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英文誌(2004-)

Journal of Medical Ultrasonics

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1990 - Vol.17

Vol.17 No.06

Original Article(原著)

(0689 - 0695)

頸部伸展による甲状腺前組織厚・甲状腺厚・甲状腺エコーレベル測定値の変化について

The Influence of Neck Position on the Measured Values of Prethyroid Thickness, Thyroid Thickness and Thyroid Echo Level

栗田 武彰1, 遠藤 正章2, 羽田 隆吉2, 加藤 智1

Takeaki KURITA1, Masaaki ENDOH2, Ryukichi HADA2, Satoru KATOH1

1木造成人病センター外科, 2弘前大学医学部第2外科

1Department of Surgery, Kizukuri Adult Disease Center Hospital, 2The Second Department of Surgery, Hirosaki University School of Medicine

キーワード : Thyroid echo level, Thyroid thickness

To evaluate the influence of neck position on values obtained for thyroid echo levels and other related parameters, measurments were tried first in a natural supine position and then in an hyperextended neck position in 37 thyroid disease free females (mean age: 32.7 years). Extension of the neck with an imaginary line connecting the external auditory meatus and the tip of the chin to be precisely rectangular to the recumbent plane, was obtained by placing a hard pillow underneath the scaplae of each subject.
The thickness of the thyroid decreased from 14.7±2.0 to 11.5±1.7 mm with a decremental ratio of 21.0%, whereas the echo level increased from 98.2±7.1 to 111.4±6.7 with an increase of 13.3%. The thickness of the prethyroid tissues also changed from 5.5±1.1 to 3.9±0.8 mm with a decrease of 28.7%. As the changes observed were all significant (p