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Model-based segmentation of pediatric and adult joints for orthopedic measurements in digital radiographs of the lower limbs
- Link:
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- Autor/in:
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- Verlag/Körperschaft:
- Hamburg University of Technology
- Erscheinungsjahr:
- 2011
- Medientyp:
- Text
- Schlagworte:
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- Active shape models
- Bone age assessment
- Digital radiography
- Orthopedics
- Segmentation
- X-ray
- 610: Medizin
- Beschreibung:
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- The growth of human bones forms a major problem when automatically segmenting orthopedic radiographs. Any template-based segmentation methods fails to fully capture these non-linear developments. However to extract orthopedic measurements or the bone age for patients of arbitrary age it is mandatory to have a segmentation scheme that deals with growth related changes. In this paper we propose a robust method based on Active Shape Models (ASMs) that on the one hand is invariant against the patient's age and on the other hand generalizes well over the large inter-patient variability. Our method achieves an accuracy of 0.48 mm for adult patients and 0.64 mm for children on a large test set of 180 images, with the patient's age covering a high range from less than one month to 93 years. © 2010 Springer-Verlag.
- Beziehungen:
- DOI 10.1007/s00450-010-0139-8
- Quellsystem:
- TUHH Open Research
Interne Metadaten
- Quelldatensatz
- oai:tore.tuhh.de:11420/9998