Search Results
Results 201 - 250 of 867
< 1 2 3 4 5 6 7 8 9 10 >
Udayasankar V - - 2007
We conducted a pilot study on 60 women in the second stage of labour using trans-abdominal ultrasound to assess fetal position prior to obstetric intervention. Digital examination failed to assess the correct fetal position in 16 (26%) of the cases. Ultrasound helped in determining fetal position in 57 (95%) of ...
Kennelly Máiréad M - - 2007
OBJECTIVE: To review the antenatal diagnosis of Radial Ray Defects (RRD) in a tertiary referral fetal medicine unit & to set out a clinical algorithm to aid assessment and management. METHODS: All cases of RRD isolated or associated with other anomalies notified to NorCAS between 2000 and 2005 were identified. ...
Zanforlin Filho Sebastiao Marques - - 2007
Three-dimensional ultrasonography in obstetrics has evolved in the last years, and nowadays it is a methodology that greatly helps prenatal diagnosis. Through its rendering mode it allows the careful evaluation of fetal face and limbs, and in multiplanar mode it allows the assessment of the anatomy through the many possible ...
Lalor J - - 2007
BACKGROUND: Since 1997, the RCOG have recommended that ultrasound screening for fetal abnormality in pregnancy should be offered to all women. AIM: This study describes the practices and service provision of ultrasound screening for fetal abnormality in Ireland. METHODS: A national survey of all maternity units providing an obstetric ultrasound ...
Wong G Y - - 2007
OBJECTIVE: To investigate whether the accuracy of vacuum cup placement can be improved by intrapartum ultrasound assessment of the fetal head position during the second stage of labor prior to vacuum extraction for prolonged second stage. METHODS: 50 women undergoing vacuum extraction for prolonged second stage were randomly allocated to ...
Thornburg Loralei L - - 2008
OBJECTIVE: The ability to predict surgically relevant fetal renal pyelectasis is limited. We sought to determine whether the intrauterine timing of prenatal pyelectasis can predict the need for postnatal surgery. METHODS: We retrospectively reviewed all patients with ultrasound measurements of the fetal renal pelvis during the 2nd and 3rd trimesters ...
Sheiner Eyal - - 2007
PURPOSE: As a form of energy, diagnostic ultrasound has bioeffects on living tissues. The thermal index (TI), TIS (TI for soft tissue), TIB (TI for bone), TIC (TI for cranial bone) expresses the potential for rise in temperature at the ultrasound beam's focal point. The mechanical index (MI) indicates the ...
Aponte Hector - - 2007
Ultrasound has been used to aid cannulation of veins of the neck, chest, antecubital fossa, and femoral vein. This investigation compared the traditional method of peripheral intravenous (IV) cannulation of veins of the hands and forearms with ultrasound-guided IV cannulation of these veins. After obtaining institutional review board approval and ...
Ouzounian Joseph G - - 2007
OBJECTIVE: The purpose of this study was to determine whether or not genetic amniocentesis is warranted when isolated choroid plexus cysts (CPC) or echogenic cardiac foci (EF) are noted on prenatal ultrasound. STUDY DESIGN: We performed a retrospective analysis on patients from our perinatal database. All obstetric patients with CPC ...
Natacci Federica - - 2007
PURPOSE: Our purpose is to describe the prenatal manifestation of Norman-Roberts syndrome and to expand the knowledge of the fetal phenotype of this rare condition. The recurrence in two sibs might contribute to the hypothesis of a recessive condition. METHODS: Three cases are presented in which the diagnosis was suggested ...
Albright Todd S - - 2007
OBJECTIVE: The purpose of this study was to evaluate the utility of ultrasound in a combat theater. METHODS: A retrospective review of gynecology visits was evaluated at Camp Doha, Kuwait, from August 2003 through April 2004. Of the 1,737 visits, 237 required pelvic ultrasound. Demographic information, as well as the ...
Tutschek Boris - - 2007
Three-dimensional (3D) ultrasound of the fetal heart is increasingly being used in prenatal diagnosis. While very detailed fetal cardiac studies can be performed using the various 3D ultrasound modalities, their utility for screening for fetal heart disease is yet to be proven. With the emergence of even newer technologies such ...
Akgun Hulya - - 2007
OBJECTIVE: The aim of the study was to compare the consistency of major/minor fetal anomalies detected by second trimester prenatal ultrasound examination with the findings in fetal autopsies following the termination of pregnancy (TOP) in the second trimester. DESIGN: In a 4-year long prospective study, 107 second-trimester TOP was performed ...
