Physical and cognitive task analysis in interventional radiology

Johnson, Sheena; Healey, Andrew; Evans, Jonathan; Murphy, Mike; Crawshaw, Martin; Gould, Debby

doi:10.1016/j.crad.2005.09.003

Cited by 40 publications

(16 citation statements)

References 4 publications

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“…Most of the literature focuses on preoperative situations (van der Heyden et al 2001) and rarely on intraoperative situations (Johnson et al 2006). Due to the lack of appropriate information, it is hard to predict which aspects of intraoperative navigation require special attention.…”

Section: Human-computer Interactionmentioning

confidence: 99%

Manipulation of mental models of anatomy in interventional radiology and its consequences for design of human–computer interaction

2012

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Interventional radiology procedures require extensive cognitive processing from the physician. A set of these cognitive functions are aimed to be replaced by technology in order to reduce the cognitive load. However, limited knowledge is available regarding mental processes in interventional radiology. This research focuses on identifying mental model-related processes, in particular during percutaneous procedures, useful to improve image guidance during interventions. Ethnographic studies and a prototype-based study were conducted in order to perform a task analysis and to identify working strategies and cognitive processes. Data were compared to theories from visual imagery. The results indicate a high level of complexity of mental model construction and manipulation, in particular when mentally comparing mental model knowledge with radiology images on screen (e.g., to steer a needle correctly). Regarding current interface support, most difficult is the interpretation and selection of oblique views. New interface principles are needed to bring cognitive demands within reasonable human range, and also accompanying cognitive work strategies should be developed.

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Section: Human-computer Interactionmentioning

confidence: 99%

Manipulation of mental models of anatomy in interventional radiology and its consequences for design of human–computer interaction

2012

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“…Task analyses are widely used tools in human factors and ergonomics to structure and analyze complex working situation. Cognitive task analysis of needle placements for biopsy, but also other main tasks of interventional radiologists have been done by Johnson and colleagues [7]. They analyzed the classical needle placement procedures without technical support.…”

Section: Second Design Loopmentioning

confidence: 99%

Visualization tool for improved accuracy in needle placement during percutaneous radio-frequency ablation of liver tumors

Stüdeli

Kalkofen

Risholm³

et al. 2008

Medical Imaging 2008: Visualization, Image-Guided Procedures, and Modeling

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The European research network "Augmented reality in Surgery" (ARIS*ER) developed a system that supports percutaneous radio frequency ablation of liver tumors. The system provides interventionists, during placement and insertion of the RFA needle, with information from pre-operative CT images and real-time tracking data. A visualization tool has been designed that aims to support (1) exploration of the abdomen, (2) planning of needle trajectory and (3) insertion of the needle in the most efficient way. This work describes a first evaluation of the system, where user performances and feedback of two visualization concepts of the tool -needle view and user view -are compared. After being introduced to the system, ten subjects performed three needle placements with both concepts. Task fulfillment rate, time for completion of task, special incidences, accuracy of needle placement recorded and analyzed. The results show ambiguous results with beneficial and less favorable effects on user performance and workload of both concepts. Effects depend on characteristics of intra-operative tasks as well as on task complexities depending on tumor location. The results give valuable input for the next design steps.

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“…This includes mentored training in patients within an interventional apprenticeship, a process that is unlikely to ever be entirely replaced by simulation [41]. Indeed, simulation is not a substitute for curriculum-based training, or for participating in the actual care of real patients -it should be used in support of both [34][35][36][37][38][39][40][41][42].…”

Section: What This Means For Ir Now and In The Futurementioning

confidence: 99%

“…Getting this right during simulator development, and identifying metrics, requires performance task analysis (TA). The TA is developed specifically to identify the physical and cognitive behaviours that constitute real-world performance, as well as the conditions under which the task is performed [39,40].…”

Section: Which Curriculum Training Objectives Would Represent Best Usmentioning

confidence: 99%

Using simulation for interventional radiology training

Gould

2010

BJR

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ABSTRACT. Debate on the existence of innate skills has all but evaporated in the light of evidence that it is only the hours spent in deliberate practice that correlate with even the most elite levels of expertise. A range of simple to advanced technologies stands to address some of the many challenges to effective training of 21st century, procedural medicine. Simulation could train and assess behaviours remotely from patients, in complete safety, reducing the risks of inexperienced trainees learning critical tasks in patients while contributing to certification and revalidation. Understanding the strengths and limitations of these devices, determining and improving their effectiveness and identifying their roles, as well as those of individuals and teams, represents a cornerstone of successful adoption into the interventional radiology curriculum. This requires a simulation strategy that includes standards for simulator documentation.

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Physical and cognitive task analysis in interventional radiology

Cited by 40 publications

References 4 publications

Manipulation of mental models of anatomy in interventional radiology and its consequences for design of human–computer interaction

Manipulation of mental models of anatomy in interventional radiology and its consequences for design of human–computer interaction

Visualization tool for improved accuracy in needle placement during percutaneous radio-frequency ablation of liver tumors

Using simulation for interventional radiology training

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