Combined task activation display as an effective method to teach introductory fMRI users

Ashwani Gore, Ranliang Hu, Dhruv Patel, Maria Braileanu, Daniel Hampton, Hena Joshi, Nikhar Kinger, Philip C Louden, John O'Keefe, Stanislav Poliashenko, Michael J Hoch
Clinical Imaging 2019 March 29, 55: 181-187

RATIONALE AND OBJECTIVES: Interpreting functional magnetic resonance imaging (fMRI) can be an overwhelming and challenging task for trainees, particularly when post processing, synthesizing and interpreting data from multiple language paradigms. Currently, there is no established best method for teaching fMRI interpretation to new trainees. The purpose of our study is to compare the use of combined task activation display (CTAD) and conventional display of fMRI language paradigms as an effective method to teach fMRI to the introductory learner.

MATERIALS AND METHODS: Following IRB approval, 43 unique cases (with 10 repeat cases to assess intra-reader variability) were identified based on the inclusion/exclusion criteria. Eight radiology trainees, without prior exposure to fMRI, were asked to determine language lateralization based on activation of Wernicke's area, Broca's area, and the pre-supplementary motor area. Prior to trainee interpretation, a 15-minute training session was conducted to describe the expected anatomic locations of the language centers. Trainees were asked to determine language dominance using either the CTAD or conventional methods. Following a 6-week washout period, the same eight trainees were asked to interpret the cases using the opposite interpretation approach.

RESULTS: Interpreting fMRI with the CTAD method significantly increased trainee accuracy (85.4% vs 70.9% p < 0.001) and trainee confidence (4.3 vs 3.6 p < 0.001), while decreasing time to interpretation (mean difference of 29 min), and intra-reader variability when compared to the conventional approach.

CONCLUSION: Combined task activation display is an effective method to teach fMRI to introductory learners.

Full Text Links

Find Full Text Links for this Article


You are not logged in. Sign Up or Log In to join the discussion.

Related Papers

Available on the App Store

Available on the Play Store
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"