Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Christian, Steiding"'
Autor:
Sojin, Shim, Daniel, Kolditz, Christian, Steiding, Veikko, Ruth, Andreas M, Hoetker, Jan, Unkelbach, Andreas, Boss
Publikováno v:
Medical Physics. 50:2417-2428
Spiral breast computed tomography (BCT) equipped with a photon-counting detector is a new radiological modality allowing for the compression-free acquisition of high-resolution 3-D datasets of the breast. Optimized dose exposu04170/re setups accordin
Publikováno v:
Investigative Radiology. 52:349-359
The performance of metal artifact reduction (MAR) methods in x-ray computed tomography (CT) suffers from incorrect identification of metallic implants in the artifact-affected volumetric images. The aim of this study was to investigate potential impr
Autor:
Barbara Brehm, Willi A. Kalender, Christian Steiding, Matthias Hammon, Evelyn Wenkel, Daniel Kolditz, Ann-Christin Rößler, Veikko Ruth, Rüdiger Schulz-Wendtland, Caroline Preuss, Sandra Christina Peter
Publikováno v:
Academic Radiology. 24:184-190
Rationale and Objectives This study compared a novel photon-counting breast computed tomography (pcBCT) system with digital mammography (DM) and digital breast tomosynthesis (DBT) systems. For this reason, surgical specimens were examined with all th
Publikováno v:
Medical physicsReferences. 47(7)
Purpose Contrast-enhanced imaging of the breast is frequently used in breast MRI and has recently become more common in mammography. The purpose of this study was to make single-scan contrast-enhanced imaging feasible for photon-counting breast CT (p
Autor:
Willi A. Kalender, Evelyn Wenkel, Ann-Christin Rößler, Ferdinand Lück, Veikko Ruth, Christian Steiding, Daniel Kolditz
Publikováno v:
European Radiology. 27:1081-1086
X-ray computed tomography (CT) has been proposed and evaluated multiple times as a potentially alternative method for breast imaging. All efforts shown so far have been criticized and partly disapproved because of their limited spatial resolution and
Autor:
Martin Hupfer, Jan D. Kuttig, Daniel Kolditz, Christian Steiding, Willi A. Kalender, Marek Karolczak
Publikováno v:
Physica Medica. 31:406-413
Purpose To investigate the dose saving potential of direct-converting CdTe photon-counting detector technology for dedicated breast CT. Materials and methods We analyzed the modulation transfer function (MTF), the noise power spectrum (NPS) and the d
Publikováno v:
RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren. 187:283-290
Purpose: The aim of this work was to implement, validate, and compare two procedures for routine image quality (IQ) assurance in dental cone-beam computed tomography (CBCT): 1. the German standard DIN 6868 – 161 introduced in 2013 and 2. the establ
Publikováno v:
Physics in Medicine and Biology. 59:5691-5706
The purpose of this study was to validate the use of a single shaped filter (SF) for computed tomography (CT) using variable source-to-filter distance (SFD) for the examination of different object diameters.A SF was designed by performing simulations
Autor:
Christian Steiding, Felix Althoff, Martin Hupfer, Fabian Eisa, Willi A. Kalender, Robert Brauweiler, Tristan Nowak
Publikováno v:
Medical Physics. 39:2249-2260
Purpose: Modern computed tomography(CT)systems are supporting increasingly fast rotation speeds, which are a prerequisite for fast dynamic acquisition, e.g. in perfusion imaging, and for new modalities such as dedicated breast CT, where breathhold sc
Publikováno v:
Medical physics. 41(3)
Thousands of cone-beam computed tomography (CBCT) scanners for vascular, maxillofacial, neurological, and body imaging are in clinical use today, but there is no consensus on uniform acceptance and constancy testing for image quality (IQ) and dose ye