Fetal transverse cerebellar diameter/abdominal circumference ratio in assessing fetal size

Haller, Herman; Petrović, Oleg; Rukavina, Brigita

doi:10.1016/0020-7292(95)02423-a

Cited by 24 publications

(31 citation statements)

References 15 publications

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“…1 A strong correlation was noted between gestational age determined by last menstrual period and fetal TCD between 20-22 weeks (r = 0. 0.862) and 32-34 weeks (r = 0.803) (p<0.001), similar to correlation of TCD and gestational age (r = 0.955) in the study conducted by Haller et al 5 In the study conducted by Dilmen et al the pearson correlation r =0.9767, which is also close to present study. 6 In present study a significant correlation exists between the gestational age determined by the last menstrual period and AC at 20-22 weeks (r = 0.688) and 32-34 weeks (r = 0.486) (p<0.001).…”

Section: Discussionsupporting

confidence: 92%

“…7 In this study the mean +2SD of the TCD/AC ratio at 32-34 weeks is taken as cut-off value for diagnosing FGR. The cut-off value of TCD/AC ratio 15.73 in present study is close to the study conducted by Meyer et al in which the cut-off value for fetal growth restriction was 15.9, and also with the study of Haller et al 5,10 In present study the sensitivity, specificity, PPV and NPV of TCD/AC ratio in diagnosing FGR were 80%, 98.8%, 88.8% and 97.8% respectively. Which is comparable with the study of Meyer et al in which the sensitivity, specificity, PPV and NPV were 83.9%, 96.8%, 94.5% and 88.2% respectively.…”

Section: Discussionsupporting

confidence: 89%

“…In the study conducted by Haller et al there was strong correlation exists between gestational age and AC (r = 0.9453) which is almost close to present study. 5 There was a significant linear correlation noted between TCD and AC at 20-22 weeks (r = 0.790) and 32-34 weeks (r = 0.588) (P<0.01) in this study, similar to study conducted by Campbell et al where strong linear correlation (r =0.918) noted between TCD and AC. 7 In present study there is no statistically significant difference between the mean TCD of FGR and AGA fetuses (p>0.05), Similar to study conducted by Reece et al, in which the TCD was not affected in FGR.…”

Section: Discussionsupporting

confidence: 89%

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Efficacy of transverse cerebellar diameter/abdominal circumference ratio: a gestational age independent parameter in assessing fetal growth restriction

Chinnappan¹,

Loganathan²

2017

Int J Reprod Contracept Obstet Gynecol

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Background: It is important to identify fetal growth restriction (FGR) antenatally because it is associated with increased perinatal morbidity and mortality. There is difficulty in diagnosis of fetal growth restriction using standard ultrasonographic parameters as they are gestational age related and are not reliable in cases of symmetrical growth restriction. Therefore, there is a need for gestational age independent biometric parameter, which can diagnose fetal growth restriction in unknown gestational age and can diagnose both symmetric and asymmetric fetal growth restriction. In this study transverse cerebellar diameter (TCD)/abdominal circumference (AC) ratio used to diagnose fetal growth restriction. Objectives of the study were to evaluate the validity of TCD/AC ratio in diagnosing fetal growth restriction and to find out the cut-off value of TCD/AC ratio for diagnosis of fetal growth restriction.Methods: This study was carried out for 12 months and sample size was 100. Transverse cerebellar diameter, abdominal circumference measured between 20-22wks and 32-34weeks of gestation and transverse cerebellar diameter and abdominal circumference ratio calculated.Results: TCD/AC ratio was fairly constant throughout the pregnancy. Fetuses with TCD/AC ratio more than 2SD of the mean were found growth restricted on examination. The TCD/AC ratio more accurate in diagnosing fetal growth restriction (FGR).Conclusions: As the TCD/AC ratio is constant, it is a gestational age - independent parameter, can diagnose FGR in antenatal women with unknown gestational age. Hence, TCD/AC ratio can be a screening test to diagnose FGR in the antenatal period.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 89%

Section: Discussionsupporting

confidence: 89%

See 1 more Smart Citation

Efficacy of transverse cerebellar diameter/abdominal circumference ratio: a gestational age independent parameter in assessing fetal growth restriction

Chinnappan¹,

Loganathan²

2017

Int J Reprod Contracept Obstet Gynecol

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“…The ultrasonic measurement of biparietal diameter is routinely measured during human prenatal examinations [7,21]. Recently, abdominal circumference, orbit, lens and heart were also estimated by ultrasonic scanning and relation between these and fetal growth were worked [4,11,15,21].…”

mentioning

confidence: 99%

Ultrasonic Measurement of Fetal Parameters for Estimation of Gestational Age in Korean Black Goats

Lee

Cho

et al. 2005

The Journal of Veterinary Medical Science

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ABSTRACT. The objective of this study was to determine relationship of gestational age with measurement of diameter of head, orbit, trunk, long and short axis of heart, aorta, placentome, umbilical cord and umbilical vein in Korean black goats. In this study, ten pregnant Korean black goats (Capra hircus aegagrus) were used. Pregnancy diagnosis was performed with a 5 MHz linear transducer and ultrasonographic scan were performed at 60, 75, 90, 105, 120 and 135 days after mating with a 4-9 MHz convex transducer. For accurate measurement, all fetal organs were measured at least 3 times. The diameter of head, orbit, trunk, long and short axis of heart, aorta, placentome, umbilical cord and umbilical vein were significantly increased with the gestational age (P<0.05). Of these parameters, trunk (r=0.8876; p<0.001), long axis of heart (r=0.9168; p<0.001) and short axis of heart (r=0.8819; p<0.001) proved to be the more effective measurements than other parameters, as it correlated well with gestational age. Results indicate that ultrasonic measurements of these parameters were useful methods to estimate gestational age in Korean black goat. KEY WORDS: fetal parameter, gestational age, Korean black goat, ultrasonography.

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“…Além disso, o grau de insinuação da cabeça fetal dificulta o acesso à fossa posterior. Em outras circunstâncias, a pouca quantidade de lí-quido amniótico presente em torno da cabeça fetal dificulta a visibilização do cerebelo 10,12,20 . A obesidade materna e as próprias estruturas musculares também são fatores que impedem a penetração das ondas sônicas 20 .…”

Section: Resultsunclassified

Avaliação Ultra-Sonográfica do Crescimento Fetal com uso do Diâmetro Transverso do Cerebelo

Nery¹,

Moron²,

Kulay³

2000

Rev. Bras. Ginecol. Obstet.

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Fetal transverse cerebellar diameter/abdominal circumference ratio in assessing fetal size

Abstract: Fetal TCD/AC ratio as a gestational age-independent method could improve diagnostic sensitivity and specificity in the early detection of fetal growth abnormalities.

Cited by 24 publications

References 15 publications

Efficacy of transverse cerebellar diameter/abdominal circumference ratio: a gestational age independent parameter in assessing fetal growth restriction

Efficacy of transverse cerebellar diameter/abdominal circumference ratio: a gestational age independent parameter in assessing fetal growth restriction

Ultrasonic Measurement of Fetal Parameters for Estimation of Gestational Age in Korean Black Goats

Avaliação Ultra-Sonográfica do Crescimento Fetal com uso do Diâmetro Transverso do Cerebelo

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