Blanchard K - - 2007
OBJECTIVE: To compare providers' and women's estimates of duration of pregnancy with ultrasound estimates for determining medical abortion eligibility. DESIGN: Cross-sectional study. SETTING: Public termination of pregnancy (TOP) services in three provinces. SAMPLE: A total of 673 women attending the above services for TOP. METHODS: Women participating in a medical ...
Lapaire Olav - - 2007
OBJECTIVE: To assess the impact of three-dimensional (3D) versus two-dimensional (2D) ultrasound (US) on maternal-fetal bonding. STUDY DESIGN: Prospective randomized pilot study among low risk women with singleton fetuses in the second and third trimester. Dependent on the randomization pattern, US was commenced either with 2D US or 3D US ...
Whang In Yong - - 2007
PURPOSE: We report a galactocele as changing axillary lumps in both axillae. MATERIALS AND METHODS: 36-year-old woman visited to our hospital for her axillary lump. The diagnosis could be made under ultrasound examination and her recent pregnancy history. However, sonography-guided aspiration was done for confirmation. RESULT: We could confirm the ...
Meunier Jason M JM Department of Emergency Medicine, College of Medicine, University of Cincinnati, Cincinnati, OH 45267, USA. - - 2007
Combined ultrasound and tissue plasminogen activator (rt-PA) therapy, or ultrasound enhanced thrombolysis (UET), has been shown to improve recanalization in patients with acute ischemic stroke. We measured the effect of ultrasound duty cycle on the lytic efficacy of 120 kHz UET in an in vitro human clot model. The hypothesis ...
Sawyer Emma - - 2007
The demand for ultrasound in early pregnancy has been increasing steadily, and is now a routine investigation for most women within the first trimester of their pregnancy. It is a safe investigation which provides reassurance, charts normal development, and identifies women with abnormal or high risk pregnancies. Transvaginal ultrasound has ...
Roelfsema N M - - 2007
OBJECTIVE: This study was undertaken to develop a craniofacial pattern profile analysis by three-dimensional (3D) ultrasound and to introduce a craniofacial variability index (CVI) which can assist in the evaluation of fetal facial anatomy. METHODS: Serial 3D sonographic measurements of 16 different fetal craniofacial parameters were performed at 18-34 weeks ...
Sheiner Eyal - - 2007
OBJECTIVE: The main goal of this study was to determine end users' knowledge regarding safety aspects of diagnostic ultrasound during pregnancy. End users' attitudes toward the use of ultrasound in low-risk pregnancies were also assessed. METHODS: A questionnaire was distributed to ultrasound end users attending review courses and hospital grand ...
Nikkilä A - - 2007
OBJECTIVES: To ascertain whether the risk for congenital malformations is increased in pregnancies with deviating fetal growth, i.e. in those in which the estimated date of delivery (EDD) was postponed more than 1 week at the second-trimester ultrasound fetometry scan, or those suspected of intrauterine growth restriction at routine ultrasound ...
Sheiner E - - 2007
OBJECTIVE: Three-dimensional (3D) ultrasound is gaining popularity in prenatal diagnosis. While there are no studies regarding the safety of 3D ultrasound, it is now widely performed in non-medical facilities, for non-diagnostic purposes. The present study was aimed at comparing the acoustic output, as expressed by thermal index (TI) and mechanical ...
Sonek Jiri - - 2007
An obstetrical ultrasound examination provides invaluable information regarding the fetus. Until the mid-1980s, ultrasound in the first trimester was limited to localization of the pregnancy, establishing viability, and accurate dating. With the advent of high-resolution ultrasound and transvaginal scanning, a significant amount of information about the fetus can be gained ...
Ben-Neriah Z - - 2007
OBJECTIVE: To describe prenatal ultrasound and autopsy findings in fetuses with OEIS (omphalocele, bladder exstrophy, imperforate anus, spina bifida) complex. METHODS: This was a retrospective study of the nine cases with OEIS complex diagnosed at our center using detailed fetal ultrasound during the last 10 years. We summarized the fetal ...
Faure J M - - 2007
OBJECTIVES: The aim of this study was to describe a novel three-dimensional (3D) ultrasound rendering technique to examine the normal fetal posterior palate and to assess its correspondence with the real fetal anatomy. METHODS: A prospective longitudinal study was conducted from January to October 2005 and included 100 fetuses in ...
