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Dynamic geometrical calibration for 3D cerebral angiography

Nassir Navab, Ali R. Bani-Hashemi, Matthias M. Mitschke, David W. Holdsworth, Rebecca Fahrig, Allan J. Fox, R. Graumann, Richard L. Van Metter, Jacob Beutel
1996 Medical Imaging 1996: Physics of Medical Imaging  
Recently there has been increasing interest in obtaining three-dimensional reconstructions of arterial vessels from multiple planar radiographs (obtained at angles around the object). Interventional angiography is the motivating application behind this research. Different methods have been proposed to acquire the planar data such as a gantry mounted x-ray image intensifier (XRII) or a C-arm mounted XRII. In order to obtain a threedimensional reconstruction from a C-arm mounted XRII the
more » ... y of the source and detector system must be characterized. We have designed a calibration system that provides the necessary trajectory information using uniquely identifiable markers positioned on a cylinder. This calibration ring is to be placed around the patient's head, and consists of steel balls positioned in a predefined arrangement on a cylindrical acrylic support. The balls are arranged such that calibration can be done from almost any partial view, allowing reconstruction of a region of interest (ROl). Steel balls are placed around an acrylic cylinder, restricted to a band approximately 8.5 mm wide, thereby obscuring only a small fraction of the image. In this case the radiograph includes the region of interest (ROT) as well as a partial view of the calibration ring. This enables us to recover the geometry of X-ray imaging system from each individual frame. We call this process "dynamic calibration" as opposed to "off-line" calibration procedures which try to characterize the motion of C-arm before introducing the patient. We have designed a calibration system using uniquely identifiable markers positioned on a cylinder. This 0-8 194-2083-2/96/$6.oo SPIE Vol. 2708 / 361 Downloaded from SPIE Digital Library on 10 Jan 2010 to 129.187.254.46. Terms of Use: http://spiedl.org/terms
doi:10.1117/12.237798 fatcat:yrw5zvswsvhh3ikayhowzshsre

Multicenter Assessment of CT Pneumonia Analysis Prototype for Predicting Disease Severity and Patient Outcome

Fatemeh Homayounieh, Marcio Aloisio Bezerra Cavalcanti Rockenbach, Shadi Ebrahimian, Ruhani Doda Khera, Bernardo C. Bizzo, Varun Buch, Rosa Babaei, Hadi Karimi Mobin, Iman Mohseni, Matthias Mitschke, Mathis Zimmermann, Felix Durlak (+3 others)
2021 Journal of digital imaging  
Bizzo 1,2 · Varun Buch 2 · Rosa Babaei 3 · Hadi Karimi Mobin 3 · Iman Mohseni 3 · Matthias Mitschke 4 · Mathis Zimmermann 4 · Felix Durlak 4 · Franziska Rauch 4 · Subba R Digumarthy 1 · Mannudeep K.  ... 
doi:10.1007/s10278-021-00430-9 pmid:33634416 fatcat:uutg2jzwhjcjjexeeodqh3r4im

Page 83 of None Vol. 29, Issue 4 [page]

1994 None  
Quantenoptik, Universitat Hannover, D-30167 Hannover, Germany Prank, Klaus, Heio Harms, Matthias Dammig, Georg Brabant, Fedor Mitschke, and Rolf-Dieter Hesch.  ...  KLAUS PRANK, HEIO HARMS, MATTHIAS DAMMIG, GEORG BRABANT, FEDOR MITSCHKE, AND ROLF-DIETER HESCH Abteilung Klinische Endokrinologie, Medizinische Hochschule Hannover, D-30623 Hannover; and Institut fiir  ... 

Regulatory RNAs in photosynthetic cyanobacteria

Matthias Kopf, Wolfgang R. Hess
2015 FEMS Microbiology Reviews  
PCC 6803 genome-wide TSS map (Mitschke et al. 2011a) .  ...  PCC 7120, 200 nt was used (Mitschke et al. 2011b; Dugar et al. 2013) .  ... 
doi:10.1093/femsre/fuv017 pmid:25934122 fatcat:esmhgchsgjgafmjuuhnaoggysm

"… zwischen Tschechen und Deutschen kulturell vermitteln". Erwin Schulhoff in the Artistic and Social Contexts of the First Half of the 20th Century
"… zwischen Tschechen und Deutschen kulturell vermitteln". Erwin Schulhoff v uměleckých a sociálních kontextech první poloviny 20. století

