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DOI: 10.1055/s-2003-38667
High-resolution Ultrasound in Combination with Colour-Doppler Sonography for Preoperative Localization of Parathyroid Adenomas in Patients with Primary Hyperparathyroidism
Hochauflösende Sonographie in Kombination mit der Farbdoppler-Sonographie in der präoperativen Lokalisierung von Nebenschilddrüsenadenomen bei Patienten mit primärem HyperparathyroidismusPublikationsverlauf
eingereicht: 4. Dezember 2002
angenommen: 25. Februar 2003
Publikationsdatum:
16. April 2003 (online)
Abstract
Background & Aims: Experienced surgeons have the highest sensitivity in the localization of parathyroid adenomas in patients with primary hyperparathyroidism. Correct preoperative localization, however, allows unilateral neck exploration with subsequently reduced operative time and complication rate. In this prospective study, we investigated the accuracy of preoperative high-resolution ultrasound in combination with colour-Doppler sonography for the detection of parathyroid lesions. Subjects/Methods: Ninety-eight patients (mean age 59.1 years, range 15-86) who referred to our department with symptomatic primary hyperparathyroidism were included in the study from January 1998 to June 2002. Sonography was performed by experienced examiners. The exact diagnosis was based on surgical findings and histology in all patients. Results: The overall sensitivity for the sonographical localization of the adenomas on the correct side of the neck was 86 %. Twenty-three percent of the adenomas located on the cranial margin of the thyroid gland were diagnosed correctly, as were 92 % of the lesions located caudally (p = 0.0001). The detection of feeding vessels was possible by colour-Doppler sonography in 60 % of the cases. The diagnosis was correct for 93 % of these suspected adenomas. No vessels were detected in the remaining lesions, and only 39 % of these tumours were diagnosed correctly (p = 0.0001). Conclusions: High-resolution ultrasonography by experienced examiners is a highly sensitive procedure for the preoperative diagnosis of parathyroid adenomas in patients with primary hyperparathyroidism. With this method, a unilateral neck exploration is sufficient in about 90 % of the patients. Additionally, detection of feeding vessels by colour-Doppler sonography is an important indication of a parathyroid lesion. Nontheless, the experienced surgeon remains the standard of reference.
Zusammenfassung
Studienziel: Erfahrene Chirurgen haben die höchste Treffergenauigkeit in der Lokalisationsdiagnostik von Nebenschilddrüsenadenomen. Eine korrekte präoperative Lokalisation ermöglicht die unilaterale Halsexploration mit reduzierter Operationszeit und geringerer Komplikationsrate. In dieser prospektiven Studie wurde die Treffergenauigkeit der hochauflösenden Sonographie in Kombination mit der Farbdoppler-Sonographie in der präoperativen Lokalisationsdiagnostik von Nebenschilddrüsenadenomen untersucht. Patienten/Methode: 98 Patienten mit symptomatischem primären Hyperparathyreoidismus im mittleren Alter von 59,1 Jahren (Range 15-86) wurden von Januar 1998 bis Juni 2002 in die Studie eingeschlossen. Die Sonographie wurde von erfahrenen Untersuchern durchgeführt, deren Ergebnisse in allen Fällen mit der Chirurgie und der Histologie verglichen wurden. Resultate: Die Sensitivität für die richtige sonographische Halsseitenzuordnung der Adenome betrug 86 %. 23 % der Läsionen am kranialen Schilddrüsenpol wurden richtig diagnostiziert gegenüber 92 % am kaudalen Pol (p = 0,0001). In 60 % der Fälle war ein Gefäßstiel nachweisbar, dieser Befund war in 93 % richtig. Ohne Gefäßstieldetektion war das Ergebnis nur in 39 % korrekt (p = 0,0001). Schlussfolgerung: Die hochauflösende Sonographie in Kombination mit der Farbdoppler-Sonographie ist in der Hand erfahrener Untersucher hochsensitiv in der präoperativen Lokalisationsdiagnostik von Nebenschilddrüsenadenomen bei Patienten mit primärem Hyperparathyroidismus. Mit dieser Methode ist eine unilaterale Halsexploration in etwa 90 % der Fälle möglich. Der Nachweis eines Gefäßstiels ist ein zusätzliches wichtiges Zeichen für ein Nebenschilddrüsenadenom. Der erfahrene Chirurg bleibt der Goldstandard.
Key words
High-resolution ultrasound - colour-Doppler sonography - preoperative localization of parathyroid adenomas
Schlüsselwörter
Hochauflösende Sonographie - Farbdoppler-Sonographie - Präoperative Lokalisationsdiagnostik von Nebenschilddrüsenadenomen
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S. Rickes, MD
Dept. of Gastroenterology, Hepatology and Endocrinology ·
University Hospital Charité (Campus Mitte)
Schumannstraße 20/21 · 10117 Berlin · Germany
·
Telefon: +49/30450514045
Fax: +49/30450514906
eMail: steffen.rickes@charite.de