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Citation, DOI & article dataCitation: Nguyen, M., Murphy, A. Cervical spine (AP oblique view). Reference article, Radiopaedia.org. (accessed on 08 Sep 2022) https://doi.org/10.53347/rID-51497 The AP oblique cervical spine projections are supplementary views to the standard AP, odontoid and lateral images in the cervical spine series and are always done bilaterally for comparison purposes. However, the PA oblique projection is preferred as it reduces radiation dose to the thyroid 1 compared to the AP oblique projection. On this page:This projection can be used to visualize pathology involving the adjacent soft tissue structures or cervical spine, especially stenosis of the intervertebral foramina. Note: Such views should not be performed on trauma patients without the strict instructions of a qualified clinician who has reviewed the lateral cervical spine image or CT of the cervical spine. Moving the patient's head or neck, or removing a cervical collar could be detrimental.
To demonstrate the intervertebral foramen of the c-spine open, it is necessary to achieve adequate rotation of the vertebral column, usually at 45°. If underrotated, the foramina will be narrowed and a sternoclavicular joint would be superimposed over the vertebral column 3. Over rotation of more than 45° would cause one pedicle to be foreshortened while the other pedicle aligns to the midline of the vertebral bodies 2. ReferencesRelated articles: Imaging in practicePromoted articles (advertising)What is the central ray direction for AP cervical spine?B: For the AP view of the cervical spine, the patient is either erect or recumbent. The beam is directed toward the C-4 vertebra (at the Adam's apple) at an angle of 15°-20° cephalad.
What is the central ray centering point for an AP oblique lumbar spine?What is the central-ray centering point for an AP oblique lumbar spine? 2 inches medial to the elevated ASIS and 1 1/2 inches above the iliac crests. If the lumbar spine cannot be adjusted so it is horizontal for the lateral projection, the central ray should be angled: 5 degrees men, 8 degrees women - caudad.
What is the CR angle and direction for the AP axial oblique projection of the cervical vertebrae?What is the proper CR angle and direction for the AP oblique projections of the cervical spine? 15 degrees cephalic. What is the proper patient position for an AP oblique projection of the cervical spine? 45 degree posterior oblique position.
What is the proper patient position for an AP oblique projection of the cervical spine?XR 105 Midterm. |