4b. Thoracic Spine Flashcards
what is the SID for thoracic spine views
110cm
what is the kV for thoracic spine views
75-85kV
what is the mAs for thoracic spine views
20mAs
do you use grids for thoracic views
yes
what is the breathing instruction for thoracic spine
suspend respiration on expiration
what is the CP for AP thoracic spine views
perpendicular to the T7 level, 8-10cm below the jugular notch
1/2 way between jugular notch and xiphisternum
what is the patient positioning for AP thoracic spine views
in terms of patient body, which end should be placed under the cathode end, rotation and what should be flexed
supine
lower T spine at cathode end
no thorax/pelvis rotation
flex hips/knees
for a AP thoracic spine what should be aligned and centered to the table/IR midline
MSP
what is the collimation for the AP thoracic spine
C7/T1 to T12/L1
include costo-transverse joint laterally
what is the CP for lateral thoracic spine
Perpendicular to T7 at inf scapula border
8-10cm below jugular notch
what is the patient positioning for the lateral thoracic spine views
in terms of patient body position, knees and elbows, arms and what can be done to keep spine parallel
Recumbent lateral
knees & elbows flexed
arms raised
Supports under spine so spine parallel to tabletop
for a lateral thoracic spine what should be aligned and centered to the table/IR midline
Mid-axillary plane aligned to table/IR midline
what is the image critique for AP thoracic spine in terms of the positioning
what shows no rotation
SC joints equidistant from the midline = no rotation
what is the image critique for lateral thoracic spine in terms of the positioning
intervertebral disk spaces open
what is the image critique for AP ad lateral thoracic spine in terms of the area of interest
from where to where
4 things
C7/T1 - L1
12 thoracic bodies
Intervertebral joint spaces
Spinous and transverse processes
