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Mendeley readers
Attention Score in Context
| Title |
Detection and characterization of very small cerebral aneurysms by using 2D and 3D helical CT angiography.
|
|---|---|
| Published in |
American Journal of Neuroradiology, August 2002
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| Pubmed ID | |
| Authors |
J Pablo Villablanca, Reza Jahan, Parizad Hooshi, Silvester Lim, Gary Duckwiler, Aman Patel, James Sayre, Neil Martin, John Frazee, John Bentson, Fernando Viñuela |
| Abstract |
Many cases of subarachnoid hemorrhage are due to rupture of small cerebral aneurysms. Our purpose was to evaluate the usefulness of helical CT angiography (CTA) in the detection and characterization of very small (<5 mm) intracranial aneurysms. One hundred eighty consecutive patients underwent CTA for suspected intracranial aneurysms. All aneurysms prospectively detected by CTA were confirmed by digital subtraction angiography (DSA) or at surgery. CT angiograms and digital subtraction angiograms were reviewed by two independent blinded radiologists who performed aneurysm detection, quantitation, and characterization using 2D multiplanar reformatted and 3D volume-rendering techniques. Fifty-one patients harboring 41 very small intracranial aneurysms were included in this series. Eighty-one percent (33 of 41 aneurysms) were </=4 mm in maximal diameter, and 37% (15 of 41 aneurysms) were </=3 mm in maximal diameter. Sensitivity of CTA for very small intracranial aneurysm detection ranged from 98% to 100% (95% confidence intervals, 0.871, 0.999, 0.914, and 1.0), compared with 95% for DSA. The specificity of CTA and DSA for very small intracranial aneurysms was 100% (26 of 26 aneurysms). Positive predictive value ranged from 98% to 100%. Negative predictive value ranged from 96% to 100%. Accuracy of CTA for detection of very small intracranial aneurysms was 99% and 100% (kappa = 0.969 - 1.0 +/- 0.1221). Forty-eight percent of aneurysms were detected in the presence of subarachnoid hemorrhage. The sensitivity of CTA for the detection of cerebral aneurysms </=5 mm is higher than that of DSA, with equal specificity and high interoperator reliability. High quality, noninvasive CTA aneurysm detection and characterization can be performed using routine clinical CT scanners and commercially available image processing workstations. |
Mendeley readers
The data shown below were compiled from readership statistics for 79 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Germany | 2 | 3% |
| United States | 2 | 3% |
| Canada | 2 | 3% |
| Australia | 1 | 1% |
| United Kingdom | 1 | 1% |
| Japan | 1 | 1% |
| Spain | 1 | 1% |
| Unknown | 69 | 87% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 14 | 18% |
| Other | 10 | 13% |
| Student > Ph. D. Student | 10 | 13% |
| Student > Postgraduate | 9 | 11% |
| Professor > Associate Professor | 8 | 10% |
| Other | 20 | 25% |
| Unknown | 8 | 10% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 48 | 61% |
| Neuroscience | 7 | 9% |
| Engineering | 4 | 5% |
| Agricultural and Biological Sciences | 4 | 5% |
| Computer Science | 2 | 3% |
| Other | 6 | 8% |
| Unknown | 8 | 10% |
Attention Score in Context
This research output has an Altmetric Attention Score of 5. 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 09 June 2019.
All research outputs
#6,755,994
of 25,377,790 outputs
Outputs from American Journal of Neuroradiology
#1,635
of 5,256 outputs
Outputs of similar age
#14,452
of 48,163 outputs
Outputs of similar age from American Journal of Neuroradiology
#2
of 9 outputs
Altmetric has tracked 25,377,790 research outputs across all sources so far. This one has received more attention than most of these and is in the 73rd percentile.
So far Altmetric has tracked 5,256 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 6.7. This one has gotten more attention than average, scoring higher than 68% 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 48,163 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 69% of its contemporaries.
We're also able to compare this research output to 9 others from the same source and published within six weeks on either side of this one. This one has scored higher than 7 of them.