Contrast-Enhanced Ultrasound Guided Transoral Core Needle Biopsy: A Novel, Safe and Well-Tolerated Procedure for Obtaining High-Quality Tissue in Patients with Oral Cancer.
Ultrasound in medicine & biology(2020)
Abstract
The aim of the prospective study described here was to compare the tolerability, safety and diagnostic value of contrast-enhanced ultrasound-guided transoral core needle biopsy (CEUS-CNB) with that of conventional US-guided transoral CNB (US-CNB) and standard incisional biopsy in patients with oral masses. Between June 2017 and November 2019, consecutive patients with oral masses referred for biopsy were randomly assigned to undergo incisional biopsy, US-CNB or CEUS-CNB. Procedure time, intra‑operative blood loss volume, diagnostic performance and pain level before and after the procedure assessed by visual analogue score (VAS) were recorded and compared among the three procedures. Finally, 238 patients with pathology confirmation were analyzed: 80 patients underwent incisional biopsy, 78 patients US-CNB and 80 patients CEUS-CNB. In this study, no significant difference was found in biopsy time between CEUS-CNB, US-CNB and incisional biopsy (75 ± 11 s vs. 73.6 ± 12 s vs. 77 ± 13 s, p = 0.24). CEUS-CNB achieved the highest sensitivity (CEUS-CNB: 100%, US-CNB: 88.5%, incisional biopsy: 84.3%), negative predictive value (CEUS-CNB: 100%, US-CNB: 81.3%, incisional biopsy: 78.4%) and accuracy (CEUS-CNB: 100%, US-CNB: 92.3%, incisional biopsy: 90%). The VAS score for incision biopsy was higher (p = 0.01) and the amount of bleeding was larger (p < 0.001), yet there was no significant difference between CEUS-CNB and US-CNB. Our results indicate CEUS-guided transoral CNB is an efficient, safe and well-tolerated procedure, with biopsy time comparable to and diagnostic performance better than those of conventional US-guided transoral CNB and incisional biopsy.
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