Abstract:
AIM:The American thyroid association (ATA) recommends that additional imaging procedures supplement cervical ultrasonography (US) in any patient with a basal calcitonin value above 150 pg/ml in the follow-up of medullary thyroid carcinoma (MTC). The aim of the present study was to reaffirm or challenge this cut-off for 18-Fluorine-Fluorodihydroxyphenylalanine positron emission tomography (18F-DOPA PET) and conventional imaging ultrasonography (US), computed tomography (CT), magnetic resonance imaging (MRI)). MATERIALS AND METHODS:Thirty-nine patients (18 females, 21 males), mean age 62 years, range from 35 to 86, followed-up for MTC were included in the present retrospective study. In our patients 64 18F-DOPA scans, 28 neck US, 28 CT and 8 MRI were performed. For all cases basal calcitonin values were available. Sensitivity and specificity of 18F-DOPA PET and conventional imaging (US, CT, MRI) related to calcitonin values were calculated. RESULTS:According to the calcitonin cut-off of 150 pg/ml, we found the following sensitivities and specificities: 79% and 80% for 18F-DOPA PET, 75% and 92% for US, 80% and 25% for CT, 50% and 75% for MRI. Taking the level of detectable calcitonin, we calculated the following sensitivities: 52% for 18F-DOPA PET, 46% for US, 79% for CT and 38% for MRI. CONCLUSION:We cannot confirm the calcitonin cut-off proposed by the ATA for the detection of MTC recurrences and contemporaneously we cannot state that 18F-DOPA PET has a very high sensitivity. For the neck region 18F-DOPA PET and US showed similar results. 18F-DOPA PET/CT seems to be the best imaging modality for whole-body tumor detection. Bone metastases are best detected by MRI.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Sesti A,Mayerhoefer M,Weber M,Anner P,Wadsak W,Dudczak R,Haug A,Karanikas Gsubject
Has Abstractpub_date
2014-11-01 00:00:00pages
6647-54issue
11eissn
0250-7005issn
1791-7530pii
34/11/6647journal_volume
34pub_type
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journal_title:Anticancer research
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abstract::Malignant gliomas are often treated with cisplatin (cis-diamminedichloroplatinum(II), CDDP) and radiation but results remain unsatisfactory. To investigate whether CDDP induces radioresistance in glioma, T98G human glioblastoma cells were pretreated 5 times with 10(-6)M CDDP for 24 hours and then the sensitivity of wi...
journal_title:Anticancer research
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abstract::Cathepsin B (CB) is involved in degradation of extracellular matrix proteins during tumor progression in human solid organ tumors (such as colorectal, bladder, and breast cancers), including human prostate cancer. Its activities are regulated by endogenous inhibitors (such as stefins or cystatins). Increased expressio...
journal_title:Anticancer research
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pub_type: 临床试验,杂志文章
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journal_title:Anticancer research
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doi:
更新日期:2002-07-01 00:00:00
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journal_title:Anticancer research
pub_type: 杂志文章
doi:
更新日期:1994-05-01 00:00:00
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pub_type: 杂志文章
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更新日期:2012-01-01 00:00:00
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doi:
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doi:
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journal_title:Anticancer research
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doi:
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journal_title:Anticancer research
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journal_title:Anticancer research
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journal_title:Anticancer research
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journal_title:Anticancer research
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