Sawyer E - - 2007
OBJECTIVE: To identify ultrasound measurements that are the best predictors of the presence of retained products of conception (RPOC) within the uterine cavity in women with clinical diagnosis of incomplete miscarriage. METHODS: This was a prospective observational study, set in a dedicated early pregnancy assessment unit in a London teaching ...
Sakamoto Hideo - - 2007
OBJECTIVES: To compare the accuracy of testicular volume measurements with the Prader orchidometer versus ultrasonography. METHODS: The volume of 938 testes in 469 men with infertility (mean age 35.8 years) was measured using a Prader orchidometer and by ultrasonography. The ultrasound testicular volumes were calculated using the formula length x ...
Yagel S - - 2007
Over the last decade we have been witness to a burgeoning literature on three-dimensional (3D) and four-dimensional (4D) ultrasound-based studies of the fetal cardiovascular system. Recent advances in the technology of 3D/4D ultrasound systems allow almost real-time 3D/4D fetal heart scans. It appears that 3D/4D ultrasound in fetal echocardiography may ...
D'Addario Vincenzo - - 2007
Dilatation of the fetal cerebral ventricles (ventriculomegaly) is a generic sonographic sign that is common to several pathological entities carrying different prognoses. The main causes of fetal ventriculomegaly are aqueductal stenosis, Chiari II malformation, Dandy-Walker complex, and agenesis of the corpus callosum. Ventriculomegaly is easily recognized by ultrasound by measuring ...
Chan Fung Yee - - 2007
Advanced fetal diagnosis with real-time, high resolution ultrasound and fetal therapy with fetoscopic surgery represent the state-of-the-art in the subspecialty of fetal medicine. They allow accurate diagnosis of the fetal condition, multidisciplinary support for management, and in utero treatment, thereby significantly reducing perinatal mortality and morbidity. Such expertise is only ...
Martinez-Zamora M Angels - - 2007
OBJECTIVE: To describe the false-positive diagnoses of prenatal ultrasound screening of fetal structural anomalies. METHODS: Pregnancies with fetal structural anomalies either detected prenatally in our center or referred to us, were registered, evaluated, and followed-up prospectively by a multidisciplinary Congenital Defects Committee. After postnatal follow-up was completed, cases were assigned ...
Sanz-Cortes Magdalena - - 2007
Our aim was to compare the diagnostic capabilities of the multiplanar mode of 3D ultrasound (3D US) and MRI in the assessment of a fetal enlarged cisterna magna. Two fetuses showing an enlarged posterior fossa by conventional two-dimensional ultrasound at 24 and 29 weeks of pregnancy were assessed using both ...
Jonuscheit Sven - - 2007
PURPOSE: To compare repeatability of the measures of corneal thickness obtained by slit-scanning light method (Orbscan II) with those obtained by an ultrasound pachymeter, with special interest in the peripheral region of the cornea. METHODS: On 24 normal adults, aged 20 to 58 years (average 36 years) with up to ...
Harper Terry - - 2007
OBJECTIVE: This study compares the diagnostic accuracy of prenatal ultrasound with postnatal imaging and evaluates for associated fetal anomalies and their impact on immediate neonatal outcome in fetal Dandy Walker complex (DWC). METHODS: Cases of fetal DWC diagnosed in a single ultrasound unit from January 2000 through July 2004 were ...
Perry Sandy - - 2007
OBJECTIVE: To evaluate the association of ultrasound findings and other factors with the decision to terminate trisomy-21-affected pregnancies. METHODS: We performed a retrospective analysis of trisomy-21-affected pregnancies diagnosed prior to 24 weeks' gestation. Data were collected on maternal age, indications for prenatal diagnosis, gestational age at diagnosis, marital status, race, ...
Bricker L - - 2007
Diagnostic ultrasound is used selectively in late pregnancy where there are specific clinical indications. However, the value of routine late pregnancy ultrasound screening in unselected populations is controversial. The rationale for such screening would be the detection of clinical conditions which place the fetus or mother at high risk, which ...
Bricker L - - 2007
Doppler ultrasound study of umbilical artery waveforms helps identify the compromised fetus in 'high risk' pregnancies and, therefore, deserves assessment as a screening test in 'low risk' pregnancies. One of the main aims of routine antenatal care is to identify the 'at risk' fetus in order to apply clinical interventions ...
