Smart Scan

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Smart Scan
Changing orthopaedic footwear from an art to a science.
The aim of the project is to record the orthopaedist’s procedure of scanning a patient’s foot by means of a glove. From this measurement the recorded points are classified as “on or off the surface of the foot” and also is determined if the points on the foot are “manipulations”.
Currently, 20% of all orthopaedic footwear fails to meet the patient’s needs. The footwear is either used too little or not used at all. It is believed that this is a result of the clinician operating in a data-poor environment.
The current way of creating footwear is by applying plaster to the patient its foot and manipulating it into the desired shape while the plaster is drying. After the plaster has dried, the corrections of the orthopaedist are solidified, which can be scanned with for further analysis. The downside of this method is that the information of the original uncorrected foot cannot be derived from the cast and is thus inaccessible during consultation with colleagues. This makes it hard to share and learn these procedures, especially since a large part of the orthopaedist its manipulations are based on experience and intuition.
The aim of the Smart Scan project is to bring evidence-based medicine to the orthopaedic clinic. It tries to solve the issue by recording, as accurately as possible, the manipulation of the orthopaedist during diagnosis. Since all the recorded motion tracking data will be digital, it can benefit from the already existing advantages that this medium brings. This includes easier sharing and more detailed, computational heavy, analysis. It may also be possible to derive both the uncorrected foot and manipulated foot of the patient from this data, which leads into the main question:

‘How can we measure and determine if recorded points are on or off the surface of the foot and whether the points on the foot are manipulations by the orthopaedist or not?’

To answer this question, the project has been divided into three separate modules:
- The glove part, which is responsible for making sure the sensors from which the position is measured, are fixed to the hand of the orthopaedist. This makes sure the measurements are accurate and reproducible, allowing for more detailed analysis later on.
- The software part, which is responsible for acquiring and storing sensor data as well as filtering and exporting the data. It is the “bridge” towards other professional software, such as computer-aided design (CAD) applications or analysis programs.
- The artificial intelligence part, which is responsible for classifying the position data in the three earlier mentioned categories. By having an accurate separation between these classes, the original uncorrected foot as well as the manipulated foot can be extracted.

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