Fat-suppressed T2 mapping of human knee femoral articular cartilage: comparison with conventional T2 mapping
Abstract Background There is paucity of studies applying fat suppressed (FS) technique to T2 mapping to overcome chemical shift artifacts. The purpose of the study is to difference between FS T2 and conventional T2 mapping and reproducibility of FS T2 mapping in the femoral articular cartilage. Meth...
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BMC
2021-08-01
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| Series: | BMC Musculoskeletal Disorders |
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| Online Access: | https://doi.org/10.1186/s12891-021-04542-9 |
| _version_ | 1818717897752576000 |
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| author | Bo Ram Kim Hye Jin Yoo Hee-Dong Chae Sung Hwan Hong Ja-Young Choi |
| author_facet | Bo Ram Kim Hye Jin Yoo Hee-Dong Chae Sung Hwan Hong Ja-Young Choi |
| author_sort | Bo Ram Kim |
| collection | DOAJ |
| description | Abstract Background There is paucity of studies applying fat suppressed (FS) technique to T2 mapping to overcome chemical shift artifacts. The purpose of the study is to difference between FS T2 and conventional T2 mapping and reproducibility of FS T2 mapping in the femoral articular cartilage. Methods Eighteen patients who had normal-looking femoral cartilage and underwent knee MRI with conventional T2 and FS T2 mapping were included. T2 values of each mapping were measured by two readers independently from nine regions in the medial femoral condyle (MFC) and lateral femoral condyle (LFC). Each anatomical region was divided by lines at ± 10°, 30°, 50°, 70°, 90°, and 110°. Comparisons of T2 values between conventional and FS T2 mapping were statistically analyzed. The T2 values between FS and conventional T2 mapping in the anterior, central and posterior femoral condyles were compared. Results The overall femoral condyle T2 values from the FS T2 map were significantly lower than those from the conventional T2 map (48.5ms vs. 51.0ms, p < 0.001). The differences in the T2 values between the two maps were significantly different among the three divisions of the LFC (p = 0.009) and MFC (p = 0.031). The intra-class correlation coefficients indicated higher agreement in the FS T2 map than in the conventional T2 map (0.943 vs. 0.872). Conclusions The T2 values of knee femoral cartilage are significantly lower on FS T2 mapping than on conventional T2 mapping. FS T2 mapping is a more reproducible method for evaluating knee femoral cartilage. |
| first_indexed | 2024-12-17T19:42:27Z |
| format | Article |
| id | doaj.art-62a9fa92b2f540019507da3ed21bf775 |
| institution | Directory Open Access Journal |
| issn | 1471-2474 |
| language | English |
| last_indexed | 2024-12-17T19:42:27Z |
| publishDate | 2021-08-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Musculoskeletal Disorders |
| spelling | doaj.art-62a9fa92b2f540019507da3ed21bf7752022-12-21T21:34:58ZengBMCBMC Musculoskeletal Disorders1471-24742021-08-012211810.1186/s12891-021-04542-9Fat-suppressed T2 mapping of human knee femoral articular cartilage: comparison with conventional T2 mappingBo Ram Kim0Hye Jin Yoo1Hee-Dong Chae2Sung Hwan Hong3Ja-Young Choi4Department of Radiology, Seoul National University Bundang HospitalDepartment of Radiology, Seoul National University HospitalDepartment of Radiology, Seoul National University HospitalDepartment of Radiology, Seoul National University HospitalDepartment of Radiology, Seoul National University HospitalAbstract Background There is paucity of studies applying fat suppressed (FS) technique to T2 mapping to overcome chemical shift artifacts. The purpose of the study is to difference between FS T2 and conventional T2 mapping and reproducibility of FS T2 mapping in the femoral articular cartilage. Methods Eighteen patients who had normal-looking femoral cartilage and underwent knee MRI with conventional T2 and FS T2 mapping were included. T2 values of each mapping were measured by two readers independently from nine regions in the medial femoral condyle (MFC) and lateral femoral condyle (LFC). Each anatomical region was divided by lines at ± 10°, 30°, 50°, 70°, 90°, and 110°. Comparisons of T2 values between conventional and FS T2 mapping were statistically analyzed. The T2 values between FS and conventional T2 mapping in the anterior, central and posterior femoral condyles were compared. Results The overall femoral condyle T2 values from the FS T2 map were significantly lower than those from the conventional T2 map (48.5ms vs. 51.0ms, p < 0.001). The differences in the T2 values between the two maps were significantly different among the three divisions of the LFC (p = 0.009) and MFC (p = 0.031). The intra-class correlation coefficients indicated higher agreement in the FS T2 map than in the conventional T2 map (0.943 vs. 0.872). Conclusions The T2 values of knee femoral cartilage are significantly lower on FS T2 mapping than on conventional T2 mapping. FS T2 mapping is a more reproducible method for evaluating knee femoral cartilage.https://doi.org/10.1186/s12891-021-04542-9MRICartilageKneeT2 mappingFat suppression techniqueRelaxomatry |
| spellingShingle | Bo Ram Kim Hye Jin Yoo Hee-Dong Chae Sung Hwan Hong Ja-Young Choi Fat-suppressed T2 mapping of human knee femoral articular cartilage: comparison with conventional T2 mapping BMC Musculoskeletal Disorders MRI Cartilage Knee T2 mapping Fat suppression technique Relaxomatry |
| title | Fat-suppressed T2 mapping of human knee femoral articular cartilage: comparison with conventional T2 mapping |
| title_full | Fat-suppressed T2 mapping of human knee femoral articular cartilage: comparison with conventional T2 mapping |
| title_fullStr | Fat-suppressed T2 mapping of human knee femoral articular cartilage: comparison with conventional T2 mapping |
| title_full_unstemmed | Fat-suppressed T2 mapping of human knee femoral articular cartilage: comparison with conventional T2 mapping |
| title_short | Fat-suppressed T2 mapping of human knee femoral articular cartilage: comparison with conventional T2 mapping |
| title_sort | fat suppressed t2 mapping of human knee femoral articular cartilage comparison with conventional t2 mapping |
| topic | MRI Cartilage Knee T2 mapping Fat suppression technique Relaxomatry |
| url | https://doi.org/10.1186/s12891-021-04542-9 |
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