mediaTUM
Universitätsbibliothek
Technische Universität München
User: Guest
Login
de
en
All data
Titel
Autor
Jahr
All data
Titel
Autor
Jahr
All data
Titel
Autor
Jahr
More Searchfields
Reset
Search
Simple search
mediaTUM Content
University Bibliography
Electronic Examination Papers
Open Access Publikationen
Research Data
TUM.University Press
Collections
Projects
Institutions
Research Centers
TUM Board of Management
Functional Units
Partnerschaftliche Einrichtungen
Schools
TUM School of Computation, Information and Technology
(44992)
TUM School of Engineering and Design
Center of Life and Food Sciences Weihenstephan
TUM School of Management
TUM School of Medicine and Health
Deanery
(6)
Examination Papers
(5990)
Departments
(47511)
2012
(29)
2013
(23)
2014
(25)
2015
(18)
2016
(9)
2017
(12)
2018
(6)
2019
(17)
2020
(25)
2021
(25)
2022
(37)
2023
(3)
Clinical Medicine
(36972)
Institute of General Medicine (Prof. Schneider)
(322)
Institute of Radiology (Prof. Makowski)
(3526)
Assistant Professorship of Artificial Intelligence in Radiology (Prof. Wachinger)
2024
(105)
Associate Professorship of Department Interventional Radiology (Prof. Paprottka)
(69)
Assistant Professorship of Experimental Magnetic Resonance Imaging (Prof. Karampinos)
Chair of Radiology (Prof. Makowski)
(150)
Institut für Radiologie und Nuklearmedizin
(851)
Abteilung für Diagnostische und Interventionelle Neuroradiologie (Prof. Zimmer)
(1524)
2023
(124)
2022
(120)
2021
(141)
2020
(136)
2019
(109)
2018
(108)
2017
(89)
Institute of Experimental Hematology (Prof. Schmidt-Supprian)
(51)
Institute of Experimental Neuroimmunology (Prof. Korn)
(1)
Institute of Exerimentelle Tumortherapie (Prof. Saur)
(140)
Institute of Human Genetics (Prof. Winkelmann)
(1150)
Institute of AI and Informatics in Medicine (Prof. Rückert)
(1752)
Institute of Clinical Chemistry and Pathobiochemistry (Prof. Ruland)
(452)
Institute of Molecular Allergology (Prof. Schmidt-Weber)
(692)
Institute of Molecular Immunology (Prof. Knolle)
(139)
Institute of Molecular Oncology and Functional Genomics (Prof. Rad)
(136)
Department of Anesthesiology and Intensive Care (Prof. Schneider)
(828)
Clinic of Nutritional Medicine (Prof. Hauner)
(628)
Department of Ophthalmology
(357)
Department of Surgery (Prof. Friess)
(1707)
Department of Dermatology and Allergology (Prof. Biedermann)
(2203)
Department of Gynecology (Prof. Kiechle)
(1533)
Department of Otolaryngology (Prof. Wollenberg)
(622)
Department of Internal Medicine I - Cardiology (Prof. Laugwitz)
(1604)
Department of Internal Medicine II - Gastroenterology (Prof. Schmid)
(2477)
Department of Internal Medicine III - Hematology and Medical Oncology (Prof. Bassermann)
(1338)
Department of Pediatric Medicine (Prof. Hauer)
(1094)
Department of Oral and Maxillofacial Surgery (Prof. Wolff)
(483)
Clinic and Polyclinic for Neonatology (Prof. Peters komm.)
