5: Vet Ther. 2005 Fall;6(3):268-76.Related Articles, Books, LinkOut
Scintigraphic, radiographic, and thermographic appearance of the metacarpal
and metatarsal regions of adult healthy horses treated with nonfocused
extracorporeal shock wave therapy--a pilot study.
Verna M, Turner TA, Anderson KL.
Veterinary Population Medicine Department, College of Veterinary Medicine,
University of Minnesota, St Paul, MN 55108, USA.
Nonfocused extracorporeal shock wave therapy (ESWT) treatment protocol is
commonly used in veterinary practice. This study investigated the effects of
four nonfocused ESWT treatments, given 2 weeks apart, on bone
radiopharmaceutical uptake and radiographic and thermographic appearance in
the metacarpal and metatarsal regions in six adult untrained horses. There
were no measurable treatment effects determined by thermography (daily),
scintigraphy (at 2-week intervals), and radiography (before study initiation
and at study completion) between treated and control limbs. It was concluded
that no gross evidence of bone remodeling is detectable by conventional
clinical assessment when nonfocused ESWT is applied to healthy equine
metacarpal or metatarsal bone.
8: Am J Vet Res. 2005 Oct;66(10):1836-42.Related Articles, Books,
LinkOut
Assessment of scintigraphic and thermographic changes after focused
extracorporeal shock wave therapy on the origin of the suspensory ligament and
the fourth metatarsal bone in horses without lameness.
Ringer SK, Lischer CJ, Ueltschi G.
Equine Hospital, VETSUISSE Faculty, University of Zurich, Switzerland.
OBJECTIVE: To monitor the effect of focused extra-corporeal shock wave therapy
(ESWT) on bone an d bone-tendon junction of horses without lameness by use of
nuclear scintigraphy and thermography. ANIMALS: 6 warmblood horses without
lameness. PROCEDURE: The origin of the suspensory ligament at the metacarpus
(OSL-MC) and the fourth metatarsal bone were treated at 2 time points (days 0
and 16) with 2,000 shocks applied by a focused ESWT device at an energy flux
density of 0.15 mJ/mm2. One forelimb and 1 hind limb were treated, and the
contralateral limbs served as controls. To document the effect of focused
ESWT, nuclear scintigraphy was performed on days -1, 3, 16 (before second
ESWT), and 19. Thermography was performed on days -1, 0 (1 hour after first
ESWT), 1, 3, 8, 16 (twice; before and 1 hour after second ESWT), and 19. On
days 3, 16 (first scans), and 19, thermography was performed before
scintigraphy. RESULTS: Scintigraphically, significant variations in
radiopharmaceutical activity at the OSL-MC were detected in treatment and
control limbs. No significant differences, however, in mean temperature or
radiopharmaceutical activity could be detected by use of thermography or
nuclear scintigraphy, respectively, between the treatment and control limbs at
any time point in response to ESWT. CONCLUSIONS AND CLINICAL RELEVANCE: After
2 treatments of focused ESWT, no physiologic effect on the studied structures
could be demonstrated by use of nuclear scintigraphy or thermography. Results
of this study indicate that at currently used ESWT settings, no damage to the
bone or bone-tendon junction should occur.
PMID: 16273919 [PubMed - in process]
9: Acta Vet Scand. 2005;46(3):137-47.Related Articles, Books, LinkOut
Infrared thermography and ultrasonography to indirectly monitor the influence
of liner type and overmilking on teat tissue recovery.
Paulrud CO, Clausen S, Andersen PE, Rasmussen MD.
Danish Institute of Agricultural Sciences, Resear ch Centre Foulum, Tjele,
Denmark.
Eight Danish Holstein cows were milked with a 1-mm thick specially designed
soft liner on their right rear teat and a standard liner mounted under extra
high tension on their left rear teat. Four of the animals were overmilked for
5 min. Rear teats were subjected to ultrasound examination on the first day
and to infrared thermography on the second day. Teats were submersed in
ethanol 20 min post-milking on the second day. Ultrasonography measurements
showed that teat canal length increased by 30-41% during milking. Twenty
minutes after milking, teats milked with modified standard liners still had
elongated teat canals while teats milked with the soft liner were normalized.
Overmilking tended to increase teat wall thickness. Approximately 80% of
variability in teat canal length, from before teat preparation to after
milking, could be explained by changes during teat preparation. Thermography
indicated a general drop in teat temperature during teat preparation. Teat
temperature increased during milking and continued to increase until the
ethanol challenge induced a significant drop. Temperatures approached
pre-challenge rather than pre-milking temperatures within 10 minutes after
challenge. Teat temperatures were dependent on type of liner. Mid-teat
temperatures post-challenge relative to pre-teat preparation were dependent on
overmilking. Thermography and ultrasound were considered useful methods to
indirectly and non invasively evaluate teat tissue integrity.
38: J Dairy Sci. 2005 Aug;88(8):2749-53.Related Articles, Books, LinkOut
Short communication: infrared thermography and visual examination of hooves of
dairy cows in two stages of lactation.
Nikkhah A , Plaizier JC, Einarson MS, Berry RJ, Scott SL, Kennedy AD.
Department of Animal Science, Univer sity of Manitoba, Winnipeg, MB, R3T 2N2
Canada.
Hooves of 16 lactating Holstein cows were examined twice for sole hemorrhages
and underrun heels. Images of hooves were taken using infrared thermography to
determine the temperatures of the coronary band and that of a control area
above the coronary band. To adjust for skin (control) temperature, the
difference (DeltaT) between the coronary band and the control area was
calculated. Effects of stage of lactation, that is,