Results 41 to 50 of about 687,399 (266)

Endoscopic resection of skull base chordoma via the combined oral and nasal approach

Chinese Journal of Contemporary Neurology and Neurosurgery, 2023
Objective To summarize the efficacy and safety of endoscopic resection of skull base chordoma via the combined oral and nasal approach. Methods The clinical data and follow⁃up data of 192 patients with skull base chordoma admitted to the Department of ...
LIU Jun⁃qi, WANG Li, WANG Zhen⁃lin, ZHANG Qiu⁃hang, QI Yan, WEI Wei   +5 more
doaj   +1 more source

A method for automatic forensic facial reconstruction based on dense statistics of soft tissue thickness [PDF]

, 2018
In this paper, we present a method for automated estimation of a human face given a skull remain. The proposed method is based on three statistical models. A volumetric (tetrahedral) skull model encoding the variations of different skulls, a surface head model encoding the head variations, and a dense statistic of facial soft tissue thickness (FSTT ...
arxiv   +1 more source

Assessing proton plans with three different beam delivery systems versus photon plans for head and neck tumors

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose To compare plan quality among photon volumetric modulated arc therapy (VMAT) and intensity‐modulated proton therapy (IMPT) with robustness using three different proton beam delivery systems with various spot size (σ) ranges: cyclotron‐generated proton beams (CPBs) (σ: 2.7–7.0 mm), linear accelerator proton beams (LPBs) (σ: 2.9–5.5 mm),
Tara Gray, Chieh‐Wen Liu, Saeed Ahmed, Anna Maria Kolano, Jeremy Donaghue, Shlomo Koyfman, Neil Woody, Shauna R. Campbell, Jonathan B. Farr, Ping Xia   +9 more
wiley   +1 more source

Study hard and work hard

Chinese Journal of Contemporary Neurology and Neurosurgery, 2020
DOI：10.3969/j.issn.1672⁃6731.2020.03 ...
Ren⁃zhi WANG
doaj  

Imaging of Skull Base Tumors

Tomography, 2023
The skull base provides a platform for supporting the brain while serving as a conduit for major neurovascular structures. In addition to malignant lesions originating in the skull base, there are many benign entities and developmental variants that may ...
Bilal Battal, Carlos Zamora
doaj   +1 more source

Simultaneous Skull Conductivity and Focal Source Imaging from EEG Recordings with the help of Bayesian Uncertainty Modelling [PDF]

arXiv, 2020
The electroencephalography (EEG) source imaging problem is very sensitive to the electrical modelling of the skull of the patient under examination. Unfortunately, the currently available EEG devices and their embedded software do not take this into account; instead, it is common to use a literature-based skull conductivity parameter. In this paper, we
arxiv  

Does dose calculation algorithm affect the dosimetric accuracy of synthetic CT for MR‐only radiotherapy planning in brain tumors?

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study compares the dosimetric accuracy of deep‐learning‐based MR synthetic CT (sCT) in brain radiotherapy between the Analytical Anisotropic Algorithm (AAA) and AcurosXB (AXB). Additionally, it proposes a novel metric to predict the dosimetric accuracy of sCT for individual post‐surgical brain cases.
Jeffrey C. F. Lui, Francis K. H. Lee, C. C. Law, James C. H. Chow   +3 more
wiley   +1 more source

Current situation and problems in skull base surgery

Chinese Journal of Contemporary Neurology and Neurosurgery, 2020
Because of the complex anatomic relationship and difficult treatment of skull base tumors, a multidisciplinary diagnosis and treatment mode (neurosurgery, otorhinolaryngology, head and neck surgery, oral and maxillofacial surgery, ophthalmology, plastic ...
Ren⁃zhi WANG, Ming FENG
doaj  

Heterogeneous Angular Spectrum Approach for Trans-skull Imaging and Focusing [PDF]

, 2019
Ultrasound, alone or in concert with circulating microbubble contrast agents, has emerged as a promising modality for therapy and imaging of brain diseases. While this has become possible due to advancements in aberration correction methods, a range of applications, including adaptive focusing and tracking of the microbubble dynamics through the human ...
arxiv   +1 more source

Feasibility study of skin dosimetry with TLD sheets for measuring the effect of 3D printed bolus in radiotherapy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract The thermoluminescence dosimeter (TLD) sheet is a measurement device coated with manganese‐doped LiB3O5 in sheet form. The sheet is 0.2‐mm thick and flexible. Hence, it can fit and be installed on irregular surfaces. The current study aimed to evaluate the feasibility of measuring patient surface doses during radiation therapy using TLD sheets.
Yuya Miyasaka, Mayumi Ichikawa, Takagi Akira, Yoshifumi Yamazawa, Hongbo Chai, Hikaru Souda, Miyu Ishizawa, Hiraku Sato, Takeo Iwai   +8 more
wiley   +1 more source