Comparison of pointwise encoding time reduction with radial acquisition (PETRA) imaging with conventional MR imaging for the diagnosis of traumatic fractures in children
Abstract Purpose This study aimed to determine whether adding pointwise encoding time reduction with radial acquisition (PETRA) images to conventional magnetic resonance (MR) imaging improves the depiction and characterization of traumatic fractures in pediatric patients. Methods Twenty-nine pediatr...
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BMC
2025-02-01
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| Series: | BMC Medical Imaging |
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| Online Access: | https://doi.org/10.1186/s12880-025-01594-4 |
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| author | Xiamei Zhuang Ke Jin Xiaoming Li Junwei Li Yan Yin Zhang Huiting Hong Liu Meitao Liu |
| author_facet | Xiamei Zhuang Ke Jin Xiaoming Li Junwei Li Yan Yin Zhang Huiting Hong Liu Meitao Liu |
| author_sort | Xiamei Zhuang |
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| description | Abstract Purpose This study aimed to determine whether adding pointwise encoding time reduction with radial acquisition (PETRA) images to conventional magnetic resonance (MR) imaging improves the depiction and characterization of traumatic fractures in pediatric patients. Methods Twenty-nine pediatric subjects with fractures and a control group of twenty individuals without fractures were included. Two independent observers assessed conventional MR, PETRA, and combined MRI + PETRA images, documenting the presence of fractures, bone fragments, callus formation, displacement, size, and angles of fractures. Results Diagnostic accuracy was higher for combined conventional MR with PETRA images than for conventional MR or PETRA alone in detecting fractures (area under curve (AUC): 0.86 for conventional MR, 0.97 for PETRA, 1.00 for combined), callus formation (AUC: 0.67 conventional MR, 0.82 PETRA, 0.86 combined), and bone fragments (AUC: 0.89 conventional MR, 0.96 PETRA, 0.97 combined). PETRA images improved agreement in detecting fractures, especially in the ulna/radius (κ = 0.46 conventional MR, 1.00 PETRA, 1.00 combined) and fibula/talus (κ = 0.42 conventional MR, 1.00 PETRA, 1.00 combined), compared to CT. PETRA also enhanced agreement in characterizing callus formation, bone fragments, displacement, size and fracture angles (intraclass correlation > 0.88 for all comparisons), compared to CT. Addition of PETRA images revealed that the differences in the measurements of fragment displacement, size, and fracture angle compared to CT, were not statistically significant (all p > 0.05). Conclusion Adding PETRA images to conventional MR enhances diagnostic accuracy and reliability in detecting fractures among pediatric patients compared to conventional MR alone. Clinical trial number Not applicable. |
| format | Article |
| id | doaj-art-b591a15b8d1f4aba85ddafd46830a2fb |
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| language | English |
| publishDate | 2025-02-01 |
| publisher | BMC |
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| series | BMC Medical Imaging |
| spelling | doaj-art-b591a15b8d1f4aba85ddafd46830a2fb2025-08-20T02:15:19ZengBMCBMC Medical Imaging1471-23422025-02-0125111110.1186/s12880-025-01594-4Comparison of pointwise encoding time reduction with radial acquisition (PETRA) imaging with conventional MR imaging for the diagnosis of traumatic fractures in childrenXiamei Zhuang0Ke Jin1Xiaoming Li2Junwei Li3Yan Yin4Zhang Huiting5Hong Liu6Meitao Liu7Department of Radiology, School of Medicine, The Affiliated Children’s Hospital of Xiangya, Central South University (Hunan Children’s Hospital)Department of Radiology, School of Medicine, The Affiliated Children’s Hospital of Xiangya, Central South University (Hunan Children’s Hospital)Department of Radiology, School of Medicine, The Affiliated Children’s Hospital of Xiangya, Central South University (Hunan Children’s Hospital)Department of Radiology, School of Medicine, The Affiliated Children’s Hospital of Xiangya, Central South University (Hunan Children’s Hospital)Department of Radiology, School of Medicine, The