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Thesis
Age-related changes in geometric characteristics of the pediatric thoracic cage and comparison of thorax shape with a pediatric CPR manikin
Master of Science (M.S.), Drexel University
Jun 2010
DOI:
https://doi.org/10.17918/etd-3347
Abstract
Pediatric cardiopulmonary resuscitation (CPR) manikins are currently used as training devices to simulate resuscitation methods for treating pediatric cardiac arrest or airway obstructions. In order for these manikins to meet clinically regulated CPR delivery guidelines and to function as effective surrogates, pediatric CPR manikins should have geometric and mechanical characteristics that are similar to pediatric human subjects. The objectives of this study were to (1) quantify the detailed geometric characteristics of the pediatric thoracic cage by using computed tomography (CT) scans obtained from pediatric human subjects, and (2) to compare the thorax shape of a pediatric CPR manikin (Little Junior CPR manikin, Laerdal, Stavanger, Norway) with a six year old pediatric human subject. Thorax CT scans were obtained from one, three, six, 10 and 18 year old male subjects (5 subjects per age group). Anatomical landmarks on the thoracic cage, such as costochondral junction, tubercle, external surface of the rib shaft etc., were digitized and a custom MATLAB code was created to compute the geometrical characteristics based on the Cartesian coordinates of these points. The key computed parameters include rib length, rib angle, longitudinal twist of the ribs, and radius of curvature of the ribs. Age-specific differences were observed in the pediatric thoracic structure in many of the computed parameters. The comparison of the outer thorax surface of the pediatric CPR manikin and a six year old child was performed in ProEngineer (Parametric Technology Corporation, Santa Clara, CA). Differences were observed in the overall thorax shape between the pediatric CPR manikin and the pediatric human subject. These shape comparisons indicate a need to modify the design of the pediatric CPR manikin thorax to be more representative of the pediatric human thorax.
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Details
- Title
- Age-related changes in geometric characteristics of the pediatric thoracic cage and comparison of thorax shape with a pediatric CPR manikin
- Creators
- Amanda R. Comeau - DU
- Contributors
- Sriram Balasubramanian (Advisor) - Drexel University (1970-)
- Awarding Institution
- Drexel University
- Degree Awarded
- Master of Science (M.S.)
- Publisher
- Drexel University; Philadelphia, Pennsylvania
- Resource Type
- Thesis
- Language
- English
- Academic Unit
- School of Biomedical Engineering, Science, and Health Systems (1997-2026); Drexel University
- Other Identifier
- 3347; 991014632526904721