Ultraschall Med 2023; 44(03): e148-e156
DOI: 10.1055/a-1700-1757
Technical Development

Ultrasonography in the Assessment of Tumors of the Cheek: Water Mouth Distension Technique

Ultraschall bei der Beurteilung von Tumoren der Wange: Die Wasser-Mund-Distensionstechnik
1   Radiology Institute, University of Sao Paulo Hospital of Clinics, São Paulo, Brazil (Ringgold ID: RIN117265)
,
1   Radiology Institute, University of Sao Paulo Hospital of Clinics, São Paulo, Brazil (Ringgold ID: RIN117265)
,
Raquel Ajub Moyses
2   Department of Surgery; Laboratory of Head and Neck Surgery LIM-28, University of Sao Paulo Hospital of Clinics, São Paulo, Brazil (Ringgold ID: RIN117265)
,
3   Independent Science Consultant, Celine Pompeia, São Paulo, Brazil
,
Marcos Roberto Tavares
4   Head and Neck Surgery Department, University of Sao Paulo Hospital of Clinics, São Paulo, Brazil (Ringgold ID: RIN117265)
,
Giovanni Guido Cerri
1   Radiology Institute, University of Sao Paulo Hospital of Clinics, São Paulo, Brazil (Ringgold ID: RIN117265)
› Author Affiliations

Abstract

Purpose To describe a new B-mode ultrasound examination technique to assess cheek tumors.

Materials and Methods 30 cheek oral cavity lesions of different histological types (11 benign and 19 malignant) from 23 patients (11 women and 12 men, 7–82 years old, mean age of 49.5 years) were analyzed. Transcutaneous oral B-mode ultrasound (5–12 MHz transducer) was carried out in two stages. Initially it was performed conventionally with an empty mouth. Next, the patient was asked to keep their oral cavity filled with water (like when using a mouthwash) during imaging for the new test examination technique. The anatomical layers of this region and the characteristics of the tumors were evaluated. Lesions were classified as ill defined, partially defined, or defined. Conventional findings were compared to those of the new technique using the Wilcoxon signed-rank test. Ultrasound results were compared to histological findings analyzed by an independent team.

Results The conventional empty mouth technique was able to confidently define lesion extension in only 6 of the 30 lesions, while the water-filled mouth technique was able to confidently define lesion extension in 29 of the 30 lesions (p<0.00001).

Conclusion We present a novel technique that dramatically improves ultrasound staging of cheek oral cavity tumors. In addition to the increase in ultrasound accuracy, this technique does not require any special equipment or extra cost, is very well tolerated by patients, and thus should be considered in the evaluation of every patient undergoing transcutaneous cheek ultrasound for oral cavity lesion characterization.

Zusammenfassung

Ziel Beschreibung einer neuen B-Modus-Ultraschall-Untersuchungstechnik zur Beurteilung von Tumoren der Wange.

Material und Methoden 30 Wangen-Mundhöhlenläsionen unterschiedlichen histologischen Typs (11 benigne und 19 maligne) von 23 Patienten (11 Frauen und 12 Männer, 7–82 Jahre alt, Durchschnittsalter 49,5 Jahre) wurden analysiert. Der transkutane orale B-Modus-Ultraschall (5–12 MHz-Schallkopf) wurde in 2 Stufen durchgeführt. Zunächst wurde er konventionell mit leerem Mund durchgeführt. Anschließend wurde der Patient gebeten, seine Mundhöhle während der Bildgebung für die neue Untersuchungstechnik mit Wasser gefüllt zu halten (wie bei Anwendung einer Mundspülung). Die anatomischen Schichten dieser Region und die Tumormerkmale wurden bewertet. Die Läsionen wurden klassifiziert als schlecht definiert, teilweise definiert oder definiert. Die herkömmlichen Befunde wurden mit denen der neuen Technik mittels Wilcoxon-Vorzeichen-Rang-Test verglichen. Die Ultraschall-Ergebnisse wurden mit den histologischen Befunden verglichen, die von einem unabhängigen Team analysiert wurden.

Ergebnisse Die herkömmliche Methode mit leerem Mund konnte die Läsionsausdehnung nur bei 6 der 30 Läsionen sicher definieren, während die Methode mit wassergefülltem Mund die Läsionsausdehnung bei 29 der 30 Läsionen sicher definieren konnte (p<0,00001).

Schlussfolgerung Wir stellen eine neue Technik vor, die das Ultraschall-Staging von Tumoren der Wange in der Mundhöhle deutlich verbessert. Neben der höheren Ultraschallgenauigkeit erfordert diese Methode keine spezielle Ausrüstung oder zusätzliche Kosten, wird von den Patienten sehr gut vertragen und sollte daher bei der Beurteilung jedes Patienten, der sich einer transkutanen Ultraschall-Untersuchung der Wange zur Charakterisierung von Mundhöhlenläsionen unterzieht, in Betracht gezogen werden.



Publication History

Received: 12 August 2020

Accepted after revision: 27 October 2021

Article published online:
26 April 2022

© 2022. Thieme. All rights reserved.

Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany

 
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