Vet360 Vol 4 Issue 4 August 2017 Vet 360 - Page 29

ADVERTORIAL Written by Kat Evans, BCF in-house Radiographer Should I Refer For a CT Scan? A discussion of Spinal and Orthopaedic 3D imaging. This article can help with determining whether CT is the best for scanning spines and extremities. Spine It is important to remember is that CT is not a replace- ment for X-ray and Ultrasound equipment, and there are many times when these are still better suited to a specific diagnosis. CT has an inherently high radiation dose, and this should be considered when deciding what is the best modality to use, along with patient stability and the financial cost. While MRI is excellent for looking at disc disease, the improved sensitivity of modern CT scanners make them a valuable diagnostic imaging tool in this region. If an animal has previously had spinal surgery, and has metal work near the region you are imaging, a CT scan will often be more forgiving than MRI– you will still get artefact, but modern techniques can help you with this. Good quality radiographs are always going to be very valuable for orthopaedic imaging, but there are times especially in the more complicated joints like the el- bow when CT can be beneficial to diagnosis. For example, if you have a Pug or Bulldog with hemi-vertebrae, using a CT scan image can give you a great 3D reconstruction to assist you in describing to owners the area of concern - this is also the case Issue 04 | AUGUST 2017 | 29