Matthias Herrmann
2020 Musicologica Olomucensia  
Jahrhunderts Matthias Herrmann Schicksal in zwei Diktaturen Zwei diktatorische Systeme brachten im 20. Jahrhundert die zivilisierte Welt an den Rand des Abgrunds.  ...  Lasar Segall Constantin von Mitschke-Collande. 19 I. nicht, nicht doch, ah, Du!, bitte, nicht doch, sei doch lieb! Du …, ah … II. Ah …, Du … nicht so wild!  ... 
doi:10.5507/mo.2020.003 fatcat:ix7qcti5hfckjdcpczpklmwcry

Grafiken als gerichtete azyklische Graphen. Ein Konzept zur Integration von Grafik in Dokumente [chapter]

Frieder Nake, Henrik Wening
1988 Informatik-Fachberichte  
Universität Bremen, Informatik (Eigendruck), Juni 2000. 44-55, 56-63,, 190-198 SÖREN BERNSTEIN, MATTHIAS KRAUSS, FRIEDER NAKE, MARCO PANTALEO, BERND TITZ (Hrsg.): diMension.  ...  Universität Bremen, artec-paper 59, Feb. 1998, 209-215 FRIEDER NAKE, PETER VON MITSCHKE-COLLANDE: The information technology challenge to lifelong learning. Summary report on a working group.  ... 
doi:10.1007/978-3-642-74127-2_29 dblp:conf/gi/NakeW88 fatcat:6bfnppwslzcdfgko2vi6rbqiua

Page 746 of Applied Physics. A and B Vol. A49, Issue 6 [page]

1989 Applied Physics. A and B  
A 49/1, 55-60 (1989) 66.30 Matthias E. Reif J. A 49/2, 199-204 (1989) 42.85F Purcell S.T. Heinrich B. A 49/5, 473-490 (1989) 75.70 Matthias E. Reichling M. A 49/6, 707-710 (1989) 78.70D Puretzky A.A.  ...  B 49/2, 139-143 (1989) 82.50 Mitschke F. Nalik J. B 49/3, 191-199 (1989) 42.65P Rama Rao K.V.S. Karve RS. B 49/6, 571-576 (1989) 82.50 Mittal J.P. Karve RS. B 49/6, 571-576 (1989) 82.50 Ratto J.J.  ... 

Notabene

Ferdinand Oertel
2008 Communicatio Socialis  
Die katholischen Bischöfe haben Matthias Kopp auf ihrer Herbstversammlung in Fulda zu ihrem neuen Pressesprecher gewählt.  ...  Vor dem Hintergrund des Be- deutungsschwundes der Kirche in der deutschen Gesellschaft bezeichnete der Direktor von McKinsey-Deutschland, Thomas von Mitschke-Collande, es als Voraussetzung für eine  ... 
doi:10.5771/0010-3497-2008-4-425 fatcat:wfcesd3monfefejo2kahprhlou

Expression profiling of the bloom-forming cyanobacterium Nodularia CCY9414 under light and oxidative stress conditions

Matthias Kopf, Fred Möke, Hermann Bauwe, Wolfgang R Hess, Martin Hagemann
2015 The ISME Journal  
Interestingly, an ortholog of this asRNA also exists in Anabaena PCC7120, in which it seems to decrease cpcBAC expression under nitrogen-limiting conditions (Mitschke et al., 2011b) .  ...  RNA sequencing For transcriptome analysis, cDNA libraries were constructed (vertis Biotechnologie AG, Freising, Germany) and analyzed on an Illumina HiSeq 2000 sequencer as previously described (Mitschke  ... 
doi:10.1038/ismej.2015.16 pmid:25689027 pmcid:PMC4579465 fatcat:5st3f5xpynbidkv367tghhv4kq

Iron Deprivation in Synechocystis : Inference of Pathways, Non-coding RNAs, and Regulatory Elements from Comprehensive Expression Profiling

Miguel A. Hernández-Prieto, Verena Schön, Jens Georg, Luísa Barreira, João Varela, Wolfgang R. Hess, Matthias E. Futschik
2012 G3: Genes, Genomes, Genetics  
The employed platform comprises over 42 000 probes, including the majority of previously detected ncRNA sequences (Georg et al. 2009; Mitschke et al. 2011a ).  ...  Similar asRNAs complementary to furA were also reported for Microcystis and Synechocystis (Martin-Luna et al. 2011; Mitschke et al. 2011a; Sevilla et al. 2011) .  ... 
doi:10.1534/g3.112.003863 pmid:23275872 pmcid:PMC3516471 fatcat:msgnzc6d3rg23m2bcfd5fq5cgu

