Results 31 to 40 of about 13,148 (240)

Prediction of Seizure Outcome Using Combinations of Four Noninvasive Presurgical Modalities in Magnetic Resonance Imaging-negative Focal Intractable Epilepsy

Neurologia Medico-Chirurgica
In focal epilepsy cases, precise identification and resection of the epileptogenic zone increase the likelihood of achieving a seizure-free outcome. Nevertheless, localizing the source of epilepsy in magnetic resonance imaging-negative epilepsy cases ...
Rofat ASKORO, Kota KAGAWA, Go SEYAMA, Akitake OKAMURA, Akira HASHIZUME, Tae ONARI, Yutaka HIROKAWA, Koji IIDA, Nobutaka HORIE   +8 more
doaj   +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

Sectional anatomy quiz [PDF]

Asia Oceania Journal of Nuclear Medicine and Biology, 2017
This mage based series comprises of a quiz pertaining to the identification of salient anatomical structures expected to be seen at a given level on the computed tomography (CT) followed by examples of multiple representative pathologies that can be seen
Rashid Hashmi
doaj   +1 more source

Microlocal Methods for The Elastic Travel Time Tomography Problem for Transversely Isotropic Media [PDF]

arXiv, 2021
We study the travel time tomography problem for transversely isotropic media using the artificial boundary method used in works in X-ray tomography and boundary rigidity problems. The analysis involved requires a modification of the scattering pseudodifferential calculus in order to provide parametrices for operators which are degenerately elliptic ...
arxiv  

Comprehensive clinical evaluation of novel 4DCT‐based lung function imaging methods

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Methods have been developed that apply image processing to 4DCTs to generate 4DCT‐ventilation/perfusion lung imaging. Traditional methods for 4DCT‐ventilation rely on Hounsfield‐Unit (HU) density‐change methods and suffer from poor numerical robustness while not providing 4DCT‐perfusion data.
Ehsan Golkar, Taindra Neupane, Lydia Wilson, Jennifer Kwak, Richard Castillo, Edward Castillo, Yevgeniy Vinogradskiy   +6 more
wiley   +1 more source

State estimation: direct state measurement vs. tomography [PDF]

L. Maccone, C.C. Rusconi, "State estimation: A comparison between direct state measurement and tomography", Phys. Rev. A 89, 022122 (2014), 2013
We compare direct state measurement (DST or weak state tomography) to conventional state reconstruction (tomography) through accurate Monte-Carlo simulations. We show that DST is surprisingly robust to its inherent bias. We propose a method to estimate such bias (which introduces an unavoidable error in the reconstruction) from the experimental data ...
arxiv   +1 more source

Advances in Hybrid Icing and Frosting Protection Strategies for Optics, Lens, and Photonics in Cold Environments Using Thin‐Film Acoustic Waves

Advanced Engineering Materials, EarlyView.
This article provides a comprehensive overview of fundamentals and recent advances of transparent thin‐film surface acoustic wave technologies on glass substrates for monitoring and prevention/elimination of fog, ice, and frost. Fogging, icing, or frosting on optical lenses, optics/photonics, windshields, vehicle/airplane windows, and solar panel ...
Hui Ling Ong, Zhangbin Ji, Luke Haworth, Yihao Guo, Jaime del Moral, Stefan Jacob, Ana Borras, Agustin R. Gonzalez‐Elipe, Jikai Zhang, Jian Zhou, Glen McHale, Yong‐Qing Fu   +11 more
wiley   +1 more source

Imaging of the thyroid: Recent advances

Indian Journal of Endocrinology and Metabolism, 2012
Although thyroid scintigraphy and ultrasound continues to be the mainstay of the diagnostic imaging of the thyroid gland, there have been several recent advances that are of interest to both radiologists and endocrinologists.
Vikas Chaudhary, Shahina Bano
doaj   +1 more source

Scalable Fabrication of Height‐Variable Microstructures with a Revised Wetting Model

Advanced Engineering Materials, EarlyView.
Height‐variable microstructures are fabricated using a scalable CO2 laser machining approach, enabling precise control of wettability through structural gradients. Classical wetting models fail to capture height‐induced effects, necessitating a revised theoretical framework.
Prabuddha De Saram, Nam‐Trung Nguyen, Navid Kashaninejad   +2 more
wiley   +1 more source

Single photon emission computed tomography-CT in ectopic parathyroid adenoma

Indian Journal of Endocrinology and Metabolism, 2011
Primary hyperparathyroidism often presents with protean manifestations, resulting in delayed diagnosis. At times, aberrant development and migration of the gland leads to ectopic location leading to problems in localization.
K. V. S Hari Kumar, Sangeeta Jha, Altamash Shaikh, K D Modi   +3 more
doaj   +1 more source