Dirk Schafer
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Explore the profile of Dirk Schafer including associated specialties, affiliations and a list of published articles.
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44
Citations
636
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Recent Articles
1.
Stahl F, Almqvist H, Aspelin A, Kolloch J, Ghalamkari O, Gontu V, et al.
Clin Neuroradiol
. 2024 Jul;
34(4):929-937.
PMID: 39052054
Purpose: Cone-beam CT in the interventional suite could be an alternative to CT to shorten door-to-thrombectomy time. However, image quality in cone-beam CT is limited by artifacts and poor differentiation...
2.
Charles Y, Al Ansari R, Collinet A, De Marini P, Schwartz J, Nachabe R, et al.
Sensors (Basel)
. 2022 Jun;
22(12).
PMID: 35746396
Metal artifact reduction (MAR) algorithms are used with cone beam computed tomography (CBCT) during augmented reality surgical navigation for minimally invasive pedicle screw instrumentation. The aim of this study was...
3.
Stahl F, Schafer D, Omar A, van de Haar P, van Nijnatten F, Withagen P, et al.
Med Phys
. 2021 Oct;
48(11):6740-6754.
PMID: 34622973
Purpose: Conventional cone-beam computed tomography CT (CBCT) provides limited discrimination between low-contrast tissues. Furthermore, it is limited to full-spectrum energy integration. A dual-energy CBCT system could be used to separate...
4.
Berta M, Dethlefsen F, Ebert M, Schafer D, Dahmke A
Environ Sci Technol
. 2018 Mar;
52(8):4937-4949.
PMID: 29527891
Hydrogen storage in geological formations is one of the most promising technologies for balancing major fluctuations between energy supply from renewable energy plants and energy demand of customers. If hydrogen...
5.
Tacher V, Duran R, Lin M, Sohn J, Sharma K, Wang Z, et al.
Radiology
. 2015 Dec;
279(3):741-53.
PMID: 26678453
Purpose To assess the visibility of radiopaque microspheres during transarterial embolization (TAE) in the VX2 rabbit liver tumor model by using multimodality imaging, including single-snapshot radiography, cone-beam computed tomography (CT),...
6.
Fajmut A, Emersic T, Dobovisek A, Antic N, Schafer D, Brumen M
IET Syst Biol
. 2015 Sep;
9(5):204-15.
PMID: 26405144
The authors developed a mathematical model of arachidonic acid (AA) degradation to prostaglandins (PGs) and leukotrienes (LTs), which are implicated in the processes of inflammation and hypersensitivity to non-steroidal anti-inflammatory...
7.
Schafer D, Dressen P, Brettner S, Rath N, Molderings G, Jensen K, et al.
J Transl Med
. 2014 Aug;
12:213.
PMID: 25113638
Background: Systemic mast cell activation disease (MCAD) is characterized by an enhanced release of mast cell-derived mediators, including eicosanoids, which induce a broad spectrum of clinical symptoms. Accordingly, the diagnostic...
8.
Mory C, Auvray V, Zhang B, Grass M, Schafer D, Rit S, et al.
J Xray Sci Technol
. 2014 Apr;
22(2):253-70.
PMID: 24699351
Background: 4D cardiac computed tomography aims at reconstructing the beating heart from a series of 2D projections and the simultaneously acquired electrocardiogram. Each cardiac phase is reconstructed by exploiting the...
9.
Mory C, Auvray V, Zhang B, Grass M, Schafer D, Chen S, et al.
Med Phys
. 2014 Feb;
41(2):021903.
PMID: 24506624
Purpose: Reconstruction of the beating heart in 3D + time in the catheter laboratory using only the available C-arm system would improve diagnosis, guidance, device sizing, and outcome control for...
10.
Haase C, Schafer D, Dossel O, Grass M
Comput Med Imaging Graph
. 2014 Jan;
38(3):224-31.
PMID: 24444681
Tracking the location of medical devices in interventional X-ray data solves different problems. For example the motion information of the devices is used to determine cardiac or respiratory motion during...