Endoscopy
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Comparative Study
Autofluorescence endoscopy versus conventional white light endoscopy for the detection of superficial gastric neoplasia: a prospective comparative study.
Preliminary studies have suggested autofluorescence endoscopy (AFE) to be accurate in the diagnosis of gastric tumors. Our prospective blinded study systematically compared AFE with white light endoscopy (WLE) for the detection of superficial gastric neoplasia. ⋯ Although one quarter of elevated gastric neoplasias were detected only by AFE, its specificity is poor; therefore its clinical value is limited.
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Ultrasonographic elastography is a new technique for describing the mechanical properties of tissue during real-time ultrasonography. The aim of this study was to test the feasibility of this method in endosonography (EUS) of the dorsal mediastinum, and to compare the elastographic patterns of lymph nodes with results from EUS-guided fine-needle aspiration biopsy (FNAB). ⋯ EUS elastography of mediastinal lymph nodes can be performed reliably. The results are good for a noninvasive technique, but they remain inferior to the success rate of EUS-guided FNAB. The method might occasionally be useful for targeting the most suitable lymph nodes for FNAB.