Results 11 to 20 of about 1,704,527 (233)

Issues with threshold masking in Voxel-based morphometry of atrophied brains [PDF]

, 2009
There is great interest in using automatic computational neuroanatomy tools to study ageing and neurodegenerative disease. Voxel-Based Morphometry (VBM) is one of the most widely used of such techniques.
Fox, N.C.I., Ourselin, S., Hill, D.L.G., Warren, J.D., Ridgway, G.R., Omar, R., Fox, N.C.   +6 more
core   +1 more source

Phantoms for performance assessment of optical coherence tomography systems [PDF]

, 2012
In this paper, we describe the procedures to make epoxy resin and agarose phantoms designed using Mie scattering calculations. The phantoms are constructed to be used in the estimation of point spread function (PSF) of an optical coherence tomography ...
S. A. Hojjatoleslami, Corr, S.A., Podoleanu, A.G., Price, M.C., Podoleanu, Adrian Gh., Avanaki, M.R.N., Avanaki, Mohammad R.N., Mazrae Khoshki, R., Mark C. Price, Rohollah Mazraeh Khoshki, Price, Mark C., Adrian G. Podoleanu, Mohammad R. N. Avanaki, Corr, Serena A., Khoshki, Rohollah Mazraeh, Serena A. Corr, Hojjatoleslami, S.A.   +16 more
core   +1 more source

Geodesic Information Flows: Spatially-Variant Graphs and Their Application to Segmentation and Fusion [PDF]

, 2015
Clinical annotations, such as voxel-wise binary or probabilistic tissue segmentations, structural parcellations, pathological regionsof- interest and anatomical landmarks are key to many clinical studies.
Melbourne, A, Rueckert, D, Wolz, R, Cash, David, Ourselin, Sebastien, Melbourne, Andrew, Cash, D, Cardoso, MJ, Ourselin, S, Wolz, Robin, Modat, M, Cardoso, M. Jorge; id_orcid, Rueckert, Daniel, Modat, Marc; id_orcid   +13 more
core   +1 more source

Microwave Radar-Based Breast Cancer Detection:Imaging in Inhomogeneous Breast Phantoms [PDF]

, 2009
This letter presents, for the first time, experimental work on microwave breast cancer imaging using inhomogeneous breast phantoms. A recently designed 31-antenna array is used in imaging experiments. The imaging system operates in the full ultrawideband
A. Preece, Klemm, M, Gibbins, DR, Preece, AW, M. Klemm, I. J. Craddock, Benjamin, R, J. A. Leendertz, D. Gibbins, R. Benjamin, Leendertz, JA, Craddock, IJ   +11 more
core   +1 more source

Advancing pediatric organ dose assessment in radioiodine therapy with ICRP pediatric mesh-type reference computational phantoms

Nuclear Engineering and Technology
The present study provides updated S values (rT ← thyroid) for 30 radiosensitive organs/tissues for pediatric patients undergoing radioiodine therapy with iodine-131, utilizing the pediatric mesh-type reference computational phantoms (MRCPs) very ...
Chansoo Choi, Bangho Shin, Soo Min Lee, Yeon Soo Yeom   +3 more
doaj   +1 more source

Obtenção de volumes tumorais em pilhas de imagens PET usando técnicas de segmentação de imagens coloridas

Brazilian Journal of Radiation Sciences, 2015
This work is demonstrated the step by step how to segment color images on the thoracic region of an adult in order to separate the tumor volume at present same conditions without significantly changing the values of R components (Red), G (Green) and B ...
Jose Wilson Vieira, Igor Fagner Vieira, Leanderson Pereira Cordeiro, Ferdinand Jesus Lopes Filho, Fernando Roberto de Andrade Lima   +4 more
doaj   +1 more source

Organ and Effective Dose Coefficients for Cranial and Caudal Irradiation Geometries: Neutrons

EPJ Web of Conferences, 2017
With the introduction of new recommendations by ICRP Publication 103, the methodology for determining the protection quantity, effective dose, has been modified.
Veinot K.G., Eckerman K.F., Hertel N.E., Hiller M.M.   +3 more
doaj   +1 more source

A Numerical Voxel Model for 3D-printed Uncompressed Breast Phantoms [PDF]

, 2017
Physical breast phantoms would be useful for the development of a dedicated breast computed tomography (BCT) system and its optimization. While the conventional breast phantoms are available in compressed forms, which are appropriate for the mammography ...
김진성
core   +1 more source

Machine Learning for Predicting Neutron Effective Dose

Applied Sciences
The calculation of effective doses is crucial in many medical and radiation fields in order to ensure safety and compliance with regulatory limits. Traditionally, Monte Carlo codes using detailed human body computational phantoms have been used for such ...
Ali A. A. Alghamdi
doaj   +1 more source

Association Between Motor Pathway Damage and Motor Deficit in Upper and Lower Limb in People With MS

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Corticospinal tract damage is common in people with MS, but the degree of clinical symptoms varies. We hypothesize that corticospinal tract lesions are more extensive and severe in people with MS with motor impairments in both upper and lower limbs.
Mathilde Liffran, Malo Gaubert, Alice Dufey, Elise Bannier, Audrey Rico, Jean‐Christophe Ferré, Raphaël Chouteau, Laure Michel, Emmanuelle Le Page, Virginie Callot, Bertrand Audoin, Sarah Demortière, Benoît Combès, Anne Kerbrat   +13 more
wiley   +1 more source