Výsledky vyhledávání - "Dieter Nagel"

Akademický článek

CT Pulmonary Angiography at Reduced Radiation Exposure and Contrast Material Volume Using Iterative Model Reconstruction and iDose4 Technique in Comparison to FBP.

Autor: Azien Laqmani, Maximillian Kurfürst, Sebastian Butscheidt, Susanne Sehner, Jakob Schmidt-Holtz, Cyrus Behzadi, Hans Dieter Nagel, Gerhard Adam, Marc Regier

Publikováno v: PLoS ONE, Vol 11, Iss 9, p e0162429 (2016)

PURPOSE:To assess image quality of CT pulmonary angiography (CTPA) at reduced radiation exposure (RD-CTPA) and contrast medium (CM) volume using two different iterative reconstruction (IR) algorithms (iDose4 and iterative model reconstruction (IMR))

Externí odkaz: https://doaj.org/article/41dd4b46de62456086daa8d4e6de064f

Zobrazit plný text záznamu

Akademický článek

Derivation and Mapping of Critical Loads for Nitrogen and Trends in Their Exceedance in Germany

Autor: Hans-Dieter Nagel, Heinz-Detlef Gregor

Publikováno v: The Scientific World Journal, Vol 1, Pp 936-944 (2001)

The term “critical load” means a quantitative estimate of an exposure to one or more pollutants below which significant harmful effects on specified sensitive elements of the environment do not occur, according to present knowledge. In the case o

Externí odkaz: https://doaj.org/article/190186f9873845e2843f958b799a3466

Zobrazit plný text záznamu

Iterative Model Reconstruction (IMR) in MDCT Below 2 mSv for the Detection of Urinary Calculi: Diagnostic Accuracy and Image Quality in Comparison to Filtered Back-Projection and 4th Generation Iterative Reconstruction (iDose4)

Autor: Maxim Avanesov, Hans Dieter Nagel, Marc Regier, Simon Veldhoen, Max Kurfürst, Cyrus Behzadi, Sebastian Butscheidt, Clemens Spink, Azien Laqmani, Gerhard Adam, Jakob Schmidt-Holtz

Publikováno v: RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren. 190:630-636

The purpose of the study was to assess the impact of iterative model reconstruction (IMR) on reader confidence with respect to stone detection and image quality in comparison to filtered back-projection (FBP) and iDose level 4 (iDose4) in abdominal M

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3910692b4fee711a7163f982e945ef2c
https://doi.org/10.1055/s-0044-100724

Zobrazit plný text záznamu

Comparison of image quality and visibility of normal and abnormal findings at submillisievert chest CT using filtered back projection, iterative model reconstruction (IMR) and iDose 4 ™

Autor: Azien Laqmani, Gerhard Adam, Maxim Avanesov, Jakob Schmidt-Holtz, Hans Dieter Nagel, Cyrus Behzadi, Susanne Sehner, Thorsten Derlin, Maximillian Kurfürst, Marc Regier, Sebastian Butscheidt

Publikováno v: European Journal of Radiology. 85:1971-1979

Objective To compare both image quality and visibility of normal and abnormal findings at submillisievert chest CT (smSv-CT) using filtered back projection (FBP) and the two different iterative reconstruction (IR) techniques iterative model reconstru

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2103cdef4bf240488f54600e429fc0f0
https://doi.org/10.1016/j.ejrad.2016.09.001

Zobrazit plný text záznamu

Soil Acidification in German Forest Soils

Autor: Nils König, Henning Meesenburg, Amalie Lauer, Winfried Riek, Nadine Eickenscheidt, Bernd Ahrends, Claus-Georg Schimming, Hans-Dieter Nagel, Heike Fortmann, Jan Evers, Karl Josef Meiwes, Nicole Wellbrock, Erik Grüneberg

Publikováno v: Ecological Studies ISBN: 9783030157326

Many forest soils are sensitive to acidification due to input of acids from the atmosphere. As acidic deposition was strongly reduced during the last decades, the question arises, if indications of recovery from soil acidification are detectable in G

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fc56931cfe17999b186ac515ac8e2081
https://doi.org/10.1007/978-3-030-15734-0_4

Zobrazit plný text záznamu

Atmospheric nitrogen deposition to terrestrial ecosystems across Germany

Autor: Peter J. H. Builtjes, Hans-Dieter Nagel, Sabine Banzhaf, Markus Geupel, Richard Kranenburg, Carlijn Hendriks, Arjo Segers, Roy Wichink Kruit, Thomas Scheuschner, Angela von Schlutow, Martijn Schaap

Biodiversity is strongly affected by the deposition of nitrogen and sulfur on terrestrial ecosystems. In this paper we present new quantitative estimates of the deposition of atmospheric nitrogen to ecosystems across Germany. The methodology combines

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c4a9b1086adb7814e8f2939275bedb9
https://www.biogeosciences-discuss.net/bg-2017-491/

Zobrazit plný text záznamu

Detection of rain areas with airborne radar

Autor: Dieter Nagel

Publikováno v: 2017 18th International Radar Symposium (IRS).

This paper deals with a method of detecting strong rain areas as well as regions with light rain when using airborne radar. Especially thunderstorm cells in a light rain environment are intended to be recognized. Although this type of radar is no hig

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::38cf257c51dc703d87042523e8610ae5
https://doi.org/10.23919/irs.2017.8008094

Zobrazit plný text záznamu

256-MDCT for evaluation of urolithiasis: Iterative reconstruction allows for a significant reduction of the applied radiation dose while maintaining high subjective and objective image quality

Autor: Diego Hammerle, Jan-Hendrik Buhk, Marc Regier, Thorsten Derlin, Felix K.-H. Chun, Hans Dieter Nagel, Gerhard Adam, M. Karul, Susanne Sehner, S Veldhoen, Azien Laqmani

Publikováno v: Journal of Medical Imaging and Radiation Oncology. 58:283-290

Purpose Multidetector CT (MDCT) is the established imaging modality in diagnostics of urolithiasis. The aim of iterative reconstruction (IR) is to allow for a radiation dose reduction while maintaining high image quality. This study evaluates its per

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3a16a0ed6d49ee6c2567698f2fc0bb0f
https://doi.org/10.1111/1754-9485.12159

Zobrazit plný text záznamu

Plný text ve formátu HTML

CT Pulmonary Angiography at Reduced Radiation Exposure and Contrast Material Volume Using Iterative Model Reconstruction and iDose4 Technique in Comparison to FBP

Autor: Sebastian Butscheidt, Jakob Schmidt-Holtz, Gerhard Adam, Azien Laqmani, Hans Dieter Nagel, Marc Regier, Cyrus Behzadi, Maximillian Kurfürst, Susanne Sehner

Publikováno v: PLoS ONE
PLoS ONE, Vol 11, Iss 9, p e0162429 (2016)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d431880c6d39f8e98fcfda51199c121
https://pubmed.ncbi.nlm.nih.gov/27611448

Zobrazit plný text záznamu

Tracking airborne targets through windmill areas and rain clutter with ground based radar

Autor: Christoph Neumann, Dieter Nagel

Publikováno v: 2016 17th International Radar Symposium (IRS).

Due to the growing number of wind farms, one of the most important tasks for ground based radars is the suppression of windmill returns which might cause spurious target detections [5]. The detection of targets in the presence of strong rain clutter

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2d728b14284046ba0e4e4ae077250f3b
https://doi.org/10.1109/irs.2016.7497348

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání