2011
DOI: 10.1118/1.3553401
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Abstract: Purpose: The objective of the study was to demonstrate that, in x-ray computed tomography ͑CT͒, more than two types of materials can be effectively separated with the use of an energy resolved photon-counting detector and classification methodology. Specifically, this applies to the case when contrast agents that contain K-absorption edges in the energy range of interest are present in the object. This separation is enabled via the use of recently developed energy resolved photoncounting detectors with multipl… Show more

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Cited by 174 publications
(83 citation statements)
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“…Using a method proposed by Wang et al, 10 we determined the angle of separation of two materials. With the vector of linear attenuation coefficients defined as μ m = (μ e=1 , μ e=2 , .…”
Section: Iia Separation Of Materialsmentioning
confidence: 99%
“…Using a method proposed by Wang et al, 10 we determined the angle of separation of two materials. With the vector of linear attenuation coefficients defined as μ m = (μ e=1 , μ e=2 , .…”
Section: Iia Separation Of Materialsmentioning
confidence: 99%
“…In addition, the current PCD system with two to four adjustable energy thresholds can acquire dual-and multienergy projections from a single scan, which could be used in multimaterial decomposition (12). The higher Hounsfield unit of the spinal canal in EID images can be attributed to the slight beam-hardening artifact caused by the vertebral body.…”
Section: Figurementioning
confidence: 99%
“…Subsequently, a preclinical ED-CT system with a CdTe detector array (Feuerlein et al, 2008;Wang et al, 2011) has been developed to perform enhanced K-edge CT using contrast media in Medical Imaging. However, it was difficult to increase the count rate to reduce X-ray exposure time for ED-CT without pileups of the event pulses produced by the photon absorptions.…”
Section: Introductionmentioning
confidence: 99%