Optimization of Radiation Exposure and Image Quality of the Cone-beam O-arm Intraoperative Imaging System in Spinal Surgery

2012 ◽  
Vol 25 (1) ◽  
pp. 52-58 ◽  
Author(s):  
Kasim Abul-Kasim ◽  
Marcus Söderberg ◽  
Eufrozina Selariu ◽  
Mikael Gunnarsson ◽  
Mehrsa Kherad ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Exposure ◽  
Spinal Surgery ◽  
Imaging System ◽  
Intraoperative Imaging ◽  
Cone Beam

TH-E-110-11: The Effect of Region-Of-Interest Z-Axis Collimation on the Image Quality of a Commercial Cone Beam CT Imaging System

2011 ◽  
Vol 38 (6Part36) ◽  
pp. 3875-3875
Author(s):  
M Goodsitt ◽  
S Larson ◽  
E Christodoulou
Keyword(s):  
Image Quality ◽  
Imaging System ◽  
Cone Beam Ct ◽  
Region Of Interest ◽  
Ct Imaging ◽  
Cone Beam

Effective dose and image quality for intraoperative imaging with a cone-beam CT and a mobile multi-slice CT in spinal surgery: A phantom study

2021 ◽  
Vol 81 ◽  
pp. 9-19
Author(s):  
Margherita Casiraghi ◽  
Pietro Scarone ◽  
Luca Bellesi ◽  
Maria Antonietta Piliero ◽  
Francesco Pupillo ◽  
...  
Keyword(s):  
Image Quality ◽  
Effective Dose ◽  
Spinal Surgery ◽  
Intraoperative Imaging ◽  
Cone Beam Ct ◽  
Phantom Study ◽  
Cone Beam

Image quality of a cone beam O-arm 3D imaging system

2009 ◽  
Author(s):  
Jie Zhang ◽  
Victor Weir ◽  
Jingying Lin ◽  
Hsiang Hsiung ◽  
E. Russell Ritenour
Keyword(s):  
Image Quality ◽  
3D Imaging ◽  
Imaging System ◽  
Cone Beam

Stellenwert der Navigation

2017 ◽  
Vol 01 (04) ◽  
pp. 317-334
Author(s):  
Jan-Sven Jarvers ◽  
Ulrich Spiegl ◽  
Stefan Glasmacher ◽  
Christoph Heyde ◽  
Christoph Josten
Keyword(s):  
Patient Safety ◽  
Radiation Exposure ◽  
Pedicle Screw ◽  
Spinal Surgery ◽  
Intraoperative Imaging ◽  
Intraoperative Navigation ◽  
Advantages And Disadvantages ◽  
Tumor Diseases ◽  
Intraoperative Control ◽  
Improved Technology

Abstract Importance of Navigation Navigation and intraoperative imaging have undergone an enormous development in recent years. By using intraoperative navigation, the precision of pedicle screw implantation can be increased in the sense of patient safety. Especially in the case of complex defects or tumor diseases, navigation is a decisive aid. As a result of the constantly improved technology, the requirements for reduced radiation exposure and intraoperative control can also be met. The high costs of the devices can be amortized, for example by a reduced number of revisions. This overview presents the principles of navigation in spinal surgery and the advantages and disadvantages of the different navigation procedures.

scholarly journals Modeling and image quality enhancement for dynamic compressive imaging system

2021 ◽  
Vol 15 ◽  
pp. 174830262110080
Author(s):  
Changjun Zha* ◽  
Qian Zhang* ◽  
Huimin Duan
Keyword(s):  
Image Quality ◽  
Imaging System ◽  
Quality Enhancement ◽  
Target Image ◽  
Compressive Imaging ◽  
Image Quality Enhancement ◽  
System A ◽  
Single Column ◽  
The Impact

Traditional single-pixel imaging systems are aimed mainly at relatively static or slowly changing targets. When there is relative motion between the imaging system and the target, sizable deviations between the measurement values and the real values can occur and result in poor image quality of the reconstructed target. To solve this problem, a novel dynamic compressive imaging system is proposed. In this system, a single-column digital micro-mirror device is used to modulate the target image, and the compressive measurement values are obtained for each column of the image. Based on analysis of the measurement values, a new recovery model of dynamic compressive imaging is given. Differing from traditional reconstruction results, the measurement values of any column of vectors in the target image can be used to reconstruct the vectors of two adjacent columns at the same time. Contingent upon characteristics of the results, a method of image quality enhancement based on an overlapping average algorithm is proposed. Simulation experiments and analysis show that the proposed dynamic compressive imaging can effectively reconstruct the target image; and that when the moving speed of the system changes within a certain range, the system reconstructs a better original image. The system overcomes the impact of dynamically changing speeds, and affords significantly better performance than traditional compressive imaging.

Improved image quality of cone beam CT scans for radiotherapy image guidance using fiber-interspaced antiscatter grid

2014 ◽  
Vol 41 (6Part1) ◽  
pp. 061910 ◽  
Author(s):  
Uros Stankovic ◽  
Marcel van Herk ◽  
Lennert S. Ploeger ◽  
Jan-Jakob Sonke
Keyword(s):  
Image Quality ◽  
Image Guidance ◽  
Cone Beam Ct ◽  
Ct Scans ◽  
Cone Beam ◽  
Antiscatter Grid
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