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.
Long‐wavelength fluorescence carbon dots (CDs) show great importance in multiple fields, especially for the biochemical sensing. Here, we proposed one type of CDs doped with nitrogen and sulfur through the hydrothermal method, which exhibited obvious yellow‐fluorescence in aqueous solution. Importantly, the fluorescence intensity of CDs decreased with pH decreasing in the acidic range, thus a linear...
Objective
We propose a robust and accurate knee joint modelling method with bone and cartilage structures to enable accurate surgical guidance for knee surgery.
Methods
A multimodality registration strategy is proposed to fuse magnetic resonance (MR) and computed tomography (CT) images of the femur and tibia separately to remove spatial inconsistency caused by knee bending in CT/MR scans. Automatic...
Background
Automatic segmentation of temporal bone structures from patients' conventional computed tomography (CT) data plays an important role in the image‐guided cochlear implant surgery. Existing convolutional neural network approaches have difficulties in segmenting such small tubular structures.
Methods
We propose a light‐weight three‐dimensional convolutional neural network referred to as...
Background
Human‐related factors affect the accuracy and safety of the oral and maxillofacial surgery (OMS). This study proposed an autonomous surgical system aiming to conduct the OMS under the assistance and surveillance of the surgeon.
Methods
A markerless navigation module and a compact OMS robot were seamlessly integrated into this system. The specifications of each module and the working...
Background: The limited field of view of the X‐ray image intensifier makes it difficult to cover a large target area with a single X‐ray image. X‐ray image stitching techniques have been proposed to produce a panoramic X‐ray image.
Methods: This paper presents an efficient intensity‐based X‐ray image stitcher, which does not rely on accurate C‐arm motion control or auxiliary devices and hence is ready...
Background
Oral and maxillofacial surgery has not been benefitting from image guidance techniques owing to the limitations in image registration.
Methods
A real‐time markerless image registration method is proposed by integrating a shape matching method into a 2D tracking framework. The image registration is performed by matching the patient's teeth model with intraoperative video to obtain its...
BackgroundThis study presents a tracker‐less image‐mapping framework for surgical navigation motivated by the clinical need for intuitive visual guidance during minimally invasive fetoscopic surgery.
MethodsA navigation framework mapping 2D endoscopic vision to a 3D ultrasound image model is proposed. This maps an endoscopic image onto a 3D placenta model through a one‐time ultrasound image‐based...
BackgroundIt is tedious and difficult to position a flexible catheter in a target vessel branch within complicated‐shaped vessels owing to the lack of real‐time visual feedback. Digital subtraction angiography and fluoroscopic guidance are currently used for catheter placement.
MethodsThe proposed method employs an electromagnetic (EM) tracking system to track a sensor‐attached catheter. Vessel centerlines...
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.