Pelvimetry by magnetic resonance imaging as a diagnostic tool to evaluate dystocia

Spörri, Stefan; Hänggi, W.; Braghetti, Antonio; Vock, Peter; Schneider, H.

doi:10.1016/s0029-7844(97)00148-8

Cited by 56 publications

(45 citation statements)

References 15 publications

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“…J. Morphol., 34(1):298-304, 2016. cm (Harper et al;Huerta-Enochian et al;Lenhard et al, 2009Lenhard et al, , 2010Spörri et al, 1997Spörri et al, , 2002. The results obtained in Iranian, American, German and Swiss populations coincide with ours (Table V).…”

Section: Discussionsupporting

confidence: 89%

“…As reported in other populations, the OCD varies between 10.7 and 12.5 cm (Daghighi et al;Huerta-Enochian et al;Lenhard et al, 2009Lenhard et al, , 2010Spörri et al, 1997Spörri et al, , 2002 and ISD varies between 9.6 cm and 10.8 Int. J.…”

Section: Discussionsupporting

confidence: 78%

“…There are few studies in the literature that analyze normal pelvic diameters in the general population (Lenhard et al, 2010), as most of these are determined in pregnant women during labor (Daghighi et al;Harper et al;HuertaEnochian et al;Korhonen et al, 2010;Lenhard et al, 2009;Spörri et al, 1997Spörri et al, , 2002. More importantly, no study has established a difference in these parameters regarding age.…”

Section: Discussionmentioning

confidence: 99%

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Pelvimetry by Reformatted Computed Tomography in 290 Female Pelvis: Morphometric Variations Regarding Age

et al. 2016

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SUMMARY:The Mexican government passed a new reform of article 11 of the General Law in 2014 regarding Women's Access to a Life Free of Violence, which states that a cesarean section may not be performed if a vaginal birth is viable. Cesarean sections are excessively indicated in Northen Mexico, using the diagnosis of cephalopelvic disproportion due to a narrow pelvis. Currently, there is no standardized morphometry of the female pelvis in a Mexican population to establish adequate diagnostic parameter. Our study measures the pelvic diameters of the birth canal using abdominopelvic computed tomography (CT). Two hundred and ninety CT from Mexican women between the ages of 18 and 50 were collected and 3D reformatted in order to morphologically measure the pelvic diameters of clinical relevance. Measurements were conducted by two diagnostic imaging specialists. The mean and standard deviation of the measured diameters were: anatomical conjugate diameter (ACD) 11.65±0.99 cm, the obstetric conjugate diameter (OCD) 11.73±0.98 cm, diagonal conjugate diameter (DCD) 12.49±0.98 cm and Interspinous distance (ISD) 10.41±0.78 cm. Significant differences were found in all four mean diameters in between the 20-29 age groups versus the >40, as well as between the 30-39 groups versus the >40. Our study shows that as Mexican women get older, the mean pelvic diameters become narrower.

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Section: Discussionsupporting

confidence: 89%

Section: Discussionsupporting

confidence: 78%

Section: Discussionmentioning

confidence: 99%

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Pelvimetry by Reformatted Computed Tomography in 290 Female Pelvis: Morphometric Variations Regarding Age

et al. 2016

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“…Conventional X-ray and CT pelvimetry have been largely abandoned since MRI pelvimetry became available, as exposure to ionising radiation, especially of the foetus, can be avoided [3][4][5][6][7][8][9][10]. In practical clinical application, MRI pelvimetry has shown to have some disadvantages, most importantly the need to correctly acquire the images in the exact plane.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional pelvimetry by computed tomography

et al. 2009

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“…MRI produces a high-quality image allowing accurate measurement of the bony pelvis. One prospective study has demonstrated how MRI could be used to identify women at risk for caesarean section by identifying women with abnormalities on pelvimetry [3]. MRI has also been used to provide improved selection of the route of delivery at term for fetuses in breech presentation, resulting in significant reduction in the emergency caesarean section rate in the study group compared to the controls without compromising neonatal outcome [4].…”

Section: Introductionmentioning

confidence: 99%

Intra- and Inter-Observer Reproducibility of Ultrasound Measurements of Pelvic Inlet Diameter in Pregnant Women

Wah¹,

Chan²,

Sahota³

et al. 2014

OJOG

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Objectives: To determine intra-and inter-observer reproducibility of the ultrasound measurement of pelvic inlet in the first trimester of pregnancy. Methods: Transabdominal pelvic ultrasound was performed to measure the pelvic inlet anteroposterior diameter using a 2D probe in twelve Chinese women having a singleton pregnancy. Scans were performed in the first trimester by three sonographers. The pelvic inlet anteroposterior diameter was defined as the distance between the anterior surfaces of the sacral promontory and the superior medial border of the pubic bone most adjacent to the pubic symphysis. Intra-observer repeatability was determined and analysis of variance was performed to assess inter-observer measurements. The bias between any two sonographers' measurements was assessed by calculating the 95% confidence interval for the mean difference between sonographers paired measurements. Results: Intra-observer reproducibility was 0.71 cm. Analysis of variance indicated that there was no significant difference between sonographers' measurements (p = 0.46). The bias between two sonographers' measurements ranged from 0.05 to 0.32 cm. Conclusion: It is technically feasible to measure the pelvic inlet diameter using ultrasound (USG) at the first trimester. High inter-observer reproducibility can be achieved. Further studies are required to establish the potential role of this technique and the measurement of the pelvic inlet diameter in prediction of labor outcome.

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Pelvimetry by magnetic resonance imaging as a diagnostic tool to evaluate dystocia

Cited by 56 publications

References 15 publications

Pelvimetry by Reformatted Computed Tomography in 290 Female Pelvis: Morphometric Variations Regarding Age

Pelvimetry by Reformatted Computed Tomography in 290 Female Pelvis: Morphometric Variations Regarding Age

Three-dimensional pelvimetry by computed tomography

Intra- and Inter-Observer Reproducibility of Ultrasound Measurements of Pelvic Inlet Diameter in Pregnant Women

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