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KMID : 0361019770200040041
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Korean Journal of Otolaryngology - Head and Neck Surgery
1977 Volume.20 No. 4 p.41 ~ p.45
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Radiographic Study of the Soft Tissue in the Lateral Neck Film
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Abstract
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The lateral neck film is a useful guide in evaluating the bony and soft tissue relationships of the neck. The X-ray films` of the neck lateral view were studied on normal human adults of 60 males and 38 females for the interpretation of the soft tissue.
The regions evaluated were retropharyngeal postcricoid, pre-6th cervical vertebra, and posttracheal soft tissues. The results are as follows
1. Normal values of the retropharyngeal soft tissue thickness in the hypopharynx were 4.9±1.2mm in male and 4.7±1.0mm in female.
2. Normal values of the postcricoid soft tissue thickness were 5.8±1.4mm in male and 5.6± 1.4mm in female.
3. Normal values of the posttracheal soft tissue thickness were 12.8±1.9mm in male and 10.3±1.9mm in female.
4. The ratio between the A-P diameter of the 4th cervical vertebra and the retropharyngeal soft tissue thickness was 0.31: 1 in male and 0.30:1 in female.
5. The ratio between the posttrachecal soft tissue thickness and the inner diameter of the trachea was. 0.75: 1 in male and 0.86: 1 in female.
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