Digital
Radiography
Powerful units allow the use of high definition
file/screen combinations resulting in radiographs
of the very highest diagnostic quality. Proximal
structures such as the shoulder joint can be imaged
successfully in conscious adults. Excellent images
of soft tissue structures such as lungs are also
obtained. In-theatre equipment enables good pelvic
and myelographic studies to be performed. |
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Craniocaudal
view of stifle
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Radiograph
checking position of vertebral stabilisation in
a 'wobbler' |
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Nuclear
scintigraphy ('bone scanning')
The Hospital has pioneered the use of scintigraphy
over the last 25 years. A GEC Maxicam gamma
camera is mounted in a dedicated scintigraphy
room on a purpose designed, counterbalanced
arm which allows images to be obtained over
the whole body. Scanning is routinely performed
on a daily basis with isotope generated on site.
The majority of procedures are performed on
sedated horses but the facility exists for scanning
under general anaesthesia if necessary. |
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| A 'bone
scan' of a horse's pelvis. |
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Magnetic
Resonance Imaging (MRI)
The Hospital
has one of only two magnetic resonance units
in the country that allows MR imaging of the
lower limbs in standing horses without the need
for general anaesthetic. The system is operated
by a qualified radiographer with extensive experience
of human MR imaging (Lesley-Ann Allen) in conjunction
with Jane Boswell, one of our orthopaedic surgeons.
MRI is an excellent tool for imaging the different
structures in the lower limb and is particularly
useful in horses with lameness arising from
the foot. This modality complements other imaging
techniques and is helping to unravel the "mysteries"
of navicular syndrome. |
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Sagittal
MR image of a horse's foot
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A sedated
horse having MR images taken of the lower limb.
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Ultrasonography
The Hospital has seven ultrasound machines providing
linear array scanning at 5.0, 7.5 and 10 MHz and
sector scanning (with colour flow doppler facility)
at 2.25 to 5.0 MHz. This combination allows a
full range of musculoskeletal, abdominal, gynaecological,
pleural and cardiac ultrasonographic techniques
to be carried out. Ultrasonography associated
with a precise biopsy guidance system is frequently
employed for tissue biopsy including liver, kidney
and miscellaneous internal masses. Liver
biopsy has proved to be a very informative
adjunct to the investigation of suspected cases
of liver disease. Under ultrasound guidance the
condition is rapid and of negligible risk and
is usually performed on an out-patient basis. |
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| Ultrasonographic
image of a horse's liver |
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Taking
a liver biopsy in a sedated horse
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Videoendoscopy
V ideoendoscopes allow close and detailed visualisation
of many otherwise inaccessible areas with the
image displayed on a large screen for easy explanation
to the client. Most procedures are performed with
a 1.4m videoendoscope allowing inspection of the
upper respiratory tract, guttural pouches, uterus,
urethra and bladder, even in smaller patients.
Our 3.0m videoendoscope allows examination of
the entire oesophagus, stomach and upper duodenum
and also the trachea and bronchi. The increasingly
recognised prevalence of gastric ulcers in horses
and their excellent response to treatment adds
merit to the routine use of gastroscopy in suspicious
cases. Also the increasing frequency of respiratory
allergies (especially in spring and summer) leads
to ever larger numbers of such cases being investigated
in the hospital. |
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A horse
being 'scoped'
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Gastric
ulcers seen via gastroscope
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Skin
diseases
An in-depth clinical and clinicopathological examination
of problematic dermatological cases is usually
carried out on an in-patient basis. Suspected
skin allergies are investigated using a customised
screen of at least 46 different intradermal allergens
(additions appropriate to the individual history
are available), the 'gold standard' technique
for identification of allergens. Follow-up therapeutic
hyposensitisation can then be applied in appropriate
cases. |
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Intradermal
testing in a horse with skin allergy
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Taking
a skin biopsy from a sedated horse
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Respiratory
disease
Expertise and facilities are available for a full
and thorough examination and evaluation of horses
and ponies with seasonal or non-seasonal respiratory
problems. Arterial gas tensions, pleural pressure
measurements, radiography, videoendoscopy and
airway secretion sampling (bronchoalveolar lavage
and tracheal wash) are all routinely performed
where required. Considerable experience with both
systemic and inhalation therapy optimises the
chances of recovery. |
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A horse
with a respiratory allergy receiving inhaled
medication
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Ophthalmic
conditions
Appropriate medical and surgical management of
ocular diseases frequently requires specialised
equipment and around the clock monitoring and
treatment. This is always available at the hospital
where conditions such as recurrent uveitis, non-healing
ulcers and ocular penetrating injuries are routinely
seen. Additionally second opinions are given on
request by referring veterinary surgeons regarding
ocular abnormalities/variations detected during
prepurchase examinations. |
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Slit lamp
biomicroscope being used to examine a horse's
cornea. |
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Laboratory
A well-equipped in-house laboratory provides a
vital back-up to the Hospital's services and is
operated by a full-time trained technician. Referred
samples are welcomed and the Hospital is an HBLB
appointed laboratory for isolation of venereal
pathogens. See The Laboratory. |
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Julia Revill,
The hospital laboratory manager |