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首页> 外文期刊>erciyes medical journal >Diffusion-Weighted Imaging of the Parotid Gland: Can the Apparent Diffusion Coefficient Discriminate Between Normal and Abnormal Parotid Gland Tissues?
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Diffusion-Weighted Imaging of the Parotid Gland: Can the Apparent Diffusion Coefficient Discriminate Between Normal and Abnormal Parotid Gland Tissues?

机译：Diffusion-Weighted Imaging of the Parotid Gland: Can the Apparent Diffusion Coefficient Discriminate Between Normal and Abnormal Parotid Gland Tissues?

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Objective: This study attempted to investigate the importance of diffusion weighted (DW)-echo planar imaging (EPI) in the characterization of normal parotid glands to facilitate the early detection of abnormal changes. Materials and Methods: This study was conducted between July 2014 and January 2016. Seventy-three patients were assessed by conventional and diffusion weighted Magnetic Resonance Imaging (MRI). Diffusion weighted MRI was performed by a singleshot spin echo (SE) echo planar imaging (EPI) sequence using b-values of 0, 500, and 1000. The Apparent Diffusion Coefficient (ADC) was automatically generated on the operating console. Results: The mean apparent diffusion coefficients (ADCs) +/- SD of the superficial lobes were 0.89x10(-3)+/- 0.2x10(-3) and 0.9x10(-3)+/- 0.17x10(-3) mm(2)/s in the right and left sides, respectively. The mean ADCs of the deep lobes were 1.02x10(3)+/- 0.27x10(-3) and 0.97x10(-3)+/- 0.27x10(-3) mm(2)/s in the right and left sides, respectively. The mean ADCs of the deep lobes were 1.02x10(-3)+/- 0.27x10(-3) and 0.97x10(-3)+/- 0.27x10(-3) mm(2)/s in the right and left sides, respectively. The mean +/- SD ADC of a normal parotid gland was 1.12x10(-3)+/- 0.12x10(-3) mm(2)/s. The mean +/- SD ADCs of benign and malignant tumors were 1.16x10(-3)+/- 0.31x10(-3) mm(2)/s and 0.82x10(-3) mm(2)/s, respectively. Conclusion: The evaluation of the morphological characteristics of the parotid glands along with the Diffusion-weighted imaging (DWI) signal and ADC measurement may be valuable for detecting early pathological changes.

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