[PDF] Top 20 A Search for MRI diffusion coefficient standards
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A Search for MRI diffusion coefficient standards
... 16 The diffusion gradient must be one-dimensional (1D), linear, and well characterized. D is often determined. A detailed scientific description of the PGSE sequence can be very lengthy without analogies. The race ... See full document
52
The utility of diffusion weighted MRI and apparent diffusion coefficient in characterization of breast masses
... conventional MRI with the pathological results, 25 lesions were diagnosed benign by MRI, 6 of them diagnosed pathologically ...by MRI malignant, one of them was proved pathologically as ... See full document
9
Evaluation of Apparent Diffusion Coefficient Values in Spinal Tuberculosis by MRI
... The MRI protocol included T1 sagittal; T2 sagittal and axial; STIR coronal and sagittal and post contrast sagittal and ...The MRI pulse sequence used for DW-MRI was single-shot echo- planar ... See full document
5
Accuracy and Precision of Apparent Diffusion Coefficient and Volume Measurements of MRI of Prostate
... used. Diffusion weighted images was taken with seven different b-values, b = 0, 100, 200, 400, 800, 1000 and 1200 s/mm 2 ...correlation coefficient was calculated as a measure of the fitting of the line to ... See full document
38
Bias in MRI Measurements of Apparent Diffusion Coefficient and Kurtosis: Implications for Choice of Maximum Diffusion Encoding
... water diffusion is non-Gaussian and the expressions used to calculate dif- fusion parameters are approximations which introduce systematic errors depend- ent on the maximum diffusion encoding, ... See full document
15
Correlation of apparent diffusion coefficient ratio on 3.0 T MRI with prostate cancer Gleason score
... Introduction: The purpose was to investigate the usefulness of ADC ratio on Di ff usion MRI to discriminate between benign and malignant lesions of Prostate. Methods: Images of patients who underwent in-gantry ... See full document
6
Apparent Diffusion Coefficient Mapping Using a Multi Shot Spiral MRI Sequence of the Rat Brain
... used diffusion weighted (DW) imaging such as DW spin echo (SE) type echo planar imaging (DW-SE-EPI) is known to be a snapshot-like acquisition and to have a relatively high signal-to-noise ...Spiral MRI ... See full document
12
Apparent Diffusion Coefficient Mapping Using a Multi-Shot Spiral MRI Sequence of the Rat Brain
... the diffusion image contrast effect of the DW-SPIRAL was inferior to the ...the diffusion coefficient of SE-DWI to approach the pub- lished value and achieve a low standard deviation (SD) of the ... See full document
12
Apparent Diffusion Coefficient analysis of encephalitis: A comparative study with topographic evaluation and conventional MRI findings
... For areas with hemorrhage, ROI was not placed and this area was carefully excluded from the area of interest. Involvement of deep brain structures were recorded separately. Follow-up MRI images of the patients ... See full document
6
Does Normalised Apparent Diffusion Coefficient Further Improve the Diagnostic Accuracy of Diffusion-Weighted MRI at 3T in Characterising Breast Masses?
... using the proprietary diffusion analysis software provided by the MR imaging manufacturer (Philips Medical Systems) and the Stejkal and Tanner equation. Qualitative DWI analysis of the 51 breast masses was ... See full document
6
Prostatic abscess and seminal vesicle abscess: MRI findings and quantitative analysis of apparent diffusion coefficient values
... Limitations of our study include the relatively small size of sampling examined by MRI and no biochemical analysis of purulent specimen from abscess to define its correlation- ship with ADC. PA, especial SVA, is ... See full document
6
Risk stratification of prostate cancer utilizing apparent diffusion coefficient value and lesion volume on multiparametric MRI
... Thank you for the prompt review of our manuscript entitled " Risk Stratification of Prostate Cancer Utilizing Apparent Diffusion Coefficient Value and Lesion Volume on Multiparametric Magnetic Resonance ... See full document
29
Prostate MRI: Evaluating tumor volume and apparent diffusion coefficient as surrogate biomarkers for predicting tumor Gleason score
... We acknowledge the following limitations of our study: First, so that we would be able to correlate imaging findings with histopathology, we only included patients who underwent radical prostatectomy, causing a selection ... See full document
32
Reliability and Uncertainty in Diffusion MRI Modelling
... As the results in this thesis also demonstrated, the mathematical structure of the biexponential model meant that for some signal measurements, there were many biexponential parameter combinations that fit a signal ... See full document
181
Original Article Application value of MRI apparent diffusion coefficient (ADC) before and after radical mastectomy for patients with breast cancer
... average diffusion coeffi- cient in three orthogonal directions can effec- tively reflect the movement of water molecules in tissues; higher cell density of tumor tissues can lead to the decrease in water molecule ... See full document
9
Apparent Diffusion Coefficient Value Changes and Clinical Correlation in 90 Cases of Cytomegalovirus Infected Fetuses with Unremarkable Fetal MRI Results
... This work has a few limitations. First, although the CMV and control ADC values statistically differ, the SDs overlap; therefore, no absolute cutoff to distinguish the groups can be used. Never- theless, single patient ... See full document
6
Monitoring Tumor Volume in Patients With Prostate Cancer Undergoing Active Surveillance: Is MRI Apparent Diffusion Coefficient Indicative of Tumor Growth?
... Over a 32-month period June 2011 to Feb 2014, 157 consecutive patients selected for active surveillance who had undergone 2 MRI scans at least 1 year apart were included in this longitudinal cohort study performed ... See full document
23
Reduced Distortion Diffusion MRI of the Craniovertebral Junction
... become standards for evaluating neu- rologic disorders such as acute brain ischemia, intracra- nial lesions, and white matter ...However, diffusion MR imaging has not been so successful in investigating ... See full document
5
Segmentation of MRI Images by Adaptive Degenerate Diffusion
... the coefficient (29), we need to evaluate the absolute value of the gradient on each triangle from the set N i,j (see Figure 2) denoted by G i,j n , n ∈ { 1, ... See full document
10
Diffusion-Weighted MRI and apparent diffusion coefficient value in assessment of intra-medullary spinal cord masses
... of Diffusion-Weighted MRI (DWI) and appar- ent diffusion coefficient value (ADC) in differentiation of intra-medullary spinal cord masses ... See full document
10
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