Educational Exhibit "Likes" at the 2013 RSNA Annual Meeting: A Detailed Analysis

SSA11-08

Educational Exhibit "Likes" at the 2013 RSNA Annual Meeting: A Detailed Analysis

Scientific Papers

Presented on November 30, 2014
Presented as part of SSA11: Informatics (Education and Research)

Paul Michael Bunch MD, Presenter: Nothing to Disclose

Jeremy Robert Wortman MD, Abstract Co-Author: Nothing to Disclose

Katherine P. Andriole PhD, Abstract Co-Author: Nothing to Disclose

The 2013 RSNA DPS offered educational exhibit (EE) viewers the opportunity to “like” an EE. We sought to evaluate any relationship between an EE’s popularity and its chance of winning an award or being selected for Radiographics. We also evaluated any relationship between an EE’s recognition and its subsequent popularity.

The number of likes each EE received was captured from DPS on Tuesday evening prior to Wednesday’s announcement of award selections, on Thursday evening prior to Friday’s announcement of Radiographics invitations, and on Friday evening upon closure of the exhibit halls. Data analysis was performed by means of oneway ANOVA.

At the 2013 RSNA meeting, there were 1856 EEs, which received 4391 likes (Mean 2.37, Min 0 [n=527], Max 55 [n=1]). Awards were given to 423 EEs (22.8%), which received a total of 1490 likes (33.9%, Mean 3.52, Min 0 [n=59], Max 55 [n=1]). Radiographics invitations were given to 190 EEs (10.2%), which received a total of 752 likes (17.1%, Mean 3.96, Min 0 [n=32], Max 55 [n=1]). EEs receiving awards had significantly more likes prior to announcement of award selection (Mean 1.9 vs 1.3, SD 2.7 vs 2.1) and at the end of the meeting (Mean 3.5 vs 2.0, SD 4.6 vs 2.9) than non-awarded EEs [p<0.001 for both]. EEs receiving Radiographics invitations had significantly more likes prior to announcement of Radiographics invitations (Mean 2.4 vs 1.3, SD 3.5 vs 2.1) and at the end of the meeting (Mean 4.0 vs 2.2, SD 5.6 vs 3.0) than non-invited EEs [p<0.001 for both]. EEs receiving at least 15 likes prior to announcement of awards had a 44.4% chance of being recognized compared to a 22.7% chance. EEs receiving at least 15 likes prior to announcement of Radiographics invitations had a 33.3% chance of receiving an invitation compared to a 10.0% chance. Receiving an award on Wednesday had a statistically significant association with the number of likes (Mean 1.7 vs 0.7, SD 2.4 vs 1.2) an EE subsequently received [p<0.001].

The DPS “like” feature at the 2013 RSNA meeting, similar to social media impact, allowed for substantial audience feedback on EEs, with over 4000 distinct entries made. Receiving an award or a Radiographics invitation was associated with a subsequent increase in EE popularity.