Sonographic measurement of cervical volume in nonpregnant women using the geometric formula for a cylinder versus the three‐dimensional automated virtual organ computer‐aided analysis (vocal)

Papoutsis, Dimitrios; Antonakou, Angeliki; Rodolakis, Alexandros; Mesogitis, S.; Antsaklis, Aris

doi:10.1002/jcu.20833

Cited by 12 publications

(11 citation statements)

References 17 publications

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“…Opposite to our results, they reported good intermethod agreement (mean difference, −0.78%; 95% limits of agreement, –17.59% to 16.03%). Additionally, measurements made by the formula for a cylinder were slightly greater than VOCAL by a mean difference ± SE of 0.78% ± 0.95% . However, the study did not consider the difference between r1 and r2 .…”

Section: Discussionmentioning

confidence: 88%

“…In a similar approach for cervical volume measurement, Papoutsis et al examined 81 nonpregnant women and compared cervical volume by VOCAL to cervical volume by a geometric formula for a uniform cylinder. Opposite to our results, they reported good intermethod agreement (mean difference, −0.78%; 95% limits of agreement, –17.59% to 16.03%).…”

Section: Discussionmentioning

confidence: 99%

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Sonographic Measurement of Cervical Volume in Pregnant Women at High Risk of Preterm Birth Using a Geometric Formula for a Frustum Versus 3‐Dimensional Automated Virtual Organ Computer‐Aided Analysis

Ahmed

Aldhaheri

Rodriguez‐Kovacs

et al. 2017

J of Ultrasound Medicine

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Section: Discussionmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Sonographic Measurement of Cervical Volume in Pregnant Women at High Risk of Preterm Birth Using a Geometric Formula for a Frustum Versus 3‐Dimensional Automated Virtual Organ Computer‐Aided Analysis

Ahmed

Aldhaheri

Rodriguez‐Kovacs

et al. 2017

J of Ultrasound Medicine

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“…We measured the length of the cervix in the sagittal plane as the straight distance between the internal and external os. Cervical volume was measured using a three-dimensional and automated technique, virtual organ computer-aided analysis (VOCAL; 3D View, version 2.0, GE Healthcare, Milwaukee, WI), which was preferred over the cylinder geometric formula for volume determination because of its comparable accuracy [19] and the fact that only one investigator (A.D.) examined all cases [20]. VOCAL is a software application in which semiautomatic volume calculations are performed via fixed axis rotation through a number of sequential steps [21].…”

Section: Methodsmentioning

confidence: 99%

3D ultrasound as a surgical quality control of conization in patients with severe dysplasia: a prospective study

Dückelmann

Wordell²,

Richter

et al. 2020

Arch Gynecol Obstet

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Purpose To compare the techniques for cone measurement with ultrasound to determine the size of the resected tissue and to evaluate parameters which may be relevant for stratifying women at risk who need surveillance when pregnant. Methods The present study included women with a pathological cervical biopsy. Cervical length and volume were determined by transvaginal ultrasound prior to conization. The pathologist measured the volume of the removed tissue by the fluid displacement technique and using a ruler. A repeat transvaginal ultrasound was performed during a follow-up visit. Factors affecting cone volume as well as the correlation between measurement techniques were analyzed. Results A total of 28 patients underwent cervical excision treatment. The mean cervical volumes measured sonographically before and after the operation were 17.72 ± 7.34 and 13.21 ± 5.43 cm3, respectively. The proportion of volume excised was 25.50 ± 17.43%. A significant correlation was found between the cone depth and the cone volume measured by the fluid displacement technique, and histopathologically and sonographically measured difference in cervical volume. The interobserver reliability coefficient was > 0.9. Analyzing influential parameters, only age affected the extent of cone volume and the correlation between the three measurement techniques. Conclusion Commonly applied techniques of cervical and cone measurement are equivalent and interchangeable. Our ultrasound data show variety in the volume and length of the cervix, and in the proportion of the volume excised at conization. Ultrasound measurements may help the surgeon to estimate not only the dimension of the remaining cervix but also its function.

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“…The cylinder geometric formula for volume determination was preferred over specific computerised software in consideration of its greater simplicity and speed of use, and its comparable accuracy. 19 …”

Section: Methodsmentioning

confidence: 99%

Effect of age and cone dimensions on cervical regeneration: an Italian multicentric prospective observational study

et al. 2018

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ObjectivesTo evaluate cervical regeneration at 6 months following excisional treatment for high-grade cervical intraepithelial neoplasia (CIN), and to investigate the effect of cone dimensions, age of patients and technique of excision on the efficacy of the regeneration process.DesignProspective observational multicentric study.SettingThree tertiary care and research centres.ParticipantsAmong the 197 eligible women of childbearing age, older than 25 years of age, undergoing for the first time a loop electrosurgical excision procedure or carbon dioxide laser cervical excision for a high-grade CIN at the colposcopy-directed cervical punch biopsy, and with a final diagnosis of high-grade CIN, 165 completed the 6-month follow-up and were included in the analysis.Primary outcome measuresThe cervical length and volume regeneration (%) after 6 months from procedure were determined by three-dimensional ultrasound, and the correlation of regeneration with cone dimensions, age and excision technique was evaluated.ResultsThe mean±SD cervical length regeneration at 6 months was 89.5%±6.3% and the mean±SD cervical volume regeneration was 86.3%±13.2%. At the multivariate analysis, a significant and independent inverse correlation between excised cone length and cervical regeneration emerged (r=−0.39, P<0.001). A significantly negative trend in length regeneration at 6 months from procedure with an increasing class of cone length was found (P<0.001). No significant association was found in relation with patient age at the time of procedure or with the technique of excision.ConclusionsCervical length regeneration at 6 months from excisional treatments is negatively affected by an increasing cone length but not from the age of the patient or the technique of excision. While still achieving equal clinical efficacy, it is crucial to contain cone dimensions, in order to favour a greater length regeneration, reducing the cervical harm and the potential future obstetric complications.

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Sonographic measurement of cervical volume in nonpregnant women using the geometric formula for a cylinder versus the three‐dimensional automated virtual organ computer‐aided analysis (vocal)

Abstract: This method comparison study shows that the geometric formula for a cylinder has good agreement with VOCAL and can determine the volume of the cervix in a faster way.

Cited by 12 publications

References 17 publications

Sonographic Measurement of Cervical Volume in Pregnant Women at High Risk of Preterm Birth Using a Geometric Formula for a Frustum Versus 3‐Dimensional Automated Virtual Organ Computer‐Aided Analysis

Sonographic Measurement of Cervical Volume in Pregnant Women at High Risk of Preterm Birth Using a Geometric Formula for a Frustum Versus 3‐Dimensional Automated Virtual Organ Computer‐Aided Analysis

3D ultrasound as a surgical quality control of conization in patients with severe dysplasia: a prospective study

Effect of age and cone dimensions on cervical regeneration: an Italian multicentric prospective observational study

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