B-Mode Ultrasonographic Abnormalities and Power Doppler Signal in Suspensory Ligament Branches of Nonlame Working Quarter Horses.

This study investigates the presence of B-mode ultrasonographic abnormalities and power Doppler signals in the suspensory ligament branches of nonlame working Quarter Horses. It found these abnormalities and signals to be more prevalent in team roping horses compared to barrel racing horses.

Research Objective and Methodology

• The primary objective of this study was to identify the prevalence of B-mode ultrasonographic abnormalities and power Doppler signals in the suspensory ligament branches of nonlame working Quarter Horses.
• To achieve this, researchers compared the B-mode findings with power Doppler signals of Quarter Horses in two different types of training: barrel racing and team roping.
• The sample for this research study consisted of 21 nonlame working Quarter Horses undergoing training – 14 for barrel racing (Group B) and 7 for team roping (Group R).
• All selected horses were examined through ultrasound for screening purposes. A total of 168 suspensory ligament branches were examined using B-mode and power Doppler.

Research Findings

• The results showed that B-mode lesions were more common in the forelimbs, seen in 25 branches, than in the hindlimbs, which were observed in 10 branches.
• No power Doppler signal was detected in suspensory ligament branches that were determined to be normal through B-mode. However, the signal was visible in 22 out of the 35 branches deemed abnormal via B-mode.
• Horses from Group R (team roping) exhibited more B-mode abnormalities and more power Doppler signals in branches identfied as abnormal in B-mode compared to those in Group B (barrel racing).

Conclusion

• This study provides valuable insights into the prevalence of B-mode ultrasonographic abnormalities and power Doppler signals in nonlame working Quarter Horses, particularly those engaged in barrel racing and team roping training.
• The results indicate that these abnormalities and signals are more common in team roping horses, suggesting potential physiological stresses or strains associated with this type of activity.