scholarly journals A semiautomatic three-dimensional segmentation method for disarticulation of bone structures on spiral computed tomography images

1995 ◽  
Vol 8 (4) ◽  
pp. 156-161 ◽  
Author(s):  
J. Van Cleynenbreugel ◽  
D. Kratka ◽  
L. Berben ◽  
M. -H. Smet ◽  
G. Marchal ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Three Dimensional ◽  
Spiral Computed Tomography ◽  
Segmentation Method ◽  
Spiral Computed ◽  
Computed Tomography Images ◽  
Bone Structures ◽  
Three Dimensional Segmentation

The length and position of the long axis of the scaphoid measured by analysis of three-dimensional reconstructions of computed tomography images

2010 ◽  
Vol 36 (2) ◽  
pp. 98-101 ◽  
Author(s):  
Y. Guo ◽  
G. L. Tian
Keyword(s):  
Computed Tomography ◽  
Three Dimensional ◽  
Spiral Computed Tomography ◽  
Surface Model ◽  
Spiral Computed ◽  
Proximal Point ◽  
Computed Tomography Images ◽  
Distal Point ◽  
Dorsal Ridge ◽  
The Mean

We established the maximum length and the position of the long axis of the scaphoid from three-dimensional reconstructions of spiral computed tomography in 30 pairs of wrists. The distance between two points on the three-dimensional scaphoid surface model were calculated using commercially available software and corresponding coordinates of the two points were documented. The mean length was 29.3 (SD 1.6) mm for men and 26.6 (SD 1.8) mm for women. The location of the distal point was at the centre of the scaphoid tuberosity, with the proximal point of the long axis located at the dorsal ridge of the scapholunate facet.

Three-dimensional reconstruction of human diaphragm with the use of spiral computed tomography

1997 ◽  
Vol 82 (3) ◽  
pp. 998-1002 ◽  
Author(s):  
Nicolas Pettiaux ◽  
Marie Cassart ◽  
Manuel Paiva ◽  
Marc Estenne
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Three Dimensional ◽  
Spiral Computed Tomography ◽  
Three Dimensional Reconstruction ◽  
Resonance Imaging ◽  
Spiral Computed ◽  
Dimensional Reconstruction ◽  
Residual Capacity

Pettiaux, Nicolas, Marie Cassart, Manuel Paiva, and Marc Estenne. Three-dimensional reconstruction of human diaphragm with the use of spiral computed tomography. J. Appl. Physiol. 82(3): 998–1002, 1997.—We developed a technique of diaphragm imaging by using spiral computed tomography, and we studied four normal subjects who had been previously investigated with magnetic resonance imaging (A. P. Gauthier, S. Verbanck, M. Estenne, C. Segebarth, P. T. Macklem, and M. Paiva. J. Appl. Physiol. 76: 495–506, 1994). One acquisition of 15- to 25-s duration was performed at residual volume, functional residual capacity, functional residual capacity plus one-half inspiratory capacity, and total lung capacity with the subject holding his breath and relaxing. From these acquisitions, 20 coronal and 30 sagittal images were reconstructed at each lung volume; on each image, diaphragm contour in the zone of apposition and in the dome was digitized with the software Osiris, and the digitized silhouettes were used for three-dimensional reconstruction with Matlab. Values of length and surface area for the diaphragm, the dome, and the zone of apposition were very similar to those obtained with magnetic resonance imaging. We conclude that satisfactory three-dimensional reconstruction of the in vivo diaphragm may be obtained with spiral computed tomography, allowing accurate measurements of muscle length, surface area, and shape.

Three-dimensional Bronchial Imaging by Spiral Computed Tomography as Applied to Tracheobronchial Stent Placement

1999 ◽  
Vol 6 (3) ◽  
pp. 155-158 ◽  
Author(s):  
Masao Doi ◽  
Teruomi Miyazawa ◽  
Masamichi Mineshita ◽  
Sunao Suei ◽  
Takayasu Kurata ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Stent Placement ◽  
Three Dimensional ◽  
Spiral Computed Tomography ◽  
Spiral Computed ◽  
Tracheobronchial Stent
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