X-ray computed tomography
WA Kalender - Physics in medicine & Biology, 2006 - iopscience.iop.org
… ) and later in an excellent text book by this journal’s editor (Webb 1990); a recent review
of CT basics and its development from the first decade until today can be found in (Kalender …
of CT basics and its development from the first decade until today can be found in (Kalender …
Iterative reconstruction methods in X-ray CT
M Beister, D Kolditz, WA Kalender - Physica medica, 2012 - Elsevier
Iterative reconstruction (IR) methods have recently re-emerged in transmission x-ray computed
tomography (CT). They were successfully used in the early years of CT, but given up …
tomography (CT). They were successfully used in the early years of CT, but given up …
Flat-detector computed tomography (FD-CT)
WA Kalender, Y Kyriakou - European radiology, 2007 - Springer
… The same statement holds for the weighted CTDI w , which is defined as CTDI w =1/3·CTDI
c +2/3·CTDI p , where c and p denote central and peripheral positions in the phantom. …
c +2/3·CTDI p , where c and p denote central and peripheral positions in the phantom. …
Spiral volumetric CT with single-breath-hold technique, continuous transport, and continuous scanner rotation.
WA Kalender, W Seissler, E Klotz, P Vock - Radiology, 1990 - pubs.rsna.org
Continuous computed tomographic (CT) scanning of organ volumes during a single breath
hold was studied. The authors modified the table feed mechanism of a continuously rotating …
hold was studied. The authors modified the table feed mechanism of a continuously rotating …
[BOOK][B] Computed tomography: fundamentals, system technology, image quality, applications
WA Kalender - 2011 - books.google.com
… Kalender, born in 1949, studied physics and medical physics in Bonn, Germany, and at the
University of Wisconsin, Madison, Wisconsin. Active from 1979 to 1995, ie for exactly 16 years…
University of Wisconsin, Madison, Wisconsin. Active from 1979 to 1995, ie for exactly 16 years…
Detection of coronary artery stenoses by contrast-enhanced, retrospectively electrocardiographically-gated, multislice spiral computed tomography
…, W Moshage, W Bautz, WG Daniel, WA Kalender… - Circulation, 2001 - Am Heart Assoc
Background—Multislice spiral computed tomography (MSCT) with retrospectively ECG-gated
image reconstruction permits coronary artery visualization. We investigated the method’s …
image reconstruction permits coronary artery visualization. We investigated the method’s …
Noninvasive coronary angiography by retrospectively ECG-gated multislice spiral CT
…, W Bautz, WG Daniel, WA Kalender, W Moshage - Circulation, 2000 - Am Heart Assoc
Background—We investigated the applicability and image quality of contrast-enhanced
coronary artery visualization by multislice spiral CT using retrospective ECG gating. Methods …
coronary artery visualization by multislice spiral CT using retrospective ECG gating. Methods …
Multisection CT protocols: sex-and age-specific conversion factors used to determine effective dose from dose-length product
PD Deak, Y Smal, WA Kalender - Radiology, 2010 - pubs.rsna.org
… equal to CTDI w . Table 4 gives the values of normalized measured CTDI w as a function of
… For the head and neck regions, the DLP was computed from the CTDI w measured in the 16-…
… For the head and neck regions, the DLP was computed from the CTDI w measured in the 16-…
Reduction of CT artifacts caused by metallic implants.
WA Kalender, R Hebel, J Ebersberger - Radiology, 1987 - pubs.rsna.org
A technique to reduce metallic implant artifacts on computed tomography scans is presented.
The implant boundaries are determined semiautomatically; the missing projection data are …
The implant boundaries are determined semiautomatically; the missing projection data are …
Evaluation of a prototype dual‐energy computed tomographic apparatus. I. Phantom studies
WA Kalender, WH Perman, JR Vetter, E Klotz - Medical physics, 1986 - Wiley Online Library
We report the evaluation of a prototype dual‐energy implementation using rapid kVp switching
on a clinical computed tomographic scanner. The method employs prereconstruction …
on a clinical computed tomographic scanner. The method employs prereconstruction …