Where should the central ray be directed for the AP projection of the lumbar spine?
To project the intervertebral disc spaces open, the central ray should be directed perpendicular to the long axis of the vertebral column 3,4.
Where is the central ray positioned for a lateral sacrum?
|Term How many vertebrae are there in the sacrum?||Definition 5|
|Term The SI joint is a ___ joint:||Definition An irregular and gliding type joint|
|Term Where is the central ray positioned for a lateral coccyx?||Definition 3.5 inches posterior to ASIS and 2 inches inferior|
How many degrees and in which direction should the central ray be directed for the lateral projection of the sacrum?
|Term Which two vertebral curvatures are anteriorly concave?||Definition Thoracic and sacral(pelvic)|
|Term How many degrees and in which direction should the CR be directed for lateral projections of the sacrum?||Definition Perpendicular|
What is the central ray angle for the AP axial projection of the lumbosacral junction?
Angle CR cephalad, 30° for males to 35°for females. CR should enter at the level of the ASIS centered to the midline of the body.
What specific spine anatomy is demonstrated on a lateral projection of the lumbar spine?
XR 105 Midterm
|what specific spine anatomy is demonstrated on a lateral projection of the L spine?||the intervertebral foramina|
|which supplemental projection of the L spine demonstrates the zygapophyseal joints CLOSEST to the film?||AP oblique|
Which of the following is the correct CR for a lateral T spine projection?
|Term What two structures must be parallel to demonstrate the correct anatomy on an AP “Open Mouth” Projection.||Definition The lower margin of the upper incisors and the base of the skull|
|Term What is the CR placement for a Lateral projection of the T-spine?||Definition CR centered at T7|
What is the recommended central ray angle if the lumbar spine Cannot be adjusted so it is horizontal for the lateral projection?
If the lumbar spine cannot be adjusted so it is horizontal for the lateral projection, the CR should be angled 5 degrees for men and 8 degrees caudad for women.
What Cr angle should be used for a lateral sacrum coccyx projection?
The CR is centered 1.5 inches (3-4 cm) inferior to the iliac crest and 2 inches (5 cm) posterior to the ASIS. a. If the waist is not supported, the CR must be angled 5-8 degrees caudad.
What is the central ray for an AP oblique sacroiliac joint?
The AP sacrum projection is part of the sacroiliac series that includes an oblique projection (PA/AP) of the joint on both sides. Although usually taken as an AP projection it can also be taken PA with a reverse caudal central ray angulation of 30° to 35° when patients cannot assume supine position 1.
Which of the following are best demonstrated on a lateral lumbar spine?
Final review Lumbar
|Which projection best demonstrates the intervertebral foramina of the lumbar spine||AP oblique|
|A lateral lumbar spine image should clearly demonstrate the||intervertebral foramina, spinous processes, and disk spaces|
What structure is best visualized on a lumbar oblique projection?
The lumbar spine oblique view is used to visualize the articular facets and pars interarticularis of the lumbar spine.
What are the lateral projections on a typical vertebra called?
|What are the lateral projections on a typical vertebra called?||Transverse processes|
|When viewed from the anatomic position, what type of natural curve is found in the thoracic spine?||Concave|
|What is the name of the process that projects upward from the body of the second cervical vertebra?||Dens|
Which Zygapophyseal joints are demonstrated on the AP oblique projection of the lumbar spine quizlet?
The thoracic zygapophyseal joints are 70 degrees to the MSP and are demonstrated in a steep (70-degree) oblique position. The thoracic intervertebral foramina, formed by the vertebral notches of the pedicles, are 90 degrees to the MSP. They are, therefore, well demonstrated in the lateral position.
Which projection of the lumbar spine displays the vertebrae in the form of a Scottie dog?
|Which projection of the lumbar spine displays the vertebrae in the form of a Scottie dog?||AP and PA oblique|
|What is the central ray angulation for an AP axial protection of the lumbosacral junction?||30-35 degrees cephalic|
|The central ray angular ion for a PA sacrum is ?||15 degrees caudal|
At what angle do the sacroiliac joints sit?
The curvature of the SIJ surfaces is usually less pronounced in women to allow for higher mobility. Also, the pubic angle differs between men and women. An average angle of 50–82 ° is typical for males, compared with an average of 90 ° for women (Bertino, 2000).