To investigate the usefulness of intravoxel incoherent motion diffusion-weighted imaging (IVIM-DWI) in discriminating the pathological complete response (pCR) to neoadjuvant chemoradiotherapy

Moreover, diffusion-weighted imaging (DWI) is another magnetic resonance modality that is able to objectively and quantitatively assess perfusion and diffusion to aid detection of malignancies. 7 –10 DWI can provide additional information to identify focal pancreatic lesions, verifying more restricted diffusion in solid malignant tumors versus benign inflammatory ones. 11 –14 However, the

All hidden states from the question and the context are used to calculate the Focal Visual-Text Attention (FVTA) tensor. Based on the FVTA attention, both  There are 69 malignant cases (including 9 early malignant cases) and 35 benign breast cases who underwent diffusion-weighted MRI at 3.0 T with 8 b-values (0  As an improved MRI technique, diffusion-weighted imaging (DWI) is considered the most sensitive for early pathological changes. Perfusion measurement has  Sammanfattning: Purpose: Intravoxel incoherent motion (IVIM) modeling for controlled study, diffusion coefficient, diffusion weighted imaging, female, human,  University of Gothenburg - ‪‪Citerat av 114‬‬ - ‪MRI‬ of the intravoxel incoherent motion (IVIM) diffusion coefficient (D) and perfusion Visual pathway impairment by pituitary adenomas: quantitative diagnostics by diffusion tensor imaging. En utökad DWI-teknik, Intravoxel incoherent motion (IVIM), har därför utvecklats för att mäta både diffusion och perfusion.

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J Magn Reson Imaging. 2016; 44:620–632. doi: 10.1002/jmri.25191. Crossref Medline Google Scholar; 15. To evaluate the performance of intravoxel incoherent motion (IVIM)-diffusion-weighted imaging (DWI) in differentiating uterine fibroids from focal adenomyosises. Twenty-five uterine fibroids and 21 focal adenomyosises prospectively underwent IVIM-DWI examination prior to surgery. Four parameters including apparent diffusion coefficient total values (ADCtot), true diffusion coefficient (D A, B: The rectal cancer is isointense on T1-weighted image (A) with slightly high signal intensity on T2-weighted image (B); C: On diffusion weighted imaging, the cancer shows hyperintensity (white arrows); D-F: The pseudocolor maps of D, D* and f derived from intravoxel incoherent motion are displayed, the values of the D, D* and f were 1.03 ± 0.12 × 10-3 mm 2 /s, 50.35 ± 24.96 × 10-3 mm Biomarker / Brain / Diffusion Weighted Imaging (DWI) – IVIM Description Quibim’s app automatically performs intra-voxel incoherent motion (IVIM) analysis to detect changes in the microstructure of tissues to assess cancer processes in clinical practice and research.

OBJECTIVE. The purpose of this study is to investigate whether the intravoxel incoherent motion (IVIM) diffusion-weighted imaging (DWI) parameters are different between prostate cancer, benign prostatic hyperplasia (BPH), and healthy peripheral zone (PZ).

2016; 44:620–632. doi: 10.1002/jmri.25191.

PURPOSE: To investigate the potential of Intravoxel incoherent motion diffusion-weighted imaging(IVIM-DWI) for the assessment of renal fibrosis in chronic kidney disease (CKD), using histopathology as a reference standard. METHODS: Eighty-five CKD patients and twenty healthy volunteers were recruited in this study.

2018-06-28 · Purpose. IVIM-DW imaging has shown potential usefulness in the study of pancreatic lesions. Controversial results are available regarding the reliability of the measurements of IVIM-derived parameters. The aim of this study was to evaluate the reliability and the diagnostic potential of IVIM-derived parameters in differentiation among focal solid Objectives: Intravoxel incoherent motion diffusion-weighted imaging (IVIM-DWI) is a promising non-invasive imaging technique to detect and grade prostate cancer (PCa). However, the results regarding the diagnostic performance of IVIM-DWI in the characterization and classification of PCa have been inconsistent among published studies. So, T.Y., Ai, Q.H., Lam, W.K.J. et al.

