Analysis of the treatment plan evaluation process in radiotherapy through eye tracking.

Détails

ID Serval
serval:BIB_841A6F502AE7
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Analysis of the treatment plan evaluation process in radiotherapy through eye tracking.
Périodique
Zeitschrift fur medizinische Physik
Auteur(s)
Kyroudi A., Petersson K., Ozsahin M., Bourhis J., Bochud F., Moeckli R.
ISSN
1876-4436 (Electronic)
ISSN-L
0939-3889
Statut éditorial
Publié
Date de publication
12/2018
Peer-reviewed
Oui
Volume
28
Numéro
4
Pages
318-324
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: ppublish
Résumé
Treatment plan evaluation is a clinical decision-making problem that involves visual search and analysis in a contextually rich environment, including delineated structures and isodose lines superposed on CT data. It is a two-step process that includes visual analysis and clinical reasoning. In this work, we used eye tracking methods to gain more knowledge about the treatment plan evaluation process in radiation therapy.
Dose distributions on a single transverse slice of ten prostate cancer treatment plans were presented to eight decision makers. Their eye movements and fixations were recorded with an EyeLink1000 remote eye-tracker. Total evaluation time, dwell time, number and duration of fixations on pre-segmented areas of interest were measured.
The main structures receiving more and longer fixations (PTV, rectum, bladder) correspond to the main trade-offs evaluated in a typical prostate plan. Radiation oncologists made more fixations on the main structures compared to the medical physicists. Radiation oncologists fixated longer on the rectum when visited for the first time, while medical physicists fixated longer on the bladder.
Our results quantify differences in the visual evaluation patterns between radiation oncologists and medical physicists, which indicate differences in their decision making strategies.
Mots-clé
Decision Making, Eye Movements, Humans, Male, Physicians/statistics & numerical data, Prostatic Neoplasms/radiotherapy, Radiotherapy/methods, Radiotherapy/standards, Tomography, X-Ray Computed, Decision making, Eye tracking, Plan quality, Prostate
Pubmed
Web of science
Création de la notice
13/01/2018 10:48
Dernière modification de la notice
20/08/2019 14:43
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