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Transcript of Radiology
Dr. Steve Joslyn
BVMS DipECVDI MRCVS
Get going now!
What is it?
Becoming a radiologist
BLOOD and ST
BLOOD and Soft Tissue
Photoelectric interactions Predominate
Compton Scatter interactions Predominate
Pair-Production interactions Predominate
Mammography Photon E range
Diagnostic Photon E range
CT Photon E range
Photoelectric Effect: The energy of the incident x-ray photon is lost when it impacts an orbiting electron and ejects it. An outer electron will fill the void and release energy, as characteristic radiation, equal to the difference of the orbital energy (e.g. M - L in eV). With more interactions, the reducing energy of the characteristic radiation photon will be attenuated.
Compton Scatter: The increased energy of the incident x-ray photon is not all lost when it impacts and ejects an orbiting electron. The incident photon is merely scattered in a different direction, but continues on. Depending on which orbit the photon impacts will give rise to either Compton Scatter or Photoelectric effect, so both interactions can overlap.
Pair-production: The incident photon has enough energy to hit the nucleus and eject a pair of beta particles (positron and electron). A positron is the anti-matter equivalent of the electron with a positive charge. It is heavily attracted to electrons so when it finds one, and it will do very quickly), they both annihilate producing two photons of 0.511MeV each, which irradiate in exactly opposite directions to each other.
X-ray photon attenuation and the types of interaction with common tissue and medical contrast agents.
Large Animal, Small Animal, Exotics....
1 year Rotating internship
3 year Residency - ACVR, ECVDI, etc
Clinical Experience in Small animal, or Large animal Practice
Come to the dark side!
Private Practice (22)
Detection of pneumothorax and pleural effusion with horizontal beam radiography.
DVM or equivalent
Computed tomographic imaging of dogs with primary laryngeal or tracheal airway obstruction.
Lung Lobe torsion - CT imaging technqiues
Vertebral Heart Score in Cats
Digital Image Analysis
Micro dose CT cardiac angiography in normal cats
1 publication = weeks(s) research/data collection; month(s) of writing
Enough time in 4th year?
If you put the effort in, Radiology will get you published.
Help in choosing a Veterinary Career?
Want a Life?
Afraid of the Dark
Afraid of the Sun
Soft Tissue Surgery