Correlational Study of Endometrial Length and Thickness by 2D Ultrasound Parameter to the Endometrial Volume Obtained by 3D Ultrasound

AbstractTraditional two-dimensional (2D) ultrasound speckle tracking echocardiography (STE) studies have shown a wide range of twist values, also for normal hearts, which is due to the limitations of short-axis 2D ultrasound. The same limitations do not apply to three-dimensional (3D) ultrasound, and several studies have shown 3D ultrasound to be superior to 2D ultrasound, which is unreliable for measuring twist. The aim of this study was to develop a left ventricular twisting phantom and to evaluate the accuracy of 3D STE twist measurements using different acquisition methods and volume rates (VR). This phantom was not intended to simulate a heart, but to function as a medium for ultrasound deformation measurement. The phantom was made of polyvinyl alcohol (PVA) and casted using 3D printed molds. Twist was obtained by making the phantom consist of two PVA layers with different elastic properties in a spiral pattern. This gave increased apical rotation with increased stroke volume in a mock circulation. To test the accuracy of 3D STE twist, both single-beat, as well as two, four and six multi-beat acquisitions, were recorded and compared against twist from implanted sonomicrometry crystals. A custom-made software was developed to calculate twist from sonomicrometry. The phantom gave sonomicrometer twist values from 2.0° to 13.8° depending on the stroke volume. STE software tracked the phantom wall well at several combinations of temporal and spatial resolution. Agreement between the two twist methods was best for multi-beat acquisitions in the range of 14.4–30.4 volumes per second (VPS), while poorer for single-beat and higher multi-beat VRs. Smallest offset was obtained at six-beat multi-beat at 17.1 VPS and 30.4 VPS. The phantom proved to be a useful tool for simulating cardiac twist and gave different twist at different stroke volumes. Best agreement with the sonomicrometer reference method was obtained at good spatial resolution (high beam density) and a relatively low VR. 3D STE twist values showed better agreement with sonomicrometry for most multi-beat recordings compared with single-beat recordings.

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Abdominal Tumor in a 14-Year-Old Adolescent: Imperforate Hymen, Resulting in Hematocolpos—A Case Report and Review of the Literature

Case Reports in Obstetrics and Gynecology ◽

10.1155/2015/429740 ◽

2015 ◽

Vol 2015 ◽

pp. 1-3 ◽

Cited By ~ 1

Author(s):

George Marios Makris ◽

Doris Macchiella ◽

Dennis Vaidakis ◽

Charalampos Chrelias ◽

Marco Johannes Battista ◽

...

Keyword(s):

Differential Diagnosis ◽

3D Ultrasound ◽

Medical Advice ◽

Female Adolescents ◽

Review Of The Literature ◽

Abdominal Tumor ◽

Imperforate Hymen ◽

Abdominal Masses ◽

2D Ultrasound

Background. Abdominal masses in female adolescents are uncommon. A rare cause of this condition is hematocolpos due to imperforate hymen.Case. We present a case of an unusually massive asymptomatic abdominal bulk in a 14-year-old female patient, who sought for medical advice after unusual abdominal pain lasting for few weeks. The patient was otherwise asymptomatic, apart from an unusual dramatic expansion of her abdominal wall during the last month. We describe the surgical management and the follow-up of the patient.Summary and Conclusion. Clinicians should keep in mind that an imperforate hymen can cause abdominal growth due to hematocolpos and include it in the differential diagnosis of such a clinical entity in female adolescents. 2D ultrasound is usually efficient for the confirmation of the diagnosis of hematocolpos, but 3D ultrasound is more accurate. Wide excision should be undertaken, as an initial approach, to avoid recurrence.

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OC20.08: 3D ultrasound does not improve diagnosis of retained placental tissue compared to 2D ultrasound

Ultrasound in Obstetrics and Gynecology ◽

10.1002/uog.12700 ◽

2013 ◽

Vol 42 (s1) ◽

pp. 42-42

Author(s):

J. Belachew ◽

K. Eurenius ◽

O. Axelsson ◽

A. Mulic-Lutvica

Keyword(s):

Placental Tissue ◽

3D Ultrasound ◽

2D Ultrasound ◽

Retained Placental Tissue

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Virtual embryoscope for detection of structural abnormalities in first trimester pregnancy

International Journal of Reproduction Contraception Obstetrics and Gynecology ◽

10.18203/2320-1770.ijrcog20171950 ◽

2017 ◽

Vol 6 (5) ◽

pp. 1924

Author(s):

Sumesh Choudhary ◽

Vineet Mishra ◽

Rohina Aggarwal

Keyword(s):

