The below information provides an indicative cost breakdown of the diagnostic imaging options (before the 50 per cent subsidy is applied) available as part of the Diagnostic Imaging Subsidy Program offered by Racing Victoria:
MRI: Magnetic Resonance Imaging
What: MRI uses magnetic fields and resistance to create high-quality three-dimensional images of bone, fluid and soft tissue. MRI shows an image of the physical change occurring during injury or disease. Multiple images are collected of the area of concern. All standing MRI units are low-field, so those images have less detail than high-field MRI and CT.
Where: Ballarat Veterinary Practice Equine Clinic (Standing Procedure) or U-Vet Werribee - High Field MRI (with General Anaesthesia).
How much (full fee): High field MRI: up to $3,200 and Standing MRI: $2,995.
Scintigraphy (bone scan)
What: The patient is injected with a radioactive substance and a few hours later a gamma camera records which areas of the body have increased uptake of the radioactive substance. These areas are commonly known as hot spots—areas of increased bone activity (or soft tissue inflammation or cell turnover).
Where: Ballarat Veterinary Practice Equine Clinic, Goulburn Valley Equine Hospital or U-Vet Werribee.
How much (full fee): Up to $3,000.
CT: Computed Tomography
What: The standing CT scanner for horses allows efficient three-dimensional imaging of the lower limb and identification of otherwise undetected bone damage. It is essentially cross-sectional radiographs and very useful, providing excellent, high-detailed images for bone and fair to good images for soft tissues. Images can be viewed in multiple planes and at multiple angles. The quality and contrast of images created by CT is far superior to standard x-ray.
Where: U-Vet Werribee.
How much (full fee): Approximately $1,200 - $2,000*.
* Already
partially subsided by RV and the State Government via investment in the Equine
Limb Injury Prevention Program.
PET Scan: Positron Emission Tomography Scan
Where? The University of Melbourne Equine Centre
How does it work? A PET scan is similar to scintigraphy in that they both use nuclear imaging techniques to detect “hot spots” that may indicate microscopic changes within the bones of the lower limb. However, in contrast to scintigraphy, a PET scan produces a three-dimensional image, which provides more detailed information than scintigraphy which only produces a two-dimensional image. PET Scans are effective at detecting bone change before it becomes apparent on x-ray or ultrasound. When used in conjunction with CT, PET scans can also distinguish between active and inactive injuries of bone and soft tissue.
Areas that can be imaged: Lower limb (fetlocks/ hocks down to and including the foot).
Indications: Lameness that is originating from the lower limb.
Procedure: The horse usually arrives at the clinic the night before imaging to allow for assessment and preparation for imaging the following morning. Similar to scintigraphy, a small amount of radioactive tracer is injected into the horse and takes approximately half an hour to bind to any areas of increased bone turnover/ bone injury. The horse is then sedated so that images can be taken. Imaging can take up to an hour (depending on the area being imaged). The horse generally goes home on the same day as the procedure.
Cost PET Scan: up to $3300 (including GST)
Please note: All costs are subject to change and must only be used as a guide. Full prices including GST will be determined by the participating practices delivering the diagnostic imaging.