Kaasen A - - 2006
OBJECTIVE: To evaluate discrepancies between sonographic and autopsy findings following termination of pregnancy (TOP) in the second trimester. METHODS: This retrospective report is based on 288 consecutive second-trimester abortions carried out because of fetal malformations diagnosed by ultrasound examination at a tertiary referral center. The correlation between the results from ...
Boukydis Zack - - 2006
Clinical evidence indicates the influence of viewing ultrasound on women's investment in health during pregnancy. Ongoing work on the effects of ultrasound consultation (UC) include: establishing a replicable UC and demonstrating validity of the UC by examining effects of UC on behavioral and physiological indicators of increased resilience in maternal ...
Chéreau Elisabeth - - 2007
We report a case of isolated voluminous fetal ascites discovered during a routine fetal ultrasound at 22 weeks' gestation. Analysis of the fluid showed it to be chyliform and ruled out other causes of fetal ascites. Regular bimonthly ultrasound scans monitored its progressive diminution and then its disappearance. Examination showed ...
Liu Haining - - 2007
Degradation of azo dye Acid Orange 7 (AO7) was investigated using zero-valent iron/granular activated carbon (Fe(0)/GAC) in the absence and presence of ultrasound (US). The AO7 degradation efficiency by Fe(0)/GAC was dramatically enhanced by ultrasound, ultrasound alone had a little effect on the degradation. Effects of Fe(0)/GAC ratios and initial ...
Salvesen Kjell A - - 2007
Epidemiological studies have indicated no association between diagnostic ultrasound exposure during pregnancy and childhood malignancies. Diagnostic ultrasound imaging does not seem to influence birth weight, whereas frequent Doppler ultrasound was associated with reduced birth weight in one study. Most experts do not believe that ultrasound exposure during pregnancy is associated ...
Church Charles C - - 2007
Biomedical ultrasound may induce adverse effects in patients by either thermal or non-thermal means. Temperatures above normal can adversely affect biological systems, but effects also may be produced without significant heating. Thermally induced teratogenesis has been demonstrated in many animal species as well as in a few controlled studies in ...
Nassar Natasha - - 2006
To examine the diagnostic accuracy of clinical examination to determine fetal presentation in late pregnancy. Cross sectional analytic study with index test of clinical examination and reference standard of ultrasonography. Antenatal clinic in tertiary obstetric hospital in Sydney, Australia. 1633 women with a singleton pregnancy between 35 and 37 weeks' ...
Van Keirsbilck J - - 2006
We present a case of sirenomelia diagnosed on a first trimester ultrasound at 10 weeks' gestation and confirmed on 3D-ultrasound and MRI. The pregnancy was terminated at 15 gestational weeks and the post-mortem examination, including RX and microscopy, is presented. The sirenomelia sequence is a rare and lethal anomaly characterized ...
Chen M - - 2006
OBJECTIVE: To evaluate the use of placental volume measured by three-dimensional (3D) ultrasound in predicting fetal homozygous alpha(0)-thalassemia (Hb-Bart's disease). METHODS: From June 2002 to May 2004 singleton pregnancies at risk of alpha(0)-thalassemia and normal controls were studied prospectively at 9-12 weeks of gestation. Affected fetuses were suspected to have ...
Leung K Y - - 2006
OBJECTIVES: We have shown previously that ultrasound examination performed by one experienced operator can be useful to exclude homozygous alpha(0)-thalassemia in a tertiary referral center. This study aimed to determine whether the technique was still applicable when performed by several operators and in different centers. METHODS: At the Maternal and ...
Fox Alice J Sophia - - 2006
BACKGROUND: Abnormal presentation (detected in the early third trimester) causes concern for pregnant women and their carers. Definitive ultrasound-based data on the risk of persistence of abnormal presentation is lacking to allow appropriate counselling. Comparison of pregnancy outcome was made on the basis of maternal age at delivery. METHODS: Notes ...
Boukydis C F Zachariah - - 2006
OBJECTIVE: The primary purpose of this research was to evaluate the impact of prenatal ultrasound consultation on maternal-fetal attachment, knowledge of fetal behavior, and development and reduction of anxiety in pregnant women scheduled for routine ultrasound screens. A standard depression screen was also used to evaluate depression levels of women ...
Avni F E - - 2007
The authors wish to highlight the evolution that has occurred in fetal ultrasound in recent years. A first significant evolution lies in the increasing contribution of first trimester ultrasound for the detection of fetal anomalies. Malformations of several organs and systems have been diagnosed during the first trimester. Furthermore the ...
< 1 2 3 4 5 6 7 8 9 10 >