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- W2361501583 abstract "Objective To discuss the clinical value of nuclear imaging techniques (FDG PET) to monitor and to define residue or recurrences tumors from non operative treatment for solid malignant tumors and nasopharyngeal carcinoma. Methods 21 cases of abdominal solid tumors treated by high intensity focused ultrasound (HIFU) and 14 cases of post radiotherapy nasopharyngeal carcinoma were imaged using FDG PET, CT and/or MRI in same period. The results of FDG PET were prospectively evaluated and compared with CT and MRI. Results In group of solid tumors treated by HIFU, CT or MRI showed remarkably density or intensity changing without decreased in tumor size in 19 cases. But on FDG PET scans, there were dense FDG uptake in some center or peripheral zone of tumor which indicating partial tumor residue in 17 cases. Other 4 cases of totally necrosis were diagnosed by FDG PET after HIFU, in which CT showed no remarkably changes, based on FDG metabolism. In group of post radiotherapy nasopharyngeal carcinoma, FDG PET scans depicted 3 cases of tumor recurrences in 11 patients, in which CT or MRI showed no remarkably abnormalities, based on significantly increased FDG metabolism. And in other 2 cases of tumor recurrences, CT or MRI and FDG PET had consonant results. Another one case of post radiotherapy cerebral necrosis missed as tumor intracranial involvement on MRI showed FDG uptake defect at all. Conclusion FDG PET has demonstrated powerful advantages in characterizing and monitoring lesions for differentiating recurrent disease from treatment effects in abdominal solid tumors treated by HIFU and post radiotherapy nasopharyngeal carcinoma." @default.
- W2361501583 created "2016-06-24" @default.
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- W2361501583 date "2002-01-01" @default.
- W2361501583 modified "2023-09-23" @default.
- W2361501583 title "Clinical value of FDG PET imaging in monitoring non-operative treatment effects for malignant tumors" @default.
- W2361501583 hasPublicationYear "2002" @default.
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