{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,27]],"date-time":"2025-10-27T16:20:23Z","timestamp":1761582023303},"reference-count":25,"publisher":"Georg Thieme Verlag KG","issue":"05","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Tierarztl Prax Ausg K Kleintiere Heimtiere"],"published-print":{"date-parts":[[2020,10]]},"abstract":"<jats:title>Zusammenfassung<\/jats:title><jats:p>Gegenstand und Ziel Ziel dieser prospektiven Pilotstudie war zu beurteilen, ob die physiologische Glandula parathyroidea beim Hund computertomografisch dargestellt werden kann, und eine Beschreibung ihres CT-Erscheinungsbildes zu geben.<\/jats:p><jats:p>Material und Methoden In die Studie wurden 25\u2005Hunde aufgenommen, bei denen aufgrund von Erkrankungen im Halsbereich ohne Bezug zu Schild- oder Nebenschilddr\u00fcse ein CT-Scan erfolgte. Einschlusskriterium waren unauff\u00e4llige Befunde bei der allgemeinen klinischen Untersuchung und der Blutuntersuchung (Blutbild und blutchemische Analyse). CT-Bilder vor und nach Kontrastmittelapplikation (30\u201345\u2005Sekunden nach der Kontrastmittelinjektion, fr\u00fche ven\u00f6se Phase) wurden mit einem 16-Schichten-Spiral-CT unter Verwendung eines Field of View von 18\u2005cm, einer Schichtdicke von 1\u2005mm und einer Matrix von 512\u2005\u00d7\u2005512 angefertigt. Zwei Radiologen begutachteten die CT-Aufnahmen unabh\u00e4ngig voneinander. Die Sichtbarkeit der Parathyreoidea wurde erfasst und die Interobserver-Reliabilit\u00e4t ermittelt. Bei den darstellbaren Nebenschilddr\u00fcsen wurden folgende Parameter bestimmt: Gr\u00f6\u00dfe, Dichte (in Hounsfield Units [HU], vor und nach Kontrastmittelgabe), Dichte der Schilddr\u00fcse, Abgrenzung (exzellent, m\u00e4\u00dfig, schlecht).<\/jats:p><jats:p>Ergebnisse Nur 20 bzw. 25\u2005Nebenschilddr\u00fcsen waren durch die beiden Untersucher erkennbar. Die Anzahl differierte zwischen Nativaufnahmen und Bildern nach Kontrastmittelgabe nicht. Die Interobserver-Reliabilit\u00e4t hinsichtlich der Erkennbarkeit war moderat (\u03ba\u2005=\u20050,40). F\u00fcr L\u00e4nge, Breite und H\u00f6he der Nebenschilddr\u00fcsen (Mittelwert\u2005\u00b1\u2005Standardabweichung) ergaben sich 4,2\u2005\u00d7\u20052,5\u2005\u00d7\u20052,9\u2005mm\u2005\u00b1\u20051,3\u2005\u00d7\u20050,8\u2005\u00d7\u20051,0\u2005mm. Die Dichte betrug 39,7\u2005\u00b1\u200520,6\u2005HU vor und 103,1\u2005\u00b1\u200547,1\u2005HU nach Kontrastmittelgabe. Damit stellten sich die Nebenschilddr\u00fcsen im Vergleich zur Schilddr\u00fcse (vor und nach Kontrastmittelgabe 166,7\u2005\u00b1\u200534,3\u2005HU bzw. 234,0\u2005\u00b1\u200560,1\u2005HU) hypoattenuierend dar.<\/jats:p><jats:p>Schlussfolgerung Diese Studie liefert die erste Beschreibung des CT-Erscheinungsbilds der angenommen physiologischen Nebenschilddr\u00fcse beim Hund. Die Sichtbarkeit des Organs war jedoch schlecht.<\/jats:p><jats:p>Klinische Relevanz Trotz der schlechten Visualisierung der Nebenschilddr\u00fcse im CT ist sie gelegentlich wahrnehmbar. Die ermittelten Dimensionen waren teilweise gr\u00f6\u00dfer als bisher f\u00fcr sonografische Darstellung beschrieben, ohne dass die untersuchten Hunde erkennbare Symptome eines Hyperparathyreodismus aufwiesen. Eine computertomografisch sichtbare Nebenschilddr\u00fcse impliziert daher m\u00f6glicherweise nicht unbedingt eine Erkrankung. Weitere Studien dazu sind notwendig.<\/jats:p>","DOI":"10.1055\/a-1236-4542","type":"journal-article","created":{"date-parts":[[2020,10,21]],"date-time":"2020-10-21T22:37:46Z","timestamp":1603319866000},"page":"313-320","source":"Crossref","is-referenced-by-count":7,"title":["CT imaging features of the normal parathyroid gland in the dog"],"prefix":"10.1055","volume":"48","author":[{"given":"Esther","family":"Lautscham","sequence":"additional","affiliation":[{"name":"Tierklinik Hofheim"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Clea","family":"von Klopmann","sequence":"additional","affiliation":[{"name":"Tierklinik Hofheim"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sebastian","family":"Schaub","sequence":"additional","affiliation":[{"name":"Department of Veterinary Clinical Sciences, Clinic for Small Animals, Justus-Liebig-University Giessen"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christiane","family":"Stengel","sequence":"additional","affiliation":[{"name":"Tierklinik Hofheim"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Antje","family":"Hartmann","sequence":"additional","affiliation":[{"name":"Tierklinik Hofheim"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"194","published-online":{"date-parts":[[2020,10,21]]},"reference":[{"key":"ref1","doi-asserted-by":"crossref","first-page":"1703","DOI":"10.7863\/ultra.32.10.1703","article-title":"Size Discrepancy Between Sonographic and Computed Tomographic\/Magnetic Resonance Imaging Measurement of Hepatocellular Carcinoma","volume":"32","author":"M J Cha","year":"2013","journal-title":"J\u2005Ultrasound Med"},{"key":"ref2","first-page":"71","volume-title":"Principles of Computed Tomography and Magnetic Resonance Imaging","author":"M A D\u2019Anjou","year":"2017","edition":"7th 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