![]() ![]() The method of wound area measurement using a planimetric software (or a graphical software with appropriate functions) and digital photographs is popular as being easy to perform and inexpensive. The most advanced 3D imaging systems provide more detail analysis of wound geometry, but theirs use in clinical practice is not common due to high costs and time consuming measurements. ![]() A more specialized device for wound area measurement uses two laser beams for linear dimensions calibration and skin curvature compensation. In more advanced methods the area of such tracing is measured by planimetric tablet like the Visitrak device, or a smartphone software. ![]() A more accurate method is based on tracing the wound contour on transparent film and then by measuring the area of the tracing, which is made by counting the number of squares within the tracing after placing the film onto a printed grid. Wound surface area is sometimes estimated from the length and width of wound measured with a ruler as an area of rectangle or, in better approximation, as an area of an ellipse. Wound area measurement were also used in the prediction of healing of deep pressure ulcers, venous leg ulcers, and postoperative diabetic foot wounds following partial amputation. It was showed that change of wound surface area over time is a good predictor of wound healing and in the treatment of patients with diabetic foot ulceration there is a recommendation to reevaluate the clinical procedures if the wound does not reduce its area by more than 40% in 4 weeks. If the drawing scale is set to anything other than 1:1, the units on the vertical ruler are the same as the units on the horizontal ruler.Management of chronic wounds like pressure ulcers or diabetic foot ulcers is time and money consuming therefore the progress of healing should be assessed. The Edit scale button does not appear if the ruler’s unit of measure is pixels. In the Document list of categories, click Rulers.Ĭhoose a drawing scale from the Typical scales list box.Ĭhoose Custom from the Typical scales list box. For information about dimension lines, see Drawing connector and callout lines. ![]() For example, you can set a more precise scale that includes decimal numbers, such as 4.5 to 10.6.ĭrawing scales are particularly useful if you are creating a technical or architectural drawing with dimension lines. A custom drawing scale lets you set any distance on the page to correspond to a real-world distance. A preset drawing scale lets you set a typical scale, such as 1:2 or 1:10. For example, you can specify that 1 inch in the drawing corresponds to 1 meter in the physical world. You can choose a preset or custom drawing scale so that distances in a drawing are proportionate to real-world distances. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |