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1 Journal of Medical Informatics & Technologies

1 2007

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The computer analysis of photographs thermovision and RTG pictures in correlation with spirometry in scoliosis diagnostics

Dyszkiewicz A., Wróbel Z., Chachulski D., Połeć P., Zajdel J.

Journal of Medical Informatics & Technologies

2007

Vol. 11

299--309

In the study, the outline of etiopatogenesis and epidemiology of the lateral spinal curvature is presented. We proposed multiparameter verification of the radiography and spirometry factors detected by thermovision investigation conducted on the patients of The Outpatient Clinic for Rehabilitation. The binary, take-off board thermo-pictures carried out using different temperature thresholds, visualised asymmetry of infrared radiation emitted by paravertebral muscles in kinds of scoliosis and symmetric images in normal condition. The different level of the correlation between thermovision picture asymmetry factor (TAF), the value of the Cobb's angle and the normal breathing capacity index (VS, DS) were obtained depending on the type of scoliosis. The aim of the work was to answer the following questions: (1) In what type of scoliosis the correlation between curvature angle and the respiratory capacity and spine asymmetry factor SAF is the highest. (2) Does the noticeable asymmetry of para-vertebral muscles in the thermographic image exist among the groups of scoliosis examined? (3) Does the simple type of plan-metric image processing guarantee sufficient level of expression in infrared emission differences between para-vertebral muscles? (4) In which type of scoliosis the correlation between curvature angle, respiratory factors (VS, SD) and the thermoemission asymmetry index (TAF) is the highest.The research group consisted of 60 persons: 20 boys (33,3% of the group) and 40 girls (66,6%). The average age for girls was 13,5 (± 3,65), for boys - 12,7 (± 2,85). The control group consisted of 30 healthy children from The Second Primary School of Cieszyn of which 10 were boys aged on average 11,7 (± 1,25) and 20 were girls aged on average 12,8 (± 2,4).Conclusions: (1) asymmetry of termovision picture in correlation with respiratory factors and the Cobb's angle exists in long-arched curvatures mainly in mirror type. (2) thermovision asymmetry factor (TAF) and spine asymmetry factor (SAF) of light photographs had better correlations with Cobb's angle than respiratory parameters VC, DC, (3) simplified procedure for measuring asymmetry factors in photographs recommended this methods to screen scoliosis diagnostic because it is less expensive comparing to infrared camera diagnistics.