skull positioning for comp
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| Lateral skull positioning | MSP parallel, IOML parallel to long axis of IR, IPL perpendicular to IR.
🗑
|
||||
| CR entry lateral skull | 2” superior to the EAM
🗑
|
||||
| Eval criteria lateral skull | cranium without rotation or tilt, sella turcica in profile, superimposed orbital roofs, greater wings of sphenoid, EAM and TMJ
🗑
|
||||
| PA axial skull alternate name | Caldwell
🗑
|
||||
| Caldwell for skull positioning | MSP centered, pt forehead and nose touch bucky, OML perpendicular
🗑
|
||||
| CR entry for Caldwell skull | 15 degrees caudad exiting the nasion
🗑
|
||||
| CR entry for Caldwell skull for frontal bone | CR perpendicular
🗑
|
||||
| CR entry for Caldwell skull for superior orbital fissures | CR 20-25 degrees caudad
🗑
|
||||
| CR entry for Caldwell skull for rotundrum foramina | CR 25-30 degrees caudad
🗑
|
||||
| Eval for Caldwell skull | symmetric petrous ridges, no tilt or rotation, petrous ridges lie in the lower 1/3 of the orbits (w/ angle), petrous ridges fill the orbits (no angle)
🗑
|
||||
| AP axial skull alternate name | Towne
🗑
|
||||
| Towne skull positioning | TOF at cranial vertex, OML perpendicular to IR or IOML perpendicular (changes tube angle)
🗑
|
||||
| CR entry Towne for skull | CR enters 2 ½” above glabella, angle 30 degrees caudad when OML perp. Angle 37 degrees when IOML perp.
🗑
|
||||
| Eval criteria Towne for skull | no rotation or tilt, symmetric petrous ridges, dorsum sellae and posterior clinoid process seen through foramen magnum.
🗑
|
||||
| What piece of anatomy is used to determine rotation on a Towne skull? | foramen magnum
🗑
|
||||
| A Towne for skull is done to view: | the occipital bone
🗑
|
||||
| The Caldwell for skull is done to view: | the frontal bone
🗑
|
||||
| SMV for skull positioning | vertex touches bucky, MSP perpendicular, IOML parallel to IR
🗑
|
||||
| SMV for skull CR entry | perpendicular to IOML, midway between the mandibular angles ¾” anterior to the level of the EAM
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
annaluz87
Popular Radiology sets