Rationale and Objectives
Viewers of electronic education exhibits at the 2013 and 2014 Radiological Society of North America meetings had the opportunity to “like” exhibits, as one might “like” a Facebook or an Instagram post. The purposes of this study were (1) to evaluate for a relationship between exhibit popularity and receiving an award or RadioGraphics invitation, (2) to evaluate for a relationship between exhibit recognition and subsequent popularity, and (3) to quantify and compare the electronic education exhibit likes at the 2013 and the 2014 meetings.
Materials and Methods
Exhibit likes were recorded at the midpoints and ends of both meetings. Data analyses were performed by means of one-way analysis of variance and chi-square tests.
Results
There were similar numbers of electronic education exhibits at the 2013 (1856) and 2014 (1793) meetings with no significant difference between meeting years in the number of exhibits chosen for awards (423 vs. 404, P = 0.88) or for RadioGraphics solicitation (190 vs. 169, P = 0.46). In both meeting years, there were statistically significant associations between initial and overall exhibit popularity and exhibit recognition, as well as between exhibit recognition and subsequent popularity. A 152% increase in total likes recorded was observed at the 2014 meeting as compared to the 2013 meeting (11074 vs. 4391, P < 0.0001).
Conclusions
Popular exhibits were significantly more likely to receive awards and RadioGraphics invitations. Receiving an award or RadioGraphics invitation was associated with subsequent increased exhibit popularity. Significantly more likes were recorded at the 2014 Radiological Society of North America meeting than at the 2013 meeting.
Introduction
With the rapid growth and widespread adoption of social media, there has been increasing interest in social media’s impact on and interaction with the field of medicine and the subspecialty of radiology . More specifically, previous researchers have investigated and analyzed the use of social media at major medical society meetings across a number of specialties, with most work to date focused on third-party social media sites such as Facebook ( facebook.com , Menlo Park, CA) and Twitter ( twitter.com , San Francisco, CA) .
The Radiological Society of North America (RSNA) introduced a form of medical societal social media at its 2013 annual meeting by offering Digital Presentation System (DPS) electronic education exhibit (EEE) viewers the opportunity to “like” an exhibit, just as one might “like” a Facebook or an Instagram post. This feature was again made available to EEE viewers at the 2014 RSNA meeting. The number of likes received by each exhibit was visible to all other meeting attendees in real time, and for each like recorded, the lead exhibit author received an automated e-mail notification containing the viewer’s name. All in-person and virtual meeting attendees had the option of liking an unlimited number of EEEs; however, each attendee could like a specific exhibit only once.
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Methods
Data Capture
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Statistical Analysis
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Results
EEEs and “Likes”
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TABLE 1
Electronic Education Exhibits per Category and Likes Recorded per Category over the Course of the 2013 and the 2014 Radiological Society of North America Meetings
RSNA 2013 RSNA 2014 Total Exhibits Midpoint Likes End Likes Total Exhibits Midpoint Likes End Likes Breast 116 191 341 135 896 1,435 Cardiac 83 106 152 70 239 493 Chest 145 278 432 130 595 1,021 Emergency Radiology 124 224 348 103 414 696 Gastrointestinal 271 377 606 220 831 1,462 Genitourinary 199 177 292 95 221 409 Health Services 44 56 91 35 75 136 Informatics 34 35 53 30 113 211 Molecular Imaging N/A N/A N/A 12 41 65 Musculoskeletal 202 425 636 236 1,064 1,624 Multi-system N/A N/A N/A 64 190 295 Neuroradiology 305 402 747 276 990 1,590 Nuclear Medicine 65 94 151 49 58 115 Obstetrics N/A N/A N/A 89 267 418 Pediatrics 115 179 258 111 300 454 Physics 37 30 64 25 87 157 Radiation Oncology 8 6 9 5 23 29 Vascular/Interventional 108 102 211 108 283 464 Total 1,856 2,682 4,391 1,793 6,687 11,074
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Education Exhibit Awards
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TABLE 2
Electronic Education Exhibit Awards per Category at the 2013 and the 2014 Radiological Society of North America Meetings
RSNA 2013 RSNA 2014 Total Awards % Awarded MCL CL CoM Total Awards % Awarded MCL CL CoM Breast 30 25.9 2 5 23 29 21.5 2 7 20 Cardiac 19 22.9 0 4 15 15 21.4 0 4 11 Chest 34 23.4 3 6 25 29 22.3 2 6 21 Emergency Radiology 29 23.4 2 4 23 25 24.3 3 5 17 Gastrointestinal 71 26.2 4 12 55 51 23.2 4 6 41 Genitourinary 38 19.1 1 6 31 19 20.0 1 3 15 Health Services 11 25.0 1 0 10 7 20.0 0 1 6 Informatics 7 20.6 0 3 4 5 16.7 1 1 3 Molecular Imaging N/A N/A N/A N/A N/A 0 0.0 0 0 0 Musculoskeletal 49 24.3 4 9 36 54 22.9 2 9 43 Multi-system N/A N/A N/A N/A N/A 13 20.3 1 1 11 Neuroradiology 68 22.3 4 13 51 65 23.6 5 11 49 Nuclear Medicine 15 23.1 0 2 13 15 30.6 0 3 12 Obstetrics N/A N/A N/A N/A N/A 23 25.8 2 3 18 Pediatrics 24 20.9 1 5 18 25 22.5 3 5 17 Physics 5 13.5 1 0 4 6 24.0 0 3 3 Radiation Oncology 1 12.5 0 0 1 1 20.0 0 0 1 Vascular/Interventional 22 20.4 0 3 19 22 20.4 2 5 15 Total 423 22.8 23 72 328 404 22.5 28 73 303
CL, cum laude; CoM, certificate of merit; MCL, magna cum laude.
