Secondary Malignant Neoplasm of Lymph Node Clinical Trial
Official title:
Tissue Characterisation Using Ultrasound Based Strain Imaging(Elastography)Examining Lesions in the Gastrointestinal Wall, Adjacent Lymph Nodes and Pancreatic Lesions
In this single centre study we study the use of endoscopic ultrasonography (EUS) combined with elastography in order to separate malignant tissue from benign tissue in and adjacent to the upper gastrointestinal tract.
The purpose of this study is to use endoscopic ultrasonography (EUS) with strain based
elastography to identify strain traits separating malignant from benign lesions. We are
registering feasibility of endoscopic strain imaging and compare diagnostic accuracy of EUS
+ elastography with previous data on EUS alone.
Inclusion criteria:
- Group 1: Focal subepithelial lesions in esophageal, ventricular or duodenal wall
discovered by endoscopy or other imaging modality.
- Group 2: Pancreatic lesion discovered by other imaging modality.
- Group 3: Mediastinal or retroperitoneal lymph node or tumor discovered by other imaging
modality.
Histology of lesions should not be known at the time of examination. EUS elastography
findings are evaluated shortly after the examination and categorised by different methods;
categorical score, VAS, Strain Ratio. The result is then compared to histology or cytology
results. Patients who do not undergo tissue sampling are followed up to discover disease
progress.
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Observational Model: Case-Only, Time Perspective: Prospective
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