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Vet Surg. 2015 Jan;44(1):114-8. doi: 10.1111/j.1532-950X.2014.12227.x. Epub 2014 Jun 7.

Comparison of radiography and computed tomography for determining tracheal diameter and length in dogs.

Author information

1
Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada.

Abstract

OBJECTIVE:

To compare radiographic and computed tomography (CT) measurements of tracheal size as would be made for the purpose of tracheal stent size selection.

STUDY DESIGN:

Cross-over.

ANIMALS:

Dogs (n = 15).

METHODS:

Canine cadavers without evidence of tracheal or respiratory disease were used for CT and digital radiography of the neck and thorax. Three observers each made 3 independent measurements at each of 5 tracheal locations, and also measured tracheal length, on each radiograph and for each CT scan on each cadaver.

RESULTS:

CT tracheal measurements were on average 1.03 mm larger (P < .01) compared with radiographic measurements for all 3 observers.

CONCLUSIONS:

Radiographic measurements of the canine trachea consistently underestimate tracheal size, and CT measurements are preferable for selecting tracheal stent size.

[Indexed for MEDLINE]

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