Tobias Pogarell

Development of a Diagnostic Tool for Elbow Instability Combining 4D-CT Imaging and Mechanical Load Analysis

Jonas Gehring, Fabian Forster, Markus Meindl, Martin Maerz et autres

Background: Diagnosis of elbow instability in clinical practice commonly relies on manual stress testing by the physician with or without combination of fluoroscopy or ultrasound, which may result in variable force application and subjective interpretation. A standardized method for applying controlled mechanical …

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Tuning the mechanical properties of polymer-based surrogate materials for articular cartilage and vocal fold repair

Jessica Faber, Samuel Schlicht, Stefan Kniesburges, Anke Kaufmann et autres

Abstract The macroscopic biomechanical characteristics of soft and ultrasoft tissues, such as articular cartilage and vocal folds, significantly determine their physiological function. Treatments of widespread tissue degradations due to osteoarthritis in the knee or vocal fold impairment remain an unresolved challenge. For …

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Development of a deep learning algorithm for radiographic detection of syndesmotic instability in ankle fractures with intraoperative validation

Joshua Kubach, Tobias Pogarell, Michael Uder, Mario Perl et autres

Identifying syndesmotic instability in ankle fractures using conventional radiographs is still a major challenge. In this study we trained a convolutional neural network (CNN) to classify the fracture utilizing the AO-classification (AO-44 A/B/C) and to simultaneously detect syndesmosis instability in the conventional …

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Impact of intravenous CT contrast agents on internal calibration techniques to determine trabecular BMD of the lumbar spine

Stefan Bartenschlager, Alexander Cavallaro, Tobias Pogarell, Michael Uder et autres

OBJECTIVES: Contrast agents are frequently administered in computed tomography (CT) scans used for opportunistic screening of osteoporosis. The objective of this study is to compare the impact of contrast-related bone mineral density (BMD) increase between phantom-based and internal CT calibration techniques. MATERIALS …

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Response to the editor of JBMR regarding the letter related to “Opportunistic screening with CT: comparison of phantomless BMD calibration methods”

Stefan Bartenschlager, Alexander Cavallaro, Tobias Pogarell, Oliver Chaudry et autres

We thank Prof. Boyd and colleagues for their interesting comments highlighting the growing importance of internal bone mineral density (BMD) calibration techniques for use in opportunistic screening. We agree that the phantomless BMD calibration method developed at the University of Calgary1 is …

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Modern low-field MRI

Tobias Pogarell, Rafael Heiß, Rolf Janka, Armin M. Nagel et autres

This narrative review explores recent advancements and applications of modern low-field (≤ 1 Tesla) magnetic resonance imaging (MRI) in musculoskeletal radiology. Historically, high-field MRI systems (1.5 T and 3 T) have been the standard in clinical practice due to superior image resolution …

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Imaging of muscle injuries in soccer

Rafael Heiß, Johannes L. Tol, Tobias Pogarell, Frank W. Roemer et autres

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Opportunistic Screening With CT: Comparison of Phantomless BMD Calibration Methods

Stefan Bartenschlager, Alexander Cavallaro, Tobias Pogarell, Oliver Chaudry et autres

ABSTRACT Opportunistic screening is a new promising technique to identify individuals at high risk for osteoporotic fracture using computed tomography (CT) scans originally acquired for an clinical purpose unrelated to osteoporosis. In these CT scans, a calibration phantom traditionally required to convert …

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Author response for "Opportunistic screening with CT: comparison of phantomless BMD calibration methods"

Stefan Bartenschlager, Alexander Cavallaro, Tobias Pogarell, Oliver Chaudry et autres

Author response for "Opportunistic screening with CT: comparison of phantomless BMD calibration methods"

Stefan Bartenschlager, Alexander Cavallaro, Tobias Pogarell, Oliver Chaudry et autres

Author response for "Opportunistic screening with CT: comparison of phantomless BMD calibration methods"

Stefan Bartenschlager, Alexander Cavallaro, Tobias Pogarell, Oliver Chaudry et autres

Muskuloskeletale Bildgebung in der Niederfeld-Magnetresonanztomographie

Tobias Pogarell, Matthias May, Armin M. Nagel, Michael Uder et autres

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