![]() An example of a leg segment from whole-body 3D surface data processed using the limited leg visibility workflow variation is highlighted in Fig. To estimate the medial boundaries of each respective leg, the missing 3D surface data were then interpolated by applying the flat plane hole-filling algorithm within the Geomagic 2014 software. This included an extra step of data processing, in which the computed 3D surface data were separated in the median sagittal plane between the fused legs. In cases where the cropped segments showed fusing of the legs in the medial thigh area, the 3D surface data were submitted to the limited leg visibility workflow. In cases where the two resulting legs segments were completely separate, the 3D surface data were submitted to the complete leg visibility workflow. Thus, we were able to reproducibly crop the leg segments for volumetric analysis within the 3D surface data of the same subject. These heights were then used for each leg of both sets of whole-body 3D surface scans. The transverse planes were set at a specific height in millimeters over the point of origin as defined by the turntable surface. Leg segments were obtained for volumetric analysis by cropping the 3D surface data above and below transverse planes at the height of the infragluteal fold and the lateral malleolus, respectively. ANTHROPOMETRICS GRAPHICAL ANALYSIS WINDOWS 10The resulting raw data were transferred via USB flash drive to a commercial desktop computer running Microsoft Windows 10 for data processing. While taking advantage of the turntable rotation to circumferentially map all visible surface areas of the body, each set of whole-body 3D surface data was acquired in a single scanning procedure. At a scanning distance of about 1 m, the imaging operator performed a systematic scan sequence by moving the imaging focus from the feet toward the head. Subjects were requested to keep their eyes open, as preliminary tests showed that closed eyes increased the amount of swaying motion. The subjects were instructed to breathe freely for the duration of 3DSI, while trying to alter their body pose as little as possible. 3DSI was conducted with the subjects standing freely in an upright position with arms spread and the hands resting on the hips. To ensure high scan quality, the subjects were requested to remove all jewelry and to tie back long hair as well as to remove all clothing apart from tight fitting undergarments. Whole-body scans acquired using the described 3DSI routine may allow simultaneous assessment of other changes in body morphology after further validation. It could aid in objectively comparing medical treatment options of the leg in a clinical setting. The workflow examined in this study provides a precise method to digitally monitor leg volume regardless of leg morphology. The workflow variations for completely and partially visible leg surfaces yielded similarly low values. The mean relative differences between paired left and right leg volumes were 0.73 ± 0.62% and 0.82 ± 0.65%. A total of 82 subjects were included in this study. Workflow precision was assessed by calculating the relative percent differences between repeated leg volumes. Paired samples of bilateral leg volume were calculated from the 3D surface data, with workflow variations for complete and limited leg surface visibility. For each study participant, whole-body 3DSI was conducted twice successively in a single session with subject repositioning between scans. We thus aimed to describe and apply a novel workflow to collect bilateral leg volume measurements from whole-body 3D surface scans regardless of leg morphology and to assess workflow precision. A workflow capable of precisely estimating the missing data is therefore required. Certain types of morphology do not permit complete circumferential scan of the leg surface. One area of application is the digital quantification of leg volume. Whole-body three-dimensional surface imaging (3DSI) offers the ability to monitor morphologic changes in multiple areas without the need to individually scan every anatomical region of interest. Meine Inhalte subNavigationMarker subNavigationPointer.Mehr subNavigationMarker subNavigationPointer.■ Für Ärztinnen und Ärzte in Weiterbildung.Medizin für Apothekerinnen und Apotheker.Gebiete subNavigationMarker subNavigationPointer. ![]()
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