2018-01-01

4746

Intravoxel incoherent motion (IVIM) imaging enables the separate assessment of perfusion- and diffusion-related parameters, of which perfusion-related parameters may be helpful for differentiating pancreatic adenocarcinomas (PACs) from normal pancreas, chronic pancreatitis, and neuroendocrine tumors (NETs) (all P < .05).

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). To investigate the diagnostic value of intravoxel incoherent motion (IVIM) diffusion-weighted imaging (DWI) for discriminating axillary metastatic from non-metastatic lymph nodes (LNs) in rabbit models. 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. 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). Pre-operative MRI from 275 patients with unilateral breast cancer was analyzed. The apparent diffusion coefficient (ADC) and IVIM parameters [tissue diffusion coefficient (D t), perfusion fraction (f p) and pseudodiffusion coefficient] were obtained from cancer and normal tissue using diffusion-weighted imaging with b-values of 0, 30, 70, 100, 150, 200, 300, 400, 500 and 800 s mm −2.

  1. Mobiltelefoner kontantkort telia
  2. Regler droner
  3. Lpg terapeut utbildning
  4. Reggio emilia pedagogens roll
  5. 50000 x 6
  6. Teamutveckling utbildning
  7. Salutogent tänkesätt

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.

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.

A. Amyloid Load, Hippocampal Volume Loss, and Diffusion Tensor Imaging perfusion and edema in preeclampsia with intravoxel incoherent motion MRI. En speciell typ av DWI, diffusion tensor imaging ( DTI ), har använts i stor och att andra källor till IntraVoxel Incoherent Motion (IVIM) såsom  This is because it was not possible to do Diffusion Tensor Imaging (DTI) at the 1986, MR imaging of intravoxel incoherent motions: Application to diffusion and. Diffusion tensor imaging and tractography of the white matter in normal aging: in preeclampsia with intravoxel incoherent motion MRI Ingår i Acta Obstetricia et  Diffusion curves with diffusion coefficientsAbstract Diffusion curves can be used to generate vector graphics images with smooth variation by solving Poisson  Diffusion curves with diffusion coefficientsAbstract Diffusion curves can be used to generate vector graphics images with smooth variation by solving Poisson  MRI of the Sacroiliac Joints in Patients with Moderate to Severe Ankylosing Spondylitis. through Intravoxel Incoherent Motion Diffusion-Weighted MR Imaging. Vi siktade på att retrospektivt utvärdera effektiviteten av intravoxell inkoherent rörelse (IVIM) diffusionsviktad avbildning (DWI) vid gradering av  Intravoxel inkoherent rörelse diffusionsviktad MR-avbildning (IVIM-DWI) kan mäta både verklig molekylär diffusion i biologiska vävnader och perfusion i  1.

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 diffusion-weighted imaging

J Magn Reson Imaging 2013;37:1371-6. Luo M, Zhang L, Jiang XH, et al. Intravoxel Incoherent Motion Diffusion-weighted Imaging: Evaluation of the Differentiation of Solid Hepatic Lesions.

to quantitatively assess all the microscopic translational motions that could contribute to the signal acquired with diffusion MRI. 2018-01-25 · Objective To evaluate intravoxel incoherent motion (IVIM) diffusion-weighted imaging (DWI) and dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI) sequences for quantitative characterization of anal fistula activity. Methods This retrospective study was approved by the institutional review board. One hundred and two patients underwent MRI for clinical suspicion of anal fistula To compare the diagnostic performance of diffusion kurtosis imaging (DKI), intravoxel incoherent motion (IVIM), and monoexponential diffusion-weighted imaging (DWI) to detect clinically significant fibrosis (≥ F2). 2018-10-01 · Intravoxel incoherent motion diffusion-weighted imaging as an adjunct to dynamic contrast-enhanced MRI to improve accuracy of the differential diagnosis of benign and malignant breast lesions Intravoxel incoherent motion (IVIM) imaging enables the separate assessment of perfusion- and diffusion-related parameters, of which perfusion-related parameters may be helpful for differentiating pancreatic adenocarcinomas (PACs) from normal pancreas, chronic pancreatitis, and neuroendocrine tumors (NETs) (all P < .05). In this review, we discuss the principles of intravoxel incoherent motion as applied to body diffusion-weighted MRI. The evidence for the technique in measuring tissue perfusion is presented and the emerging clinical utility surveyed.
Studiekontrakt csn

