A novel method to investigate the influence of X-ray table mattresses on pressure ulcer development

Congress:

ECR 2020

Poster Number:

C-05216

Type:

Scientific Exhibit

Keywords:

Performed at one institution, Experimental, Not applicable, Tissue characterisation, Developmental disease, Biological effects, Laboratory tests, Equipment, Computer Applications-3D, Digital radiography, CT, Conventional radiography, Soft tissues / Skin, Radiographers, Anatomy, Patient Care

Authors:

N. M. T. Alresheedi¹, S. Al-Murshedi², A. K. Tootell¹, J.-A. webb¹, L. A. Walton¹, P. Hogg¹; ¹Salford/UK, ²Karbala/IQ

DOI:

10.26044/ecr2020/C-05216

DOI-Link:

https://dx.doi.org/10.26044/ecr2020/C-05216

Fig. 2: Example CT images: left – pelvis; right - head

Fig. 1: Head, and pelvis anthropomorphic phantoms used to acquire CT image data.

Fig. 4: Graph 1. Graph 1A shows interface pressures images of a human (above) and...

Fig. 5: Graph 1B shows example line profiles of interface pressure for head (human,...

Purpose

Mattresses can influence the development of pressure ulcers in at risk populations. Previous research identified that X-ray table mattresses can also impact on pressure ulcer development [1]. Pressure distribution analysis, with human participants, is a common method to assess mattresses for their potential to develop ulcers [2]. This approach has limitations - encouraging people to act as volunteers can be problematic due to time constraints and the lack of standardisation between and within humans. This study reports on a method which uses a novel inexpensive...

Methods and materials

Phase 1 - Phantom development: Commercially available imaging anthropomorphic phantoms, which represented adult head, pelvis and heels (Figure 1 ) were scanned using CT(Toshiba 16 Toshiba Medical Systems, Tokyo, Japan)[3]. After that the DICOM format CT image data was converted to NRRD file format using Slicer Software (https://www.slicer.org/) , then the NRRD file was converted to STL format using embodi3D.com. Prior to printing, STL data were processed using MeshLab (version 1.2.3-64; http://meshlab.sourceforge.net) to correct 3D surface anomalies. Four 3D printing sessions occurred – head, pelvis,...

Results

Table 1 shows the average (and SD) PPVs for 3D phantom and humans. For head, sacrum and heels, average 3D phantom and human PPVs shows excellent positive correlation across all weights (R2=0.993, 0.9973 and 0.9958, respectively). Table 1: Peak Pressure Values for phantom and humans. Categories Human volunteer data (average and SD) 3D phantom data (average and SD) Weights for 3D phantom (kg) Head Sacrum Heels Head Sacrum Heels Head Sacrum Heels Maximum 47.3±1.18 54.6±1.24 56±3.49 46.6±62.7 57.4±2.41 55.4±1.38 6 37 3 Third quartile 38.7±2.02...

Conclusion

A novel method, using a phantom instead of humans , to test X-ray mattresses for interface pressure was developed and validated. It was designed to enable X-ray table mattresses to be compared in a reliable, valid and reproducible fashion, when compared to using human volunteers. Data arising from the method could have value in the testing of X-ray mattresses that are in routine use, for mattress development to assess different designs and as baseline / performance data provided by manufacturers at the point of sale....

Personal information and conflict of interest

N. M. T. Alresheedi; Salford/UK - nothing to disclose P. H. Hogg; Salford/UK - nothing to disclose A. K. Tootell; Salford/UK - nothing to disclose J.-A. Webb; Salford/UK - nothing to disclose L. A. Walton; Salford/UK - nothing to disclose S. Al-Murshedi; Karbala/IQ - nothing to disclose

References

[1] HOWATSON-JONES, I. L. 2001. Relieving the pressure in the radiology department. Br J Nurs, 10, 219-224. [2] Beeckman, D., Defloor, T., Demarré, L., Van Hecke, A. and Vanderwee, K., 2010. Pressure ulcers: Development and psychometric evaluation of the Attitude towards Pressure ulcer Prevention instrument (APuP). International Journal of Nursing Studies. [3] TOSHIBA, M. S. C. (2004). Operation manual for whole-body X-ray CT scanner, Toshiba Medical systems corporationToshiba Aquilion 16. (2B201-313E*B). [4] SUMED-UK. 2014. How do I care for my Xsensor [Online]. Available: http://www.xsensor.co.uk/faqs.php [Accessed]...