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6. Upright Tomosynthesis of the Lumbar Spine

Author

Conrads, Nora, Kunz, Andreas Steven, Huflage, Henner, Patzer, Theresa Sophie, Luetkens, Karsten Sebastian, Ergün, Süleyman, Herbst, Magdalena, Herold, Sophia, Weber, Thomas, Bley, Thorsten Alexander, and Grunz, Jan -Peter

Published
2024
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16. An Intra-Individual Comparison of Low-keV Photon-Counting CT versus Energy-Integrating-Detector CT Angiography of the Aorta

Author

Hennes, Jan-Lucca, primary, Huflage, Henner, additional, Grunz, Jan-Peter, additional, Hartung, Viktor, additional, Augustin, Anne Marie, additional, Patzer, Theresa Sophie, additional, Pannenbecker, Pauline, additional, Petritsch, Bernhard, additional, Bley, Thorsten Alexander, additional, and Gruschwitz, Philipp, additional

Published
2023
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17. Upright Tomosynthesis of the Lumbar Spine

Author

Conrads, Nora, primary, Kunz, Andreas Steven, additional, Huflage, Henner, additional, Patzer, Theresa Sophie, additional, Luetkens, Karsten Sebastian, additional, Ergün, Süleyman, additional, Herbst, Magdalena, additional, Herold, Sophia, additional, Weber, Thomas, additional, Bley, Thorsten Alexander, additional, and Grunz, Jan -Peter, additional

Published
2023
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18. Faster Elbow MRI with Deep Learning Reconstruction—Assessment of Image Quality, Diagnostic Confidence, and Anatomy Visualization Compared to Standard Imaging

Author

Herrmann, Judith, primary, Afat, Saif, additional, Gassenmaier, Sebastian, additional, Grunz, Jan-Peter, additional, Koerzdoerfer, Gregor, additional, Lingg, Andreas, additional, Almansour, Haidara, additional, Nickel, Dominik, additional, Patzer, Theresa Sophie, additional, and Werner, Sebastian, additional

Published
2023
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19. Ultra-High-Resolution Photon-Counting Detector CT Arthrography of the Ankle: A Feasibility Study

Author

Luetkens, Karsten Sebastian, primary, Grunz, Jan-Peter, additional, Kunz, Andreas Steven, additional, Huflage, Henner, additional, Weißenberger, Manuel, additional, Hartung, Viktor, additional, Patzer, Theresa Sophie, additional, Gruschwitz, Philipp, additional, Ergün, Süleyman, additional, Bley, Thorsten Alexander, additional, and Feldle, Philipp, additional

Published
2023
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21. Twin Robotic Gantry-Free Cone-Beam CT in Acute Elbow Trauma

Author

Kunz, Andreas Steven, primary, Schmalzl, Jonas, additional, Huflage, Henner, additional, Luetkens, Karsten Sebastian, additional, Patzer, Theresa Sophie, additional, Kuhl, Philipp Josef, additional, Gruschwitz, Philipp, additional, Petritsch, Bernhard, additional, Schmitt, Rainer, additional, Bley, Thorsten Alexander, additional, and Grunz, Jan-Peter, additional

Published
2023
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24. Submillisievert Abdominal Photon-Counting CT versus Energy-integrating Detector CT for Urinary Calculi Detection: Impact on Diagnostic Confidence

Author

Huflage, Henner, Kunz, Andreas Steven, Patzer, Theresa Sophie, Pichlmeier, Svenja, Westhofen, Thilo, Gruschwitz, Philipp, Heidenreich, Julius Frederik, Lennartz, Simon, Bley, Thorsten Alexander, and Grunz, Jan-Peter

Abstract

Abdominal photon-counting CT with tin prefiltration enabled submillisievert urolithiasis imaging with high image quality, and radiation exposure was reduced by 44% compared with dose-optimized energy-integrating detector CT.

Published
2024
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25. Twin Robotic Gantry-Free Cone-Beam CT in Acute Elbow Trauma

Author

Kunz, Andreas Steven, Schmalzl, Jonas, Huflage, Henner, Luetkens, Karsten Sebastian, Patzer, Theresa Sophie, Kuhl, Philipp Josef, Gruschwitz, Philipp, Petritsch, Bernhard, Schmitt, Rainer, Bley, Thorsten Alexander, and Grunz, Jan-Peter

Abstract

Gantry-free cone-beam CT with a twin robotic radiography system allows for excellent diagnostic performance for the diagnosis of fractures and fracture-related findings in elbow joint examinations with low radiation dose.

Published
2022
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26. Postoperative Extremity Tomosynthesis-A Superimposition-Free Alternative to Standard Radiography?

Author

Grunz JP, Kunz AS, Paul MM, Luetkens KS, Huflage H, Conrads N, Ergün S, Weber T, Herbst M, Herold S, Bley TA, and Patzer TS

Abstract

Rationale and Objectives: This study investigates the performance of tomosynthesis in the presence of osteosynthetic implants, aiming to overcome superimposition-induced limitations in conventional radiograms., Materials and Methods: After surgical fracture induction and subsequent osteosynthesis, 8 cadaveric fracture models (wrist, metacarpus, ankle, metatarsus) were scanned with the prototypical tomosynthesis mode of a multiuse x-ray system. Tomosynthesis protocols at 60, 80, and 116 kV (sweep angle 10°, 13 FPS) were compared with standard radiograms. Five radiologists independently rated diagnostic assessability based on an equidistant 7-point scale focusing on fracture delineation, intra-articular screw placement, and implant positioning. The intraclass correlation coefficient (ICC) was calculated to analyze interrater agreement., Results: Radiation dose in radiography was 0.48 ± 0.26 dGy·cm2 versus 0.12 ± 0.01, 0.36 ± 0.02, and 1.95 ± 0.11 dGy·cm2 for tomosynthesis scans at 60, 80, and 116 kV. Delineation of fracture lines was superior for 80/116 kV tomosynthesis compared with radiograms (P ≤ 0.003). Assessability of intra-articular screw placement was deemed favorable for all tomosynthesis protocols (P ≤ 0.004), whereas superiority for evaluation of implant positioning could not be ascertained (all P's ≥ 0.599). Diagnostic confidence was higher for 80/116 kV tomosynthesis versus radiograms and 60 kV tomosynthesis (P ≤ 0.002). Interrater agreement was good for fracture delineation (ICC, 0.803; 95% confidence interval [CI], 0.598-0.904), intra-articular screw placement (ICC, 0.802; 95% CI, 0.599-0.903), implant positioning (ICC, 0.855; 95% CI, 0.729-0.926), and diagnostic confidence (ICC, 0.842; 95% CI, 0.556-0.934)., Conclusions: In the postoperative workup of extremity fractures, tomosynthesis allows for superior assessment of fracture lines and intra-articular screw positioning with greater diagnostic confidence at radiation doses comparable to conventional radiograms., Competing Interests: Conflicts of interest and sources of funding: J.-P.G. (Z-3BC/02) was financially supported by the Interdisciplinary Center of Clinical Research Würzburg. The radiology department in Würzburg receives ongoing research funding from Siemens Healthineers., (Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc.)

Published
2024
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