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Influence of Exposure Parameters and Iterative Reconstruction on MDCT-based Lung Densitometry – An ex vivo Phantom Study

P Leutz, MO Wielpütz, HU Kauczor, O Weinheimer, S Skornitzke, G Pahn, W Stiller, M Puderbach · Pneumologie · 2016 · Heft 07

Dokument
826136
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Jahr
2016
Publikation
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Metadaten
DOI
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Bibliografische Angaben

Zeitschrift
Pneumologie
Autor:innen
P Leutz, MO Wielpütz, HU Kauczor, O Weinheimer, S Skornitzke, G Pahn, W Stiller, M Puderbach
Ausgabe
Heft 07 / 2016
Seiten
–
Erschienen: 2016-07-28 00:00:00
ISSN
0934-8387
DOI
10.1055/s-0036-1584640

Zusammenfassung

Objectives: To evaluate the influence of exposure parameters and raw-data-based iterative reconstruction (IR) on lung densitometry on multidetector CT (MDCT) by dedicated in-house software. Material and Methods: 10 fresh porcine heart-lung-explants (4 simulated high, 6 simulated low attenuating chest wall) were prepared in an ex vivo chest phantom. MDCT scans were performed with 120 kV and 80 kV, each combined with 120, 60, 30 and 12 mAs, and reconstructed with both filtered back projection (FBP) and IR, resulting in 16 datasets per lung. Mean air density (AD), noise and lung density (LD) were measured by automa…

Schlagworte

Pneumologie