Xray Physics 2 Flashcards
processing
solution temeratures affect the film
too hot= increase density
too cold= decrease density
processing factors
developer
rinse
fixer
washing
developer
brings out latent image by devleoping the exposed silver halide crystals
rinse
removed the exposed silver halide crystals
fixer
hardens the image
makes it permanent on the film
washing
removes developer and fixer
films always come out too dark?
light leak
developer temperature too hot
overexposure
films always too light?
developer temperature too low, chemicals need replacing
films brown?
inadequate developer
depleted fixer
inadequate wash water
milky films?
inadequate fixer
greasy films?
insufficient washing
increased fog?
old film
hot developer
contaminated chemicals
soft emulsion
insufficient fixing
static electricity does what to a film?
causes black and branching lightning like lines on film
rectifier
changes AC to DC
transformer
steps up or steps down the power
transducer
one form of energy to another
attenuation:
beam of radiation loses energy as it passes through matter
green or blue tint is added to?
base of xray film to reduce glare
lateral skull
sella turcica
10x12
40”
no tube tilt
PA caldwell projection
frontal sinsu
10x12
40”
15 degrees caudal
AP towne’s
foramen magnum
10x12
40”
35 degrees caudal
water’s
maxillary sinus
8x10
40”
no tube tilt
neutral lateral cervical
8x10/10x12
40”
no tube tilt
AP lower cervical
8x10
40”
15 cephalic
APOM
dens and atlas
8x10
40”
no tube tilt
cervical obliques
CLAP
8x10
72”
15 anterior caudal, posterior cephalic
posterior oblique
facing tube
anterior obliqeu
facing bucky
flexion
ADI space, transverse ligament stability
10x12
72”
no tube tilt
extension
ADI space, transverse ligament stability
10x12
72”
no tube tilt
cervical pillar
articular processes and apophyseal joints 8x10 40" 35 cephalic PA patient position
AP thoracic
7x17
40”
lateral htoracic
14x17
40”
no tube tilt
filter lower half of thoracic spine
swimmer’s view
cervico-thoracic junction 8x10 40" 5 caudal patient's arm closest to bucky is raised straight above
PA chest
14x17
72”
deep breath and hold
lateral chest
14x17
72”
deep breath and hold
apical lordotic
lung apices 14x17 40" 15 cephalic or have patient lean back deep breath in an hold
AP lumbar
14x17 40" no tube tilt central ray 1" below top of iliac crests breathe in, let it all out
lateral lumbar
IVFS 1417 40" no tube tilt central ray: top of iliac crest at mid-axillary line breathe in, let it all out
L5/S1 spot shot
AKA sacral base tilt AKA ferguson's projections 8x10 40" tube tilt 25 cephalic central ray at level of ASIS don't breathe don't move patient supine
lumbar spine obliques
motive is pars
10x12
40”
no tube tilt
lateral L5/S1 spot shot
8x10
40”
no tube tilt
central ray: 2” inferior to iliac crest and 1” posteiror to mid-axillary line
AP sacrum
8x`10
40”
15 cephalic
central ray 2” superior to pubic symphysis
lateral sacrum
8x10 40" no tube tilt central ray at the level of ASIS 3" posterior to midaxillary line
AP coccyx
8x10
40”
10 caudal
central ray 2” superior to pubic symphysis
lateral coccyx
8x10
40”
no tube tilt
AP angulated SI joints
10x12
40”
30 cephalic
central ray midline 1” below ASIS
AC joints with and without weights
AC joint (bilaterally)
8x10
40”
5 cephalic
AP shoulder with external rotation
greater tuberosity
10x12
40”
AP internal rotation
lesser tuberosity
10x12
40”
axial clavicle
10x12
40”
15 caudal (PA)
15 cephalic (AP)
AP elbow
10x12
40”
no tube tilt
medial (internal oblique elbow)
40”
no tube tilt
seated at end of talbe with shoulder, elbow and wrist gainst table and hand supinated
lateral elbow
40:
no tube tilt
PA wrist
40”
no tube tilt
medial oblique wrist
40”
no tube tilt
lateral wrist
40”
no tube tilt
PA ulnar flexion
40”
20 cephalic
PA hand
40”
no tube tilt
medial oblique hand
40”
no tube tilt
lateral hand
40”
no tube tilt
AP pelvis
14x17 40" no tube tilt feet turned in 15 degrees place top of film 2" above iliac crests
frog leg lateral hip
10x12
40”
no tube tilt
“figure 4 position”
AP knee
8x10 40" 5 cephalic central ray 1/2" inferior to aptellar apex foot turned inward 5 degrees
lateral kne
8x10
40”
5 cephlic
tunne projection
AKA homblad AKA intercondylar fossa 8x19 40" 45 caudal
tangential (sunrise) patella
patella and patellofemoral joint
no tube tilt
prone with knee of interest flexed maximally
AP ankle
distal tibia and fibula, ankle joint and talus
no tube tilt
dorsiflexion
foot turned in 5 degrees
medial oblique ankle
no tube tilt
supine or sitting on the table, leg extended
dorsiflexion
foot turned in 20-30 degrees
lateral ankle
no tube tilt
lateral recumbent position with lateral aspet of ankel of interest losest to table and ankle in dorsiflexion while opposite leg is out of the way
AP dorsophalangeal foot
tarsals distal to talus, metatarsals and phalnges
10 cephalic
sitting on talb eiwth plantar surface of foot flat on cassettee
medial oblique foot
no tube tilt
foot obliqued medially 30 degrees
lateral foot
no tube tilt
ankle dorsiflexed with opposite leg out of the way