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X Demographics
Mendeley readers
Attention Score in Context
| Title |
Fixed volume particle trace emission for the analysis of left atrial blood flow using 4D Flow MRI
|
|---|---|
| Published in |
Magnetic Resonance Imaging (0730725X), December 2017
|
| DOI | 10.1016/j.mri.2017.12.008 |
| Pubmed ID | |
| Authors |
Stephen Gaeta, Petter Dyverfeldt, Jonatan Eriksson, Carl-Johan Carlhäll, Tino Ebbers, Ann F. Bolger |
| Abstract |
4D Flow MRI has been used to quantify normal and deranged left ventricular blood flow characteristics on the basis of functionally distinct flow components. However, the application of this technique to the atria is challenging due to the presence of continuous inflow. This continuous inflow necessitates plane-based emission of particle traces from the inlet veins, leading to particles that represents different amounts of blood, and related quantification errors. The purpose of this study was to develop a novel fixed-volume approach for particle tracing and employ this method to develop quantitative analysis of 4D blood flow characteristics in the left atrium. 4D Flow MRI data were acquired during free-breathing using a navigator-gated gradient-echo sequence in three volunteers at 1.5T. Fixed-volume particle traces emitted from the pulmonary veins were used to visualize left atrial blood flow and to quantitatively separate the flow into two functionally distinct flow components: Direct flow=particle traces that enter and leave the atrium in one heartbeat, Retained flow=particle traces that enter the atrium and remains there for one cardiac cycle. Flow visualization based on fixed-volume traces revealed that, beginning in early ventricular systole, flow enters the atrium and engages with residual blood volume to form a vortex. In early diastole during early ventricular filling, the organized vortical flow is extinguished, followed by formation of a second transient atrial vortex. Finally, in late diastole during atrial contraction, a second acceleration of blood into the ventricle is seen. The direct and retained left atrial flow components were between 44 and 57% and 43-56% of the stroke volume, respectively. In conclusion, fixed-volume particle tracing permits separation of left atrial blood flow into different components based on the transit of blood through the atrium. |
X Demographics
The data shown below were collected from the profiles of 821 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 | 124 | 15% |
| Spain | 66 | 8% |
| Mexico | 65 | 8% |
| United Kingdom | 51 | 6% |
| Ecuador | 21 | 3% |
| Argentina | 17 | 2% |
| Colombia | 14 | 2% |
| Chile | 12 | 1% |
| Australia | 11 | 1% |
| Other | 109 | 13% |
| Unknown | 331 | 40% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 633 | 77% |
| Practitioners (doctors, other healthcare professionals) | 99 | 12% |
| Scientists | 76 | 9% |
| Science communicators (journalists, bloggers, editors) | 11 | 1% |
| Unknown | 2 | <1% |
Mendeley readers
The data shown below were compiled from readership statistics for 33 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 33 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 6 | 18% |
| Researcher | 6 | 18% |
| Student > Bachelor | 3 | 9% |
| Student > Postgraduate | 2 | 6% |
| Student > Master | 2 | 6% |
| Other | 3 | 9% |
| Unknown | 11 | 33% |
| Readers by discipline | Count | As % |
|---|---|---|
| Engineering | 10 | 30% |
| Sports and Recreations | 2 | 6% |
| Medicine and Dentistry | 2 | 6% |
| Mathematics | 1 | 3% |
| Computer Science | 1 | 3% |
| Other | 3 | 9% |
| Unknown | 14 | 42% |
Attention Score in Context
This research output has an Altmetric Attention Score of 585. 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 19 June 2023.
All research outputs
#40,506
of 25,746,891 outputs
Outputs from Magnetic Resonance Imaging (0730725X)
#1
of 1,964 outputs
Outputs of similar age
#842
of 448,210 outputs
Outputs of similar age from Magnetic Resonance Imaging (0730725X)
#1
of 21 outputs
Altmetric has tracked 25,746,891 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 99th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 1,964 research outputs from this source. They receive a mean Attention Score of 3.7. This one has done particularly well, scoring higher than 99% 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 448,210 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 99% of its contemporaries.
We're also able to compare this research output to 21 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 95% of its contemporaries.