Results 141 to 150 of about 921,622 (398)

Retinal detachment and retinoschisis associated with optic disc pit in peripapillary staphyloma

American Journal of Ophthalmology Case Reports, 2022
Purpose: To determine the characteristics and clinical course of an eye with a peripapillary staphyloma and an optic disc pit associated with a retinal detachment (RD) and retinoschisis.
Kana Okano, Tomoka Ishida, Makoto Inoue, Akito Hirakata   +3 more
doaj  

Horizontal and vertical optic disc rotation. The Beijing Eye Study.

PLoS ONE, 2017
PurposeTo measure the optic disc rotation around the vertical and horizontal disc axis and to evaluate associations with general and ocular parameters.DesignPopulation-based study.MethodsIn the Beijing Eye Study, 3468 participants (mean age:64.6±9.8 ...
Yuan Yuan Fan, Jost B Jonas, Ya Xing Wang, Chang Xi Chen, Wen Bin Wei   +4 more
doaj   +1 more source

Stereotactic radiotherapy for metastatic brain tumors: A comparative analysis of dose distributions among VMAT, Helical TomoTherapy, CyberKnife, Gamma Knife, and ZAP‐X

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract This study evaluates various radiotherapy techniques for treating metastatic brain tumor (BT), focusing on non‐coplanar volumetric modulated arc radiotherapy (NC‐VMAT), coplanar VMAT (C‐VMAT), Helical TomoTherapy (HT), CyberKnife (CK), Gamma Knife (GK), and ZAP‐X.
Toshihiro Suzuki, Masahide Saito, Ryutaro Nomura, Hikaru Nemoto, Naoto Yanagisawa, Ryuma Sawada, Zennosuke Mochizuki, Naoki Sano, Hiroshi Onishi, Hiroshi Takahashi   +9 more
wiley   +1 more source

Clinical Validation of a Smartphone-Based Adapter for Optic Disc Imaging in Kenya.

JAMA ophthalmology, 2016
IMPORTANCE Visualization and interpretation of the optic nerve and retina are essential parts of most physical examinations. OBJECTIVE To design and validate a smartphone-based retinal adapter enabling image capture and remote grading of the retina ...
A. Bastawrous, M. Giardini, N. Bolster, T. Peto, Nisha V. Shah, I. Livingstone, H. Weiss, Sen Hu, Hillary Rono, H. Kuper, M. Burton   +10 more
semanticscholar   +1 more source

BreastWatch: A Varian Eclipse script tool for Community‐Based automatic evaluation of breast treatment plans

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This work introduces BreastWatch, a Varian Eclipse script tool designed to help medical physicists, dosimetrists, and radiation oncologists easily inspect and improve External Beam Breast Treatment (EBBT) plans using automatic evaluation of protocol dose‐constraints enhanced by a Community‐Based approach.
Stefano Agostinelli, Daniele Zefiro, Stefania Garelli, Francesca Cavagnetto, Marco Gusinu, Monica Bevegni, Gladys Blandino, Alessandra Fozza, Fabrizio Levrero   +8 more
wiley   +1 more source

A Rare Case of Symptomatic Double Optic Disc Pit without Maculopathy

Case Reports in Ophthalmological Medicine, 2016
Optic disc pits are an uncommon congenital abnormality. Patients remain asymptomatic unless they develop maculopathy. We present a rare case of a double optic disc pit of which only three others have been reported worldwide.
Zaria Ali, Mohammad Abdul-Nabi
doaj   +1 more source

Optic Disc Perfusion in Primary Open Angle and Normal Tension Glaucoma Eyes Using Optical Coherence Tomography-Based Microangiography

PLoS ONE, 2016
Purpose To investigate optic disc perfusion differences in normal, primary open-angle glaucoma (POAG), and normal tension glaucoma (NTG) eyes using optical microangiography (OMAG) based optical coherence tomography (OCT) angiography technique.
Karine D Bojikian, Chieh-Li Chen, J. Wen, Qinqin Zhang, Chen Xin, Divakar Gupta, R. Mudumbai, M. Johnstone, Ruikang K. Wang, Philip P. Chen   +9 more
semanticscholar   +1 more source

Surface dose analysis and dosimetric comparison of Halcyon versus Truebeam in breast cancer radiotherapy: An OSL dosimetry study

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Breast cancer is a neoplastic disease with high prevalence among women. Radiotherapy is one of the principal treatment modalities for this disease, but it poses significant challenges. This study aimed to compare and evaluate the technical and dosimetric performance of conventional C‐arm linac systems and a new design, Halcyon, in the ...
Mustafa Çağlar, Kudret Akçay, Esra Serin, Dursun Eşitmez, Mehmet Sıddık Cebe, Navid Kheradmand, Ömer Yazıcı, Dilek Ünal, Evrim Metcalfe   +8 more
wiley   +1 more source

Using deep learning generated CBCT contours for online dose assessment of prostate SABR treatments

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Prostate Stereotactic Ablative Body Radiotherapy (SABR) is an ultra‐hypofractionated treatment where small setup errors can lead to higher doses to organs at risk (OARs). Although bowel and bladder preparation protocols reduce inter‐fraction variability, inconsistent patient adherence still results in OAR variability.
Conor Sinclair Smith, Isabelle Gagne, Karl Otto, Carter Kolbeck, Joshua Giambattista, Abraham Alexander, Sonja Murchison, Andrew Pritchard, Erika Chin   +8 more
wiley   +1 more source

Digital Light Processing of 2D Lattice Composites for Tunable Self‐Sensing and Mechanical Performance

Advanced Engineering Materials, EarlyView., 2023
The study presents the mechanical and in situ sensing performance of digital light processing‐enabled 2D lattice nanocomposites under monotonic tensile and repeated cyclic loading, and provides guidelines for the design of architectures suitable for strain sensors and smart lightweight structures.
Omar Waqas Saadi, Mohammed Ayaz Uddin, Andreas Schiffer, Shanmugam Kumar   +3 more
wiley   +1 more source