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RadioGraphics Solicitation
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TABLE 3
RadioGraphics Invitations by Category at the 2013 and the 2014 Radiological Society of North America Meetings
RSNA 2013 RSNA 2014 Total Invitations % Invited Total Invitations % Invited Breast 15 12.9 11 8.1 Cardiac 2 2.4 7 10.0 Chest 15 10.3 11 8.5 Emergency Radiology 23 18.5 14 13.6 Gastrointestinal 28 10.3 16 7.3 Genitourinary 26 13.1 13 13.7 Health Services 6 13.6 3 8.6 Informatics 0 0 5 16.7 Molecular Imaging N/A N/A 1 8.3 Musculoskeletal 16 7.9 13 5.5 Multi-system N/A N/A 9 14.1 Neuroradiology 14 4.6 20 7.2 Nuclear Medicine 11 16.9 11 22.4 Obstetrics N/A N/A 13 14.6 Pediatrics 16 13.9 9 8.1 Physics 4 10.8 7 28.0 Radiation Oncology 2 25.0 1 20.0 Vascular/Interventional 12 11.1 5 4.6 Total 190 10.2 169 9.4
TABLE 4
Likes per Exhibit for the 2013 RSNA Electronic Education Exhibits Receiving an Award Versus not Receiving an Award and Exhibits Receiving a RadioGraphics Invitation Versus not Receiving an Invitation
First Half (Pre Recognition) Second Half (Post Recognition) Total Mean SD 95% CI_P_ Mean SD 95% CI_P_ Mean SD 95% CI_P_ Awarded 1.9 2.7 1.7, 2.1 <0.0001 1.7 2.4 1.5, 1.8 <0.0001 3.5 4.6 3.2, 3.8 <0.0001 Not awarded 1.3 2.1 1.2, 1.4 0.7 1.2 0.6, 0.8 2.0 2.9 1.9, 2.2 Invited 2.4 3.5 2.1, 2.8 <0.0001 1.5 2.6 1.2, 1.9 <0.0001 4.0 5.6 3.5, 4.4 <0.0001 Not invited 1.3 2.1 1.2, 1.4 0.9 1.5 0.8, 0.9 2.2 3.0 2.0, 2.3
CI, confidence interval; SD, standard deviation.
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TABLE 5
Likes per Exhibit for the 2014 RSNA Electronic Education Exhibits Receiving an Award Versus Not Receiving an Award and Exhibits Receiving a RadioGraphics Invitation Versus not Receiving an Invitation
First Half (Pre Recognition) Second Half (Post Recognition) Total Mean SD 95% CI_P_ Mean SD 95% CI_P_ Mean SD 95% CI_P_ Awarded 4.4 6.1 3.8, 5.0 0.004 4.2 4.3 3.9, 4.4 <0.0001 8.5 9.6 7.8, 9.3 <0.0001 Not awarded 3.5 4.8 3.3, 3.8 1.9 2.3 1.8, 2.1 5.5 6.5 5.1, 5.9 Invited 4.6 4.9 3.8, 5.3 0.027 4.5 4.2 3.8, 5.1 <0.0001 9.0 8.3 7.8, 10.3 <0.0001 Not invited 3.6 5.1 3.4, 3.9 2.2 2.8 2.1, 2.4 5.9 7.3 5.5, 6.2
CI, confidence interval; SD, standard deviation.
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Comparing the 2013 and the 2014 RSNA Meetings
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Discussion
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