6533b861fe1ef96bd12c455e

RESEARCH PRODUCT

B-mode versus A-mode ultrasonographic measurements of mucosal thickness in vivo

Bernd D'hoedtR SchulzeDejan ĆUrić

subject

Palate HardMolarmedicine.medical_specialtyAccuracy and precisionUltrasound devicebusiness.industryLimits of agreementMouth MucosaReproducibility of ResultsSignal Processing Computer-AssistedConfidence intervalSurgeryMasticatory forceOtorhinolaryngologyReference ValuesIn vivoHumansMedicineSurgeryOral SurgeryUltrasonographybusinessNuclear medicineGeneral DentistryUltrasonography

description

Abstract Objective: The objective of this study was to compare the measurement accuracy of A-mode and B-mode ultrasonographic assessments of palatal masticatory mucosal thickness in vivo. Study Design: Thickness of palatal masticatory mucosa in the molar region of 50 volunteers was measured once with a B-mode ultrasound device (10 MHz) combined with a standoff for intraoral applications. At identical reading points thickness was also assessed with an A-mode device (5 replicates) and by needle probing for determination of true thickness. Results: On average true thickness ranged between 2.9 and 3.3 mm (95% confidence intervals; median, 3.1 mm). B-mode ultrasonography overestimated truth by 0.19 mm (median) and differed significantly from truth ( P =.008), whereas A-mode ultrasonography slightly underestimated true thickness by –0.05 mm (median). Limits of agreement were wider for A-mode ultrasonography (2.00 mm) than for B-mode ultrasonography (0.88 mm). Conclusions: Because accuracy of 0.2 mm is acceptable for many clinical indications, B-mode and A-mode yield sufficient accuracy for measurements of mucosal thickness. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2002;93:110-7)

yearjournalcountryeditionlanguage
2002-01-24Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology
https://doi.org/10.1067/moe.2002.119465