First Trimester ◽

3D Ultrasound ◽

P Value ◽

Detection Rates ◽

Significant Difference ◽

Structural Abnormalities ◽

Innovative Tool ◽

2D Ultrasound ◽

Additional Value ◽

A Prospective Study

Background: To determine whether there is an additional value of virtual embryoscopy with 3Dimensional (3D) ultrasound above (2D) ultrasound regarding detection rates of structural abnormalities in first trimester pregnancy.Methods: This was a prospective study consisting of 52 pregnant women with gestational age ranging from 6 to 12 weeks. 2D and 3D ultrasound scan was performed using GE voluson E8 transvaginal probe. All scans were evaluated by ten gynecologists trained in USG. The observations were noted and compared for anatomical details and detection of structural defects.Results: It was found that images were seen well with 3D (virtual embryoscope). i.e. maximum count 19 in the table and there is statistically significant difference between 3D and 2D images with a p-value <0.01 at 95% confidence interval (CI).Conclusions: Virtual embryoscope is an innovative tool for evaluation of developing embryo and early foetal morphology. The advantages are the ability to reconstruct 3D images with the stored scanned volume and examine without having to rescan the patient.

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Oriented 3D Ultrasound for Central Venous Cannulation Using an Augmented 2D Ultrasound System

Academic Emergency Medicine ◽

10.1111/acem.13831 ◽

2019 ◽

Vol 26 (10) ◽

pp. 1173-1176

Author(s):

Joshua S. Broder ◽

Matthew R. Morgan ◽

Elias J. Jaffa ◽

Rebecca G. Theophanous

Keyword(s):

3D Ultrasound ◽

Venous Cannulation ◽

Central Venous Cannulation ◽

Central Venous ◽

2D Ultrasound ◽

Ultrasound System

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Role of 3D and 3D Power Doppler to Assess Endometrial Receptivity in IUI Cycles

International Journal of Infertility & Fetal Medicine ◽

10.5005/jp-journals-10016-1003 ◽

2010 ◽

Vol 1 (1) ◽

pp. 19-24

Author(s):

Chaitanya B Nagori

Keyword(s):

Color Doppler ◽

Randomized Study ◽

Power Doppler ◽

3D Ultrasound ◽

Endometrial Receptivity ◽

Key Factors ◽

3D Power Doppler ◽

Volume Assessment ◽

Endometrial Volume

ABSTRACT Background The assessment of the endometrial receptivity at the time of human chorionic gonadotrophin (hCG) is one of the key factors for success of all ART procedures. Aim To assess, if 3D and 3D power Doppler assessment of endometrial receptivity before giving hCG, helps improving pregnancy rates in superovulation with IUI cycles. Settings and Design A prospective randomized study of 2500 cycles of IUI was done over a period of twelve months for pre-hCG endometrial assessment. Method Endometrial assessment was done on Voluson 730 Expert, (Wipro GE) using transvaginal multifrequency volume probe 5 to 9 MHz. When follicles and endometrium were considered mature by 2D US and color Doppler, 3D and 3D power Doppler assessment of the endometrium was done before giving hCG. These values were evaluated for conception and nonconception groups. Results Conception rates were higher, when endometrial volume was between 3 and 7 cc. In our study, we have found endometrial FI > 20 and endometrial VFI > 40 as most optimum. Conclusions 3D ultrasound is accurate for volume assessment of endometrium. 3D and 3D PD, when used with 2D US and color Doppler for pre-hCG endometrial assessment, it would definitely improve implantation rates in IUI cycles.

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What is Known about Corpus Callosum Prenatally?

Donald School Journal of Ultrasound in Obstetrics & Gynecology ◽

10.5005/jp-journals-10009-1461 ◽

2016 ◽

Vol 10 (2) ◽

pp. 163-169 ◽

Cited By ~ 1

Author(s):

E Merz

Keyword(s):

Corpus Callosum ◽

Obstet Gynecol ◽

Fetal Brain ◽

Median Plane ◽

3D Ultrasound ◽

Additional Information ◽

2D Ultrasound ◽

Biometric Measurements ◽

Magnetic Resonance Imaging Mri ◽

The Brain

ABSTRACT The corpus callosum is the main commissure of the fetal brain and can be displayed with two-dimensional (2D) and threedimensional (3D) ultrasound. However, only 3D ultrasound provides the operator with the possibility to adjust the three orthogonal planes of the brain in that way that the entire corpus callosum is shown precisely in the median plane. The aim of this article is to provide the most recent information on the assessment of the fetal corpus callosum by means of 3D ultrasound. Different topics are highlighted, such as advantage of 3D ultrasound over 2D ultrasound, indications for displaying the fetal corpus callosum, demonstration of the normal and abnormal corpus callosum and biometric measurements of the fetal corpus callosum by 3D ultrasound. Furthermore the question is raised whether fetal magnetic resonance imaging (MRI) can give additional information to the 3D ultrasound examination and whether the diagnosis resulting from 3D neurosonography gives us the chance for a better counseling of parents who are confronted with the diagnosis of a fetal corpus callosum pathology. How to cite this article Merz E, Pashaj S. What is Known about Corpus Callosum Prenatally? Donald School J Ultrasound Obstet Gynecol 2016;10(2):163-169.

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