| Title |
Dual-energy CT: a phantom comparison of different platforms for abdominal imaging
|
|---|---|
| Published in |
European Radiology, February 2018
|
| DOI | 10.1007/s00330-017-5238-5 |
| Pubmed ID | |
| Authors |
Thorsten Sellerer, Peter B. Noël, Manuel Patino, Anushri Parakh, Sebastian Ehn, Sascha Zeiter, Jasmin A. Holz, Johannes Hammel, Alexander A. Fingerle, Franz Pfeiffer, David Maintz, Ernst J. Rummeny, Daniela Muenzel, Dushyant V. Sahani |
| Abstract |
Evaluation of imaging performance across dual-energy CT (DECT) platforms, including dual-layer CT (DLCT), rapid-kVp-switching CT (KVSCT) and dual-source CT (DSCT). A semi-anthropomorphic abdomen phantom was imaged on these DECT systems. Scans were repeated three times for CTDIvol levels of 10 mGy, 20 mGy, 30 mGy and different fat-simulating extension rings. Over the available range of virtual-monoenergetic images (VMI), noise as well as quantitative accuracy of hounsfield units (HU) and iodine concentrations were evaluated. For all VMI levels, HU values could be determined with high accuracy compared to theoretical values. For KVSCT and DSCT, a noise increase was observed towards lower VMI levels. A patient-size dependent increase in the uncertainty of quantitative iodine concentrations is observed for all platforms. For a medium patient size the iodine concentration root-mean-square deviation at 20 mGy is 0.17 mg/ml (DLCT), 0.30 mg/ml (KVSCT) and 0.77mg/ml (DSCT). Noticeable performance differences are observed between investigated DECT systems. Iodine concentrations and VMI HUs are accurately determined across all DECT systems. KVSCT and DLCT deliver slightly more accurate iodine concentration values than DSCT for investigated scenarios. In DLCT, low-noise and high-image contrast at low VMI levels may help to increase diagnostic information in abdominal CT. • Current dual-energy CT platforms provide accurate, reliable quantitative information. • Dual-energy CT cross-platform evaluation revealed noticeable performance differences between different systems. • Dual-layer CT offers constant noise levels over the complete energy range. |
X Demographics
The data shown below were collected from the profiles of 4 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 2 | 50% |
| Unknown | 2 | 50% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 4 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 110 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 110 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 24 | 22% |
| Student > Ph. D. Student | 17 | 15% |
| Other | 12 | 11% |
| Student > Master | 10 | 9% |
| Student > Bachelor | 7 | 6% |
| Other | 18 | 16% |
| Unknown | 22 | 20% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 23 | 21% |
| Physics and Astronomy | 21 | 19% |
| Engineering | 10 | 9% |
| Nursing and Health Professions | 7 | 6% |
| Agricultural and Biological Sciences | 2 | 2% |
| Other | 9 | 8% |
| Unknown | 38 | 35% |
Attention Score in Context
This research output has an Altmetric Attention Score of 4. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 20 September 2018.
All research outputs
#7,927,439
of 23,885,338 outputs
Outputs from European Radiology
#1,221
of 4,416 outputs
Outputs of similar age
#157,354
of 443,221 outputs
Outputs of similar age from European Radiology
#30
of 72 outputs
Altmetric has tracked 23,885,338 research outputs across all sources so far. This one has received more attention than most of these and is in the 66th percentile.
So far Altmetric has tracked 4,416 research outputs from this source. They receive a mean Attention Score of 4.6. This one has gotten more attention than average, scoring higher than 72% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 443,221 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 64% of its contemporaries.
We're also able to compare this research output to 72 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 59% of its contemporaries.