Transcript Zygomatic arches & Nasal bones

1/15/2012
class
Jug Handle View
R
Jug Handle View
R
Zygomatic Arches- SMV (jughandle view)
R
Note technique
considerably
reduced!
Temporal
process of
zygoma
Zygomatic
arch
zygomatic
process of
temporal
bone
Note difference in technique between SMV skull and SMV - zygomatic arch
A
B
Zygomatic arches- SMV
Similar to position for
skull or sinus SMV
CR perpendicular to
IOML,between
arches, 1” posterior to
outer canthus
Tilt image receptor if
possible
Zygomatic arches- SMV
Evaluation Criteria
No rotation of
head
Arches free
from
superimposition
of overlying
structures
Arches
symmetric
Arches not
burned out
You make the Call!
RR
Depression
fx. Left
zygomatic
arch
One advantage of cats:
What do you do when you get a patient
with flat cheekbones or depression fx. ?
R
Single
Zygomatic
Arch –
tangential
projection
Single Zygomatic Arch -tangential projection
L
R
L
Single Zygomatic Arch-Tangential projection
CR to side of
interest, perp. To
IOML
Tilt top of head 15
degrees away from
side of interest
? Rotate midsagital
plane15 degrees
towards side of
interest
Bilateral
Single Zygomatic Arch
Tangential projection
Salvador Dali- how many women?
7
Zygomatic Arches-AP Axial
Occipital
Mandible
Zygomatic
arch
Mandible
-AP Axial
Zygomatic Arch
Similar to
Towne,
except CR
enters at
glabella
instead of 2”
above
CR 30 deg.
Caudad to
OML
AP Axial Zygomatic Arches
Evaluation Criteria
No rotation
Arches project
laterally off rami
Collimation and
reduced
technique
-more than just a place to rest your glasses?
Nasal bones
Paired bones making up superior
bony wall of nasal cavity –
bridge of nose
Along with lacrimal bones,
thinnest and most fragile bones of
entire human body !!
Nasal Bones
Lateral Nasal bones
R
A
Naso-frontal suture
(nasion)
B
Nasal bone
C
Anterior nasal spine
Projections for Nasal Series
Lateral
Waters
Tangential?
Nasal bones-lateral projection
2 exposures
on one film?
L
(No longeralgorithm can’t
process on digital)
R
X
8x10
lengthwise
CR
perpendicular
to bridge of
nose, 1/2”
distal to
nasion
Close
collimation
Nasal bones-lateral projection
L
R
R
Nasal bones-lateral projection
Did you know dogs have a sense of smell
10,000 to 100,000 x greater than humans?
Can detect CANCER
patients by sniffing
urine- at a rate 3x
expected by chance
Probably due to
abnormal proteins in
urine
How to communicate?
Dogs Sniffing Breath
After short, intensive training, 5 Labrador
retrievers and 2 Portuguese water dogs
In a double blind study sniffed 55 Pts with
lung cancer, 31 with breast cancer 83
healthy people
90 % success rate
Able to detect early stages
Hoping to create electronic device
When dealing with drunk, disoriented, dim or
uncooperatiave patients, the need for
immobilization may require creative use of
available equipment-
Nasal Bones-Parieto-acanthial projection
R
Demonstrates
displacement of bony
nasal septum (Vomer
and perp. Plate of ethmoid)
depressed fx’s of
nasal wings
Nasal bones- Tangential projection
skulls 033a.jpg
Doesn’t work well on children, large foreheads, protruding front teeth, concave faces
Nasal Bones-Tangential projection
Nasal bones -Tangential
If you had
no occlusal
film--
What is the proper medical term for
“nosejob”?
Rhinoplasty!
Does it help?
King of all Rhinoplasty
Rare condition known as
“Penis Proboscus”
“Sure, kids made fun of me when I was young, but now I love it
when I have a cold. It feels so good when you blow my nose!”
!
You think you work with old equipment?
From a book published 1941