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Perfusion Parameters in Dynamic Contrast-enhanced MRI and Apparent Diffusion Coefficient Value in Diffusion-weighted MRI:

Overview of attention for article published in Academic Radiology, April 2016
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Title
Perfusion Parameters in Dynamic Contrast-enhanced MRI and Apparent Diffusion Coefficient Value in Diffusion-weighted MRI:
Published in
Academic Radiology, April 2016
DOI 10.1016/j.acra.2015.12.011
Pubmed ID
Authors

Hyun Sil Lee, Sung Hun Kim, Bong Joo Kang, Ji Eun Baek, Byung Joo Song

Abstract

To evaluate the association of prognostic factors and subtypes of breast cancer with perfusion parameters in dynamic contrast-enhanced magnetic resonance imaging and apparent diffusion coefficient (ADC) values in diffusion-weighted magnetic resonance imaging. Quantitative perfusion parameters (constant of transfer from plasma to interstitium, constant of transfer from the interstitium to the plasma, extravascular/extracellular volume per unit of volume of tissue [ve], and initial area under the concentration curve [iAUC]) and ADC values in the entire tumor volume of 52 invasive ductal carcinomas were obtained using histogram analysis. Four measures (25th percentile, mean, median, 75th percentile) were calculated for each parameter and the ADC value. Associations of perfusion parameters and ADC values with prognostic factors and tumor subtypes were analyzed. Among perfusion parameters, iAUCmean and iAUCmedian were greater in tumors larger than 2 cm (8.23 ± 2.33, 8.64 ± 2.67 × 10(4)) than in those smaller than 2 cm (6.99 ± 1.92, 7.04 ± 2.15 × 10(4); P = 0.046, 0.023). Ve median was higher in tumors with progesterone receptor (PR) positivity (0.54 ± 0.18) than in those with PR negativity (0.44 ± 0.1, P = 0.041). There were higher ADCmean and ADCmedian in tumors with human epidermal growth factor receptor 2 (HER2) positivity (1.306 and 1.278 × 10(-3 )mm(2)/s) than in those with HER2 negativity (1.078 and 1.053 × 10(-3 )mm(2)/s; P = 0.012 and 0.020). Higher ADCmean and ADCmedian were observed in HER2-enriched type (1.404 and 1.378 × 10(-3 )mm(2)/s) than in luminal type (1.096 and 1.073 × 10(-3 )mm(2)/s; P = 0.030 and 0.045). Among perfusion parameters, iAUC was associated with tumor size and ve median was associated with PR positivity. Mean and median ADC values showed positive correlation with HER2-positive and HER2-enriched tumors.

Twitter Demographics

The data shown below were collected from the profiles of 2 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 14 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 14 100%

Demographic breakdown

Readers by professional status Count As %
Other 4 29%
Researcher 3 21%
Student > Ph. D. Student 2 14%
Student > Bachelor 1 7%
Professor > Associate Professor 1 7%
Other 1 7%
Unknown 2 14%
Readers by discipline Count As %
Medicine and Dentistry 8 57%
Neuroscience 1 7%
Engineering 1 7%
Unknown 4 29%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. 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 08 February 2016.
All research outputs
#7,831,534
of 12,481,104 outputs
Outputs from Academic Radiology
#803
of 1,195 outputs
Outputs of similar age
#172,692
of 332,948 outputs
Outputs of similar age from Academic Radiology
#31
of 57 outputs
Altmetric has tracked 12,481,104 research outputs across all sources so far. This one is in the 23rd percentile – i.e., 23% of other outputs scored the same or lower than it.
So far Altmetric has tracked 1,195 research outputs from this source. They receive a mean Attention Score of 4.3. This one is in the 23rd percentile – i.e., 23% of its peers scored the same or lower than it.
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 332,948 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 37th percentile – i.e., 37% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 57 others from the same source and published within six weeks on either side of this one. This one is in the 33rd percentile – i.e., 33% of its contemporaries scored the same or lower than it.