Sensitivity of endoscopic ultrasound in detecting small gastrointestinal neuroendocrine tumours

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Introduction: Small gastrointestinal neuroendocrine tumours (GI-NETs) are often difficult to detect using conventional imaging modalities, leading to delayed diagnosis and suboptimal treatment outcomes. Endoscopic ultrasound (EUS) has emerged as a promising tool for the early detection and precise localisation of these tumours. However, its sensitivity in identifying small lesions remains to be thoroughly evaluated.

Aim(s): To assess the sensitivity of EUS in the detection of small (≤10 mm) gastrointestinal neuroendocrine tumours and compare its diagnostic performance with other imaging techniques.

Materials and methods: We conducted a prospective study involving 120 patients with a high clinical suspicion of GI-NETs, confirmed by histopathology. All patients underwent EUS, alongside standard imaging modalities such as computed tomography (CT) and magnetic resonance imaging (MRI). The primary outcome measure was the sensitivity of EUS in detecting tumours ≤10 mm. Secondary outcomes included lesion localisation accuracy and diagnostic yield compared to CT and MRI.

Conference:

Presenting Author:

Authors: Xu L, Ye M, Xue B, Tang Q,

Keywords: Endoscopic ultrasound, small gastrointestinal neuroendocrine tumour, early detection, imaging modalities,