Mobile Workflow in Computed Tomography of the Chest
Wetzl M, Weller M, Heiß R, Schrüfer E, Wüst W, Thierfelder C, Lerch D, Amarteifio P, Uder M, May M, Cavallaro AJ (2018)
Publication Type: Journal article
Publication year: 2018
Journal
Book Volume: 43
Journal Issue: 1
DOI: 10.1007/s10916-018-1131-2
Abstract
A CT system with a tablet as mobile user interface and a wireless remote control for positioning and radiation release has recently been presented. Our aim was to evaluate the effects of a mobile CT examination workflow on the radiographers' performance compared to conventional examinations. A prototype of a radiation protection cabin was installed besides the gantry of a CT system. The CT system was equipped with a simplified user interface on a portable tablet and a mobile remote control. 98 patients with an indication for CT of the chest were randomly assigned to examination using the mobile devices (study group, n = 47) or using the conventional stationary workflow on the console (reference group, n = 51). Three ceiling mounted fisheye cameras were used for motion tracking of the radiographers, two in the examination room and one in the control room. Relative density of detection heat-maps and area counts were assessed using a dedicated software tool to quantify radiographers' movements. Duration of each task of the examination was manually recorded using a stopwatch. In the reference group 25% of the area counts were located inside of the examination room, while it was 48% in the study group. The time spent in the same room with the patient increased from 3:06 min (29%) to 6:01 min (57%) using the mobile workflow (p < 0.05), thereof 0:59 min (9%) were spent in moderate separation with maintained voice and visual contact in the radiation protection cabin. Heat-maps showed an increase of the radiographer's working area, indicating a higher freedom of movement. Total duration of the examination was slightly less in the study group without statistical significance (median time: study 10:36, reference 10:50 min; p = 0.29). A mobile CT examination transfers the radiographers' interaction with the scanner from the control room into the examination room. There, radiographers' freedom of movement is higher, without any tradeoffs regarding the examination duration.
Authors with CRIS profile
Matthias Wetzl
Institute of Radiology
Rafael Heiß
Professur für Innere Medizin (Hochdruckforschung)
Eleni Schrüfer
Medizinische Fakultät
Wolfgang Wüst
Medizinische Fakultät
Michael Uder
Lehrstuhl für Diagnostische Radiologie
Matthias May
Institute of Radiology
Alexander Josef Cavallaro
Institute of Radiology
Involved external institutions
Germany (DE)How to cite
APA:
Wetzl, M., Weller, M., Heiß, R., Schrüfer, E., Wüst, W., Thierfelder, C.,... Cavallaro, A.J. (2018). Mobile Workflow in Computed Tomography of the Chest. Journal of Medical Systems, 43(1). https://dx.doi.org/10.1007/s10916-018-1131-2
MLA:
Wetzl, Matthias, et al. "Mobile Workflow in Computed Tomography of the Chest." Journal of Medical Systems 43.1 (2018).
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