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- W2374543392 abstract "Objective To evaluate the plain and dynamic enhanced MRI appearance of radiation-induced hepatic injury after three-dimensional conformal radiotherapy.Materials and Methods The plain and dynamic enhanced MRI images of 26 patients with hepatocellular carcinomas after hepatic irradiation were retrospectively reviewed. The T_1WI, T_2WI intensity and dynamic enhanced patterns of hepatic irradiation were observed, the interval between completion of radiotherapy and the appearance of different types of MR findings were calculated and compared the statistical difference.Results The irradiatied area of the liver was hypointensity on T_1WI images in 49 cases and isointensity on T_1WI images in 5 cases, the mean interval was (82±38), (38±12) days respectively. The irradiated area of the liver was hyperintensity on T_2WI images in 46 cases and isointensity in 8 cases, the mean interval was (98±43), (26±18) days respectively. In contrast enhanced dynamic studies, no enhancement in arterial and portal phase (type Ⅰ) was 10 cases, slight enhancement in arterial phase (type Ⅱ) was 12 cases, markedly enhancement in arterial and portal phase (type Ⅲ) was 32 cases, the interval between completion of radiotherapy and the appearance of different types of dynamic enhancement images was (32±18), (92±35), (110±72) days respectively. The difference in interval between type Ⅰ and type Ⅱ, type Ⅲ was significant. The difference in interval between type Ⅱ and type Ⅲ findings was no significant.Conclusion Dynamic enhanced and unenhanced MR imaging can reflect the pathological background of radiation-induce hepatic injuries in every phases and have important value in the differentiation of different phases of radiation-induce hepatic injuries." @default.
- W2374543392 created "2016-06-24" @default.
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- W2374543392 date "2005-01-01" @default.
- W2374543392 modified "2023-09-23" @default.
- W2374543392 title "The Dynamic Enhanced MR Image Appearance of Postirradiated Livers" @default.
- W2374543392 hasPublicationYear "2005" @default.
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