Validity and reliability of a novel iPhone method to rapidly measure cervical sagittal parameters
Abstract We introduced a novel method based on the iPhone’s intrinsic photo edit function to measure sagittal parameters of the cervical spine. This study aimed to assess the validity of this new method compared with the picture archiving and communication system (PACS) method (the gold standard) an...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2022-11-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-21660-z |
| _version_ | 1798016908390301696 |
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| author | Jie Zhang Chunyang Zhang Weiyang Zhong Zenghui Zhao Fei Han Zhenghan Han Hang Zhang Tianji Huang Xiaoji Luo |
| author_facet | Jie Zhang Chunyang Zhang Weiyang Zhong Zenghui Zhao Fei Han Zhenghan Han Hang Zhang Tianji Huang Xiaoji Luo |
| author_sort | Jie Zhang |
| collection | DOAJ |
| description | Abstract We introduced a novel method based on the iPhone’s intrinsic photo edit function to measure sagittal parameters of the cervical spine. This study aimed to assess the validity of this new method compared with the picture archiving and communication system (PACS) method (the gold standard) and to test the reliability of this novel technique. One hundred consecutive patients admitted to our hospital diagnosed with cervical spondylotic myelopathy or cervical spondylotic radiculopathy were retrospectively reviewed. Four angles, including the C0-2 Cobb angle, C2-7 Cobb angle, T1S and neck tilt (NT), were assessed by iPhone and PACS. The validity and reliability were evaluated, and the time taken by both methods was compared. The ICCs of the validity of the C0-2 Cobb angle, C2-7 Cobb angle, T1S and NT were 0.960, 0.976, 0.980 and 0.946, respectively. The ICCs of the intraobserver reliability of the C0-2 Cobb angle, C2-7 Cobb angle, T1S and NT were 0.966, 0.983, 0.971 and 0.951, respectively. The ICCs of the interobserver reliability of the C0-2 Cobb angle, C2-7 Cobb angle, T1S and NT were 0.953, 0.972, 0.957 and 0.929, respectively. The Bland‒Altman plot of validity of the four angles revealed mean differences of 0.3, 0.2, 0.1, and 0.1 degrees with 95% CIs of 4.1, 4.1, 2.9, and 4.3 degrees, respectively. The iPhone measurement time (58.55 ± 4.17 s) was significantly less than that by the PACS (70.40 ± 2.92 s) when compared by the independent-samples T test (P < 0.001). This novel method using the iPhone’s intrinsic photo edit function is accurate, reliable, fast and convenient when measuring cervical sagittal parameters. |
| first_indexed | 2024-04-11T15:57:00Z |
| format | Article |
| id | doaj.art-98339bf1bb5c457886fed6878f7ee4be |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-11T15:57:00Z |
| publishDate | 2022-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-98339bf1bb5c457886fed6878f7ee4be2022-12-22T04:15:07ZengNature PortfolioScientific Reports2045-23222022-11-011211810.1038/s41598-022-21660-zValidity and reliability of a novel iPhone method to rapidly measure cervical sagittal parametersJie Zhang0Chunyang Zhang1Weiyang Zhong2Zenghui Zhao3Fei Han4Zhenghan Han5Hang Zhang6Tianji Huang7Xiaoji Luo8Department of Oncology, The First Affiliated Hospital of Chongqing Medical UniversityDepartment of Orthopedic Surgery, People’s Hospital of Chongqing Banan DistrictDepartment of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical UniversityDepartment of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical UniversityDepartment of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical UniversityDepartment of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical UniversityDepartment of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical UniversityDepartment of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical UniversityDepartment of Orthopedic Surgery, The First Affiliated Hospital of Chongqing Medical UniversityAbstract We introduced a novel method based on the iPhone’s intrinsic photo edit function to measure sagittal parameters of the cervical spine. This study aimed to assess the validity of this new method compared with the picture archiving and communication system (PACS) method (the gold standard) and to test the reliability of this novel technique. One hundred consecutive patients admitted to our hospital diagnosed with cervical spondylotic myelopathy or cervical spondylotic radiculopathy were retrospectively reviewed. Four angles, including the C0-2 Cobb angle, C2-7 Cobb angle, T1S and neck tilt (NT), were assessed by iPhone and PACS. The validity and reliability were evaluated, and the time taken by both methods was compared. The ICCs of the validity of the C0-2 Cobb angle, C2-7 Cobb angle, T1S and NT were 0.960, 0.976, 0.980 and 0.946, respectively. The ICCs of the intraobserver reliability of the C0-2 Cobb angle, C2-7 Cobb angle, T1S and NT were 0.966, 0.983, 0.971 and 0.951, respectively. The ICCs of the interobserver reliability of the C0-2 Cobb angle, C2-7 Cobb angle, T1S and NT were 0.953, 0.972, 0.957 and 0.929, respectively. The Bland‒Altman plot of validity of the four angles revealed mean differences of 0.3, 0.2, 0.1, and 0.1 degrees with 95% CIs of 4.1, 4.1, 2.9, and 4.3 degrees, respectively. The iPhone measurement time (58.55 ± 4.17 s) was significantly less than that by the PACS (70.40 ± 2.92 s) when compared by the independent-samples T test (P < 0.001). This novel method using the iPhone’s intrinsic photo edit function is accurate, reliable, fast and convenient when measuring cervical sagittal parameters.https://doi.org/10.1038/s41598-022-21660-z |
| spellingShingle | Jie Zhang Chunyang Zhang Weiyang Zhong Zenghui Zhao Fei Han Zhenghan Han Hang Zhang Tianji Huang Xiaoji Luo Validity and reliability of a novel iPhone method to rapidly measure cervical sagittal parameters Scientific Reports |
| title | Validity and reliability of a novel iPhone method to rapidly measure cervical sagittal parameters |
| title_full | Validity and reliability of a novel iPhone method to rapidly measure cervical sagittal parameters |
| title_fullStr | Validity and reliability of a novel iPhone method to rapidly measure cervical sagittal parameters |
| title_full_unstemmed | Validity and reliability of a novel iPhone method to rapidly measure cervical sagittal parameters |
| title_short | Validity and reliability of a novel iPhone method to rapidly measure cervical sagittal parameters |
| title_sort | validity and reliability of a novel iphone method to rapidly measure cervical sagittal parameters |
| url | https://doi.org/10.1038/s41598-022-21660-z |
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