Výsledky vyhledávání - "Stefan O.R. Pfleiderer"

Clinical MR Mammography: Impact of Hormonal Status on Background Enhancement and Diagnostic Accuracy

Autor: W. A. Kaiser, Pascal A. T. Baltzer, Matthias Dietzel, Hartmut Peter Burmeister, Stefan O.R. Pfleiderer, Tibor Vag, Oumar Camara, Mieczyslaw Gajda

Publikováno v: RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren. 183:441-447

PURPOSE Hormonal stimulation can induce background enhancement (BE) in MR mammography (MRM). This fact has been assumed to decrease the accuracy of MRM. Consequently, this report investigates: 1. The prevalence of BE in postmenopausal vs. premenopaus

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2eb2f4fa87052760a8387bca1a1c321
https://doi.org/10.1055/s-0029-1246072

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MRI-guided interventions of the breast

Autor: Werner A. Kaiser, Stefan O.R. Pfleiderer, Pascal A. T. Baltzer

Publikováno v: Journal of Magnetic Resonance Imaging. 27:347-355

MRI has proven to be a very reliable diagnostic tool in the detection and differential diagnosis of breast lesions. Some lesions are, even in retrospect, not detectable in x-ray or ultrasound images but MRI is able to detect lesions at a much smaller

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::288b67baef413a4c9423e4454ce030dc
https://doi.org/10.1002/jmri.21276

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Ultrasound-Guided, Percutaneous Cryotherapy of Small (≤15 mm) Breast Cancers

Autor: Werner A. Kaiser, Mieczyslaw Gajda, Christiane Marx, Oumar Camara, Stefan O.R. Pfleiderer

Publikováno v: Investigative Radiology. 40:472-477

The purpose of this study was to investigate the feasibility, efficacy, and safety of ultrasound-guided percutaneous cryotherapy of stage T1 breast cancers.Thirty patients with biopsy-confirmed breast cancers with tumor diameters of 15 mm or smaller

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b630a495a92c5c193f7f3a744e85680
https://doi.org/10.1097/01.rli.0000166935.56971.ff

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Effect of Routine MR Imaging of the Brain at 1.5 T on Subsequent Magnetoencephalography: Results in Nine Volunteers

Autor: Werner A. Kaiser, Jens Haueisen, Stefan O.R. Pfleiderer, Hans-Joachim Mentzel, U. Brandl, Clemens Fitzek, Dieter Sauner, Ralf Huonker, Jürgen R. Reichenbach

Publikováno v: Radiology. 230:715-719

To investigate whether routine magnetic resonance (MR) imaging of the brain with a whole-body 1.5-T imager affects the results of subsequent magnetoencephalography (MEG).Nine healthy volunteers (six women, mean age of 23 years, age range of 20-27 yea

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::212958a54a617bd3d1aee9d70de76ef0
https://doi.org/10.1148/radiol.2303021529

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Evaluation der Primärbefundung durch ein CAD-System in der Mammadiagnostik

Autor: W. A. Kaiser, Ansgar Malich, D. Vogel, Marlies Fleck, M. Facius, Stefan O.R. Pfleiderer, Dieter Sauner, Martin Freesmeyer, A. Hansch, C. Marx

Publikováno v: RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren. 175:1225-1231

PURPOSE: To assess the capability of the computer assisted detection (CAD) system to classify calcifications that are histologically verified as malignant and benign or are proven benign by magnification and follow up mammography. MATERIALS AND METHO

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::79ae03336c819d489a78a0de20fc3e0a
https://doi.org/10.1055/s-2003-41934

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Influence of Breast Lesion Size and Histologic Findings on Tumor Detection Rate of a Computer-aided Detection System

Autor: Marlies Fleck, Mirjam Facius, Stefan O.R. Pfleiderer, Ansgar Malich, Christiane Marx, Thomas Boehm, Werner A. Kaiser, Dieter Sauner

Publikováno v: Radiology. 228:851-856

To evaluate associations between histopathologic findings, tumor size, and detection rate of malignant mammographic findings by using a computer-aided detection (CAD) system.The study included 208 mammographically detected histologically proven malig

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c59de8d3634ad56c8ff80ae385f4b786
https://doi.org/10.1148/radiol.2283011906

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31P-MRS des Hirns bei Anorexia nervosa: Charakteristische Unterschiede in den Spektren von Patienten und gesunden Vergleichspersonen

Autor: D. Freesmeyer, Hans-Joachim Mentzel, Silke Klemm, W. A. Kaiser, Jürgen R. Reichenbach, U. J. Gerhard, Stefan O.R. Pfleiderer, B. Blanz, R. Rzanny

Publikováno v: RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren. 175:75-82

PURPOSE To investigate whether 31 P-MR spectroscopy can detect reduced concentrations of high-energy phosphates, like PCr and NTP, caused by decreased metabolic activity in the brain of patients with anorexia nervosa (AN) and, furthermore, whether an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b838a566193775eca27c97fd98c0b2ca
https://doi.org/10.1055/s-2003-36611

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Interventionelle MR-Mammographie: Manipulatorgestützte Biopsie und interstitielle Lasertherapie von Tumoren der weiblichen Brust

Autor: Susanne Wurdinger, Christiane Marx, Stefan O.R. Pfleiderer, Jürgen R. Reichenbach, Werner A. Kaiser, Martin Freesmeyer, Achim Schneider, Harald Fischer, Jörg Vagner

Publikováno v: Zeitschrift für Medizinische Physik. 13:198-202

The present study investigated the clinical application of magnetic resonance (MR)-guided breast interventions, such as manipulator-assisted large core breast biopsy (LCBB) inside a 1.5 T whole-body magnet and MR-guided interstitial laser therapy (IL

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::10cf5c09fbd251eed47ef080a1a30f23
https://doi.org/10.1078/0939-3889-00164

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Comparison of artifacts produced from carbon fiber and titanium alloy needles at 1.5 T MR imaging

Autor: Jürgen R. Reichenbach, Susanne Wurdinger, Stefan O.R. Pfleiderer, Werner A. Kaiser

Publikováno v: Journal of Magnetic Resonance Imaging. 11:69-74

A novel coaxial carbon fiber-based biopsy needle set was investigated in phantom experiments and compared with a commercially available, magnetic resonance (MR)-compatible titanium alloy set using MR imaging at 1.5 T. Image artifacts observed with di

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::70a8aff6e4078028aaa698426babe320
https://doi.org/10.1002/(sici)1522-2586(200001)11:1<69::aid-jmri11>3.0.co

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