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您的检索式：作者名="PENG Yangdi"
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| 1 | Multi-frequency magnetic resonance elastography of the pancreas:measurement reproducibility and variance among healthy volunteers显示文摘Background Patients with chronic pancreatitis often have irreversible pancreatic insufficiency before a clinical diagnosis.Pancreatic cancer is a fatal malignant tumor in the advanced stages.Patients having high risk of pancreatic diseases must be screened early to obtain better outcomes using new imaging modalities.Therefore,this study aimed to investigate the reproducibility of tomoelastography measurements for assessing pancreatic stiffness and fluidity and the variance among healthy volunteers.Methods Forty-seven healthy volunteers were prospectively enrolled and underwent two tomoelastography examinations at a mean interval of 7 days.Two radiologists blindly and independently measured the pancreatic stiffness and fluidity at the first examination to determine the reproducibility between readers.One radiologist measured the adjacent pancreatic slice at the first examination to determine the reproducibility among slices and measured the pancreas at the second examination to determine short-termrepeatability.The stiffness and fluidity of the pancreatic head,body,and tail were compared to determine anatomical differences.The pancreatic stiffness and fluidity were compared based on sex,age,and body mass index(BMI).Results Bland–Altman analyses(all P>0.05)and intraclass correlation coefficients(all>0.9)indicated near perfect reproducibility among readers,slices,and examinations at short intervals.Neither stiffness(P=0.477)nor fluidity(P=0.368)differed among the pancreatic anatomical regions.The mean pancreatic stiffness was 1.45±0.09 m/s;the mean pancreatic fluidity was 0.83±0.06 rad.Stiffness and fluidity did not differ by sex,age,or BMI.Conclusion Tomoelastography is a promising and reproducible tool for assessing pancreatic stiffness and fluidity in healthy volunteers. | Si-Ya Shi Liqin Wang Zhenpeng Peng Yangdi Wang Zhi Lin Xuefang Hu Jiaxin Yuan Li Huang Shi-Ting Feng Yanji Luo | 2022 | Gastroenterology Report2022，10，1： | 0 |
| 2 | Tourism Development of the Dong Villages in Tongdao Dong Nationality Autonomous County显示文摘This paper introduced unique ethnic customs in Tongdao Dong Nationality Autonomous County, analyzed the current situation and problems of local tourism development, proposed the government-dominated development concept, the construction of benefi t-sharing mechanism, the integration of tourism resources, and the promotion of scenic areas' attraction, so as to push forward tourism development of the Dong villages, and further enhance the co-development of local economy and society. | YUAN Min ZHU Wenwen PENG Yangdi | 2015 | Journal of Landscape Research2015，7，6： | 0 |
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