Keywords:
Trauma, Technology assessment, Computer Applications-3D, CT-High Resolution, CT, Musculoskeletal system, Musculoskeletal bone, Extremities
Authors:
L. H. L. De Beuckeleer, K. Carpentier, B. De Foer, M. Pouillon; Antwerp/BE
DOI:
10.1594/essr2014/P-0043
Methods and Materials
139 patients (Male/female: 80/59; age range 7-83 years),
clinically suspicious for scaphoid fracture,
were examined within 6 days after the event with radiographs,
followed by a CBCT examination.
A series of three standard projection views (posteroanterior,
lateral and posteroanterior view with ulnar deviation) was performed.
The CBCT was performed on a NewTom 5G CBCT scanner (QR,
Italy) with the patient sitting behind the gantry,
with the arm in horizontal position through the gantry opening,
with wrist and hand fixated in order to prevent motion artifacts.
Anode voltage is maximum 110 kV at 3 mA current.
Measured field of view is 8x8 cm.
The scan time is about 7 seconds.
The CT images are generated by rotating an x-ray source around the wrist creating a series of flat panel detector radiographs with the patient sitting behind the gantry.
This results in an axial data set of 659 raw data images.
The reconstructed 3D-volume is displayed on a 19" screen,
which is used to manage image acquisition and data processing/reformatting.
Coronal,
sagittal oblique,
true sagittal and axial orthogonal 1 mm slices are reconstructed and sent by DICOM communication to a PACS system (Impax,
AGFA Healthcare,
Belgium).
All images were randomised and retrospectively reviewed,
blinded to the other examination.