Results 51 to 60 of about 90,345 (262)

Role of diffusion MRI in characterizing benign and malignant breast lesions

Indian Journal of Radiology and Imaging, 2009
Aims: The aim of this study was to evaluate the role of MRI based diffusion-weighted imaging (DWI) and the apparent diffusion coefficient (ADC) for characterizing breast lesions in Indian patients.
Palle Lalitha, Reddy Balaji
doaj  

Wet and dry cup test with hygroscopic materials: what do we really measure?

InterPore Journal
Wet and dry cup tests are widely used to characterize the vapor permeability (or the apparent vapor diffusion coefficient) of construction materials. From a theoretical approach, we examined the transport characteristics of such tests in detail.
Yuliang Zou, Elea Moss, Laurent Brochard, Philippe Coussot   +3 more
doaj   +1 more source

Diffusion weighted imaging in high-grade gliomas: A histogram-based analysis of apparent diffusion coefficient profile.

PLoS ONE, 2021
PurposeGlioblastoma and anaplastic astrocytoma represent the most commonly encountered high-grade-glioma (HGG) in adults. Although both neoplasms are very distinct entities in context of epidemiology, clinical course and prognosis, their appearance in ...
Georg Gihr, Diana Horvath-Rizea, Elena Hekeler, Oliver Ganslandt, Hans Henkes, Karl-Titus Hoffmann, Cordula Scherlach, Stefan Schob   +7 more
doaj   +1 more source

Apparent diffusion coefficient map of a case of extramedullary plasmacytoma

Journal of Radiology Case Reports, 2016
Plasmacytomas are rare tumors, which arise from the monoclonal proliferation of malignant plasma cells. They may affect either the bony skeleton or rarely the soft tissues, the latter being referred to as extramedullary or extraosseous. We report a case of an extramedullary plasmacytoma that presented as a soft tissue mass involving the muscles of the ...
Amrutha, Ramachandran, Alero F, Inyang, Ty K, Subhawong   +2 more
openaire   +2 more sources

Apparent Diffusion Coefficient Threshold for Delineation of Ischemic Core [PDF]

International Journal of Stroke, 2013
Background MRI-based selection of patients for acute stroke interventions requires rapid accurate estimation of the infarct core on diffusion-weighted MRI. Typically used manual methods to delineate restricted diffusion lesions are subjective and time consuming.
Archana, Purushotham, Bruce C V, Campbell, Matus, Straka, Michael, Mlynash, Jean-Marc, Olivot, Roland, Bammer, Stephanie M, Kemp, Gregory W, Albers, Maarten G, Lansberg   +8 more
openaire   +2 more sources

Spinal Cord Infarction Versus Idiopathic Transverse Myelitis: Clinical, Radiological, and Functional Insights From a Retrospective Cohort Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Spinal cord infarction (SCI) is a rare but devastating myelopathy, characterized by a high disability rate and an unfavorable prognosis. It has often been underdiagnosed and misdiagnosed as idiopathic transverse myelitis (ITM). This study aimed to describe the clinical features, radiological biomarkers, treatments, and functional ...
Zeqiang Ji, Jianlong Zhang, Yiming Shi, Shiyu Shan, Yang Du, Guangshuo Li, Ying Jin, Yani Zhang, Chuanying Wang, Yijun Lin, Yuhao Guo, Decai Tian, Xingquan Zhao, Tian Song   +13 more
wiley   +1 more source

Relationship between apparent diffusion coefficient and tumour cellularity in lung cancer. [PDF]

PLoS ONE, 2014
BACKGROUND AND OBJECTIVE: To prospectively investigate the relationship between the apparent diffusion coefficient (ADC) and cellularity in lung cancer.
Lihua Chen, Jiuquan Zhang, Yongfeng Chen, Wenwei Wang, Xiangdong Zhou, Xiaochu Yan, Jian Wang   +6 more
doaj   +1 more source

Clustering Algorithm Reveals Dopamine‐Motor Mismatch in Cognitively Preserved Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore the relationship between dopaminergic denervation and motor impairment in two de novo Parkinson's disease (PD) cohorts. Methods n = 249 PD patients from Parkinson's Progression Markers Initiative (PPMI) and n = 84 from an external clinical cohort.
Rachele Malito, Chiara Meneghini, Alice Galli, Luca Gallo, Pierfrancesco Mitrotti, Paola Dimartino, Marianna Inglese, Cinzia Zatti, Alessandro Lupini, Andrea Pilotto, Alessandro Padovani, Micol Avenali, Enza Maria Valente, Cristina Tassorelli, Silvia P. Caminiti   +14 more
wiley   +1 more source

The dynamic changes in quantitative parameters of diffusion-weighted imaging at different b-values in a prostate cancer mouse model and their correlation with histopathology parameters

Brazilian Journal of Medical and Biological Research
The aim of this study was to evaluate the dynamic variations in the quantitative parameters of diffusion-weighted imaging (DWI) at different b-value combinations in a prostate cancer (PCa) mouse model for noninvasive monitoring of histopathological ...
Xin Zhou, Yida Li, Xinyuan Zhang, Mengmeng Zhang, Renfu Zhang, Shengjian Sun, Guohua Li   +6 more
doaj   +1 more source

Comparison of apparent diffusion coefficient values among different MRI platforms: a multicenter phantom study

Diagnostic and Interventional Radiology, 2013
PURPOSE:We aimed to compare apparent diffusion coefficient (ADC) values among magnetic resonance imaging (MRI) scanners from different vendors.MATERIALS AND METHODS:We used a custom-made phantom solution consisting of distilled water, 0.9% NaCl, 25% NaCl,
Ali Sami Kıvrak,, Yahya Paksoy,, Cengiz Erol,, Mustafa Koplay,, Seda Özbek,, Fatih Kara   +5 more
doaj   +1 more source