Abstract
There is in the developing world a great number of idle medical equipment, due to the absence of experienced professionals to conduct an effective purchasing plan in its several phases, including vendors proposals evaluation. As artificial neural networks are typically applied for pattern recognition and function approximation, it was developed a decision-making computational model, based on artificial neural networks, which entries were grades given to physical risk, cost and strategic importance to a chosen medical equipment. The outputs were also grades attributed by clinical engineers according to the importance of five factors (clinical, financial, quality, safety and technical) during the equipment evaluation. The use of the model’s outcome allows any clinical engineer to identify the proposal that best attend the health unit requirements. To validate this model, a national inquiry (32 clinical engineers) was conducted using an electronic chart that permitted to: (a) establish a major professional profile of the inquired engineers; (b) determine which were the most important criteria considered during a medical equipment procurement process and (c) generate 95 examples that were used to train, and to test, diverse types of artificial neural networks. Hence, to represent the knowledge of clinical engineers (for the evaluation process of purchasing proposals) who worked at public hospitals, with three to ten years of experience, the best results were encountered for an ensemble of 100 two-hidden-layers perceptrons trained with the Backpropagation algorithm. The neural networks responses presented average reliability superior than 85% in all cases studied. Therefore, a connectionist computational model can be useful during a decision making process to help hospital managers to choose an appropriate medical equipment.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Calil S (2000) Critérios para aquisição de Equipamentos Médico-Hospitalares, Congresso Brasileiro de Engenharia Biomédica, Florianópolis, Brasil, 2000, p.191–121
Souza M, Silveira M., Silva, J. (2000) Análise do processo de aquisição de equipamento odonto-médico-hospitalar para a SESAB, Congresso Brasileiro de Engenharia Biomédica, Florianópolis, Brasil, 2000, p.418–422
Bronzino J (1992) Management of medical technology. Butterworth-Heinemann, Stoneham
David Y (1993) Technology evaluation in a US hospital: the role of clinical engineering. Med Biol Eng Comput 31: HTA28–HTA-32
Stiefel R, Riskalla E (1995) The elements of a complete product evaluation. Biomed Instrum Technol 29:482–488
Muller E Jr, Calil S (2000) Support system or planning and medical equipment specification aiming hospital services. World Congress on Med. Phys. & Biomed. Eng., Chicago, USA, 2000, pp 163–167
Haykin S (1999) Neural Networks: a comprehensive foundation. Prentice-Hall
Ramírez E, Baratto G, Calil S (2003) Using neural networks to select medical equipment purchasing proposals. World Congress on Med. Phys. & Biomed. Eng., Sydney, Australia, 2003
Ramírez E, Baratto G, Calil S (2004) Auxílio na decisão para aquisição de equipamentos médicos utilizando redes neurais artificiais, Congresso Latino-Americano de Engenharia Biomédica, João Pessoa, Brasil, 2004
Ramírez E, Calil S (2004) Análise da aquisição de equipamentos médicos utilizando redes neurais artificiais, Congresso Brasileiro de Informática em Saúde, Ribeirão Preto, Brasil, 2004
Author information
Authors and Affiliations
Corresponding author
Editor information
Rights and permissions
Copyright information
© 2007 International Federation for Medical and Biological Engineering
About this paper
Cite this paper
Ramírez, E.F.F., Calil, S.J. (2007). Connectionist Model to Help the Evaluation of Medical Equipment Purchasing Proposals. In: Magjarevic, R., Nagel, J.H. (eds) World Congress on Medical Physics and Biomedical Engineering 2006. IFMBE Proceedings, vol 14. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-36841-0_958
Download citation
DOI: https://doi.org/10.1007/978-3-540-36841-0_958
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-36839-7
Online ISBN: 978-3-540-36841-0
eBook Packages: EngineeringEngineering (R0)