Results 41 to 50 of about 5,120,899 (402)

Reduced inter-observer and intra-observer delineation variation in esophageal cancer radiotherapy by use of fiducial markers

Acta oncologica, 2019
Objective: Delineation variation of esophageal tumors remains a large source of geometric uncertainty. In the present study, we investigated the inter- and intra-observer variation in esophageal gross tumor volume (GTV) delineation and the impact of ...
M. Machiels, Peng Jin, J. V. van Hooft, O. Gurney-Champion, P. Jelvehgaran, E. D. Geijsen, P. Jeene, M. Willemijn Kolff, V. Oppedijk, C. Rasch, M. V. van Herk, T. Alderliesten, M. Hulshof   +12 more
semanticscholar   +1 more source

Observation Variation in Ultrasonography Assessment of Thyroid Nodules [PDF]

Asia Oceania Journal of Nuclear Medicine and Biology, 2022
Objective(s): Accurate detection and competent management of thyroid nodules, as a common disease, basically depends on the reliability of the ultrasonography (US) report.
Yasaman Sharifi, Susan Shafiei Forumad, Hamed Tabesh, Behzad Aminzadeh, Parvaneh Layegh, Abolfazl Mahmoodzadeh, Seyed Rasoul Zakavi, Saeid Eslami   +7 more
doaj   +1 more source

Spatial Variations of Fundamental Constants [PDF]

Mon.Not.Roy.Astron.Soc. 322 (2001) 585, 1999
We show that observational limits on the possible time variation of constants of Nature are significantly affected by allowing for both space and time variation. Bekenstein's generalisation of Maxwell's equations to allow for cosmological variation of $alpha$ is investigated in a universe containing spherically symmetric inhomogeneities.
arxiv   +1 more source

Effect of delayed acquisition times on Gadolinium-enhanced MRI of the presumably normal canine brain [PDF]

, 2011
A delay in imaging following intravenous contrast medium administration has been recommended to reduce misdiagnoses. However, the normal variation of contrast enhancement in dogs following a delay has not been characterized.
Brannan, N., Cameron, G., Hammond, G., Joslyn, S., Novellas Torroja, R., Sullivan, M.   +5 more
core   +1 more source

Inter- and Intra-Observer Variability and the Effect of Experience in Cine-MRI for Adhesion Detection

Journal of Imaging, 2023
Cine-MRI for adhesion detection is a promising novel modality that can help the large group of patients developing pain after abdominal surgery. Few studies into its diagnostic accuracy are available, and none address observer variability.
Bram de Wilde, Frank Joosten, Wulphert Venderink, Mirjam E. J. Davidse, Juliëtte Geurts, Hanneke Kruijt, Afke Vermeulen, Bibi Martens, Maxime V. P. Schyns, Josephine C. B. M. Huige, Myrte C. de Boer, Bart A. R. Tonino, Herman J. A. Zandvoort, Kirsti Lammert, Helka Parviainen, Aino-Maija Vuorinen, Suvi Syväranta, Ruben R. M. Vogels, Wiesje Prins, Andrea Coppola, Nancy Bossa, Richard P. G. ten Broek, Henkjan Huisman   +22 more
doaj   +1 more source

The Response of Test Masses to Gravitational Waves in the Coordinates of a Local Observer [PDF]

, 2004
The response of laser interferometers to gravitational waves has been calculated in a number of different ways, particularly in the transverse-traceless and the local Lorentz gauges.
B. Barish, B. Schutz, C. Misner, G. Callegari, G. Flores, H. Bondi, J. Ehlers, J. Synge, J.-Y. Vinet, L. Grishchuk, L. Grishchuk, L. Landau, Malik Rakhmanov, P. Fortini, P. Fortini, P. Fortini, P. Saulson, R. Blandford   +17 more
core   +3 more sources

Biopsy diagnosis of type 1 autoimmune pancreatitis: Does it bring a conclusion or confusion?

DEN Open, 2022
A biopsy‐based diagnosis of type 1 autoimmune pancreatitis (AIP) is now feasible via an endoscopic ultrasound‐guided fine‐needle biopsy, but there are potential issues to address.
Kenji Notohara
doaj   +1 more source

Does professional background influence in temporomandibular joint tissues evaluation by magnetic resonance imaging?

Journal of Oral and Maxillofacial Radiology, 2018
Context: Imaging examinations afford more consistent details than clinical evaluation in the investigation process and make the differential diagnosis of temporomandibular joint (TMJ) disorders (TMDs) easier.
Juliana Andréa Corrêa Travessas, Mathias Pante Fontana, Priscila Fernanda Da Silveira, Mariana Boessio Vizzotto, Heraldo Luis Dias Da Silveira, Nadia Assein Arús   +5 more
doaj   +1 more source

Interobserver agreement of pallor in detection of anemia

Muller Journal of Medical Sciences and Research, 2020
Introduction: The diagnosis and management of anemia largely depends on clinical assessment of pallor. There are varied opinions regarding the subjective variation in the assessment of pallor.
K Divyakrishnan, K Shreedhara Avabratha, Amita Jane D'Souza   +2 more
doaj   +1 more source

Cassini UVIS Observations of the Io Plasma Torus. III. Observations of Temporal and Azimuthal Variability [PDF]

Icarus 180 (2006) 124-140, 2005
In this third paper in a series presenting observations by the Cassini Ultraviolet Imaging Spectrometer (UVIS) of the Io plasma torus, we show remarkable, though subtle, spatio-temporal variations in torus properties. The Io torus is found to exhibit significant, near-sinusoidal variations in ion composition as a function of azimuthal position.
arxiv   +1 more source