Intravoxel incoherent motion diffusion-weighted MR imaging has value in characterizing the most common solid or cystic malignant tumors in the pancreas, owing to its ability to demonstrate not only Aim: To evaluate the feasibility of using intravoxel incoherent motion (IVIM) to measure diffusion and perfusion parameter variations in stroke. Materials and methods: Thirty-eight stroke patients were enrolled in the study. IVIM imaging was performed using 15 b-values from 0 to 1000 s/mm(2). Intravoxel incoherent motion diffusion-weighted MR imaging of breast cancer: association with histopathological features and subtypes. Kim Y(1), Ko K(1), Kim D(1), Min C(2), Kim SG(3), Joo J(4), Park B(4). Author information: (1)1 Department of Radiology, National Cancer Center, Goyang, Republic of Korea. Intravoxel Incoherent Motion Diffusion-Weighted Imaging of Prostate Cancer In this study, detailed diffusion measurements of normal prostate tissues, BPH, and prostate cancer using multiple b values have been made.
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2018-01-01 2021-01-19 PDF | Background: The aim of this study was to compare intravoxel incoherent motion diffusion weighted imaging (IVIM-DWI) parameters such as standard | Find, read and cite all the research you Background: The aim of this study was to compare intravoxel incoherent motion diffusion weighted imaging (IVIM-DWI) parameters such as standard apparent diffusion coefficient (ADC standard), pure diffusion coefficient (D slow), pseudodiffusion coefficient (D fast) and perfusion fraction (ƒ) for differentiating pancreatic ductal adenocarcinoma (PDAC) with different pathological grades. PURPOSE: To evaluate the diagnostic potential of apparent diffusion coefficient (ADC) and intravoxel incoherent motion (IVIM)-derived parameters for differentiation of common pancreatic tumors, chronic pancreatitis, and normal pancreas and for characterization of the malignancy potential of intraductal papillary mucinous neoplasms (IPMNs). Intravoxel incoherent motion diffusion-weighted imaging for discriminating the pathological response to neoadjuvant chemoradiotherapy in locally advanced rectal cancer 2017-10-01 · Intravoxel incoherent motion diffusion-weighted imaging analysis of diffusion and microperfusion in grading gliomas and comparison with arterial spin labeling for evaluation of tumor perfusion J Magn Reson Imaging , 44 ( 2016 ) , pp.

Research DWI-obtained ADC values are able to look beyond the anatomy in Intravoxel incoherent motion. Cord; Intracranial Abnormalities with Diffusion Restriction; Brain Anatomy by Diffusion-weighted Imaging; Measuring Perfusion: Intravoxel Incoherent Motion;  Implementing the Intra Voxel Incoherent Motion (IVIM) model to analyze diffusion and perfusion in MRI. Developed a Python module for IVIM analysis in Dipy,  1508 dagar, Intravoxel Incoherent Motion in Normal Pituitary Gland: Initial Study with Turbo Spin-Echo Diffusion-Weighted Imaging [HEAD & NECK]. 1508 dagar  det finns kontraindikation för gadoliniumbaserat kontrastmedel. Dessutom är DWI- baserade intravoxel incoherent motion (IVIM)-baserade.
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Intravoxel incoherent motion (IVIM) diffusion-weighted imaging was performed using 12 b values: 0, 10, 20, 30, 40, 50, 80, 100, 200, 400, 800, and 1000 sec/mm2. To calculate IVIM parameters and apparent diffusion coefficient (ADC), 3 regions of interest (ROIs) were placed in the renal cortex and in the medulla, i.e., a total of 6 ROIs were used.

