Emphysema quantification using chest CT: influence of radiation dose reduction and reconstruction technique

Autor: Annemarie M. den Harder, Erwin de Boer, Suzanne J. Lagerweij, Martijn F. Boomsma, Arnold M. R. Schilham, Martin J. Willemink, Julien Milles, Tim Leiner, Ricardo P. J. Budde, Pim A. de Jong

Publikováno v: European Radiology Experimental, Vol 2, Iss 1, Pp 1-10 (2018)

Abstract Background Computed tomography (CT) emphysema quantification is affected by both radiation dose (i.e. image noise) and reconstruction technique. At reduced dose, filtered back projection (FBP) results in an overestimation of the amount of em

Externí odkaz: https://doaj.org/article/03325a272a1b4a4da986b7a6ec79f1f6

The effects of computed tomography with iterative reconstruction on solid pulmonary nodule volume quantification.

Autor: Martin J Willemink, Jaap Borstlap, Richard A P Takx, Arnold M R Schilham, Tim Leiner, Ricardo P J Budde, Pim A de Jong

Publikováno v: PLoS ONE, Vol 8, Iss 2, p e58053 (2013)

BackgroundThe objectives of this study were to evaluate the influence of iterative reconstruction (IR) on pulmonary nodule volumetry with chest computed tomography (CT).MethodsTwenty patients (12 women and 8 men, mean age 61.9, range 32-87) underwent

Externí odkaz: https://doaj.org/article/0b1526671a9b4e379143ab519369b24d

Contrast agent concentration optimization in CTA using low tube voltage and dual-energy CT in multiple vendors: a phantom study

Autor: Martin J. Willemink, Robbert W. van Hamersvelt, Tim Leiner, Marco Das, Nico Buls, Pim A. de Jong, Nienke G. Eijsvoogel, Casper Mihl, Arnold M. R. Schilham

Publikováno v: International Journal of Cardiovascular Imaging, 34(8), 1265. Springer Netherlands
International Journal of Cardiovascular Imaging, 34(8), 1265-1275. Springer

We investigated the feasibility and extent to which iodine concentration can be reduced in computed tomography angiography imaging of the aorta and coronary arteries using low tube voltage and virtual monochromatic imaging of 3 major dual-energy CT (

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35d90ae3684ef6936482bf552b1f38c6
https://doi.org/10.1007/s10554-018-1329-x

Accuracy of iodine quantification using dual energy CT in latest generation dual source and dual layer CT

Autor: Arnold M. R. Schilham, Rozemarijn Vliegenthart, Bernhard Schmidt, Gert Jan Pelgrim, Martin J. Willemink, Matthijs Oudkerk, Julien Milles, Thomas Flohr, Robbert W. van Hamersvelt, Tim Leiner

Publikováno v: European Radiology, 27(9), 3904-3912. SPRINGER
European Radiology
European Radiology, 27(9), 3904. Springer Verlag

OBJECTIVE: To determine the accuracy of iodine quantification with dual energy computed tomography (DECT) in two high-end CT systems with different spectral imaging techniques.METHODS: Five tubes with different iodine concentrations (0, 5, 10, 15, 20

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b10e2733c59fc0252fc943f489a35715
https://doi.org/10.1007/s00330-017-4752-9

Cardiovascular CT: Image Reconstruction

Autor: Arnold M. R. Schilham, Annemarie M. den Harder, Martin J. Willemink

Publikováno v: Contemporary Medical Imaging ISBN: 9781603272360

Image reconstruction is the formation of images based on CT projection data. This process has undergone tremendous improvements over the last years. The current chapter covers different types of image reconstructions. First, the steps before the actu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cf07c4ea9db34704dfc3cca631de8290
https://doi.org/10.1007/978-1-60327-237-7_11