Results 31 to 40 of about 3,370,652 (304)

Super-Resolution in Diffusion-Weighted Imaging [PDF]

, 2011
Diffusion-weighted imaging (DWI) enables non-invasive investigation and characterization of the white-matter but suffers from a relatively poor resolution. In this work we propose a super-resolution reconstruction (SRR) technique based on the acquisition of multiple anisotropic orthogonal DWI scans. We address the problem of patient motions by aligning
Benoit Scherrer, Ali Gholipour, Simon K. Warfield   +2 more
openaire   +2 more sources

Evaluation of pelvic lymph nodes in patients with prostate cancer: the role of Diffusion Weighted MR Imaging (DW-MRI) [PDF]

, 2012
PURPOSE: To evaluate the role of MRI Diffusion-Weighted Imaging (DWI) to detect pelvic lymph node metastases in patients with prostate cancer (PC) candidate to radical prostatectomy and extended pelvic lymph node dissection.
VALLINI, VALENTINA
core   +1 more source

Two cases of oligometastatic castration‐resistant prostate cancer detected by diffusion‐weighted whole‐body imaging with background body signal suppression

IJU Case Reports, 2020
Introduction Treatment for oligometastasis in prostate cancer has changed from systemic therapy to metastatic lesion‐targeted therapy. Early detection of metastatic lesions and assessment of the treatment response have become very important.
Yuki Shimizu, Nobuyuki Nakajima, Kentaro Nagao, Masahiro Nitta, Masanori Hasegawa, Yoshiaki Kawamura, Toshiki Kazama, Sunao Shoji, Taro Takahara, Akira Miyajima   +9 more
doaj   +1 more source

Outlier Rejection for Diffusion Weighted Imaging [PDF]

, 2007
This paper introduces an outlier rejection and signal reconstruction method for high angular resolution diffusion weighted imaging. The approach is based on the thresholding of Laplacian measurements over the sphere of the apparent diffusion coefficient profiles defined for a given set of gradient directions. Exemplary results are presented.
Marc Niethammer, Sylvain Bouix, Santiago Aja-Fernández, Carl-Fredrik Westin, Martha Elizabeth Shenton   +4 more
openaire   +5 more sources

An error analysis of probabilistic fibre tracking methods: average curves optimization [PDF]

, 2009
Fibre tractography using diffusion tensor imaging is a promising method for estimating the pathways of white matter tracts in the human brain. The success of fibre tracking methods ultimately depends upon the accuracy of the fibre tracking algorithms and
Ratnarajah, N., Simmons, A., Davydov, O., Hojjat, A.   +3 more
core   +3 more sources

Diagnosis of pericardial cysts using diffusion weighted magnetic resonance imaging: A case series

Journal of Medical Case Reports, 2011
Introduction Congenital pericardial cysts are benign lesions that arise from the pericardium during embryonic development. The diagnosis is based on typical imaging features, but atypical locations and signal magnetic resonance imaging sequences make it ...
Mousavi Negareh, Czarnecki Andrew, Zeglinski Matthew, Du Joe, Sud Maneesh, Walker Jonathon R, Raja Asam, Jassal Davinder S, Kirkpatrick Iain DC   +8 more
doaj   +1 more source

Diffusion-Weighted Imaging and Diffusion Tensor Imaging [PDF]

Current Radiology Reports, 2014
Assessment of the integrity of the articular cartilage is considered key for the early diagnosis of osteoarthritis (OA). Diffusion-weighted imaging and diffusion tensor imaging have potential as biomarkers for cartilage composition and structure. The value of diffusion to detect compositional and structural changes in the cartilage matrix has been ...
openaire   +1 more source

Fiber tracking in q-ball fields using regularized particle trajectories [PDF]

, 2005
Most of the approaches dedicated to fiber tracking from diffusion-weighted MR data rely on a tensor model. However, the tensor model can only resolve a single fiber orientation within each imaging voxel.
Le Bihan, D, Cointepas, Y., Golestani, N, Constantinesco, A, D. Rivière, Cointepas, Y, A. Constantinesco, Poupon, C., C. Pallier, J. -F. Mangin, Y. Cointepas, Perrin, M, Riviere, D, Constantinesco, A., Perrin, M., D. Le Bihan, M. Perrin, Rieul, B, Golestani, N., Pallier, C., Rieul, B., Mangin, J. F., B. Rieul, Le Bihan, D., C. Poupon, N. Golestani, Mangin, JF, Rivière, D., Pallier, C, Poupon, C   +29 more
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The Mexican magnetic resonance imaging dataset of patients with cocaine use disorder: SUDMEX CONN

Scientific Data, 2022
Measurement(s) functional brain measurement • Diffusion Weighted Imaging • Abnormality of brain morphology • Alteration Of Cognitive Function • Clinical Study Technology Type(s) Functional Magnetic Resonance Imaging • Diffusion Weighted Imaging • Turbo ...
Diego Angeles-Valdez, Jalil Rasgado-Toledo, Victor Issa-Garcia, Thania Balducci, Viviana Villicaña, Alely Valencia, Jorge Julio Gonzalez-Olvera, Ernesto Reyes-Zamorano, Eduardo A. Garza-Villarreal   +8 more
doaj   +1 more source

Diffusion imaging shows abnormalities after blunt head trauma when conventional magnetic resonance imaging is normal [PDF]

, 2001
The investigation and management of patients after head injury must include the accurate and complete identification of cerebral damage. Using diffusion tensor imaging, abnormalities of diffusion in patients with head injuries and unremarkable MRI have ...
F J Rugg-Gunn, DUNCAN, JS, Duncan, J.S., SYMMS, MR, RUGG-GUNN, FJ, Barker, Gareth; id_orcid, GREENWOOD, R, Barker, G.J., Greenwood, R., Symms, M.J., Rugg-Gunn, F.J.   +10 more
core   +1 more source