Abstract
Objective - To define the reference range for laminar blood flow (BF) and vascular permeability (VPM) in horses without laminitis by use of dynamic contrast-enhanced computed tomography (CT). Animals - 9 adult horses that were not lame and had no abnormalities of the laminae or phalanges detectable via radiographic examination. Procedures - Each horse was anesthetized by use of a routine protocol. Horses were placed in right or left lateral recumbency with the dependent forelimb in the CT gantry; only 1 limb of each horse was scanned. Serial 10-mm collimated transverse CT images were acquired at the same location every other second for 90 seconds during infusion of ionic, iodinated contrast medium. Custom software was used to estimate BF, VPM, and fractional vascular volume (FVV) in the dorsal, dorsomedial, and dorsolateral laminar regions. Results - Among the 9 horses' forelimbs, mean ± SD dorsal laminar BF was 0.43 ± 0.21 mL·min-1·mL-1. Mean dorsomedial and dorsolateral laminar BFs were 0.26 ± 0.16 mL·min-1 ·mL-1 and 0.24 ± 0.16 mL·min-1·mL-1, respectively. Mean dorsal laminar VPM was 0.09 ± 0.03 mL·min-1·mL-1. Mean dorsomedial and dorsolateral laminar VPMs were 0.16 ± 0.06 mL·min-1·mL-1 and 0.12 ± 0.06 mL·min-1·mL-1, respectively. Mean dorsal laminar FVV was 0.63 ± 0.20 and dorsomedial and dorsolateral laminar FVV were 0.37 ± 0.14 and 0.34 ± 0.17, respectively. Conclusions and Clinical Relevance - In horses, laminar BF, VPM, and FVV can be non-invasively measured by use of dynamic contrast-enhanced.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 371-377 |
| Number of pages | 7 |
| Journal | American Journal of Veterinary Research |
| Volume | 69 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 2008 |
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Measurement of equine laminar blood flow and vascular permeability by use of dynamic contrast-enhanced computed tomography. / Kruger, E. Freya; Puchalski, Sarah M.; Pollard, Rachel E; Galuppo, Larry D; Hornof, William J.; Wisner, Erik R.
In: American Journal of Veterinary Research, Vol. 69, No. 3, 03.2008, p. 371-377.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Measurement of equine laminar blood flow and vascular permeability by use of dynamic contrast-enhanced computed tomography
AU - Kruger, E. Freya
AU - Puchalski, Sarah M.
AU - Pollard, Rachel E
AU - Galuppo, Larry D
AU - Hornof, William J.
AU - Wisner, Erik R
PY - 2008/3
Y1 - 2008/3
N2 - Objective - To define the reference range for laminar blood flow (BF) and vascular permeability (VPM) in horses without laminitis by use of dynamic contrast-enhanced computed tomography (CT). Animals - 9 adult horses that were not lame and had no abnormalities of the laminae or phalanges detectable via radiographic examination. Procedures - Each horse was anesthetized by use of a routine protocol. Horses were placed in right or left lateral recumbency with the dependent forelimb in the CT gantry; only 1 limb of each horse was scanned. Serial 10-mm collimated transverse CT images were acquired at the same location every other second for 90 seconds during infusion of ionic, iodinated contrast medium. Custom software was used to estimate BF, VPM, and fractional vascular volume (FVV) in the dorsal, dorsomedial, and dorsolateral laminar regions. Results - Among the 9 horses' forelimbs, mean ± SD dorsal laminar BF was 0.43 ± 0.21 mL·min-1·mL-1. Mean dorsomedial and dorsolateral laminar BFs were 0.26 ± 0.16 mL·min-1 ·mL-1 and 0.24 ± 0.16 mL·min-1·mL-1, respectively. Mean dorsal laminar VPM was 0.09 ± 0.03 mL·min-1·mL-1. Mean dorsomedial and dorsolateral laminar VPMs were 0.16 ± 0.06 mL·min-1·mL-1 and 0.12 ± 0.06 mL·min-1·mL-1, respectively. Mean dorsal laminar FVV was 0.63 ± 0.20 and dorsomedial and dorsolateral laminar FVV were 0.37 ± 0.14 and 0.34 ± 0.17, respectively. Conclusions and Clinical Relevance - In horses, laminar BF, VPM, and FVV can be non-invasively measured by use of dynamic contrast-enhanced.
AB - Objective - To define the reference range for laminar blood flow (BF) and vascular permeability (VPM) in horses without laminitis by use of dynamic contrast-enhanced computed tomography (CT). Animals - 9 adult horses that were not lame and had no abnormalities of the laminae or phalanges detectable via radiographic examination. Procedures - Each horse was anesthetized by use of a routine protocol. Horses were placed in right or left lateral recumbency with the dependent forelimb in the CT gantry; only 1 limb of each horse was scanned. Serial 10-mm collimated transverse CT images were acquired at the same location every other second for 90 seconds during infusion of ionic, iodinated contrast medium. Custom software was used to estimate BF, VPM, and fractional vascular volume (FVV) in the dorsal, dorsomedial, and dorsolateral laminar regions. Results - Among the 9 horses' forelimbs, mean ± SD dorsal laminar BF was 0.43 ± 0.21 mL·min-1·mL-1. Mean dorsomedial and dorsolateral laminar BFs were 0.26 ± 0.16 mL·min-1 ·mL-1 and 0.24 ± 0.16 mL·min-1·mL-1, respectively. Mean dorsal laminar VPM was 0.09 ± 0.03 mL·min-1·mL-1. Mean dorsomedial and dorsolateral laminar VPMs were 0.16 ± 0.06 mL·min-1·mL-1 and 0.12 ± 0.06 mL·min-1·mL-1, respectively. Mean dorsal laminar FVV was 0.63 ± 0.20 and dorsomedial and dorsolateral laminar FVV were 0.37 ± 0.14 and 0.34 ± 0.17, respectively. Conclusions and Clinical Relevance - In horses, laminar BF, VPM, and FVV can be non-invasively measured by use of dynamic contrast-enhanced.
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UR - http://www.scopus.com/inward/citedby.url?scp=41049113659&partnerID=8YFLogxK
U2 - 10.2460/ajvr.69.3.371
DO - 10.2460/ajvr.69.3.371
M3 - Article
C2 - 18312136
AN - SCOPUS:41049113659
VL - 69
SP - 371
EP - 377
JO - American Journal of Veterinary Research
JF - American Journal of Veterinary Research
SN - 0002-9645
IS - 3
ER -