ページ3:

Before
viewing
the
images....
Ch2 Ordering and interpreting X-rays
米
* Know anatomy!
* Don't immediately focus on most obvious!
te
If you do,
you may miss other things
that may be going on.
*Consider what
fracture
you cannot see.
→ soft tissues by there are also affected.
Nerves; Arteries
assess
<ABCS of viewing imaging)
•Alignment
Bone<
Subchondral Cartilage
bone,
assess size, numbers, shape, and position.
of the bone
assess density (NWB/WB), and texture of the bone
growth plate, Soft tissue ←
and
epiphysis
• looking at
Periosteum
Cannot see on plain film,
but can see the space.
Still
You
Can see shadows
of the soft tissue around it.
4

ページ4:

<X-rays>
• Get good quality X-rays
.
• Know anatomy.
(eg). growth plate!
• Realize difference with age.
• Be able to interpret and react to your findings
•Know
your
limits!
• Stability of affected area
• The area proximal & distal to the area of concern
• Area of concern associated with pathology
Chest X-ray with neoplasms.
Calcaneal fracture associated with
thoracolumbar fracture
•Need 2 views (A-P and lateral
•Get the Tangent view
L3D look.

ページ5:

Chl. Overview of X-rays
<Pitfalls
Errors
observation - Don't completely look at the image
interpretation - Fail to link abnormal radiologic
signs to relevant clinical data.
2 common
patterns
<Scan doses
mSv.
-Chest X-ray
0.1
Head CT
1.5
-Abdominal CT
53
-Cardiac CT angiogram.
-Barium enema
6.7~13.0
15.0
-Neonatal abdominal CT
20.0
Risk of
Cancer 1
Atmic bomb (Hiroshima/Nagasaki)
Nuclear industory workers
40m Sv
20m Sv.