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23 mar 2023 · The sacrum anteroposterior (AP) view is used to demonstrate the sacrum and its articulations. The efficacy of this radiographic projection is debatable, with radiographers encouraged to follow department protocol when imaging this region 1.
23 mar 2023 · Detection of rotation on an AP axial sacroiliac joint image can be done by ensuring the midsagittal plane of the sacrum is aligned with the symphysis pubis. In a supine position, if the patient is rotated the mid-sagittal plane of the sacrum will move in the direction opposite from the movement of the symphysis pubis.
2 sie 2024 · The sacrum is an irregularly-shaped bone, shaped roughly like an inverted triangle, with its base superior and apex inferior. It is curved with an anterior concavity and posterior convexity.
1 sty 2001 · Cross-sectional imaging, particularly computed tomography and magnetic resonance (MR) imaging, plays a crucial role in identification, localization, and characterization of sacral lesions. Congenital lesions of the sacrum, including sacral agenesis and meningocele, are optimally imaged with MR.
6 kwi 2024 · On MRI, the diagnosis is straightforward: sacral stress fractures are fine irregular stripes that appear hypointense on all sequences within a more-extensive or less-extensive edematous reaction that sometimes dominates the picture.
1 lip 2020 · When dynamic radiography does not reveal the cause of pain, MRI may be performed to depict signal intensity alterations in or surrounding the coccyx, which may be related to the specific site of irritation. In rare instances, MRI may reveal unexpected disease of a more sinister nature.
In MRI, active inflammation of sacroiliac joints is indicated by the presence of subchondral bone marrow edema, synovitis, bursitis, or enthesitis. ASAS discusses only the classic form of axial spondyloarthropathies, which is ankylosing spondylitis.
