Intra- and inter-observer reliability of combined segmental measurement techniques for predicting immediate post-deployment intraluminal tracheal stent length in dogs.
This study evaluated segmental measurement techniques for predicting immediate post-deployment intraluminal tracheal stent length in dogs with naturally occurring tracheal collapse. Radiographs of 12 client-owned dogs that underwent intraluminal tracheal stent placement were retrospectively reviewed. Tracheal lengths were divided into 1, 2, 3, or 4 equal segments. Stent lengths were predicted using the widest dorsoventral height of each segment, with and without the addition of 10%, and an accompanying foreshortening chart. Techniques were compared for intra- and inter-observer reliability, and post-deployment stent length predictability. There was good to high intra- and inter-observer reliability for all segmental measurements; median intra-class correlation coefficients were 0.98 and 0.92, respectively. Measuring 2 segments without the addition of 10% to the widths was significantly more accurate in predicting immediate post-deployment stent length in terms of percent (P = 0.03) and absolute difference (P = 0.02). Segmental measuring techniques are repeatable amongst observers and may help guide stent selection.
Veterinary Surgical Centers, Leesburg & Vienna, Virginia, USA (Monaco, Taylor, Langenbach, Gordon); Department of Statistics, Virginia Tech, Blacksburg, Virginia, USA (Vance).
Thomas A
TA
Monaco
Veterinary Surgical Centers, Leesburg & Vienna, Virginia, USA (Monaco, Taylor, Langenbach, Gordon); Department of Statistics, Virginia Tech, Blacksburg, Virginia, USA (Vance).
Jim A
JA
Taylor
Veterinary Surgical Centers, Leesburg & Vienna, Virginia, USA (Monaco, Taylor, Langenbach, Gordon); Department of Statistics, Virginia Tech, Blacksburg, Virginia, USA (Vance).
Anke
A
Langenbach
Veterinary Surgical Centers, Leesburg & Vienna, Virginia, USA (Monaco, Taylor, Langenbach, Gordon); Department of Statistics, Virginia Tech, Blacksburg, Virginia, USA (Vance).
Sebastian
S
Gordon
Veterinary Surgical Centers, Leesburg & Vienna, Virginia, USA (Monaco, Taylor, Langenbach, Gordon); Department of Statistics, Virginia Tech, Blacksburg, Virginia, USA (Vance).
Eric
E
Vance
D000818:Animals; D004283:Dog Diseases / Q000473:pathology / Q000601:surgery*; D004285:Dogs; D005260:Female; D008297:Male; D015588:Observer Variation; D019919:Prosthesis Implantation / Q000592:standards / Q000662:veterinary; D015607:Stents / Q000662:veterinary*; D014132:Trachea / Q000033:anatomy & histology*; D014135:Tracheal Stenosis / Q000601:surgery / Q000662:veterinary*