Part 1 Flashcards
If you see an abnormal non skeletal area that you think should be investigated how should you proceed?
Special procedures
What are the 3 special procedures ?
Ultrasonography (diagnostic ultrasound), contrast media studies, and CT (with or w out contrast)
What are the 5 things that we can see on film (water density outlined by oil density) >
Kidneys, spleen, liver, bladder, psoas muscles
What are of the kidneys can we see?
Upper, lower poles, and lateral boarders
What part of the spleen can we see?
Lower and maybe a little medial broader
What part of the liver can we see?
Lower boarder
What part of the bladder can we see?
Upper and lateral
What part of the psoas can we see?
Lateral borders
What are the 4 causes for non visualization of tissues?>/
- Blurred from patient motion
- Superimposed gas and fecal material
- Adjacent fluid
- Absence ( congenital or surgical )
What are 2 reasons for structures appearing smaller than normal?
Underdeveloped or atrophied
What are reasons for structures appearing larger than normal? (4)
Engorged, tumorous or swollen, overdeveloped (compensation probably)
What is the rarest type of habitus ?
Hypersthenic
What is the organ positions of someone with a hypersthenic body type?
More transverse and highly placed.
What is the second rarest habitus?
Asthenic
What is the position of organs/shape of someone with an asthenic type of body?
Has a very narrow thorax and abdomen. Most of their gear hangs low into the pelvic region, and their transverse colons and stomachs are often crowded into the pelvic cavity
What is the 2nd most common type of habitus ?
Hyposthenic
What is the most common type of habitus?
Sthenic
What percent of the population has a sthenic body type?
48%
What percent of people have a hyposthenic body type?
35%
What percent of ppl have a asthenic body type?
12%
What percent of people have a hypersthenic body type?
5%
what would find in the RUQ?
Liver, right kidney, part of the right psoas muscle, hepatic flexure
What would you find in the LUQ?
Spleen, left kidney, part of the right psoas muscle, and splenic flexure,
What would you find in the RLQ> ?
Lower part of the right psoas muscle, cecum, and right part of the bladder.
What would you ind in the LLQ?
Left part of the bladder and sigmoid colon.
What is a conduits?
Track like or tubular have linear streaks
What is the etiology of atherosclerosis of the aorta?
Linked to elevated cholesterol and triglycerides but is unknown.
How does atherosclerosis of the aorta appear?
2 parallel lines (conduits tracks or tram track appearance).
Is the tract seen in atherosclerosis of the aorta continuous or not?
It is usually discontinuous (may be continuous in advanced cases)
What is the normal diameter of the abdominal aorta?
1 inch
What age is atherosclerosis of the aorta common?
50 and up
A vertebral body on an AP film normally is a little more than ___times bigger than aorta
2
How are aneurysms classified?
1st by location, 2nd by shape, 3rd is true or false.
What does true mean when talking about abdominal aorta?
Dilation of an artery including the intimal layer and false means a dissection causing dilation of the arterial layers.
What % of abdominal aortas demonstrate a calcific rim?
75-86%
What are most abdominal aortic aneurysms caused by?
Atherosclerosis
What sex, ethnisisty and age are abdominal aortas common?
85% dudes, 90% whities, 50 and up
Are most abdominal aortic aneurysims fusiform or saccular?
80% fusiform
What spinal location are AAA found?
Between the 2nd and 4th lumbars
What blood vessels are AAA found?
Renal and common iliac arteries
On an AP film where are AAA found?
To the left
__cm usually don’t rupture but 10% of those will?
5
__cm usually do rupture, this being the PEAK incident?
7
What are 3 changes seen on a radiograph for a AAA?
Marked change in location of calcific plaques, soft tissue mass, loss of psoas muscle or kidney shadow
Are anterior vertebral body erosions common in AAA?
No dude