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https://www.readbyqxmd.com/read/29112516/intravoxel-incoherent-motion-analysis-of-abdominal-organs-application-of-simultaneous-multislice-acquisition
#1
Valerie Doan Phi Van, Anton S Becker, Alexander Ciritsis, Caecilia S Reiner, Andreas Boss
PURPOSE: The aim of this study was to systematically evaluate the accuracy of quantitative intravoxel incoherent motion (IVIM) analysis of the upper abdomen applying simultaneous multislice (SMS) diffusion-weighted imaging (DWI) to reduce acquisition time. MATERIALS AND METHODS: Diffusion-weighted imaging of parenchymal abdominal organs was performed in 8 healthy volunteers at 3 T using a standard DWI sequence (acceleration factor 1 [AF1]) and an SMS-accelerated echo planar imaging sequence with acceleration factors 2 and 3 (AF2/AF3)...
November 6, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28454564/intravoxel-incoherent-motion-dwi-of-the-pancreatic-adenocarcinomas-monoexponential-and-biexponential-apparent-diffusion-parameters-and-histopathological-correlations
#2
Chao Ma, Yanjun Li, Li Wang, Yang Wang, Yong Zhang, He Wang, Shiyue Chen, Jianping Lu
BACKGROUND: To investigate the associations between the diffusion parameters obtained from multiple-b-values diffusion weighted imaging (DWI) of pancreatic ductal adenocarcinoma (PDAC) and the aggressiveness and local stage prediction, and assess the values of the quantitative parameters for the discrimination of tumors from healthy pancreas. METHODS: Fifty-one patients with surgical pathology-proven PDAC (size, 35 ± 12 mm) and fifty-seven healthy volunteers were enrolled...
April 28, 2017: Cancer Imaging: the Official Publication of the International Cancer Imaging Society
https://www.readbyqxmd.com/read/27776645/simultaneous-multi-slice-echo-planar-diffusion-weighted-imaging-of-the-liver-and-the-pancreas-optimization-of-signal-to-noise-ratio-and-acquisition-time-and-application-to-intravoxel-incoherent-motion-analysis
#3
Andreas Boss, Borna Barth, Lukas Filli, David Kenkel, Moritz C Wurnig, Marco Piccirelli, Caecilia S Reiner
PURPOSE: To optimize and test a diffusion-weighted imaging (DWI) echo-planar imaging (EPI) sequence with simultaneous multi-slice (SMS) excitation in the liver and pancreas regarding acquisition time (TA), number of slices, signal-to-noise ratio (SNR), image quality (IQ), apparent diffusion coefficient (ADC) quantitation accuracy, and feasibility of intravoxel incoherent motion (IVIM) analysis. MATERIALS AND METHODS: Ten healthy volunteers underwent DWI of the upper abdomen at 3T...
November 2016: European Journal of Radiology
https://www.readbyqxmd.com/read/24089021/diffusion-weighted-magnetic-resonance-imaging-of-the-pancreas-diagnostic-benefit-from-an-intravoxel-incoherent-motion-model-based-3-b-value-analysis
#4
Massimo Concia, Alois M Sprinkart, Arndt-Hendrik Penner, Peter Brossart, Jürgen Gieseke, Hans H Schild, Winfried A Willinek, Petra Mürtz
OBJECTIVES: The objective of this study was to evaluate the diagnostic benefit of an intravoxel incoherent motion (IVIM) model-based characterization of pancreatic masses from diffusion-weighted imaging (DWI) with 3 b values. MATERIALS AND METHODS: This retrospective study had an approval from the institutional review board, and informed patient consent was waived. The 1.5-T DWI data of 42 patients with or without pancreatic disease, acquired by a respiratory-gated spin-echo echo-planar imaging sequence with 3 b values (0, 50, 800 s/mm²), were retrospectively analyzed...
February 2014: Investigative Radiology
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