FETAL HEART ULTRASOUND: FIRST AND SECOND
TRIMESTER SCREENING TECHNIQUES AND CHD
DETECTION COMPLETE GUIDE 100 % VERIFIED A+
GRADE ASSURED !!!! LATEST UPDATE !!!!
GUARANTEED SUCESS!!!
What is the role of color flow mapping in assessing fetal heart conditions? - CORRECT ANSWERS
It enhances detection of valvar lesions, such as aortic and pulmonary stenosis.
What was the detection rate of increased NT measurement for congenital heart disease (CHD) in a
meta-analysis of over 58,000 fetuses? - CORRECT ANSWERS 31% with a false positive rate
of 1%.
What additional approaches are used to evaluate the risk for congenital diaphragmatic hernia (CDH) in
the first trimester? - CORRECT ANSWERS Increased NT measurement, tricuspid
regurgitation, and abnormal spectral flow waveforms in the DV.
What are the sensitivity and specificity of abnormal DV waveforms in identifying CHDs in fetuses with
increased NT? - CORRECT ANSWERS Sensitivity: 80%, Specificity: 83%.
What is the mean cardiac axis value in fetuses without cardiac anomalies? - CORRECT ANSWERS
47 degrees with limits of normality between 35 degrees and 60 degrees.
What abnormalities were associated with an abnormal cardiac axis in fetuses? - CORRECT ANSWERS
Structural abnormalities such as HLHS, atrioventricular septal defects, and tetralogy of Fallot.
What was the success rate of visualization of the four-chamber view using transvaginal sonography by
gestational week 13? - CORRECT ANSWERS 92%.
What is the accuracy of identifying CHDs using high-frequency linear transducers between 11 and 13
weeks of gestation? - CORRECT ANSWERS 93.1% accuracy.
, What was the reported sensitivity and specificity for identifying CHDs before 16 weeks' gestation using a
combination of sonography methods? - CORRECT ANSWERS Sensitivity: 70%, Specificity:
98%.
What percentage of cases in a low-risk population had heart defects suspected in the first trimester? -
CORRECT ANSWERS 29 out of 39 cases.
What is the significance of discordance between early and follow-up scans in fetal echocardiography? -
CORRECT ANSWERS It indicates changes in severity or false positive diagnoses of CHD.
What is the implication of mild tricuspid regurgitation found in early scans? - CORRECT ANSWERS
It may not indicate significant abnormalities, as some cases showed no abnormal findings at follow-up.
What is the importance of expertise in transvaginal sonography for CHD screening? - CORRECT
ANSWERS It may be necessary for effective screening in certain facilities.
What are the two views essential for evaluating the fetal heart? - CORRECT ANSWERS Four-
chamber view and three-vessel view.
What is the significance of the ductus arteriosus in fetal heart imaging? - CORRECT ANSWERS
It is crucial for delineating the great arteries and assessing blood flow.
What does the term 'aberrant subclavian artery' refer to? - CORRECT ANSWERS An
abnormal positioning of the subclavian artery, which can be associated with CHD.
What is the role of Doppler imaging in fetal echocardiography? - CORRECT ANSWERS It
helps assess blood flow and detect abnormalities like tricuspid regurgitation.
TRIMESTER SCREENING TECHNIQUES AND CHD
DETECTION COMPLETE GUIDE 100 % VERIFIED A+
GRADE ASSURED !!!! LATEST UPDATE !!!!
GUARANTEED SUCESS!!!
What is the role of color flow mapping in assessing fetal heart conditions? - CORRECT ANSWERS
It enhances detection of valvar lesions, such as aortic and pulmonary stenosis.
What was the detection rate of increased NT measurement for congenital heart disease (CHD) in a
meta-analysis of over 58,000 fetuses? - CORRECT ANSWERS 31% with a false positive rate
of 1%.
What additional approaches are used to evaluate the risk for congenital diaphragmatic hernia (CDH) in
the first trimester? - CORRECT ANSWERS Increased NT measurement, tricuspid
regurgitation, and abnormal spectral flow waveforms in the DV.
What are the sensitivity and specificity of abnormal DV waveforms in identifying CHDs in fetuses with
increased NT? - CORRECT ANSWERS Sensitivity: 80%, Specificity: 83%.
What is the mean cardiac axis value in fetuses without cardiac anomalies? - CORRECT ANSWERS
47 degrees with limits of normality between 35 degrees and 60 degrees.
What abnormalities were associated with an abnormal cardiac axis in fetuses? - CORRECT ANSWERS
Structural abnormalities such as HLHS, atrioventricular septal defects, and tetralogy of Fallot.
What was the success rate of visualization of the four-chamber view using transvaginal sonography by
gestational week 13? - CORRECT ANSWERS 92%.
What is the accuracy of identifying CHDs using high-frequency linear transducers between 11 and 13
weeks of gestation? - CORRECT ANSWERS 93.1% accuracy.
, What was the reported sensitivity and specificity for identifying CHDs before 16 weeks' gestation using a
combination of sonography methods? - CORRECT ANSWERS Sensitivity: 70%, Specificity:
98%.
What percentage of cases in a low-risk population had heart defects suspected in the first trimester? -
CORRECT ANSWERS 29 out of 39 cases.
What is the significance of discordance between early and follow-up scans in fetal echocardiography? -
CORRECT ANSWERS It indicates changes in severity or false positive diagnoses of CHD.
What is the implication of mild tricuspid regurgitation found in early scans? - CORRECT ANSWERS
It may not indicate significant abnormalities, as some cases showed no abnormal findings at follow-up.
What is the importance of expertise in transvaginal sonography for CHD screening? - CORRECT
ANSWERS It may be necessary for effective screening in certain facilities.
What are the two views essential for evaluating the fetal heart? - CORRECT ANSWERS Four-
chamber view and three-vessel view.
What is the significance of the ductus arteriosus in fetal heart imaging? - CORRECT ANSWERS
It is crucial for delineating the great arteries and assessing blood flow.
What does the term 'aberrant subclavian artery' refer to? - CORRECT ANSWERS An
abnormal positioning of the subclavian artery, which can be associated with CHD.
What is the role of Doppler imaging in fetal echocardiography? - CORRECT ANSWERS It
helps assess blood flow and detect abnormalities like tricuspid regurgitation.
