MRI detection of radiographically occult fractures of the hip and pelvis in the elderly: Comparison of T2-weighted Dixon sequence with T1-weighted and STIR sequences

Heynen, B.; Tamigneaux, C.; Pasoglou, Vassiliki; Berg, BC Vande; Kirchgesner, Thomas

doi:10.1016/j.diii.2018.11.008

Cited by 18 publications

(10 citation statements)

References 24 publications

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“…As in the case of metastases, the T2-weighted Dixon sequence might be an appropriate alternative to the standard protocol (combination of T1-weighted and fatsuppressed fluid-sensitive sequences) to search for spinal focal MM lesions. Nevertheless, Heynen et al showed that T2-weighted Dixon fat-only images had no significantly different interobserver agreement but were less sensitive than T1-weighted images for the detection of hip and pelvic occult fractures [17]. Due to this specific interest of T1-weighted images, it seems premature to take the opportunity to shorten imaging time by removing the T1weighted sequence from the protocol.…”

Section: Discussionmentioning

confidence: 99%

Improved contrast for myeloma focal lesions with T2-weighted Dixon images compared to T1-weighted images

Danner

Brumpt

Alilet

et al. 2019

Diagnostic and Interventional Imaging

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Section: Discussionmentioning

confidence: 99%

Improved contrast for myeloma focal lesions with T2-weighted Dixon images compared to T1-weighted images

Danner

Brumpt

Alilet

et al. 2019

Diagnostic and Interventional Imaging

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“…For the assessment of the fracture age, STIR- and T1-weighted sequences are usually acquired to identify edema-equivalent bone marrow changes, which are considered to be highly specific for bone marrow edema after an acute trauma [ 12 , 13 ]. Recent studies also suggested the use of a T2-weighted Dixon sequence for the detection of occult fractures and the differentiation of malignant versus benign vertebral fractures in order to shorten the examination duration [ 14 , 15 ]. Nevertheless, accurate examination of the spine with regular morphological sequences or with a combination of the sequences mentioned previously would take at least 10 to 15 min and require several MR sequences.…”

Section: Introductionmentioning

confidence: 99%

Diagnostic value of water-fat-separated images and CT-like susceptibility-weighted images extracted from a single ultrashort echo time sequence for the evaluation of vertebral fractures and degenerative changes of the spine

et al. 2022

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Objectives To evaluate the performance of single-echo Dixon water-fat imaging and computed tomography (CT)–like imaging based on a single ultrashort echo time (sUTE) MR sequence for imaging of vertebral fractures as well as degenerative bone changes of the spine in comparison to conventional CT and MR sequences. Methods Thirty patients with suspected acute vertebral fractures were examined using a 3-T MRI, including an sUTE sequence as well as short-tau inversion recovery (STIR) and T1-weighted sequences. During postprocessing, water-fat separation was performed by solving the smoothness-constrained inverse water-fat problem based on a single-complex UTE image. By removing the unwanted low-frequency phase terms, additional MR-based susceptibility-weighted-like (SW-like) images with CT-like contrast were created. Two radiologists evaluated semi-quantitative and quantitative features of fractures and degenerative changes independently and separately on CT and MR images. Results In total, all 58 fractures were accurately detected of whom 24 were correctly classified as acute fractures with an edema detected on the water-fat-separated UTE images, using STIR and T1w sequences as standard of reference. For the morphological assessment of fractures and degenerative changes, the overall agreement between SW-like images and CT was substantial to excellent (e.g., Genant: κ 0.90 (95% confidence interval 0.54–1.00); AO/Magerl: κ 0.75 (95% confidence interval 0.43–1.00)). Overall inter-reader agreement for water-fat-separated UTE images and SW-like images was substantial to almost perfect. Conclusion Detection and assessment of vertebral fractures and degenerative bone changes of the spine were feasible and accurate using water-fat-separated images as well as SW-like images, both derived from the same sUTE-Dixon sequence. Key Points • The detection of acute vertebral fractures was feasible using water-fat-separated images and CT-like images reconstructed from one sUTE sequence. • Assessment of the vertebral fractures using SW-like images with CT-like contrast was found to be comparable to conventional CT. • sUTE imaging of the spine can help reduce examination times and radiation exposure.

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“…STIR has until now been the most frequently used water-sensitive sequence in whole-body MRI-protocols [1] but has shown similar performance for T2W Dixon compared to STIR in the assessment of the bone marrow [68]. Any differences between sequences are more likely dependent on general technical parameters, hardware, software, and differences in patient handling.…”

Section: Limitations and Strengthsmentioning

confidence: 99%

Whole body magnetic resonance imaging in healthy children and adolescents. Bone marrow appearances of the axial skeleton

Brandis¹,

Zadig²,

Avenarius³

et al. 2022

European Journal of Radiology

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MRI detection of radiographically occult fractures of the hip and pelvis in the elderly: Comparison of T2-weighted Dixon sequence with T1-weighted and STIR sequences

Cited by 18 publications

References 24 publications

Improved contrast for myeloma focal lesions with T2-weighted Dixon images compared to T1-weighted images

Improved contrast for myeloma focal lesions with T2-weighted Dixon images compared to T1-weighted images

Diagnostic value of water-fat-separated images and CT-like susceptibility-weighted images extracted from a single ultrashort echo time sequence for the evaluation of vertebral fractures and degenerative changes of the spine

Whole body magnetic resonance imaging in healthy children and adolescents. Bone marrow appearances of the axial skeleton

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