Results 51 to 60 of about 2,854 (185)

Restriction‐Weighted Q‐Space Trajectory Imaging (ResQ): Toward Mapping Diffusion‐Time Effects With Tensor‐Valued Diffusion Encoding in Human Prostate Cancer Xenografts

NMR in Biomedicine, Volume 39, Issue 8, August 2026.
Tensor‐valued diffusion MRI enables microstructure characterization but can be confounded by the presence of restricted diffusion. We introduce ResQ, a framework that incorporates restriction weighting into q‐space trajectory imaging and we evaluate it in a longitudinal study of prostate cancer xenografts treated by external radiotherapy. ResQ revealed
Filip Szczepankiewicz, Malwina Molendowska, Samo Lasič, Marcella E. Safi, Michael Gottschalk, Evangelia Sereti, Anders Bjartell, Linda Knutsson, Oskar Vilhelmsson Timmermand, Crister Ceberg, Joanna Strand   +10 more
wiley   +1 more source

Whole-lesion histogram analysis of multiple diffusion metrics for differentiating lung cancer from inflammatory lesions

Frontiers in Oncology, 2023
BackgroundWhole-lesion histogram analysis can provide comprehensive assessment of tissues by calculating additional quantitative metrics such as skewness and kurtosis; however, few studies have evaluated its value in the differential diagnosis of lung ...
Jiaxin Li, Baolin Wu, Zhun Huang, Yixiang Zhao, Sen Zhao, Shuaikang Guo, Shufei Xu, Xiaolei Wang, Tiantian Tian, Zhixue Wang, Jun Zhou   +10 more
doaj   +1 more source

Standard Model Imaging in the Brain and Spinal Cord of MS Patients: Initial Assessment and Comparison to Diffusion Tensor Imaging

NMR in Biomedicine, Volume 39, Issue 8, August 2026.
DTI and SMIfw diffusion models applied in persons with multiple sclerosis revealed region‐specific sensitivity to microstructural injury, but performance differed by anatomical region. SMIfw neurite density fraction demonstrated high sensitivity and reliability in both the brain and spinal cord, whereas DTI measures such as fractional anisotropy and ...
Atlee Witt, Alicia E. Cronin, Bailey Busher, Isabella Stuart, Grace Sweeney, Kristin P. O'Grady, Seth A. Smith, Samantha By, Kurt Schilling   +8 more
wiley   +1 more source

Optimal Gradient Encoding Schemes for Diffusion Tensor and Kurtosis Imaging

, 2016
Diffusion-derived parameters find application in characterizing pathological and developmental changes in living tissues. Robust estimation of these parameters is important because they are used for medical diagnosis. An optimal gradient encoding scheme (
Maier, Stephan E, Kahl, Fredrik, Maier, Stephan E., Starck, G\uf6ran, Maier, Stephan E,, Alipoor, Mohammad,, Gu, Irene Y.H.,, Mehnert, Andrew, Maier, Stephan E.,, Kahl, Fredrik,, Alipoor, Mohammad, Starck, Göran, Gu, Irene Yu-Hua,, Gu, Irene Y.H., Gu, Irene Yu-Hua, Mehnert, Andrew,, Starck, Göran,   +16 more
core   +1 more source

Diffusion kurtosis imaging of gliomas grades II and III - a study of perilesional tumor infiltration, tumor grades and subtypes at clinical presentation

Radiology and Oncology, 2017
Diffusion kurtosis imaging (DKI) allows for assessment of diffusion influenced by microcellular structures. We analyzed DKI in suspected low-grade gliomas prior to histopathological diagnosis.
Delgado Anna F., Fahlström Markus, Nilsson Markus, Berntsson Shala G., Zetterling Maria, Libard Sylwia, Alafuzoff Irina, van Westen Danielle, Lätt Jimmy, Smits Anja, Larsson Elna-Marie   +10 more
doaj   +1 more source

Diffusion kurtosis imaging (DKI) in the human calf muscles [PDF]

, 2016
Human calf muscle injuries are relatively common among individuals from various backgrounds. Miniscule tears in the muscles of the calf such as the medial gastrocnemius, lateral gastrocnemius, and soleus, may be difficult to identify using traditional ...
Lindquist, Mirabelle
core  

Value of diffusion kurtosis imaging in assessing low-grade gliomas

, 2018
Background Diffusion kurtosis imaging (DKI) measures have been shown to provide increased sensitivity relative to diffusion tensor imaging (DTI) in detecting pathologies.
Efrat Saraf-Lavi, Sheriff, Sulaiman, Ricardo J. Komotar, Sulaiman Sheriff, Saraf‐Lavi, Efrat, Deborah O. Heros, Andrew A. Maudsley, Goryawala, Mohammed Z, Komotar, Ricardo J, Maudsley, Andrew A, Mohammed Z. Goryawala, Heros, Deborah O   +11 more
core   +1 more source

Characterizing the Diffusion Properties of Prostate Tissue Using Paired MR Microscopy and Multidimensional Diffusion MRI

Magnetic Resonance in Medicine, Volume 96, Issue 1, Page 349-365, July 2026.
ABSTRACT Purpose To characterize the diffusion properties of prostate epithelium and stroma in benign tissue and cancer. Methods Paired MR microscopy (20 μm) and multidimensional diffusion MRI (dMRI) (160 μm, b = 1000–2000 s/mm2, ∆ = 15–120 ms) were performed at 16.4 T on 17 fixed prostate tissue samples (14× benign, 2× Gleason 3 + 3, 1× Gleason 4 + 4).
Adam Phipps, Nyoman D. Kurniawan, Geoff Watson, Paul Sved, Samson Dowland, Eleftheria Panagiotaki, David Atkinson, Roger Bourne   +7 more
wiley   +1 more source

In Vivo Imaging Markers for Prediction of Radiotherapy Response in Patients with Nasopharyngeal Carcinoma: RESOLVE DWI versus DKI

Scientific Reports, 2018
In this prospective study, we compared the performance of readout segmentation of long variable echo trains of diffusion-weighted imaging (RESOLVE DWI) and diffusion kurtosis imaging (DKI) for the prediction of radiotherapy response in patients with ...
Wei-Yuan Huang, Meng-Meng Li, Shao-Min Lin, Feng Chen, Kai Yang, Xiao-Lei Zhu, Gang Wu, Jian-Jun Li   +7 more
doaj   +1 more source

Application of magnetic resonance diffusion kurtosis imaging for distinguishing histopathologic subtypes and grades of rectal carcinoma

Cancer Imaging, 2019
Background To evaluate the diagnostic performance of diffusion kurtosis imaging (DKI) for distinguishing different histopathological subtypes and grades of rectal carcinoma and to compare DKI with conventional diffusion-weighted imaging (DWI).
Ziqiang Wen, Yan Chen, Xinyue Yang, Baolan Lu, Yiyan Liu, Bingqi Shen, Shenping Yu   +6 more
doaj   +1 more source