Tissue is the issue?

In the randomized crossover study by Seicean et al., the authors compared endoscopic ultrasound (EUS)-guided fine-needle aspiration (FNA) with or without contrast-enhanced harmonic imaging (CE-EUS) [1]. With the use of CE-EUS, the authors postulated that any necrotic area could be visualized and avoided during FNA, resulting in improved diagnostic accuracy. However, after completion of the study, the authors noted that the diagnostic accuracies...