Normal Carina Angle Size on Chest Radiography
The normal carina angle on posteroanterior chest radiography measures 40–80°, with widening suggesting left atrial or subcarinal pathology.
Trachea
7 entries
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Normal Neonatal Trachea Diameter on Radiography
Reference values for normal neonatal tracheal diameter on radiography, including AP and lateral measurements at C5, T1, and T3 levels.
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Normal Posterior Tracheal Wall Thickness on Radiography
Normal posterior tracheal wall thickness on lateral chest radiography measures less than 2.5 mm — a key landmark for detecting retrotracheal pathology.
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Normal Right Paratracheal Stripe Width on Chest X-Ray
The normal right paratracheal stripe measures less than 4 mm on anteroposterior chest radiography; widening suggests mediastinal pathology.
Normal Right Paratracheal Stripe Width on Radiography
The normal right paratracheal stripe measures less than 4 mm on PA chest radiography; widening suggests mediastinal pathology requiring further evaluation.
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Normal Trachea Coronal/Sagittal Diameter Ratio on X-Ray & CT
The normal trachea coronal-to-sagittal diameter ratio exceeds 0.6 on radiography and CT, helping detect saber-sheath deformity and other tracheal abnormalities.
Normal Tracheal Maximal Diameter Size on Radiography
Normal tracheal maximal diameter on posteroanterior radiography measures less than 3 cm; values exceeding this threshold may indicate tracheomegaly or pathology.
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