Effects of Sex, Age and Height on Symphysis–Ischial Spine Distance Measured on a Pelvic CT
Objective: To examine the influence of age, sex and height on the symphysis–ischial spine distance (SID) measured on pelvic Computed tomography (CT)images in subjects of reproductive age, and to determine the interobserver reproducibility. This measurement (SID) is of great importance because the us...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-04-01
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| Series: | Journal of Clinical Medicine |
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| Online Access: | https://www.mdpi.com/2077-0383/11/9/2395 |
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| author | Daniel Sánchez García Alejandra Aguado del Hoyo María Sánchez Pérez Santiago García-Tizón Larroca Yolanda Ruiz Martín Isabel Gordillo Gutiérrez Coral Bravo Arribas Melchor Alvarez-Mon Miguel A. Ortega Juan De Leon-Luis |
| author_facet | Daniel Sánchez García Alejandra Aguado del Hoyo María Sánchez Pérez Santiago García-Tizón Larroca Yolanda Ruiz Martín Isabel Gordillo Gutiérrez Coral Bravo Arribas Melchor Alvarez-Mon Miguel A. Ortega Juan De Leon-Luis |
| author_sort | Daniel Sánchez García |
| collection | DOAJ |
| description | Objective: To examine the influence of age, sex and height on the symphysis–ischial spine distance (SID) measured on pelvic Computed tomography (CT)images in subjects of reproductive age, and to determine the interobserver reproducibility. This measurement (SID) is of great importance because the use of intrapartum ultrasound is based on the assumption of a specific value (30 mm) of such a measurement. Methods: This was a cross-sectional descriptive study in which SID was measured in subjects aged 20 to 44 years who had been scheduled for pelvic CT at our centre from January 2018 to May 2021 for different reasons. Radiographic measurements of the pelvis were obtained through the multiplanar reconstruction of the CT image. The images obtained from all of the participants were independently assessed by three senior radiologists, and the SID measurements made by each one were blinded from those of the remaining observers. Correlations between the SID and patient age, height and sex were analyzed by univariate and multivariate linear regression. Results: The mean SID for 87 of the enrolled participants (45 women, 42 men) was 28.2 ± 6.25 mm. Among the observers, the mean difference in this distance was 1 to 2 mm, and was scarcely related to measurement size, with agreement being greater than 70%. The mean SID was significantly related to sex and height (SID = −24.9 − 6.51 × sex (0 or 1) + 0.34 × height (cm); <i>p</i> = 0.01; sex equals 1 for a man and 0 for a woman), such that it was a mean of 2.5 mm greater in women than men (29.50 mm vs. 26.99 mm). Conclusion: Measurements of SID on CT images show good interobserver reproducibility, and are related to sex and height. |
| first_indexed | 2024-03-10T04:02:25Z |
| format | Article |
| id | doaj.art-6c2daaf8ec51407780233560d0cb0b1a |
| institution | Directory Open Access Journal |
| issn | 2077-0383 |
| language | English |
| last_indexed | 2024-03-10T04:02:25Z |
| publishDate | 2022-04-01 |
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| series | Journal of Clinical Medicine |
| spelling | doaj.art-6c2daaf8ec51407780233560d0cb0b1a2023-11-23T08:31:43ZengMDPI AGJournal of Clinical Medicine2077-03832022-04-01119239510.3390/jcm11092395Effects of Sex, Age and Height on Symphysis–Ischial Spine Distance Measured on a Pelvic CTDaniel Sánchez García0Alejandra Aguado del Hoyo1María Sánchez Pérez2Santiago García-Tizón Larroca3Yolanda Ruiz Martín4Isabel Gordillo Gutiérrez5Coral Bravo Arribas6Melchor Alvarez-Mon7Miguel A. Ortega8Juan De Leon-Luis9Department of Radiology, University Hospital Gregorio Marañón, 28009 Madrid, SpainDepartment of Radiology, University Hospital