The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
BackgroundThere are many cone beam computed tomography (CBCT) scanners available on the market: detector technology, algorithm precision, and scanner settings influence image quality. The aim of this study was to compare the accuracy of linear measurements made on images of the same sample obtained using two different CBCT scanners.
MethodsTwenty‐eight linear measurements between orthodontic anatomical...
BackgroundProximal tibial open wedge osteotomy (PTO) is a corrective operation used in the surgery of lower extremities and is applied to patients with varus deformities for sufficient correction. The aim of the study was to evaluate whether the PTO can achieve decreased stress‐bearing on the tibia and tarsal bones in addition to correcting the mechanical axis of the lower limb in patients with tibia...
BackgroundThe validation of patient‐specific surgical guides (PSGs) by their design and the comparison of planned and actual PSG setting in total hip arthroplasty (THA) have not previously been reported.
MethodsThe errors between preoperative planning and computed tomography (CT)‐based PSG setting (E1), and between preoperative planning and implantation (E2) were evaluated using CT in 16 fresh cadaveric...
BackgroundAnterior sacroiliac joint plate fixation for unstable pelvic ring fractures avoids soft tissue problems in the buttocks; however, the lumbosacral nerves lie in close proximity to the sacroiliac joint and may be injured during the procedure.
MethodsA 49 year‐old woman with a type C pelvic ring fracture was treated with an anterior sacroiliac plate using a computed tomography (CT)–three‐dimensional...
BackgroundIntraoperative application of tomographic imaging techniques provides a means of visual servoing for objects beneath the surface of organs.
MethodsThe focus of this survey is on therapeutic and diagnostic medical applications where tomographic imaging is used in visual servoing. To this end, a comprehensive search of the electronic databases was completed for the period 2000–2013.
ResultsExisting...
Background
The aim of this study was to determine the effective dose and corresponding image quality of different imaging protocols of a robotic 3D flat panel C‐arm in comparison to computed tomography (CT).
Methods
Dose measurements were performed using a Rando–Alderson Phantom. The phantom was exposed to different scanning protocols of the 3D C‐arm and the CT. Pedicle screws were inserted in...
Background
Objective quantification of anatomical variations about the femur head–neck junction in pre‐operative planning for surgical intervention in femoro‐acetabular impingement is problematic, as no clear definition of average normal anatomy for a specific subject exists.
Methods
We have defined the normal‐equivalent of a subject's anatomy by using a statistical shape model and geometric shape...
Objective
Recent studies with robot‐guided stereotaxy use computed tomography (CT) scans for referencing. We will provide evidence that using preoperative MRI datasets referenced with a laser scan of the patient's face is sufficient for sEEG implantation.
Methods
In total, 40 sEEG electrodes were implanted in five patients by the robotic surgical assistant (ROSA). The postoperative CT scan for...
Background
Reconstruction of the mandible with autologous transplants is a challenging task and current computer‐aided surgical planning remains cumbersome. Thus, the aim of the present study was to create an automated computational approach for this procedure.
Methods
The developed algorithm is based on curves following characteristic anatomical features. Geometrical data from a physiological...
Background
This study aimed to develop a novel deep convolutional neural network called Dual‐path Double Attention Transformer (DDA‐Transformer) designed to achieve precise and fast knee joint CT image segmentation and to validate it in robotic‐assisted total knee arthroplasty (TKA).
Methods
The femoral, tibial, patellar, and fibular segmentation performance and speed were evaluated and the accuracy...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.