Affiliated Children’s Hospital of Xiangya, Central South University (Hunan Children’s Hospital)MR Research Collaboration Team, Siemens Healthineers Ltd.Department of Radiology, School of Medicine, The Affiliated Children’s Hospital of Xiangya, Central South University (Hunan Children’s Hospital)Department of Radiology, School of Medicine, The Affiliated Children’s Hospital of Xiangya, Central South University (Hunan Children’s Hospital)Abstract Purpose This study aimed to determine whether adding pointwise encoding time reduction with radial acquisition (PETRA) images to conventional magnetic resonance (MR) imaging improves the depiction and characterization of traumatic fractures in pediatric patients. Methods Twenty-nine pediatric subjects with fractures and a control group of twenty individuals without fractures were included. Two independent observers assessed conventional MR, PETRA, and combined MRI + PETRA images, documenting the presence of fractures, bone fragments, callus formation, displacement, size, and angles of fractures. Results Diagnostic accuracy was higher for combined conventional MR with PETRA images than for conventional MR or PETRA alone in detecting fractures (area under curve (AUC): 0.86 for conventional MR, 0.97 for PETRA, 1.00 for combined), callus formation (AUC: 0.67 conventional MR, 0.82 PETRA, 0.86 combined), and bone fragments (AUC: 0.89 conventional MR, 0.96 PETRA, 0.97 combined). PETRA images improved agreement in detecting fractures, especially in the ulna/radius (κ = 0.46 conventional MR, 1.00 PETRA, 1.00 combined) and fibula/talus (κ = 0.42 conventional MR, 1.00 PETRA, 1.00 combined), compared to CT. PETRA also enhanced agreement in characterizing callus formation, bone fragments, displacement, size and fracture angles (intraclass correlation > 0.88 for all comparisons), compared to CT. Addition of PETRA images revealed that the differences in the measurements of fragment displacement, size, and fracture angle compared to CT, were not statistically significant (all p > 0.05). Conclusion Adding PETRA images to conventional MR enhances diagnostic accuracy and reliability in detecting fractures among pediatric patients compared to conventional MR alone. Clinical trial number Not applicable.https://doi.org/10.1186/s12880-025-01594-4ChildrenFractureMagnetic resonance imagingUltrashort echo timePoint-to-point encoding time reduction of radial acquisition |
| spellingShingle | Xiamei Zhuang Ke Jin Xiaoming Li Junwei Li Yan Yin Zhang Huiting Hong Liu Meitao Liu Comparison of pointwise encoding time reduction with radial acquisition (PETRA) imaging with conventional MR imaging for the diagnosis of traumatic fractures in children BMC Medical Imaging Children Fracture Magnetic resonance imaging Ultrashort echo time Point-to-point encoding time reduction of radial acquisition |
| title | Comparison of pointwise encoding time reduction with radial acquisition (PETRA) imaging with conventional MR imaging for the diagnosis of traumatic fractures in children |
| title_full | Comparison of pointwise encoding time reduction with radial acquisition (PETRA) imaging with conventional MR imaging for the diagnosis of traumatic fractures in children |
| title_fullStr | Comparison of pointwise encoding time reduction with radial acquisition (PETRA) imaging with conventional MR imaging for the diagnosis of traumatic fractures in children |
| title_full_unstemmed | Comparison of pointwise encoding time reduction with radial acquisition (PETRA) imaging with conventional MR imaging for the diagnosis of traumatic fractures in children |
| title_short | Comparison of pointwise encoding time reduction with radial acquisition (PETRA) imaging with conventional MR imaging for the diagnosis of traumatic fractures in children |
| title_sort | comparison of pointwise encoding time reduction with radial acquisition petra imaging with conventional mr imaging for the diagnosis of traumatic fractures in children |
| topic | Children Fracture Magnetic resonance imaging Ultrashort echo time Point-to-point encoding time reduction of radial acquisition |
| url | https://doi.org/10.1186/s12880-025-01594-4 |
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