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COMPARISON OF FLUOROSCOPY AND COMPUTED TOMOGRAPHY FOR TRACHEAL LUMEN DIAMETER MEASUREMENT AND DETERMINATION OF INTRALUMINAL STENT SIZE IN HEALTHY DOGS
- Source :
- Veterinary Radiology & Ultrasound. 57:269-275
- Publication Year :
- 2016
- Publisher :
- Wiley, 2016.
-
Abstract
- Tracheal collapse is a progressive airway disease that can ultimately result in complete airway obstruction. Intraluminal tracheal stents are a minimally invasive and viable treatment for tracheal collapse once the disease becomes refractory to medical management. Intraluminal stent size is chosen based on the maximum measured tracheal diameter during maximum inflation. The purpose of this prospective, cross-sectional study was to compare tracheal lumen diameter measurements and subsequent selected stent size using both fluoroscopy and CT and to evaluate inter- and intraobserver variability of the measurements. Seventeen healthy Beagles were anesthetized and imaged with fluoroscopy and CT with positive pressure ventilation to 20 cm H2 O. Fluoroscopic and CT maximum tracheal diameters were measured by three readers. Three individual measurements were made at eight predetermined tracheal sites for dorsoventral (height) and laterolateral (width) dimensions. Tracheal diameters and stent sizes (based on the maximum tracheal diameter + 10%) were analyzed using a linear mixed model. CT tracheal lumen diameters were larger compared to fluoroscopy at all locations (P-value < 0.0001). When comparing modalities, fluoroscopic and CT stent sizes were statistically different. Greater overall variation in tracheal diameter measurement (height or width) existed for fluoroscopy compared to CT, both within and among observers. The greater tracheal diameter measured with CT and lower measurement variability has clinical significance, as this may be the imaging modality of choice for appropriate stent selection to minimize complications in veterinary patients.
- Subjects :
- medicine.medical_specialty
Diameter measurement
General Veterinary
medicine.diagnostic_test
040301 veterinary sciences
business.industry
medicine.medical_treatment
Tracheal collapse
Stent
Computed tomography
04 agricultural and veterinary sciences
respiratory system
Airway obstruction
medicine.disease
Tracheal lumen
0403 veterinary science
03 medical and health sciences
0302 clinical medicine
030228 respiratory system
medicine
Fluoroscopy
Radiology
business
Positive pressure ventilation
Subjects
Details
- ISSN :
- 10588183
- Volume :
- 57
- Database :
- OpenAIRE
- Journal :
- Veterinary Radiology & Ultrasound
- Accession number :
- edsair.doi...........e853cf61ec7fa1de50b90456e89a0d3a