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Inter-observer Variation in Gross Tumor Delineation of Esophageal Cancer on MR, CT and PET CT

Esophageal Cancer Clinical Trial

Official title:
Inter-observer Variation in Gross Tumor Delineation of Esophageal Cancer on MR, CT and PET CT

Clinical Trial Summary

The aim of the study is to investigate inter-observer variation in gross tumor volume (GTV) delineation of oesophageal cancer on different imaging modalities - CT, PET CT and MR.Twenty-three consecutive patients with esophageal cancer treated with preoperative or curative chemoradiotherapy were selected. All patients had CT, PET CT and MR imaging in treatment position prior to radiotherapy.Five experienced observers from our institution will independently delineate GTV on CT alone, MR alone, PET CT alone, on co-registered CT and MR and co-registered PET CT and MR. Inter-observer agreement, expressed in generalized conformity index (CIgen) and mean volumes of GTV will be calculated per patient and imaging modality.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT05611658
Study type Observational
Source Institute of Oncology Ljubljana
Contact
Status Active, not recruiting
Phase
Start date May 20, 2020
Completion date September 2023
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