with IVIg 4·7 years (range = 2·6-6·6), and in untreated patients 1·2 years (range = 0·8-1·6; log-rank test P < 0·01). In patients with progressive IgAN, our long-term follow-up observation indicates that sequential CyP-MPA therapy maintains renal survival significantly.
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Brandmaier P, Purz S, Bremicker K, Höckel M, Barthel H, Kluge R, Kahn T, Sabri O, Stumpp P. Simultaneous [18F]FDG-PET/MRI: Correlation of Apparent Diffusion Coefficient (ADC) and Standardized Uptake Value (SUV) in Primary and Recurrent Cervical Cancer. PLoS One 2015; 10:e0141684. [PMID: 26551527 PMCID: PMC4638340 DOI: 10.1371/journal.pone.0141684] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 10/12/2015] [Indexed: 01/18/2023] Open
Abstract
Objectives Previous non–simultaneous PET/MR studies have shown heterogeneous results about the correlation between standardized uptake values (SUVs) and apparent diffusion coefficients (ADCs). The aim of this study was to investigate correlations in patients with primary and recurrent tumors using a simultaneous PET/MRI system which could lead to a better understanding of tumor biology and might play a role in early response assessment. Methods We included 31 patients with histologically confirmed primary (n = 14) or recurrent cervical cancer (n = 17) who underwent simultaneous whole-body 18F-FDG-PET/MRI comprising DWI. Image analysis was performed by a radiologist and a nuclear physician who identified tumor margins and quantified ADC and SUV. Pearson correlations were calculated to investigate the association between ADC and SUV. Results 92 lesions were detected. We found a significant inverse correlation between SUVmax and ADCmin (r = -0.532, p = 0.05) in primary tumors as well as in primary metastases (r = -0.362, p = 0.05) and between SUVmean and ADCmin (r = -0.403, p = 0.03). In recurrent local tumors we found correlations for SUVmax and ADCmin (r = -0.747, p = 0.002) and SUVmean and ADCmin (r = -0.773, p = 0.001). Associations for recurrent metastases were not significant (p>0.05). Conclusions Our study demonstrates the feasibility of fast and reliable measurement of SUV and ADC with simultaneous PET/MRI. In patients with cervical cancer we found significant inverse correlations for SUV and ADC which could play a major role for further tumor characterization and therapy decisions.
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