Vet360 Vol 4 Issue 4 August 2017 Vet 360 - Page 28

DIAGNOSTIC IMAGING across the table to get a ventrodorsal projection (Fig- ure 3). This works really well for femur fractures too, so you don't have to extend the leg and pull on the fracture to get a good diagnostic view of the leg. You can also look for cranial mediastinal masses in a cat with a large volume of pleural fluid by standing the cat upright and obtaining a ventrodorsal view, allowing gravity to move any fluid caudally to allow evaluation of the cranial mediastinum. These techniques have largely been replaced by ultrasound, but if you do not have the equipment or the skill to identify these abnor- malities with ultrasound, cross-table imaging can help. 5 Figure 2B: Ventrodorsal view. amine the abdomen as well, do it before administer- ing barium as this contrast medium will shadow and can be mistaken for a foreign body. 4 Cross-table radiographs can help, especially in a traumatised patient. Older digital units were built into the x-ray table, so practitioners were not able to take cross-table projections, but today cross-table ra- diographs can help identify intraperitoneal gas. Do this by placing the animal with the left side on the ta- ble so the gas can rise. Then position your x-ray tube Positioning is key. The easier it has become to take radiographs with digital technology, the more likely it is for clinicians to cut corners because of the speed with which images are processed. Lost is the art of positioning patients with a straight lateral and using wedge pads and positioning devices. Largely this comes from a lack of willingness to sedate ani- mals because it takes added time. But using sedation to minimize patient stress and provide the ability to use sandbags to minimize technicians’ exposure to radiation will make radiographs go faster in the long run and provide a better image to interpret. The more obl ₯ΕΥ”Ρ‘”Α½Ν₯Ρ₯½Έ°Ρ‘”΅½Ι”±₯­•±δέ”…́Ʌ‘₯½±½₯ΝΡΜ)…Ι”ΡΌ΅₯Ν́±•Ν₯½ΉΜΈ)Q‘•Ι”…Ι”΅…ΉδΙ•…Ёɕ…Ν½ΉΜΡΌ•΅‰Ι…”Ρ‘”±₯ΡΡ•Θ΄)₯Ήœέ½Ι±½˜‘₯₯Ρ…°₯΅…₯Ήœ°Ρ‘”‰•ΝЁ½˜έ‘₯ ₯́ё”)…‰₯±₯ΡδΡΌ•ΠΉ•…Ι±δ₯ΉΝΡ…ΉΡ…Ή•½Ύ™••‘‰…¬™Ι½΄ΝΑ”΄)₯…±₯ΝΡ́…±°½Ω•ΘΡ‘”έ½Ι±έ₯Ρ Ρ•±•΅•‘₯₯Ή”Έ ΥЁ…±ΝΌ°)Ρ‘”‘•Ι•”½˜±…Ι₯Ρ䁅ΉΡ‘”…‰Ν•Ή”½˜Α½½Θ•αΑΌ΄)ΝΥɕ͕́•Έέ₯Ρ ½ΉΩ•ΉΡ₯½Ή…°Ι…‘₯½Ι…Α‘́΅…­”‘₯₯Ρ…°)₯΅…₯Ήœ…́ɕٽ±ΥΡ₯½Ή…ΙδΡΌΩ•Ρ•Ι₯Ή…Ι䁡•‘₯₯Ή”…́•±°)Α‘½Ή•Μέ•Ι”ΡΌ½΅΅ΥΉ₯…Ρ₯½ΈΈ)ΥΝЁ΅…­”ΝΥΙ”ε½Τ)Ρ…­”΅Υ±Ρ₯Α±”Ω₯•έ́Ѽ•Π…́΅Υ ₯Ή™½Ι΅…Ρ₯½Έ…‰½ΥΠ)Ρ‘”Α…Ρ₯•ΉΠ…́Α½ΝΝ₯‰±”„)₯ΥΙ”€ΜθQ‘₯́₯΅…”Ν‘½έ́ё”‘½Ι₯ι½ΉΡ…°‰•…΄ΑΙ½©•Ρ₯½ΈΡΌ±½½¬™½Θ™Ι•”…́₯ΈΡ‘”…‰‘½΅•ΈΈ%Ё₯́‰…Ν₯…±±δ„Ω•ΉΡΙ½‘½ΙΝ…°ΑΙ½©•Ρ₯½Έέ₯Ρ )Ρ‘”Α…Ρ₯•ΉΠ½Έ₯Ρ́±•™ΠΝ₯‘”Έ9½Ρ”Ρ‘”΅…Ι­•Θ₯ΈΡ‘”ΥΑΑ•Θ±•™Π½ΙΉ•Θ½˜Ρ‘”…ΝΝ•ΡΡ”₯́…Έ€‰H°ˆ₯Ή‘₯…Ρ₯ΉœΡ‘”Ι₯‘ЁΝ₯‘”½˜Ρ‘”Α…Ρ₯•ΉΠ°έ‘₯ )₯́ё”ΥΐΝ₯‘”Έ)Ω•ΠΜΨΐ)%ΝΝΥ”€ΐЁπUUMP€ΘΐΔ܁π€Θ