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Nuklearmedizin 1976; 15(02): 60-62
DOI: 10.1055/s-0038-1624934
Originalarbeiten — Original Articles
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Scintiscan Characteristics of Normal Thyroid Gland in a Region of Known Iodine Intake

Szintigraphische Charakteristiken der normalen Schilddrüse in einem Gebiet mit bekannter Jodzufuhr
G. T. Krishnamurthy   *
1   Nuclear Medicine and Research Services, Veterans Administration Wadsworth Hospital Center, Los Angeles; Department of Medicine, University of California at Los Angeles (UCLA) School of Medicine
,
Lucille E. Snoop   **
1   Nuclear Medicine and Research Services, Veterans Administration Wadsworth Hospital Center, Los Angeles; Department of Medicine, University of California at Los Angeles (UCLA) School of Medicine
› Author Affiliations
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Publication History

Received:19 July 1975

Publication Date:
11 January 2018 (online)

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Summary

Morphological features of a normal thyroid gland in a geographical region where the daily iodine intake is about 1 mg are established. The mean weight of the thyroid gland is 31.3 gm with a range from 19 to 43 gm. Oblique length of the right lobe is 5.0 cm and that of the left lobe 4.8 cm. The surface area of the right and left lobes is 9.7 and 9.1 cm2, respectively. The weight of the thyroid gland calculated on the basis of the scan obtained with 99mTcO4 is quite variable and shows poor correlation (γ = 0.40) with the weight obtained on the basis of I-131 scan. It is suggested that the criteria of normalcy be established regionally based on iodine intake, and that an isotope of iodine be used in calculating the weight of thyroid gland for dosimetry purposes.

Die morphologischen Gegebenheiten der normalen Schilddrüse in einem geographischen Gebiet mit täglicher Jodzufuhr von 1 mg wird dargestellt. Das mittlere Schilddrüsengewicht betrug 31,3 g mit einer Schwankung von 19—43 g. Der schräge Längsdurchmesser des rechten Lappens ist 5,0 cm, die des linken 4,8 cm. Die Oberfläche des rechten und des linken Lappens ist 9,7 bzw. 9,1 cm2. Das Schilddrüsengewicht, das auf Grundlage einer 99mTcO4-Szintigraphie berechnet wurde, ist unterschiedlich und zeigt eine schlechte Korrelation (a = 0,40) mit dem Gewicht, das aus einem 131J-Scan berechnet wurde. Es wird vorgeschlagen, daß die Kriterien des Normalen für eine Gegend festgelegt werden auf der Basis der Jodzufuhr und daß ein Jodisotop verwendet wird, um das Schilddrüsengewicht für dosimetrische Zwecke zu bestimmen.

* G.T. Krishnamurthy, M. B. B. S., M.S., F. A. C. P., Staff Physician, Nuclear Medicine Service, VA Wadsworth Hospital Center; and Assistant Professor of Medicine, UCLA School of Medicine.


** Lucille E. Shoop, R. N., Nuclear Medicine Service, VA Wadsworth Hospital Center, Los Angeles.


 

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