A review of fetal volumetry: the need for standardization and definitions in measurement methodology

Ioannou, Christos; Sarris, Ippokratis; Salomon, Laurent; Papageorghiou, Aris T.

doi:10.1002/uog.9074

Cited by 37 publications

(52 citation statements)

References 62 publications

(25 reference statements)

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“…Recent studies suggest a challenging approach to this issue by developing the technology to expand to 3D MR imaging biometry. [26][27][28][29] However, this approach has not matured and is not yet in clinical use.…”

Section: Discussionmentioning

confidence: 99%

Normal Fetal Posterior Fossa in MR Imaging: New Biometric Data and Possible Clinical Significance

Ber¹,

Bar‐Yosef²,

Hoffmann

et al. 2015

AJNR Am J Neuroradiol

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Section: Discussionmentioning

confidence: 99%

Normal Fetal Posterior Fossa in MR Imaging: New Biometric Data and Possible Clinical Significance

Ber¹,

Bar‐Yosef²,

Hoffmann

et al. 2015

AJNR Am J Neuroradiol

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“…One review identified 43 studies that reported normal volumes for the fetal brain, cerebellum, thalamus, liver, femurs, lungs, and kidneys in first-trimester embryos 8 . However, only a few studies have focused on fetal cranial and intracranial structure volume measurements during development 1, 2, 4, 6, 7, 9-12 .…”

Section: Discussionmentioning

confidence: 99%

“…Prenatal assessments of fetal intracranial structures are usually performed using two-dimensional 2D ultrasound biometric measurements, and now, 3D ultrasound imaging is increasingly used as a complementary tool in fetal evaluation, offering the possibility of calculating fetal organ volumes and providing extra information on growth and maturation 2,3 . The Virtual Organ Computer-aided Analysis VOCAL software has previously been used to describe normal reference values for the cerebrum [3][4][5] and cerebellar volumes throughout gestation [6][7][8][9][10] .…”

Section: Introductionmentioning

confidence: 99%

Establishment of Fetal Cranial and Intracranial Structure Volume Measurements using Three-dimensional Ultrasound Imaging in a Japanese Population

Komoriyama

Ichizuka

Hasegawa

et al. 2013

Showa Univ J Med Sci

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: The goal of this study was to establish a normogram of the intracranial structure volumes in appropriate-for-gestational age AGA Japanese fetuses. This was a cross-sectional and prospective study of 211 AGA fetuses. The total intracranial, cerebrum, ventricle, choroid plexus, cerebellum, cerebellar vermis, and cavum septum pellucidum volumes were measured using three-dimensional 3D ultrasound. The fetal cranial and intracranial structure volumes signi cantly increased with gestational age GA . When using the GA as an independent variable and the fetal cranial or intracranial structure volumes as the dependent variable, the best-t equation for the fetal brain was a second-order polynomial regression equation. We herein provide the rst report of fetal cranial and intracranial structure volumes and their normal growth curves in normal Japanese fetuses. Future 3D ultrasound studies of volume and other intracranial fetal structures could provide valuable information about how such changes may correlate with long-term neurodevelopment and the results may be used for comparisons with fetal growth restriction in the future.

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“…Limitations are related to the size of the study population and that four volumes could not be analysed due to shadowing from bony structures in the fetus. Factors complicating fetal volume assessments are absence of clearly defined anatomical landmarks for measurement and the lacking possibility in validating fetal measurements in vivo against a reference standard [12]. As the true bladder volumes are not known, we could only estimate differences between examiners and methods.…”

Section: Pol Scientificmentioning

confidence: 99%

“…In spherical structures, volumes can be calculated mathematically from radiuses of the organ. Standardization and definitions in measurement methodology is warranted [12].…”

Section: Introductionmentioning

confidence: 99%

Repeatability of volume calculations of the fetal urinary bladder

Sætherhaug

Fasting

Røset

et al. 2016

Bladder

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OBJECTIVES:To investigate the intra-and inter-observer variation of the manual 3D Virtual Organ Computer-aided Analysis (VOCAL) in calculating fetal bladder volume and compare results from VOCAL with Sonography-based Automated Volume Count (SonoAVC) and a mathematical calculation based on three radiuses. METHODS:Forty-five women attending the second trimester routine scan at St. Olavs Hospital, Trondheim, Norway were included in a prospective observational study. 3D acquisition of the fetal bladder was performed with Voluson E8 and the results were compared with intra-class correlation coefficient (ICC), repeatability coefficient and limits of agreement. RESULTS:Good intra-observer agreement for both examiners was observed. ICCs were 0.98 and 0.99 and the repeatability coefficients were ± 27 and ± 25 mm 3 . However, we found a significant difference between the two observers. The mean difference was 20 mm 3 (95% CI 9-32). Inter-observer ICC was 0.96. The mean volume based on radiuses was 148 (SD 14) mm 3 vs. 145 (SD 14) mm 3 based on VOCAL and 161 (SD 16) mm 3 based on SonoAVC. The mean volume based on SonoAVC was significant larger than volumes based on radiuses. The ICCs between methods were good and varied from 0.82 to 0.93. The mean time used in calculating volumes was 94 seconds using VOCAL, 86 seconds using SonoAVC and 28 seconds calculating from radiuses.CONCLUSIONS: VOCAL and SonoAVC did not show advantages compared to calculations based on radiuses. Therefore, we recommend calculating volumes of spherical fetal organs from three radiuses because this method was easiest to perform.

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A review of fetal volumetry: the need for standardization and definitions in measurement methodology

Abstract: Volume charts of fetal organs and structures vary considerably among studies. This review identified 42 studies reporting normal volumes, namely for fetal brain (n = 3), cerebellum (n = 4), liver (n = 6), femur (n = 2), lungs (n = 15), kidneys (n = 3) and first-trimester embryo (n = 9).

Cited by 37 publications

References 62 publications

Normal Fetal Posterior Fossa in MR Imaging: New Biometric Data and Possible Clinical Significance

Normal Fetal Posterior Fossa in MR Imaging: New Biometric Data and Possible Clinical Significance

Establishment of Fetal Cranial and Intracranial Structure Volume Measurements using Three-dimensional Ultrasound Imaging in a Japanese Population

Repeatability of volume calculations of the fetal urinary bladder

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