Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Ludwig Ritschl"'
Autor:
H. Huflage, Tobias Gassenmaier, Andreas Steven Kunz, Lenhard Pennig, Süleyman Ergün, J.-P. Grunz, Steffen Kappler, T.A. Bley, Ludwig Ritschl, K.S. Luetkens, Lukas Goertz, Magdalena Herbst
Publikováno v:
Radiography. 28:433-439
INTRODUCTION While tin prefiltration is established in various CT applications, its value in extremity cone-beam CT relative to optimized spectra has not been thoroughly assessed thus far. This study aims to investigate the effect of tin filters in e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fcb19262da0b9fce7745a96f50f0ff34
https://doi.org/10.1016/j.radi.2021.10.009
https://doi.org/10.1016/j.radi.2021.10.009
Autor:
Mark Supanich, Jeff Siewerdsen, Rebecca Fahrig, Keyvan Farahani, Grace Jianan Gang, Pat Helm, Jan Jans, Kyle Jones, Thomas Koenig, Andrew Kuhls‐Gilcrist, MingDe Lin, Cyril Riddell, Ludwig Ritschl, Sebastian Schafer, Beth Schueler, Mike Silver, Jan Timmer, Yves Trousset, Jie Zhang
Publikováno v:
Medical Physics.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0272e2f9a8edbd0630460fd0def387a
https://doi.org/10.1002/mp.16245
https://doi.org/10.1002/mp.16245
Autor:
Chumin Zhao, Ludwig Ritschl, Jeffrey H. Siewerdsen, Christoph Luckner, Sebastian Vogt, Steffen Kappler, Wojciech Zbijewski, Magdalena Herbst, Tom Weber
Publikováno v:
Medical Physics. 48:6673-6695
PURPOSE We investigate the feasibility of slot-scan dual-energy (DE) bone densitometry on motorized radiographic equipment. This approach will enable fast quantitative measurements of areal bone mineral density (aBMD) for opportunistic evaluation of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fcf6419c88a84d3c41a814be732e0242
https://doi.org/10.1002/mp.15272
https://doi.org/10.1002/mp.15272
Autor:
Stephen Z. Liu, Magdalena Herbst, Thomas Weber, Sebastian Vogt, Ludwig Ritschl, Steffen Kappler, Jeffrey H. Siewerdsen, Wojciech Zbijewski
Publikováno v:
7th International Conference on Image Formation in X-Ray Computed Tomography.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a684b5fc45aa41ab0ec24c1a78b88fa
https://doi.org/10.1117/12.2646391
https://doi.org/10.1117/12.2646391
Autor:
Stephen Z. Liu, Chumin Zhao, Magdalena Herbst, Thomas Weber, Sebastian Vogt, Ludwig Ritschl, Steffen Kappler, Jeffrey H. Siewerdsen, Wojciech Zbijewski
Publikováno v:
Medical Imaging 2022: Physics of Medical Imaging.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7464d350279eef10def6f1b3393250bb
https://doi.org/10.1117/12.2613211
https://doi.org/10.1117/12.2613211
Autor:
Dominik Eckert, Ludwig Ritschl, Magdalena Herbst, Julia Wicklein, Sulaiman Vesal, Steffen Kappler, Andreas Maier, Sebastian Stober
Publikováno v:
Medical Imaging 2022: Physics of Medical Imaging.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::779a10b70273b9ce0a4869e191f9fad3
https://doi.org/10.1117/12.2612403
https://doi.org/10.1117/12.2612403
Autor:
Ludwig Ritschl, Steffen Kappler, Chumin Zhao, Jeffrey H. Siewerdsen, Sebastian Vogt, Wojciech Zbijewski, Magdalena Herbst
Publikováno v:
Medical Physics. 47:3305-3320
PURPOSE The recently introduced robotic x-ray systems provide the flexibility to acquire cone-beam computed tomography (CBCT) data using customized, application-specific source-detector trajectories. We exploit this capability to mitigate the effects
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b9ea4d3660922f6ed5cf3a18bb8dcb7
https://doi.org/10.1002/mp.14209
https://doi.org/10.1002/mp.14209
Autor:
Wojciech Zbijewski, Stephen Z. Liu, Magdalena Herbst, Tom Weber, Steffen Kappler, Jeffrey H. Siewerdsen, Ludwig Ritschl, J. Webster Stayman, Sebastian Vogt, Chumin Zhao, Wenying Wang
Publikováno v:
Medical Imaging 2021: Physics of Medical Imaging.
Purpose: We compare the effects of scatter on the accuracy of areal bone mineral density (BMD) measurements obtained using two flat-panel detector (FPD) dual-energy (DE) imaging configurations: a dual-kV acquisition and a dual-layer detector. Methods
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bce868ce6d1225e97ef44b5fb586ea34
https://doi.org/10.1117/12.2581822
https://doi.org/10.1117/12.2581822
Autor:
Chumin Zhao, Wojciech Zbijewski, Steffen Kappler, Tom Weber, Ludwig Ritschl, Magdalena Herbst, Jeffrey H. Siewerdsen, Sebastian Vogt
Publikováno v:
Medical Imaging 2021: Physics of Medical Imaging.
We investigate an image-based strategy to compensate for cardiac motion-induced artifacts in Digital Chest Tomosynthesis (DCT). We apply the compensation to conventional unidirectional vertical “↕” scan DCT and to a multidirectional circular tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b38442194a7d4f499039c97265b2401b
https://doi.org/10.1117/12.2581287
https://doi.org/10.1117/12.2581287
Autor:
Tom Weber, Steffen Kappler, Magdalena Herbst, Andreas Maier, Christoph Luckner, Ludwig Ritschl
Publikováno v:
Medical physicsREFERENCES. 48(5)
PURPOSE This paper studies the abilities of a twin-robotic x-ray slot-scanning system for orthopedic imaging to reduce dose by scatter rejection compared to conventional digital radiography. METHODS We investigate the dose saving capabilities, especi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8233d2f00e4e6acc74f16be152c9136
https://pubmed.ncbi.nlm.nih.gov/33368397
https://pubmed.ncbi.nlm.nih.gov/33368397