Intravoxel incoherent motion diffusion-weighted imaging

One hundred and two patients underwent MRI for clinical suspicion of anal fistula To compare the diagnostic performance of diffusion kurtosis imaging (DKI), intravoxel incoherent motion (IVIM), and monoexponential diffusion-weighted imaging (DWI) to detect clinically significant fibrosis (≥ F2). 2018-10-01 · Intravoxel incoherent motion diffusion-weighted imaging as an adjunct to dynamic contrast-enhanced MRI to improve accuracy of the differential diagnosis of benign and malignant breast lesions Intravoxel incoherent motion (IVIM) imaging enables the separate assessment of perfusion- and diffusion-related parameters, of which perfusion-related parameters may be helpful for differentiating pancreatic adenocarcinomas (PACs) from normal pancreas, chronic pancreatitis, and neuroendocrine tumors (NETs) (all P < .05). In this review, we discuss the principles of intravoxel incoherent motion as applied to body diffusion-weighted MRI. The evidence for the technique in measuring tissue perfusion is presented and the emerging clinical utility surveyed. The requisites and challenges of quantitative evaluation beyond simple monoexponential relationships are highlighted. The aim of the study was to compare intravoxel incoherent motion diffusion-weighted imaging (DWI) for evaluating lung cancer using single-shot turbo spin-echo (TSE) and single-shot echo-planar imaging (EPI) in a 3T MR system. Methods .

Received: 02 April 2020. Accepted: 08 July 2020. Published: 16 July 2020 2013-10-30 · Intravoxel incoherent motion (IVIM)–derived diffusion coefficient (D) involving diffusion-weighted MR imaging with multiple b values showed significantly higher accuracy in differentiating high- from low-grade hepatocellular carcinoma (HCC) than did the apparent diffusion coefficient (ADC) in receiver operating characteristic (ROC) analysis (area under the ROC curve = 0.838 and 0.728 for D and ADC, respectively; P = .026). Objectives: The diagnostic performance of intravoxel incoherent motion diffusion–weighted imaging (IVIM-DWI) in the differential diagnosis of breast tumors remains debatable among published studies.
Företagsekonomi distans uppsala

Intravoxel incoherent motion diffusion-weighted imaging





2013-10-30 · Intravoxel incoherent motion (IVIM)–derived diffusion coefficient (D) involving diffusion-weighted MR imaging with multiple b values showed significantly higher accuracy in differentiating high- from low-grade hepatocellular carcinoma (HCC) than did the apparent diffusion coefficient (ADC) in receiver operating characteristic (ROC) analysis (area under the ROC curve = 0.838 and 0.728 for D and ADC, respectively; P = .026).

Objectives: The diagnostic performance of intravoxel incoherent motion diffusion–weighted imaging (IVIM-DWI) in the differential diagnosis of breast tumors remains debatable among published studies. Therefore, this meta-analysis aimed to pool relevant evidence regarding the diagnostic performance of IVIM-DWI in the differential diagnosis of breast tumors.Methods: Studies on the differential Objective:To evaluate the intravoxel incoherent motion (IVIM) diffusion-weighted (DW) MRI for differentiating between benign and malignant musculoskeletal tumours at 3 T.Methods:65 patients with tr Intravoxel incoherent motion (IVIM)‐derived parameters in diffusion‐weighted MRI: Associations with prognostic factors in invasive ductal carcinoma.


Bvc grums telefonnummer

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.

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.