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Comparison of PET/CT and Ultrasound in Staging of Malignant Melanoma

Malignant Melanoma Clinical Trial

Official title:
Comparison of 18F-2-fluoro-2-deoxy-D-glucose (18F-FDG) PET/CT and Ultrasound in Staging of Patients With Malignant Melanoma: An Analysis in a Single Patient Population

Clinical Trial Summary

This is the first study which evaluates the different staging modalities 18F-2-fluoro-2-deoxy-D-glucose PET/CT (PET/CT) and diagnostic ultrasound (US) in a single patient cohort with malignant melanoma (MM). Previous analyses are ambivalent regarding the modality of choice. These analyses, however, compared separate patient cohorts for each modality.

Inclusion criteria were a primary staging or re-staging of suspected or confirmed MM with one or more PET/CT and/or one or more US. Exclusion criteria were the non-existence of a malignancy or a malignancy other than MM, alone or in combination with an MM.

The analysis includes the calculation of sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and accuracy in a per-patient (PPA), per-examination (PEA) and per-lesion analysis (PLA). This was done individually for PET/CT and US, and in PLA also for the combination of these two radiological modalities. Furthermore, US was divided into US as a whole (wUS), peripheral lymph nodes (pUS) and/or abdomen (aUS).

The principle equivalence of the two imaging modalities is set up as a null hypothesis H0 in all three analyses. As a further null hypothesis H0, the equivalence of the combined application compared to the sole applications of the two imaging modalities is asserted. The aim is the refutation of the null hypothesis H0 by significant differences in sensitivity and specificity.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT04253574
Study type Observational
Source University of Basel
Contact
Status Completed
Phase
Start date September 1, 2014
Completion date September 1, 2018
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