(6)
Department of Neurosurgery (Prof. Meyer)
(762)
Department of Neurology (Prof. Hemmer)
(2488)
Department of Nuclear Medicine (Prof. Weber)
(1891)
Department of Orthopedics and Sports Orthopedics (Prof. von Eisenhart-Rothe)
(1002)
Department of Plastic Surgery and Hand Surgery (Prof. Machens)
(473)
Department of Psychiatry and Psychotherapy (Prof. Priller)
(1859)
Department of Psychosomatic Medicine and Psychotherapy (Prof. Henningsen)
(1030)
Department of Radiooncology and Radiation Therapy (Prof. Combs)
(1613)
Department of Trauma Surgery (Prof. Biberthaler)
(780)
Department of Urology (Prof. Gschwend)
(1073)
Clinic and Polyclinic for Vascular and Endovascular Surgery (Prof. Eckstein)
(693)
German Heart Centre Munich
(3169)
Department of Preventive Sports Medicine and Sports Cardiology (Prof. Halle)
(517)
Weitere Lehrstühle und Professuren Clinical Medicine
(181)
Health and Sport Sciences
Preclinical Medicine
(5422)
Interdisziplinäres Zentrum für Zelltherapie
Roman Herzog Comprehensive Cancer Center
(194)
School Office
Zentrum für Präklinische Forschung
Ehemalige Einrichtungen
(2180)
TUM School of Natural Sciences
(14596)
TUM School of Social Sciences and Technology
(8968)
TUM Campus Straubing für Biotechnologie und Nachhaltigkeit
Service Facilities
TUM Institute for LifeLong Learning
Central Administration
mediaTUM Gesamtbestand
Einrichtungen
Schools
TUM School of Medicine and Health
Departments
Clinical Medicine
Institut für Diagnostische und Interventionelle Radiologie (Prof. Makowski)
Back
Back to start of result list
Permanent link for displayed object
Document type:
Journal Article
Author(s):
Thalhammer, Johannes; Schultheiß, Manuel; Dorosti, Tina; Lasser, Tobias; Pfeiffer, Franz; Pfeiffer, Daniela; Schaff, Florian
Title:
Improving Automated Hemorrhage Detection at Sparse-View CT via U-Net-based Artifact Reduction.
Abstract:
Purpose To explore the potential benefits of deep learning-based artifact reduction in sparse-view cranial CT scans and its impact on automated hemorrhage detection. Materials and Methods In this retrospective study, a U-Net was trained for artifact reduction on simulated sparse-view cranial CT scans in 3000 patients, obtained from a public dataset and reconstructed with varying sparse-view levels. Additionally, EfficientNet-B2 was trained on full-view CT data from 17 545 patients for automated hemorrhage detection. Detection performance was evaluated using the area under the receiver operating characteristic curve (AUC), with differences assessed using the DeLong test, along with confusion matrices. A total variation (TV) postprocessing approach, commonly applied to sparse-view CT, served as the basis for comparison. A Bonferroni-corrected significance level of .001/6 = .00017 was used to accommodate for multiple hypotheses testing. Results Images with U-Net postprocessing were better than unprocessed and TV-processed images with respect to image quality and automated hemorrhage detection. With U-Net postprocessing, the number of views could be reduced from 4096 (AUC: 0.97 [95% CI: 0.97, 0.98]) to 512 (0.97 [95% CI: 0.97, 0.98], P < .00017) and to 256 views (0.97 [95% CI: 0.96, 0.97], P < .00017) with a minimal decrease in hemorrhage detection performance. This was accompanied by mean structural similarity index measure increases of 0.0210 (95% CI: 0.0210, 0.0211) and 0.0560 (95% CI: 0.0559, 0.0560) relative to unprocessed images. Conclusion U-Net-based artifact reduction substantially enhanced automated hemorrhage detection in sparse-view cranial CT scans. Keywords: CT, Head/Neck, Hemorrhage, Diagnosis, Supervised Learning Supplemental material is available for this article. © RSNA, 2024.
Journal title abbreviation:
Radiol Artif Intell
Year:
2024
Journal volume:
6
Journal issue:
4
Fulltext / DOI:
doi:10.1148/ryai.230275
Pubmed ID:
http://view.ncbi.nlm.nih.gov/pubmed/38717293
TUM Institution:
Institut für Diagnostische und Interventionelle Radiologie (Prof. Makowski)
BibTeX
Occurrences:
mediaTUM Gesamtbestand
Hochschulbibliographie
2024
Schools und Fakultäten
TUM School of Medicine and Health
Institut für Radiologie
mediaTUM Gesamtbestand
Einrichtungen
Schools
TUM School of Medicine and Health
Departments
Clinical Medicine
Institut für Diagnostische und Interventionelle Radiologie (Prof. Makowski)
2024