Zobrazeno 1 - 10
of 212
pro vyhledávání: '"Julian L, Wichmann"'
Autor:
Vitali Koch, Nils Große Hokamp, Moritz H. Albrecht, Leon D. Gruenewald, Ibrahim Yel, Jan Borggrefe, Stefan Wesarg, Katrin Eichler, Iris Burck, Tatjana Gruber-Rouh, Lukas Lenga, Thomas J. Vogl, Simon S. Martin, Julian L. Wichmann, Renate M. Hammerstingl, Leona S. Alizadeh, Christoph Mader, Nicole A. Huizinga, Tommaso D’Angelo, Giorgio Ascenti, Silvio Mazziotti, Christian Booz
Publikováno v:
European Radiology Experimental, Vol 5, Iss 1, Pp 1-10 (2021)
Abstract Background Dual-source dual-energy computed tomography (DECT) offers the potential for opportunistic osteoporosis screening by enabling phantomless bone mineral density (BMD) quantification. This study sought to assess the accuracy and preci
Externí odkaz:
https://doaj.org/article/2853aee0861849e284a79c4bedd30e19
Autor:
Tommaso D’Angelo, Moritz H. Albrecht, Danilo Caudo, Silvio Mazziotti, Thomas J. Vogl, Julian L. Wichmann, Simon Martin, Ibrahim Yel, Giorgio Ascenti, Vitali Koch, Giuseppe Cicero, Alfredo Blandino, Christian Booz
Publikováno v:
European Radiology Experimental, Vol 5, Iss 1, Pp 1-13 (2021)
Abstract Dual-energy CT (DECT) has emerged into clinical routine as an imaging technique with unique postprocessing utilities that improve the evaluation of different body areas. The virtual non-calcium (VNCa) reconstruction algorithm has shown benef
Externí odkaz:
https://doaj.org/article/3bad72e6d0dc48a7a270241f47a2a538
Autor:
Christian Booz, Ibrahim Yel, Julian L. Wichmann, Sabine Boettger, Ahmed Al Kamali, Moritz H. Albrecht, Simon S. Martin, Lukas Lenga, Nicole A. Huizinga, Tommaso D’Angelo, Marco Cavallaro, Thomas J. Vogl, Boris Bodelle
Publikováno v:
European Radiology Experimental, Vol 4, Iss 1, Pp 1-8 (2020)
Abstract Background Bone age (BA) assessment performed by artificial intelligence (AI) is of growing interest due to improved accuracy, precision and time efficiency in daily routine. The aim of this study was to investigate the accuracy and efficien
Externí odkaz:
https://doaj.org/article/70c614acd73c4764ae59c7a032ff1191
Autor:
Christian Booz, Ibrahim Yel, Julian L. Wichmann, Simon S. Martin, Vitali Koch, Leon D. Gruenewald, Leona S. Alizadeh, Thomas J. Vogl, Tommaso D’Angelo
Publikováno v:
Diagnostics, Vol 13, Iss 3, p 542 (2023)
Urine sedimentation in the bladder can occur in various circumstances and can lead to urinary obstruction/stasis with associated pain. It is usually diagnosed with an ultrasound; however, CT is also used to assess the amount and to further check for
Externí odkaz:
https://doaj.org/article/c44068f4fc6a43b38407aef82f710d11
Autor:
Matthew Seidler, Behzad Forghani, Caroline Reinhold, Almudena Pérez-Lara, Griselda Romero-Sanchez, Nikesh Muthukrishnan, Julian L. Wichmann, Gabriel Melki, Eugene Yu, Reza Forghani
Publikováno v:
Computational and Structural Biotechnology Journal, Vol 17, Iss , Pp 1009-1015 (2019)
ABSTRACT: Purpose: To determine whether machine learning assisted-texture analysis of multi-energy virtual monochromatic image (VMI) datasets from dual-energy CT (DECT) can be used to differentiate metastatic head and neck squamous cell carcinoma (HN
Externí odkaz:
https://doaj.org/article/2eea8b6a9e5543f886e3cc7aa5288bcc
Autor:
