Macroscopic onsite evaluation using endoscopic ultrasound fine needle biopsy as an alternative to rapid onsite evaluation.
ENDOSCOPY INTERNATIONAL OPEN(2019)
摘要
Background and aims This study aimed to evaluate the performance of Macroscopic On-site Evaluation (MOSE) using a novel endoscopic ultrasound (EUS) fine needle biopsy (FNB) needle (22-G Franseen-tip needle, Acquire, Boston Scientific Incorporated, Boston, Massachusetts, United States), and without using Rapid On-Site Evaluation (ROSE). Method Between May 2016 and August 2016, all consecutive patients referred to our center for EUS tissue acquisition (TA) for solid lesions underwent EUS-FNB with the 22-G Franseen-tip needle unless contra-indicated. The operator performed MOSE. If no macroscopic core was visualized, a second pass was performed. The final diagnosis was defined as unequivocal histology from EUS-TA with compatible 18 months follow-up, surgical resection, or both. We retrospectively analyzed the performance of MOSE. Results A total of 46 consecutive patients was included, and 54 solid lesions were biopsied. The endosonographer visualized core tissue in 93% (50/54) of targets with a single pass, of which the pathologist confirmed histologic core fragments in 94% (47/50). Four lesions required two passes, and the overall correlation between MOSE and histologic core fragments was 94% (48/51). Diagnostic adequacy was 98% (53/54) with one biliary target biopsied without significant material. The overall diagnostic accuracy was 94%. Sensitivity, specificity, positive predictive value, and negative predictive value for malignancy were 92%, 100%, 100%, and 81%, respectively. No adverse events were reported. Conclusion Our study demonstrated that MOSE using the 22-G Franseen-tip needle could limit needle passes by accurately estimating histologic core fragments. It also demonstrated that high diagnostic adequacy and accuracy of >90% could be achieved without ROSE.
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