April 2014

Rising Radiology Star

Sat, 19 April 14 17:00

UCD Medicine Student is a Rising Star at ESR 2014

Congratulations to UCD Graduate Entry Medicine student and UCD Radiography graduate, Brendan Kelly who was shortlisted recently as runner up in the European Congress of Radiology Rising Star 2014 competition.  Held in Vienna between 6th – 10th March 2014, the ECR2014 attracted over 23,400 delegates from over 130 countries and is Europe’s largest medical conference.

Brendan was runner up in the Rising Star competition which saw student presentations from across the five days of the meeting compete in a President’s Selection on the final day.  Reflecting his own personal interest in the interaction between radiographers and radiologists, Brendan presented details of project which he undertook as part of the UCD Student Summer Research 2013 competition.

The project investigated the development of radiological image interpretation skill through medical training by measuring both diagnostic accuracy and eye movements during visual search.

A selection of clinicians of varying experience were shown 30 chest radiographs, 14 of which had a pneumothorax and were asked to give their level of confidence as to whether a pneumothorax was present.  The test group contained five consultant radiologists (deemed the reference expert group), four Radiology Registrars, five Senior House Officers and six Interns which between them formed four clinician groups.

Receiver Operating Characteristic (ROC) Analysis was carried out on diagnostic decisions and eye movements were recorded by a Tobii TX300 eye tracker with four eye-tracking metrics being analysed.  Variables were compared to identify any differences between groups.

The average area under the ROC Curve for the groups increased with experience (p=0.009). Statistically significant difference in diagnostic accuracy was found between Consultants and Registrars (p=0.046). All four eye-tracking metrics reduced with experience, this was statistically significant for Registrars compared with SHOs. The total reading time reduced with experience; significantly for Registrars compared to SHOs (p=0.046) and between SHOs and Interns (0.025).

Reader performance was found to increase with experience. The level of experience at which there was a statistically significant difference was higher for diagnostic accuracy than for eye-tracking metrics. This data would suggest that specific training is needed to improve radiology expertise and that the development of an “expert” search pattern predates the development of “expert” levels of diagnostic accuracy.

Arising from this research, the School is developing a radiology online teaching tool to introduce medical and radiography students to medical images at the beginning of their studies alongside learning anatomy with the potential to improve diagnostic accuracy and search pattern.

This education development project is being undertaken by a group of UCD staff comprising anatomists, educational technologists, radiologists and radiographers that includes Dr Jason Last, Dr Shay Giles, Mr Adam Tattersall, Dr Eoin Kavanagh, Dr Louise Rainford and Dr Rachel Toomey.

Reference

The Academic Student Partnership and the Development of Search Pattern Diagnostic Accuracy in Radiology.  Kelly B, Tattersall A, Ennis R, Ryan B, Creane D,  Last J, Giles S, Kavanagh E, Rainford L, Toomey R.  Runner Up, European Society of Radiology Annual Rising Star Competition, Vienna Austria, 2014