Simon S. Martin, Jetlir Kolaneci, Rouben Czwikla, Christian Booz, Leon D. Gruenewald, Moritz H. Albrecht, Zachary M. Thompson, Lukas Lenga, Ibrahim Yel, Thomas J. Vogl, Julian L. Wichmann, Vitali Koch
Publikováno v:
Diagnostics, Vol 12, Iss 7, p 1682 (2022)
Purpose: To investigate the diagnostic performance of noise-optimized virtual monoenergetic images (VMI+) in dual-energy CT (DECT) of portal vein thrombosis (PVT) compared to standard reconstructions. Method: This retrospective, single-center study i
Externí odkaz:
https://doaj.org/article/701080c0f48e4a55b3eb46cae5498963
Autor:
Tatjana Gruber-Rouh, Julian L. Wichmann, Leona S. Alizadeh, Lukas Lenga, Leon D. Gruenewald, Christoph Mader, Tommaso D'Angelo, Christian Booz, Silvio Mazziotti, Vitali Koch, Katrin Eichler, Thomas J. Vogl, Simon S. Martin, Stefan Wesarg, Ibrahim Yel, Nicole A Huizinga, Moritz H. Albrecht
Publikováno v:
Gruenewald, L D, Koch, V, Martin, S S, Yel, I, Eichler, K, Gruber-Rouh, T, Lenga, L, Wichmann, J L, Alizadeh, L S, Albrecht, M H, Mader, C, Huizinga, N A, D’Angelo, T, Mazziotti, S, Wesarg, S, Vogl, T J & Booz, C 2022, ' Diagnostic accuracy of quantitative dual-energy CT-based volumetric bone mineral density assessment for the prediction of osteoporosis-associated fractures ', European Radiology, vol. 32, no. 5, pp. 3076-3084 . https://doi.org/10.1007/s00330-021-08323-9
European Radiology, 32(5), 3076-3084. Springer Verlag
European Radiology, 32(5), 3076-3084. Springer Verlag
Objectives To evaluate the predictive value of volumetric bone mineral density (BMD) assessment of the lumbar spine derived from phantomless dual-energy CT (DECT)-based volumetric material decomposition as an indicator for the 2-year occurrence risk
Autor:
Boris Bodelle, Wolfgang Luboldt, Julian L. Wichmann, Sebastian Fischer, Thomas J. Vogl, Martin Beeres
Publikováno v:
European Journal of Radiology Open, Vol 3, Iss , Pp 259-263 (2016)
Purpose: To determine the value of the 2D multiple-echo data image combination (MEDIC) sequence relative to the short-tau inversion recovery (STIR) sequence regarding the depiction of chondral lesions in the patellofemoral joint. Materials and method
Externí odkaz:
https://doaj.org/article/23a1d27eb6e24b2c8db63d2f47bbb7d5
Autor:
Christian Booz, Vitali Koch, Julian L. Wichmann, Leona S. Alizadeh, Katrin Eichler, Tommaso D'Angelo, Iris Burck, Thomas J. Vogl, Silvio Mazziotti, Renate Hammerstingl, Tatjana Gruber-Rouh, Lukas Lenga, Ibrahim Yel, Moritz H. Albrecht, Leon D. Gruenewald, Simon S. Martin, Christoph Mader
Publikováno v:
European Radiology. 32:2168-2177
Objectives To investigate the diagnostic accuracy of color-coded contrast-enhanced dual-energy CT virtual noncalcium (VNCa) reconstructions for the assessment of lumbar disk herniation compared to unenhanced VNCa imaging. Methods A total of 91 patien
Autor:
Jakob Weiss, Michael Maurer, Dominik Ketelsen, Mike Notohamiprodjo, Dominik Zinsser, Julian L Wichmann, Konstantin Nikolaou, Fabian Bamberg, Ahmed E Othman
Publikováno v:
PLoS ONE, Vol 12, Iss 7, p e0180671 (2017)
To evaluate the effect of reduced z-axis scan coverage on diagnostic performance and radiation dose of neck CT in patients with suspected cervical abscess.Fifty-one patients with suspected cervical abscess were included and underwent contrast-enhance
Externí odkaz:
https://doaj.org/article/faeb8a24301d496dabfd546319351a1e