Identification of Metabolites of the Anaerobic Degradation of n‐Hexane by Denitrifying Betaproteobacterium Strain HxN1

Jens Christoffers, Julian Küppers, Nico Mitschke, Simone Heyen, Ralf Rabus, Heinz Wilkes
2019 ChemBioChem  
MTBE was obtained as agenerous gift from Evonik Industries, Marl, Germany.W ea re furthermore grateful to Matthias Klat and Eric Meding for preliminary synthetic studiesa nd Elisabeth Jaskulskafor assistance  ...  Mitschke, + S. Heyen,P rof. Dr.R.R abus, Prof.Dr. H.  ... 
doi:10.1002/cbic.201900375 pmid:31294892 pmcid:PMC7028053 fatcat:kx74b3i72ff6njbe7zo7bqaufq

Globales Lernen in medial vermittelten Arbeitsgruppen. Kompetenzentwicklung von Führungskräften für globale Zusammenarbeit

Alexander Wick, B. Alexander Dauner, Reinhard Mitschke
2014
Matthias Barth und Marco Rieckmann stellen in ihrem Beitrag die Bedeutung neuer Medien für Globales Lernen in virtuellen Hochschulseminaren zwischen Nord und Süd vor.Alexander Wick/B.  ...  Matthias Barth/Marco Rieckmann 19 Nachhaltigkeit virtuell lernen? Nicole Flindt 25 Globales Lernen in internationalen virtuellen Hochschulseminaren Kommentar 29 From Paris to Paradise?  ... 
doi:10.25656/01:9590 fatcat:wzeupn6at5eyjewydrthnfs6wi

Pfeiffer, Ursula: Kontinuität und Kontingenz. Zeitlichkeit als Horizont systematischer Überlegungen in der Erziehungswissenschaft. Bad Heilbrunn: Klinkhardt, 2007, 176 S. [Rezension]

Gregor Lang-Wojtasik
2014
Alexander Dauner/Reinhard Mitschke 14 Globales Lernen in medial vermittelten Arbeitsgruppen Matthias Barth/Marco Rieckmann 19 Nachhaltigkeit virtuell lernen? 32.  ...  Matthias Barth und Marco Rieckmann stellen in ihrem Beitrag die Bedeutung neuer Medien für Globales Lernen in virtuellen Hochschul- seminaren zwischen Nord und Süd vor.  ... 
doi:10.25656/01:9693 fatcat:a7mavmpwtzbyfn23fumlysoybq

WEED e.V./Germanwatch e. V. (2007): Der Weg eines Computers – von der globalen Produktion bis zur Verschrottung. Bonn. [...] [Sammelrezension]

Sarah Lange
2014
Alexander Dauner/Reinhard Mitschke 14 Globales Lernen in medial vermittelten Arbeitsgruppen Matthias Barth/Marco Rieckmann 19 Nachhaltigkeit virtuell lernen?  ...  Alexander Dauner und Reinhard Mitschke verdeutlichen an- hand eines derzeit in Erprobung befi ndlichen empirischen Projekts die mögliche Bedeutung Globalen Lernens in einem betriebswirt- schaftlichen  ... 
doi:10.25656/01:9694 fatcat:x6r27b6jbfbarm2xvukuab7aby

A novel thermoregulatory role for PDE10A in mouse and human adipocytes

Mohammed K Hankir, Mathias Kranz, Thorsten Gnad, Juliane Weiner, Sally Wagner, Winnie Deuther‐Conrad, Felix Bronisch, Karen Steinhoff, Julia Luthardt, Nora Klöting, Swen Hesse, John P Seibyl (+6 others)
2016 EMBO Molecular Medicine  
inhibition of PDEs 1, 4, and 5 promotes a negative energy balance by increasing energy expenditure through either increased BAT function and/or browning of WAT (Ayala et al, 2007; Park et al, 2012; Mitschke  ...  recruited to the nucleus downstream of PKA/PKG signaling, and thus, elevations of cAMP and cGMP in the cytosol also induce UCP-1 transcription (Haas et al, 2009; Nikolic et al, 2011; Bordicchia et al, 2012; Mitschke  ... 
doi:10.15252/emmm.201506085 pmid:27247380 pmcid:PMC4931292 fatcat:socjtuwuejfwbkjgm6xfy4d2r4
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