Intravoxel incoherent motion diffusion weighted imaging (IVIM-DWI), with a bi-exponential model, can not only observe the diffusion of tissue water molecules but also reflect the blood perfusion information of tissue microcirculation, compensating for the deficiencies of conventional DWI [15] . Intravoxel incoherent motion (IVIM) imaging is an advanced DWI technique that allows a separate quantitative evaluation of all the microscopic random motion that contributes to DWI, which is essentially represented by molecular diffusion and blood microcirculation (perfusion). 1 Currently, DWI based on single-shot EPI is most commonly used for IVIM imaging. 2,3 However, EPI-DWI is associated Intravoxel incoherent motion diffusion-weighted MR imaging in differentiation of lung cancer from obstructive lung consolidation: comparison and correlation with pharmacokinetic analysis from dynamic contrast-enhanced MR imaging. Eur Radiol 2014; 24: 1914 – 22 doi: 10.1007/s00330-014-3176-z pmid: 24788038 As both intravoxel incoherent motion (IVIM) modeling and dynamic contrast‐enhanced magnetic resonance imaging (DCE‐MRI) provide perfusion parameters, IVIM‐derived perfusion parameters might be expected to correlate with the kinetic features from DCE‐MRI. Purpose Lei Ding, Lianxiang Xiao, Xiangtao Lin, Chunmei Xiong, Lingbo Lin, Shijun Chen, " Intravoxel Incoherent Motion (IVIM) Diffusion-Weighted Imaging (DWI) in Patients with Liver Dysfunction of Chronic Viral Hepatitis: Segmental Heterogeneity and Relationship with Child-Turcotte-Pugh Class at 3 Tesla ", Gastroenterology Research and Practice,.

21 Oct 2017 Guest:Denis Le Bihan, MD, PhD, Neurospin, Gif-sur-Yvette, France and Department of Radiology, Kyoto University Graduate School of 

Abbreviations: ADC = apparent diffusion coefficient, DWI = diffusion-weighted imaging, IVIM = intravoxel incoherent motion, MRI = magnetic resonance imaging, T2WI = T2-weighted imaging. How to cite this article: Bian H, Liu F, Chen S, Li G, Song Y, Sun M, Dong H. Intravoxel incoherent motion diffusion weighted imaging evaluated the response to concurrent chemoradiotherapy in patients with The diagnostic performance of intravoxel incoherent motion diffusion-weighted imaging (IVIM-DWI) in the differential diagnosis of pulmonary tumors remained debatable among published studies. This study aimed to pool and summary the relevant results to provide more robust evidence in this issue using a meta-analysis method. Materials and methods Chapter Outline Principles of Diffusion-Weighted Imaging Observing and Measuring Water Diffusion with Magnetic Resonance Imaging Intravoxel Incoherent Motion Model Technical Considerations Image Acquisition and Sequence Optimization Compensation for Physiologic Motion Choice of b Values Image Interpretation Qualitative Assessment Quantitative Assessment Imaging Artifacts Diagnostic Pitfalls 2019-12-24 · In vivo cardiac diffusion-weighted magnetic resonance imaging: quantification of normal perfusion and diffusion coefficients with intravoxel incoherent motion imaging. Intravoxel incoherent motion imaging (IVIM) is a new magnetic resonance imaging (MRI) technique that can detect both diffusion and pseudo perfusion microscopic tissue information. Intravoxel incoherent motion (IVIM) imaging wasintroduced to assessbothtumor diffusion and perfusion noninvasively by analyzing the signal decay curve obtained from multiple b-value diffusion-weighted imaging (DWI) acquisition to separate the signal intensity arising from a vascular component and that from a nonvascular component [8]. ST REPORTS 163 DOI 1.13srep163 1 www.nature.comscientificreports Intravoxel Incoherent Motion Diffusion-weighted Magnetic Resonance Imaging for Monitoring the Early Response to ZD6474 Eighteen healthy volunteers underwent intravoxel incoherent motion diffusion weighted imaging (IVIM-DWI) scan of the liver twice in 1.5T MR scanner with signed informed consent approved by local ethic committees.

Purpose Lei Ding, Lianxiang Xiao, Xiangtao Lin, Chunmei Xiong, Lingbo Lin, Shijun Chen, " Intravoxel Incoherent Motion (IVIM) Diffusion-Weighted Imaging (DWI) in Patients with Liver Dysfunction of Chronic Viral Hepatitis: Segmental Heterogeneity and Relationship with Child-Turcotte-Pugh Class at 3 Tesla ", Gastroenterology Research and Practice,. vol. 2018, Article ID 2983725, 12 pages, 2018. https Intravoxel incoherent motion (IVIM) diffusion-weighted imaging was performed using 12 b values: 0, 10, 20, 30, 40, 50, 80, 100, 200, 400, 800, and 1000 sec/mm2.