MOESM1 of Semiautomatic segmentation of the kidney in magnetic resonance images using unimodal thresholding

Additional file 1. unimodcode.zip: a zipped folder containing the following files: unimodscript.py: the central script for the unimodal thresholding approach, l03threshSTD.py: the monomodal thresholding algorithm function, l02shrink.py: a function to remove most of the whitespace from a masked volume, detect_peaks.py: the peak detection function by Marcos Duarte, also available at https://github.com/demotu/BMC/blob/master/functions/detect_peaks.py , example.nii.gz: an anonymized abdominal MRI in NIfTI format, example_left_kidney_preseg.nii.gz: a manual pre-segmentation of the left kidney of the example MRI, done with the Multi-image Analysis GUI (MANGO), available at http://ric.uthscsa.edu/mango/ , example_right_kidney_preseg.nii.gz: a manual pre-segmentation of the right kidney of the example MRI, done with the Multi-image Analysis GUI (MANGO), available at http://ric.uthscsa.edu/mango/ , LICENSE.txt: the MIT license text, readme.txt: description of the included files, list of dependencies, instructions for installation and use

Microbial contamination of the surface of the tablet and of the outside of the used plastic bags.

<p>Logarithmic presentation of the mean microbial contamination (colony forming units, CFUs) of the surface of the tablet computer before the initial and after the final use of each day and of the outside of the plastic bags of each day. Mean values ± standard deviations are shown. Samples were taken from three defined regions of interest (ROIs; ROI A  =  central touchscreen, ROI B  =  home button and its adjacent area, ROI C  =  upper central backside).</p

Successive steps of the procedure.

<p>Successive steps of the procedure.</p

Microbial contamination (colony forming units = CFUs) of the surface of the tablet computer was determined twice every day, before initial and after final usage (100 users in 11 days).

<p>Samples were taken from three defined regions of interest (ROIs; ROI A  =  central touchscreen, ROI B  =  home button and its adjacent area, ROI C  =  upper central backside).</p><p>Microbial contamination (colony forming units  =  CFUs) of the surface of the tablet computer was determined twice every day, before initial and after final usage (100 users in 11 days).</p

Classification, prevalence and medical relevance of the bacteria found on the outside of used plastic bags. Prevalence [%] is shown in brackets.

<p>(1) unless inoculated into wounds or into the blood stream via catheters.</p><p>Classification, prevalence and medical relevance of the bacteria found on the outside of used plastic bags. Prevalence [%] is shown in brackets.</p

Experience of the participants with a personal computer (PC) and touchscreen operated devices (n = 100).

<p>Experience of the participants with a personal computer (PC) and touchscreen operated devices (n  =  100).</p

Illustration of the wrapping of the tablet and the sample collection.

<p>Upper row illustrates wrapping of the tablet computer using a sterile drape cloth and sterile gloves (Step 1). Lower row illustrates sample collection from an unused plastic bag, from the surface of the tablet and from the outside of a used plastic bag using Rodac plates (Step 1 and 4). The Rodac plates are positioned on the three defined regions of interest (ROIs; ROI A  =  central touchscreen, ROI B  =  home button and its adjacent area, ROI C  =  upper central backside).</p

Convenience for the operators and functionality of the touchscreen using a plastic bag-covered tablet computer dependent on the experience of participants with touchscreen operated devices (n = 100).

<p>Convenience for the operators and functionality of the touchscreen using a plastic bag-covered tablet computer dependent on the experience of participants with touchscreen operated devices (n  =  100).</p

Microbial contamination (colony forming units, CFUs) of the outside of the plastic bags (ROI A/B/C/total) and of the surface of the tablet (ROI A/B/C/total) after a one-day usage.

<p>Microbial contamination of the surface of the tablet was significantly lower than the contamination of the outside of the used plastic bags (ROI A, B and C; ROI A + ROI B + ROI C; p < 0.001). ROI  =  Region of interest.</p><p>Microbial contamination (colony forming units, CFUs) of the outside of the plastic bags (ROI A/B/C/total) and of the surface of the tablet (ROI A/B/C/total) after a one-day usage.</p

Interreader reliability.

<p>The interreader reliability was evaluated for ²³Na measurements of 2 randomly selected probands which were assessed by four readers independently. Whole lower leg = grey-values > 2 x background noise. Skin = region where leg is positioned on the cylindrical phantom holders surface (one pixel-thickness = 3 mm). SD = standard deviation.</p><p>Interreader reliability.</p