Anatomical variation of the sacroiliac joints: an MRI study with synthetic CT images

Vereecke, Elke; Morbée, Lieve; Laloo, Frederiek; Chen, Min; Jaremko, Jacob L.; Herregods, Nele; Jans, Lennart

doi:10.1186/s13244-023-01373-1

Cited by 8 publications

(1 citation statement)

References 21 publications

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“…Ossification of the posterior longitudinal ligament can cause ossification of the sacroiliac joint secondarily in adulthood [ 84 ]. SIJ can undergo a non-syndromic physiological synostosis with aging [ 85 , 86 ]. The sacrum moves between the iliac bones (maximum two millimeters), and if this movement is limited or exaggerated, symptoms such as local or referred pain arise [ 87 ].…”

Section: Reviewmentioning

confidence: 99%

Rethinking the Origin of the Primary Respiratory Mechanism

Bordoni,

Escher

2023

Cureus

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Spheno-occipital synchondrosis (SOS) is the joint regarded as the most important foundation for understanding cranial osteopathy and craniosacral therapy. SOS is the origin of the primary respiratory mechanism (PRM), a movement between the posterior surface of the body of the sphenoid bone and the anterior surface of the base of the occipital bone. From the PRM perspective, an alteration of the position between the two bone surfaces would create cranial and/or craniosacral dysfunction. These positional alterations of the SOS (in adults and children) would determine specific and schematical movements of the bones of the entire skull, whose movements are recognizable by palpation by trained operators. PRM expression is influenced by other elements, such as movement of the cranial bones, inherent movement of the central nervous system, cyclic movement of cerebrospinal fluid (CSF), mechanical tension of the cranial meninges, and passive movement of the sacral bone between the iliac bones. The article reviews the most up-to-date information on the evolution of cranial sutures/joints and meninges in adulthood, the fluctuations of the CSF, brain, and spinal mass movements. Research should reconsider the motivations that induce the operator to discriminate the palpable cranial rhythmic impulse, and probably, to rethink new cranial dysfunctional patterns.

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Section: Reviewmentioning

confidence: 99%

Rethinking the Origin of the Primary Respiratory Mechanism

Bordoni,

Escher

2023

Cureus

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Association of anatomical variants of the sacroiliac joint with bone marrow edema in patients with axial spondyloarthritis

Vereecke,

Jans,

Herregods

et al. 2023

Skeletal Radiol

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Detection of structural lesions of the sacroiliac joints in patients with spondyloarthritis: A comparison of T1-weighted 3D spoiled gradient echo MRI and MRI-based synthetic CT versus T1-weighted turbo spin echo MRI

Krabbe,

Møller,

Hadsbjerg

et al. 2024

Skeletal Radiol

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Objectives To investigate the detection of erosion, sclerosis and ankylosis using 1 mm 3D T1-weighted spoiled gradient echo (T1w-GRE) MRI and 1 mm MRI-based synthetic CT (sCT), compared with conventional 4 mm T1w-TSE. Materials and methods Prospective, cross-sectional study. Semi-coronal 4 mm T1w-TSE and axial T1w-GRE with 1.6 mm slice thickness and 0.8 mm spacing between overlapping slices were performed. The T1w-GRE images were processed into sCT images using a commercial deep learning algorithm, BoneMRI. Both were reconstructed into 1 mm semi-coronal images. T1w-TSE, T1w-GRE and sCT images were assessed independently by 3 expert and 4 non-expert readers for erosion, sclerosis and ankylosis. Cohen’s kappa for inter-reader agreement, exact McNemar test for lesion frequencies and Wilcoxon signed-rank test for confidence in lesion detection were used. Results Nineteen patients with axial spondyloarthritis were evaluated. T1w-GRE increased inter-reader agreement for detecting erosion (kappa 0.42 vs 0.21 in non-experts), increased detection of erosion (57 vs 43 of 152 joint quadrants) and sclerosis (26 vs 17 of 152 joint quadrants) among experts, and increased reader confidence for scoring erosion and sclerosis. sCT increased inter-reader agreement for detecting sclerosis (kappa 0.69 vs 0.37 in experts) and ankylosis (0.71 vs 0.52 in non-experts), increased detection of sclerosis (34 vs 17 of 152 joint quadrants) and ankylosis (20 vs 13 of 76 joint halves) among experts, and increased reader confidence for scoring erosion, sclerosis and ankylosis. Conclusion T1w-GRE and sCT increase sensitivity and reader confidence for the detection of erosion, sclerosis and ankylosis, compared with T1w-TSE. Clinical relevance statement These methods improve the detection of sacroiliac joint structural lesions and might be a useful addition to SIJ MRI protocols both in routine clinical care and as structural outcome measures in clinical trials.

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Anatomical variation of the sacroiliac joints: an MRI study with synthetic CT images

Cited by 8 publications

References 21 publications

Rethinking the Origin of the Primary Respiratory Mechanism

Rethinking the Origin of the Primary Respiratory Mechanism

Association of anatomical variants of the sacroiliac joint with bone marrow edema in patients with axial spondyloarthritis

Detection of structural lesions of the sacroiliac joints in patients with spondyloarthritis: A comparison of T1-weighted 3D spoiled gradient echo MRI and MRI-based synthetic CT versus T1-weighted turbo spin echo MRI

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