scholarly journals Post-Anesthesia Hookwire Localization of Pulmonary Ground Glass Nodules Guided by Computed-Tomography Three-Dimensional Reconstruction: A Feasibility Study

2021 ◽  
Author(s):  
Chong Wang ◽  
Yang Liu ◽  
Bo Xiao ◽  
Shuku Liu
Keyword(s):  
Computed Tomography ◽  
Three Dimensional ◽  
Effective Rate ◽  
Needle Insertion ◽  
Ground Glass ◽  
Pain Patient ◽  
Three Dimensional Reconstruction ◽  
Ct Guided ◽  
Dimensional Reconstruction ◽  
Ground Glass Nodules

Abstract Background: Computed-tomography(CT) guided hookwire localization has disadvantages, such as pain, patient transport risk and increased radiation exposure. In order to overcome the above shortcomings, our method is post-anesthesia hookwire localization guided by preoperative CT three-dimensional reconstruction. The effectiveness and safety of this method will be studied.Methods: A total of 36 patients(36 nodules) with ground glass nodules were consecutively included in this study. Three dimensional reconstruction of chest CT was performed to simulate the puncture path. The puncture point, the depth and angle of needle insertion were recorded. After anesthesia, the puncture point was marked on the patient's body surface. Hookwire was placed according to the previous planned puncture direction and depth. The effectiveness and complications of the localization were evaluated during the operation.Results: Hookwire dislocation was found in 1 patient in operation. The other 35 nodules were successfully positioned. The median distance between hookwire and lesion was 14mm(3-25mm). The effective rate was 97.2%(35/36). Only one patient found a small amount of blood in the chest. There was no pulmonary hematoma, blood pressure or oxygen decreasing in all patients. The complication rate was 2.8% (1/36) and the severe complication was 0. The median time for localization was 3 minutes. Conclusion: Post-anesthesia hookwire localization guided by preoperative three-dimensional reconstruction is a simple, safe and effective localization method, which is suitable for appropriate nodules, and is an important supplement to CT guided localization.Trial registration: ChiCTR1900023853. Registered in Chinese Clinical Trail Registry on 14 June 2019, http://www.chictr.org.cn/showprojen.aspx?proj=40060

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.

scholarly journals Three-dimensional reconstruction of human nipple using refraction-contrast x-ray computed Tomography

2019 ◽  
Author(s):  
Naoki Sunaguchi ◽  
Daisuke Shimao ◽  
Shu Ichihara ◽  
Kensaku Mori ◽  
Tetsuya Yuasa ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Three Dimensional ◽  
Three Dimensional Reconstruction ◽  
X Ray ◽  
Dimensional Reconstruction ◽  
X Ray Computed

Three-dimensional reconstruction of the foot from computed tomography scans

1989 ◽  
Vol 79 (8) ◽  
pp. 384-394 ◽  
Author(s):  
BE Hirsch ◽  
JK Udupa ◽  
D Roberts
Keyword(s):  
Computed Tomography ◽  
Three Dimensional ◽  
Computer Programs ◽  
Three Dimensional Reconstruction ◽  
Articular Surfaces ◽  
Internal Structures ◽  
Computed Tomography Scans ◽  
Dimensional Reconstruction ◽  
New Type

Recently developed computer programs create a new type of image from the sections created in computed tomography. These images look like actual photographs of internal structures. The authors describe the process of three-dimensional reconstruction in nonmathematical terms, and provide examples of its use in imaging the bones of the foot. They demonstrate the technique's ability to resolve small details, and its usefulness in displaying articular surfaces.

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