Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Paul Jahnke"'
Publikováno v:
European Radiology Experimental, Vol 8, Iss 1, Pp 1-11 (2024)
Abstract Background Computed tomography (CT) reconstruction algorithms can improve image quality, especially deep learning reconstruction (DLR). We compared DLR, iterative reconstruction (IR), and filtered back projection (FBP) for lesion detection i
Externí odkaz:
https://doaj.org/article/fbeae05d2172403aa0386c53e328744a
Autor:
Ulrich Genske, Paul Jahnke
Publikováno v:
Radiology. 303:524-530
Background Current software applications for human observer studies of images lack flexibility in study design, platform independence, multicenter use, and assessment methods and are not open source, limiting accessibility and expandability. Purpose
Publikováno v:
European Radiology. 32:4587-4595
Objectives To compare image quality of deep learning reconstruction (AiCE) for radiomics feature extraction with filtered back projection (FBP), hybrid iterative reconstruction (AIDR 3D), and model-based iterative reconstruction (FIRST). Methods Effe
Publikováno v:
European Radiology
Objectives To evaluate the effects of anatomical phantom structure on task-based image quality assessment compared with a uniform phantom background. Methods Two neck phantom types of identical shape were investigated: a uniform type containing 10-mm
Autor:
Maximilian Nunninger, Ulrich Genske, Michael Scheel, Bernd Hamm, Paul Jahnke, Juliane Conzelmann, Torsten Diekhoff
Publikováno v:
European Radiology
Objectives To assess how modifying multiple protocol parameters affects the dose and diagnostic performance of a neck CT protocol using patient-mimicking phantoms and task-based methods. Methods Six patient-mimicking neck phantoms containing hypodens
Autor:
Felix Benjamin Schwarz, Bernd Hamm, Victor Paul Bela Braun, Paul Jahnke, Marco Ziegert, Michael Scheel, Maximilian Nunninger
Publikováno v:
Neuroradiology. 62:341-346
To develop and evaluate a technical approach for CT-guided periradicular infiltration using quantitative needle access and guidance parameters extracted from CT scout images. Five 3D-printed phantoms of the abdomen mimicking different patients were u
Autor:
Carsten Stelbrink, Niklas Tuttle, Torsten Diekhoff, Friedemann Goehler, Paul Jahnke, Julian Pohlan, Ho Jung Kwon, Olivia Kershaw, Matthias Pumberger, Felix Kubicka, Achim D. Gruber
Publikováno v:
Acta radiologica (Stockholm, Sweden : 1987). 63(8)
Background Previously, dual-energy computed tomography (DECT) has been established for imaging spinal fractures as an alternative modality to magnetic resonance imaging (MRI). Purpose To analyze the diagnostic accuracy of DECT in visualizing interver
Autor:
Bernd Hamm, Claus P. Nowak, Tobias Penzkofer, Paul Jahnke, Alexander Hartenstein, Stefanie Riedlberger, Hanna Muenzfeld
Publikováno v:
European journal of radiology. 141
Radiomics has shown to provide novel diagnostic and predictive disease information based on quantitative image features in study settings. However, limited data yielded contradictory results and important questions regarding the validity of the metho
Publikováno v:
Quant Imaging Med Surg
BACKGROUND: Dual-energy computed tomography (DECT) is increasingly used in studies and clinical practice. However, the best protocol is controversially discussed and whether it exhibits more radiation exposure compared to conventional protocols. Thus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::201a29f81cd437f3dbe262142e0fdf49
https://europepmc.org/articles/PMC7930688/
https://europepmc.org/articles/PMC7930688/
Autor:
Georg Böning, Felix Feldhaus, Paul Jahnke, Uli Fehrenbach, Florian Streitparth, Johannes Kahn, Bernd Hamm
Publikováno v:
Acta Radiologica. 61:424-431
Background Measurement of iodine concentration from dual-energy or spectral computed tomography (CT) provides useful diagnostic information especially in patients suffering from malignant tumors of various origins. Purpose The purpose of this study w