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Alexander W. Leber
Researcher at Sunnybrook Health Sciences Centre
Publications - 24
Citations - 1199
Alexander W. Leber is an academic researcher from Sunnybrook Health Sciences Centre. The author has contributed to research in topics: Coronary artery disease & Perfusion scanning. The author has an hindex of 16, co-authored 24 publications receiving 1116 citations. Previous affiliations of Alexander W. Leber include University of Toronto & University of Minnesota.
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Coronary Artery Disease Correlation of Coronary Calcification and Angiographically Documented Stenoses in Patients With Suspected Coronary Artery Disease: Results of 1,764 Patients
Ralph Haberl,Alexander Becker,Alexander W. Leber,A. Knez,Christoph Becker,Christine Lang,Maximilian Reiser,Gerhard Steinbeck +7 more
TL;DR: Calcium screening with EBCT is a highly sensitive and moderately specific test to predict stenotic disease and exclusion of coronary calcium defines a substantial subgroup of patients, albeit symptomatic, with a very low probability of significant stenoses.
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Myocardium: Dynamic versus Single-Shot CT Perfusion Imaging
Armin Huber,V Leber,Bettina M. Gramer,Daniela Muenzel,Alexander W. Leber,Johannes Rieber,Martin Schmidt,Mani Vembar,Ellen Hoffmann,Ernst J. Rummeny +9 more
TL;DR: The semiquantitative parameters upslope and peak enhancement and the quantitative parameter MBF showed similar high diagnostic accuracy as compared with coronary angiography and fractional flow reserve measurement.
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CT evaluation of coronary artery stents with iterative image reconstruction: improvements in image quality and potential for radiation dose reduction
Ullrich Ebersberger,Francesco Tricarico,U. Joseph Schoepf,P Blanke,J. Reid Spears,Garrett W. Rowe,William T. Halligan,Thomas Henzler,Thomas Henzler,Fabian Bamberg,Alexander W. Leber,Ellen Hoffmann,Paul Apfaltrer,Paul Apfaltrer +13 more
TL;DR: Iterative reconstruction significantly improves imaging of coronary artery stents by CT compared with FBP, even with half-radiation-dose data, and has the potential to reduce radiation dose requirements.
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Fluoroscopy-Guided Aortic Root Imaging for TAVR: “Follow the Right Cusp” Rule
TL;DR: Transcatheter aortic valve replacement has extended the treatment options for inoperable patients with symptomatic, severe aorta stenosis and the safety and proficiency of this procedure depend upon proper imaging during the selection process and intraoperatively.
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Cost-effectiveness of cardiovascular magnetic resonance and single-photon emission computed tomography for diagnosis of coronary artery disease in Germany.
Julia Boldt,Alexander W. Leber,Klaus Bonaventura,Christian Sohns,Martin Stula,Alexander Huppertz,Wilhelm Haverkamp,Marc Dorenkamp +7 more
TL;DR: In patients with low to intermediate CAD probabilities, CMR is more cost-effective than SPECT, and lower costs per utility unit indicate a superior clinical utility of CMR.