Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Axel Kuettner"'
Autor:
Stephan Achenbach, Dieter Ropers, Katharina Anders, Michael Uder, Axel Kuettner, Michael Brand, Matthias May, Wolfgang Wuest, Michael Scharf
Publikováno v:
European Journal of Radiology. 81:e461-e466
Purpose An extensive number of protocols have been suggested to allow for functional diagnostics; however, no data is available about the minimal amount of contrast medium to achieve reliable imaging properties. None of the plethora of existing studi
Autor:
Katharina Anders, Werner G. Daniel, Axel Kuettner, Martin Wechsel, Stephan Achenbach, Michael Uder, Ulrike Ropers
Publikováno v:
European Journal of Radiology. 80:89-95
Objective To evaluate, whether semi-automated vessel extraction and curved planar reformations (“automated vessel extraction”) increases diagnostic accuracy in the detection of relevant coronary artery lesions compared to manual, interactive mult
Autor:
Dieter Ropers, Tobias Pflederer, Stephan Achenbach, Michael Lell, Josy Jakstat, Tiziano Schepis, Werner G. Daniel, Axel Kuettner, Katharina Anders, Sven Bachmann, Mohamed Marwan, Gerd Muschiol
Publikováno v:
European Radiology. 20:1197-1206
To evaluate staged low-dose approaches for coronary CT angiography (CTA) in which a standard sequence was added if the low-dose sequence did not allow reliable rule-out of coronary stenosis.A total of 176 consecutive patients referred for dual-source
Autor:
Tiziano Schepis, Michael Uder, Werner G. Daniel, Axel Kuettner, Mohamed Marwan, Stephan Achenbach, Tobias Pflederer, Dieter Ropers, Katharina Anders, Michael Lell
Publikováno v:
European Heart Journal. 31:340-346
Aims We evaluated the feasibility and image quality of a new scan mode for coronary computed tomography angiography (CTA) with an effective dose of less than 1 mSv. Methods and results In 50 consecutive patients (body weight ≤ 100 kg, sinus rhythm
Autor:
Tiziano Schepis, Carsten Thierfelder, Axel Kuettner, Katharina Anders, Dieter Ropers, Stephan Achenbach, Thomas Flohr, Werner G. Daniel, Willi A. Kalender, Tobias Pflederer, Mohamed Marwan, Michael Lell, Thomas Allmendinger, Dirk Ertel
Publikováno v:
European Radiology. 19:2576-2583
We evaluated radiation exposure and image quality of a new coronary CT angiography protocol, high-pitch spiral acquisition, using dual source CT (DSCT).Coronary CTAwas performed in 25 consecutive patients with a stable heart rate of 60 bpm or less af
Autor:
Matthias May, Axel Kuettner, W Wüst, Stephan Achenbach, Michael Uder, C. Zunker, Dieter Ropers, Katharina Anders
Publikováno v:
RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren. 181:324-331
PURPOSE: Due to the technical advance of multislice cardiac CT and the recently introduced dual source CT, the acquisition times for cardiac CT exams are < 10 sec. At the same time the assessment of left ventricular function is possible. However, in
Autor:
Michael Uder, W G Daniel, Dieter Ropers, Stephan Achenbach, Ulrich Baum, Katharina Anders, S Gauss, Axel Kuettner, Michael A. Kuefner
Publikováno v:
RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren. 181:332-338
Purpose Spiral CT angiography (CTA) of the coronaries using low-pitch scanning and ECG-gated image reconstruction is a robust method for detecting or excluding relevant coronary plaque. However, the resulting dose exposure is considerable. The aim of
Autor:
F. M. Hinkmann, H. Voit, Axel Kuettner, M. C. Heinrich, A. Dimmler, B. Krauss, B. Adamitz, Michael Uder
Publikováno v:
RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren. 181:367-373
PURPOSE: Despite clinically available high-resolution CT, the detection and classification of gallstones remains a challenge in some cases. This pilot study examines whether noninvasive characterization of gallstones in vitro is possible using dual-e
Autor:
Stephan Achenbach, Alexandra Renz, Tobias Pflederer, Werner G. Daniel, Axel Kuettner, Dieter Ropers, Katharina Anders, Sven Bachmann, Fabian Bamberg, Mohamed Marwan
Publikováno v:
The American Journal of Cardiology. 103:812-817
Assessment of coronary artery stents using computed tomographic angiography has been challenging. The technology of dual-source computed tomography (DSCT) provides higher temporal resolution that may allow more accurate evaluation of coronary stents.
Autor:
Christof Burgstahler, Bernhard Klumpp, Martin Heuschmid, Andreas F. Kopp, Axel Kuettner, Felix Schumacher, Claus D. Claussen, T. Beck, M Teufel, Anja Reimann, Steffen Schröder
Publikováno v:
European Journal of Radiology. 66:127-133
Aims Detecting stenoses of coronary arteries with multidetector row computer tomography (MDCT) is a well feasible non-invasive method. However, there is still the problem of deciding whether a stenosis is hemodynamically relevant or not. Objective of