scholarly journals Impact of onlay fusion and cone beam computed tomography on radiation exposure and technical assessment of fenestrated-branched endovascular aortic repair

2019 ◽  
Vol 69 (4) ◽  
pp. 1045-1058.e3 ◽  
Author(s):  
Emanuel R. Tenorio ◽  
Gustavo S. Oderich ◽  
Giuliano A. Sandri ◽  
Pinar Ozbek ◽  
Jussi M. Kärkkäinen ◽  
...  
2020 ◽  
Vol 71 (6) ◽  
pp. 1982-1993.e5 ◽  
Author(s):  
Emanuel R. Tenorio ◽  
Gustavo S. Oderich ◽  
Giuliano A. Sandri ◽  
Pinar Ozbek ◽  
Jussi M. Kärkkäinen ◽  
...  

Author(s):  
Erol Lerisson ◽  
Benjamin O. Patterson ◽  
Adrien Hertault ◽  
Cedric Klein ◽  
François Pontana ◽  
...  

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Kyungmin Lee ◽  
Gyu-Hyoung Lee

Abstract Background Radiographs are integral in evaluating implant space and inter-root distance. The purpose of this report is to introduce a method for evaluating the 3D root position with minimal radiation using a 3D tooth model composed of an intraoral-scanned crown and a cone-beam computed tomography (CBCT)-scanned root. Materials and methods Intraoral scan and CBCT scan of the patient were obtained before treatment. In the CBCT image, tooth segmentation was performed by isolating individual teeth from the maxillary and mandibular alveolar bone using software program. The 3D tooth model was fabricated by combining segmented individual teeth with the intraoral scan. Results A post-treatment intraoral scan was integrated into the tooth model, and the resulting position of the root could be predicted without additional radiographs. It is possible to monitor the root position after a pretreatment CBCT scan using a 3D tooth model without additional radiographs. Conclusion The application of the 3D tooth model benefits the patient by reducing repeated radiation exposure while providing the clinician with a precise treatment evaluation to monitor tooth movement.


2016 ◽  
Vol 7 (2) ◽  
pp. 74-77 ◽  
Author(s):  
Zaid Baqain ◽  
Abeer Al Hadidi

Dental cone beam computed tomography (CBCT) is the three-dimensional imaging of choice in modern dentistry. In the developed world, guidelines have been published on the use of CBCT in dentistry, largely in response to the risks associated with ionising radiation exposure. However, the availability of different models on the market at affordable prices has made this machine an integral part of the contemporary dentists’ apparatus, even in the developing world. Here, we underline the importance of awareness on radiation protection, image acquisition, familiarity with the software and image interpretation.


2017 ◽  
Vol 14 (6) ◽  
pp. 620-626
Author(s):  
Xilin Liu ◽  
Jacob R Joseph ◽  
Brandon W Smith ◽  
Yamaan Saadeh ◽  
Paul Park

Abstract BACKGROUND Minimally invasive lateral lumbar interbody fusion (LLIF) is traditionally performed with biplanar fluoroscopy. Recent literature demonstrates that intraoperative cone-beam computed tomography combined with spinal navigation can be safely utilized for localization and cage placement in LLIF. OBJECTIVE To evaluate the accuracy and safety of cage placement using spinal navigation in LLIF, as well as to evaluate the radiation exposure to surgeon and staff during the procedure. METHODS The authors performed a retrospective analysis of a prospectively acquired database of patients undergoing LLIF with image-based navigation performed from April 2014 to July 2016 at a single institution. The medical records were reviewed, and data on clinical outcomes, cage accuracy, complications, and radiation exposure were recorded. All patients underwent a minimum 30-d clinical follow-up to assess intraoperative and short-term complications associated with their LLIF. RESULTS Sixty-three patients comprising 117 spinal levels were included in the study. There were 36 (57.1%) female and 27 (42.9%) male patients. Mean age was 62.7 yr (range 24-79 yr). A mean 1.9 (range 1-4) levels per patient were treated. Cages were placed in the anterior or middle of 115 (98.3%) disc spaces. Image-guided cage trajectory was accurate in 116/117 levels (99.1%). In a subgroup analysis of 18 patients, mean fluoroscopy time was 11.7 ± 9.7 s per level. Sixteen (25.4%) patients experienced a complication related to approach. CONCLUSION Use of intraoperative cone-beam computed tomography combined with spinal navigation for LLIF results in accurate and safe cage placement as well as significantly decreased surgeon and staff radiation exposure.


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