Evaluation of the reliability and accuracy of femur measurements acquired from computed tomography images
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Date
2023
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Publisher
Ankara Üniversitesi
Abstract
The biological profile holds notable significance within forensic
assessments, as it plays a crucial role in determining biological identity.
Moreover, it possesses substantial potential for applications in fields such
as medical legal cases and forensic anthropology. Recent advancements
in technology, specifically in the field of computed tomography, have
enabled the accurate acquisition of detailed anatomical data from
CT scans present in extensive medical repositories. The validity of
new methods developed through the application of these techniques
should therefore be analyzed. The primary intent of this research
was to investigate the measurement accuracy obtained from CTgenerated 3D femur models. To investigate the accuracy and reliability
of measurements obtained from CT-generated 3D femur models, 3
different studies were conducted. A dataset comprising fifteen femurs
was employed for analysis and measurement purposes. The obtained
images were subsequently compared to twelve measurements acquired
from the dry femora, enabling an assessment of the reliability and
accuracy of both measurement protocols. To investigate the effect of
CT parameters and soft tissue, 4 femurs were used. The analysis of
twelve femur measurements obtained from the CT images processed
with OsiriX software was carried out using Excel software packages and
SPSS 24.0. From the results of this study, it can be observed that there
is no discernible pattern regarding the reliability of image acquisition
in any particular way. This implies that both dry femur bone and 3D
virtual femur models can be used interchangeably for the 12 metric
measurements used in this study, and at the same time, different scanning
parameters or soft tissue influence for these measurements do not make
a statistically significant difference
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Keywords
3D imaging, CT parameters, metric measurements, femur, forensic anthropology