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A new computer tool for systematic evaluation of intracranial volume and its capacity to evaluate the result of the operation for metopic synostosis.

Artikel i vetenskaplig tidskrift
Författare Emma Wikberg
Peter Bernhardt
Giovanni Maltese
Peter Tarnow
Jakob Heydorn Lagerlöf
Lars Kölby
Publicerad i Journal of plastic surgery and hand surgery
Volym 46
Nummer/häfte 6
Sidor 393-8
ISSN 2000-6764
Publiceringsår 2012
Publicerad vid Institutionen för kliniska vetenskaper, Avdelningen för radiofysik
Institutionen för kliniska vetenskaper, Avdelningen för plastikkirurgi
Sidor 393-8
Språk en
Länkar dx.doi.org/10.3109/2000656X.2012.71...
Ämnesord Intracranial volume; metopic synostosis; craniosynostosis
Ämneskategorier Plastikkirurgi

Sammanfattning

Abstract The aim of this project was to develop a tool for systematic evaluation of volumetric changes after surgery for craniosynostosis. A computer program using MATLAB was developed to measure total intracranial volume and frontal volume, anterior to the coronary sutures, by multiplying the area with slice thickness of each slice from just above foramen magnum to just beneath the vertex in CT examinations. The ratio between frontal volume and total volume was used for evaluation of the clinical result in 12 patients operated on for metopic synostosis. In 0.625 and 5 millimetre slices the coefficients of variation were 0.00049 and 0.00058, respectively, for measurements of total volume. The highest coefficient of variation was found in postoperative measurements of the frontal volume and was 0.014 in 0.625 millimetre slices. Measurements in 5 millimetre slices resulted in 3.8% ± 1.5% (mean ± SD) lower total volumes and 5.8% ± 5.3% lower frontal volumes than measurements in 0.625 millimetre slices. In patients operated on for metopic synostosis the ratio between frontal volume and total volume increased 25% ± 16% for patients operated on with cranioplasty in combination with a spring (n = 6) and 20% ± 13% for patients operated on with cranioplasty in combination with a bone transplant (n = 6). In summary, this study has developed a tool that can determine frontal and total intracranial volume with little variation. This tool can be used for systematic evaluation of the result of the operation for metopic synostosis.

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