Development of workflow task analysis during cerebral diagnostic angiographies: Time-based comparison of junior and senior tasks

Jean-Christophe Gentric; Brivael Trelhu; Pierre Jannin; Laurent Riffaud; Jean-Christophe Ferré; Jean-Yves Gauvrit

Development of workflow task analysis during cerebral diagnostic angiographies: Time-based comparison of junior and senior tasks

Jean-Christophe Gentric ^{1, 2, *} Brivael Trelhu ² Pierre Jannin ² Laurent Riffaud ^{2, 3} Jean-Christophe Ferré ^{2, 4} Jean-Yves Gauvrit ^{2, 4, *}

* Corresponding author

1 Service de radiologie [Brest]

2 VisAGeS - Vision, Action et Gestion d'informations en Santé

INSERM - Institut National de la Santé et de la Recherche Médicale : U746, Inria Rennes – Bretagne Atlantique , IRISA-D5 - SIGNAUX ET IMAGES NUMÉRIQUES, ROBOTIQUE

3 Service de neurochirurgie [Rennes]

4 Service de radiologie et imagerie médicale [Rennes]

Abstract : OBJECTIVE: Assessing neuroradiologists' skills in the operating room (OR) is difficult and often subjective. This study used a workflow time-based task analysis approach while performing cerebral angiography. METHODS: Eight angiographies performed by a senior neuroradiologist and eight performed by a junior neuroradiologist were compared. Dedicated software with specific terminology was used to record the tasks. Procedures were subdivided into phases, each comprising multiple tasks. Each task was defined as a triplet, associating an action, an instrument and an anatomical structure. The duration of each task was the metric. Total duration of the procedure, task duration and the number of times a task was repeated were identified. The focus was on tasks using fluoroscopy and for moving the X-ray table/tube. RESULTS: The total duration of tasks to complete the entire procedure was longer for the junior operators than for the seniors (P=0.012). The mean duration per task during the navigation phase was 86s for the juniors and 43s for the seniors (P=0.002). The total and mean durations of tasks involving the use of fluoroscopy were also longer for the juniors (P=0.002 and P=0.033, respectively). For tasks involving the table/tube, the total and mean durations were again longer for the juniors (P=0.019 and P=0.082, respectively). CONCLUSION: This approach allows reliable skill assessment in the radiology OR and comparison of junior and senior competencies during cerebral diagnostic angiography. This new tool can improve the quality and safety of procedures, and facilitate the learning process for neuroradiologists.

Keywords : Surgical workflow Systems analysis Educational measurement Professional competence Surgical process models

Document type :

Journal articles

Domain :

Life Sciences [q-bio] / Neurons and Cognition [q-bio.NC]

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https://www.hal.inserm.fr/inserm-00845190
Contributor : Jean-Yves Gauvrit <>
Submitted on : Friday, December 18, 2015 - 2:59:13 PM
Last modification on : Monday, March 4, 2019 - 2:07:51 PM
Long-term archiving on : Saturday, April 29, 2017 - 9:58:07 PM

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Development of workflow task analysis during cerebral diagnostic angiographies: Time-based comparison of junior and senior tasks

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