• H J Langen, C Kohlhauser-Vollmuth, S Muras, M Stenzel, and M Beer.
• Radiologische Abteilung, Missionsärztliche Klinik, Würzburg. hj.langen@missioklinik.de
• Rofo. 2009 Mar 1; 181 (3): 237-41.

PurposeA computer program was created to train technologists to perform chest X-rays in crying infants at maximum inspiration.Materials And MethodsVideos of 4 children were used. Using a computer program, the moment of deepest inspiration was determined in the video in the single frame view. During the normal running video, 14 technologists (3 with significant experience, 3 with little experience and 8 with very little experience in pediatric radiography) simulated a chest radiograph by pushing a button. The computer program stopped the video and the period of time to the optimal moment for a chest x-ray was calculated. Every technologist simulated 10 chest X-rays in each of the 4 video clips. The technologists then trained themselves to perform chest X-rays at optimal inspiration like playing a computer game. After training, the test was repeated. Changes were evaluated by t-test for unpaired samples (level of significance p < 0.05).ResultsAlthough the differences improved in all children, minimal deviation from the optimal moment for taking an X-ray at inspiration occurred in the periodically crying child (0.21 sec before and 0.13 sec after training). In a non-periodically crying infant, the largest differences were shown. The values improved significantly from 0.29 sec to 0.22 sec. The group with substantial experience in pediatric radiology improved significantly from 0.22 sec to 0.15 sec. The group with very little experience in pediatric radiology showed worse results (improvement from 0.29 sec to 0.21 sec).ConclusionThe ability of a technologist to take a chest X-ray at optimal inspiration in a crying child is improved by the tested computer program.

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