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- W4282941202 abstract "Abstract This article provides an overview of diffusion kurtosis (DKI) imaging in abdominal oncology. DKI allows for more data on tissue structures than the conventional diffusion model (DWI). However, DKI requires high quality images at b -values greater than 1000 s/mm 2 and high signal-to-noise ratio (SNR) that traditionally MRI systems are not able to acquire and therefore there are generally amplified anatomical distortions on the images due to less homogeneity of the field. Advances in both hardware and software on modern MRI scanners have currently enabled ultra-high b -value imaging and offered the ability to apply DKI to multiple extracranial sites. Previous studies have evaluated the ability of DKI to characterize and discriminate tumor grade compared to conventional DWI. Additionally, in several studies the DKI sequences used were based on planar echo (EPI) acquisition, which is susceptible to motion, metal and air artefacts and prone to low SNRs and distortions, leading to low quality images for some small lesions, which may affect the accuracy of the results. Another problem is the optimal b -value of DKI, which remains to be explored and not yet standardized, as well as the manual selection of the ROI, which could affect the accuracy of some parameters." @default.
- W4282941202 created "2022-06-16" @default.
- W4282941202 creator A5016966886 @default.
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- W4282941202 date "2022-06-09" @default.
- W4282941202 modified "2023-10-16" @default.
- W4282941202 title "Diffusion weighted imaging and diffusion kurtosis imaging in abdominal oncological setting: why and when" @default.
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