Gregorio Marañón, 28009 Madrid, SpainDepartment of Radiology, University Hospital Gregorio Marañón, 28009 Madrid, SpainGroup of Pathophysiology in Women, Pregnancy, Labor, and Puerperium, Health Research Institute Gregorio Marañón, 28040 Madrid, SpainDepartment of Radiology, University Hospital Gregorio Marañón, 28009 Madrid, SpainDepartment of Radiology, University Hospital Gregorio Marañón, 28009 Madrid, SpainGroup of Pathophysiology in Women, Pregnancy, Labor, and Puerperium, Health Research Institute Gregorio Marañón, 28040 Madrid, SpainDepartment of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcala de Henares, SpainDepartment of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, 28801 Alcala de Henares, SpainGroup of Pathophysiology in Women, Pregnancy, Labor, and Puerperium, Health Research Institute Gregorio Marañón, 28040 Madrid, SpainObjective: To examine the influence of age, sex and height on the symphysis–ischial spine distance (SID) measured on pelvic Computed tomography (CT)images in subjects of reproductive age, and to determine the interobserver reproducibility. This measurement (SID) is of great importance because the use of intrapartum ultrasound is based on the assumption of a specific value (30 mm) of such a measurement. Methods: This was a cross-sectional descriptive study in which SID was measured in subjects aged 20 to 44 years who had been scheduled for pelvic CT at our centre from January 2018 to May 2021 for different reasons. Radiographic measurements of the pelvis were obtained through the multiplanar reconstruction of the CT image. The images obtained from all of the participants were independently assessed by three senior radiologists, and the SID measurements made by each one were blinded from those of the remaining observers. Correlations between the SID and patient age, height and sex were analyzed by univariate and multivariate linear regression. Results: The mean SID for 87 of the enrolled participants (45 women, 42 men) was 28.2 ± 6.25 mm. Among the observers, the mean difference in this distance was 1 to 2 mm, and was scarcely related to measurement size, with agreement being greater than 70%. The mean SID was significantly related to sex and height (SID = −24.9 − 6.51 × sex (0 or 1) + 0.34 × height (cm); <i>p</i> = 0.01; sex equals 1 for a man and 0 for a woman), such that it was a mean of 2.5 mm greater in women than men (29.50 mm vs. 26.99 mm). Conclusion: Measurements of SID on CT images show good interobserver reproducibility, and are related to sex and height.https://www.mdpi.com/2077-0383/11/9/2395symphysis–ischial spine distancepelvic CT imagesreproducibility |
| spellingShingle | Daniel Sánchez García Alejandra Aguado del Hoyo María Sánchez Pérez Santiago García-Tizón Larroca Yolanda Ruiz Martín Isabel Gordillo Gutiérrez Coral Bravo Arribas Melchor Alvarez-Mon Miguel A. Ortega Juan De Leon-Luis Effects of Sex, Age and Height on Symphysis–Ischial Spine Distance Measured on a Pelvic CT Journal of Clinical Medicine symphysis–ischial spine distance pelvic CT images reproducibility |
| title | Effects of Sex, Age and Height on Symphysis–Ischial Spine Distance Measured on a Pelvic CT |
| title_full | Effects of Sex, Age and Height on Symphysis–Ischial Spine Distance Measured on a Pelvic CT |
| title_fullStr | Effects of Sex, Age and Height on Symphysis–Ischial Spine Distance Measured on a Pelvic CT |
| title_full_unstemmed | Effects of Sex, Age and Height on Symphysis–Ischial Spine Distance Measured on a Pelvic CT |
| title_short | Effects of Sex, Age and Height on Symphysis–Ischial Spine Distance Measured on a Pelvic CT |
| title_sort | effects of sex age and height on symphysis ischial spine distance measured on a pelvic ct |
| topic | symphysis–ischial spine distance pelvic CT images reproducibility |
| url | https://www.mdpi.com/2077-0383/11/9/2395 |
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