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DOI: 10.1055/s-0029-1245797
© Georg Thieme Verlag KG Stuttgart · New York
Video Sequence Compared to Conventional Freeze Image Documentation: A Way to Improve the Sonographic Assessment of Breast Lesions?
Vergleich von Videosequenz- zu Standbilddokumentation: Eine Verbesserung der sonografischen Beurteilung von Veränderungen der Brust?Publikationsverlauf
received: 26.1.2010
accepted: 3.9.2010
Publikationsdatum:
03. Februar 2011 (online)
![](https://www.thieme-connect.de/media/ultraschall/201105/lookinside/thumbnails/10.1055-s-0029-1245797-1.jpg)
Zusammenfassung
Ziel: In dieser Studie wurde die in der Mammasonografie übliche Standbilddokumentation mit Videosequenzen zur Dignitätsbeurteilung von Brustbefunden verglichen. Material und Methoden: Digital gespeicherte Standbild- und korrespondierende Videosequenzaufnahmen von 50 Ultraschallbefunden der Brustwurden gemischt und acht in der Mammasonografie erfahrenen Untersuchern zur Beurteilung vorgelegt. Etablierte Ultraschallkriterien wurden zur Beurteilung der Brustbefunde auf einem standardisierten Bogen verwendet. Eine Verblindung bezüglich klinischer und radiologischer Daten, sowie Patientendaten und Histologie fand statt. In der statistischen Analyse wurden die Gruppe der Standbilder mit der der Videosequenzen verglichen und mit der endgültigen Histologie korreliert. Eine Receiver-Operating-Characteristics-Analyse (ROC-Analyse) wurde zur Beurteilung der diagnostischen Leistung durchgeführt. Ergebnisse: Die Brustbefunde wurden in beiden Gruppen nahezu identisch eingeschätzt. Bezüglich der Ultraschallkriterien wurde der echogene Randsaum, die Tumorachse und Tumorbegrenzung unterschiedlich zwischen beiden Gruppen bewertet. Die dynamischen Ultraschallkriterien wie Komprimierbarkeit und Mobilität korrelierten statistisch hoch signifikant mit dem histologischen Ergebnis in der Videosequenzanalyse (p < 0,0001). Die ROC-Analyse zeigte eine nahezu identische Genauigkeit in beiden Gruppen. Schlussfolgerung: Videosequenzen sind eine geeignete Methode zur Dokumentation von Brustbefunden. Entgegen unserer Hypothese konnten jedoch die Videosequenzen die diagnostische Leistung im Vergleich zur konventionellen Standbildtechnik nicht verbessern.
Abstract
Purpose: To compare video sequence and conventional freeze image documentation of breast ultrasound findings with respect to lesion assessment and the diagnostic power of established ultrasound characteristics. Materials and Methods: Digitally stored freeze images and corresponding video sequences of 50 breast lesions were randomly arranged and interpreted by eight investigators with breast ultrasound training and experience. Established ultrasound criteria were documented on a standardized classification form for every lesion. The investigators were blinded to the clinical and radiological findings, patient characteristics including age, and lesion histology. Statistical analysis compared both groups and correlated the results with the lesion histology. A receiver operating characteristics (ROC) analysis was performed to evaluate the diagnostic performance of ultrasound criteria in lesions documented by video sequences compared to freeze images. Results: Breast lesions were assessed almost identically in video sequences and freeze images. Only the features echogenic halo, orientation, and margin varied among both groups. The dynamic features compressibility and mobility were highly statistically significant correlated with the lesion histology in the video sequence interpretation (p < 0.0001). ROC analysis revealed almost identical diagnostic accuracy in both groups (area under the curve 0.719 for video sequences and 0.762 for freeze images). Conclusion: Video sequences are an appropriate tool to document lesions in breast ultrasound. In contrast to our hypothesis, however, this tool did not improve the diagnostic power of established ultrasound characteristics compared to freeze image documentation.
Key words
breast - video sequence documentation - lesion assessment - BI-RADS criteria
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Mrs. Martha Földi
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