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Volume : 40 Issue : 4 Year : 2021
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pelviperineology. 2013; 32(4): 99-103 | DOI:

Freehand acquisition of 3D transperineal pelvic floor volume does not yield accurate measurements

GHAZALEH ROSTAMI NIA1, DENA WHITE1, LIESCHEN QUIROZ1, SEYED ABBAS SHOBEIRI1
1Oklahoma University Health Sciences Center - Department Of Obstetrics And Gynecology - Section of Female Pelvic Medicine and Reconstructive Surgery/ Urogynecology

Objective: :Abstract: Objectives: Assess the accuracy of freehand 3D Transperineal ultrasound (TPUS) compared to 3D endovaginal ultrasound (EVUS) for obtaining pelvic floor measurements.
Methods: :We compared 30 freehand 3D transperineal ultrasounds and 360 degrees endovaginal ultrasounds of patients referred to our clinic with different urogynecologic symptoms during January-June 2011. The minimal levator hiatus (MLH) height (AP), width (RL), and area were obtained by 3D transperineal and endovaginal ultrasound.
Results: :A total of 60 3D volumes (30 for each modality) were reviewed . The mean age of women in our study group was 52.36 years (SD ± 15.86), median parity 2 (range 0-5). The median stage of prolapse was 1 (range 0-3). The mean weight was 166.16 pounds (SD ± 59.07). The mean MLH height, width and area in TPUS measurements were 60.72 mm (SD ±9.30), 54.17 mm (SD ±11.10), and 26.16 cm2 (SD ±7.72) respectively. The mean MLH height, width and area in EVUS measurements were 51.54 mm (SD ±6.36), 37.41 mm (SD ±5.86), and 15.08 cm2 (SD ±3.67) respectively. Bland Altman analyses of each measurement demonstrated that the two modalities do not consistently provide similar measurements.
Conclusions: :Our study demonstrated that freehand acquisition of 3D transperineal volumes does not provide accurate measurements when compared to 3D endovaginal ultrasonography.


Cite This Article

NIA G, WHITE D, QUIROZ L, SHOBEIRI S. Freehand acquisition of 3D transperineal pelvic floor volume does not yield accurate measurements. 2013; 32(4): 99-103

Corresponding Author: NIA G.