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  • 刊频： Quarterly, 2009-
  • NLM标题： Australas J Ultrasound Med
  • iso缩写： -
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共218条结果
  • 1.

    【2hr】Benefits and pitfalls of the use of intrapartum ultrasound

    包量

    机译 使用分娩期超声的好处和陷阱
    摘要：
  • 2.

    【2hr】Can we measure the spiral and uterine artery blood flow by real‐time sonography and Doppler indices to predict spontaneous miscarriage in a normal‐risk population?

    包量

    机译 我们可以通过实时超声检查和多普勒指数来测量螺旋和子宫动脉的血流，以预测正常风险人群的自然流产吗？
    摘要：Introduction: The predictive value of spiral artery flow Doppler measurements of a subsequent early miscarriage in first trimester pregnancy is explored here. Objective: The aim of this study is to determine uterine and spiral artery blood flow changes in first trimester subsequent miscarriages and correlate within the mechanisms of the Doppler indicies. Study design: The uterine artery and spiral artery pulsatility and resistance indexes, systolic and diastolic ratios, acceleration times, and blood flow of both the right and left uterine arteries were obtained by trans vaginal color Doppler ultrasonography in consecutive viable pregnancies between 5 and 12 gestational week. Women were subsequently classified as having continuing pregnancies or pregnancy loss before 20 weeks gestation. To predict subsequent pregnancy loss, Doppler findings were adjusted for maternal age, history of previous abortion, presence of subchorionic hematoma, embryonic bradycardia, and gestational age by means of multivariate logistic regression analysis. The cut‐off values are used for the ROC curve. Results: Twenty‐five pregnancies (11.7%) were spontaneously aborted before 20 weeks of gestational age. In 29 (13.6%) cases there were previously abortion history, 30 (14%) had bradycardia, and 37 (17.3%) had subchoronic hematoma. Regarding the parameters of uterine and spiral artery pulsatility and resistive index, acceleration time, systolic/diastolic ratios and blood flows, only uterine artery S/D low values were significantly associated with pregnancy loss in the multivariate logistic regression analysis (P = 0.0001,95% CI: 4.968–55.675). Conclusion: The uterine artery systolic/diastolic ratios have a predictive value for early pregnancy loss and seem to be useful as a marker. On the other hand, spiral artery changes could be so local that they cannot be determined by the parameters of spectral Doppler techniques. This suggests that uterine vascular bed alterations should be measured to understand the prognosis of early pregnancy loss during the first trimester.
  • 3.

    【2hr】Retrospective audit of patients presenting for ultrasound with suspicion of appendicitis

    包量

    机译 超声检查怀疑阑尾炎的患者的回顾性检查
    • 作者：Fei YuanMartin Necas
    • 刊名：Australasian Journal of Ultrasound in Medicine
    • 2015年第2期
    摘要：Purpose: To assess the ultrasound performance on patients presenting to Waikato hospital ultrasound department with a clinical suspicion of appendicitis. Method: This was a retrospective audit of 309 patients presenting to our department within business hours with clinical suspicion of appendicitis between September 2012 and March 2014. The patients were evaluated by operators of mixed experience. The scan reports, surgical reports, histology and discharge summaries were reviewed. Results: The overall sensitivity of ultrasound on detecting appendicitis was 50%, the specificity was 98.5%. The positive predictive value and the negative predictive value were 84% and 92.6% respectively. The appendix was visualised in 14% of the true positive cases. When the appendix was visualised, the sensitivity and specificity of ultrasound was 95.2% and 69.2% respectively. Conclusion: The sensitivity of ultrasound to appendicitis was lower than that commonly reported in the literature, but on a par with a recent audit from another tertiary hospital in New Zealand.
  • 4.

    【2hr】A ‘snapshot’ of the visual search behaviours of medical sonographers

    包量

    机译 医疗超声医师的视觉搜索行为的“快照”
    摘要：Introduction: Visual search is a task that humans perform in everyday life. Whether it involves looking for a pen on a desk or a mass in a mammogram, the cognitive and perceptual processes that underpin these tasks are identical. Radiologists are experts in visual search of medical images and studies on their visual search behaviours have revealed some interesting findings with regard to diagnostic errors. In Australia, within the modality of ultrasound, sonographers perform the diagnostic scan, select images and present to the radiologist for reporting. Therefore the visual task and potential for errors is similar to a radiologist. Our aim was to explore and understand the detection, localisation and eye‐gaze behaviours of a group of qualified sonographers. Method: We measured clinical performance and analysed diagnostic errors by presenting fifty sonographic breast images that varied on cancer present and degree of difficulty to a group of sonographers in their clinical workplace. For a sub‐set of sonographers we obtained eye‐tracking metrics such as time‐to‐first fixation, total visit duration and cumulative dwell time heat maps. Results: The results indicate that the sonographers' clinical performance was high and the eye‐tracking metrics showed diagnostic error types similar to those found in studies on radiologist visual search. Conclusion: This study informs us about sonographer visual search patterns and highlights possible ways to improve diagnostic performance via targeted education.
  • 5.

    【2hr】Early 2nd trimester fetal demise in a monochorionic twin pregnancy: A cautionary tale

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    机译 单绒毛膜双胎妊娠中的早孕中期胎儿死亡：一个警示故事
    • 作者：Colin A Walsh
    • 刊名：Australasian Journal of Ultrasound in Medicine
    • 2015年第2期
    摘要：It is well established that the death of one fetus in a monochorionic twin pregnancy places the surviving twin at significant risk for neuro‐developmental delay or death. Although the early 1st trimester “vanishing twin” has not traditionally been considered a major risk, the precise gestational threshold beyond which a surviving twin is at risk remains uncertain. Most experts recommend serial ultrasounds and fetal MRI in the survivor, to look for evidence of ischaemic brain injury. We present a case of early monochorionic twin demise at 14–16 weeks, with evolving ventriculomegaly and ischaemic changes on fetal MRI in the co‐twin, leading to termination of pregnancy at 28 weeks.
  • 6.

    【2hr】Persistent median artery thrombosis: A rare cause of carpal tunnel syndrome

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    机译 持续性中动脉血栓形成：腕管综合征的罕见原因
    摘要：Background: Carpal tunnel syndrome (CTS) is a sporadic event with compression of the median nerve (MN). Persistent median artery (PMA) thrombosis is an exceptionally rare cause of CTS. Case report: 38‐year‐old male presented with acute on subacute right wrist pain with positive Tinel's sign. An ultrasound and computed angiography study confirmed a PMA with thrombosis. The patient was treated with intravenous heparin then discharged home on enoxaparin and warfarin crossover. Discussion: PMA can lead to CTS by compression from the adjacent median nerve. Thrombosis of the PMA can also lead to CTS. Surgical intervention is needed in cases of severe CTS. Carpal tunnel release is usually successful. Excision of the PMA can risk vascular compromise of the digits. Ultrasound is excellent for detecting rare causes of CTS. Conclusion: Ultrasound examination for CTS should include search for PMA and associated anatomical variations.
  • 7.

    【2hr】Scanning the journals

    包量

    机译 扫描日记
    • 作者：
    • 刊名：Australasian Journal of Ultrasound in Medicine
    • 2015年第2期
    摘要：
  • 8.

    【2hr】Advances in mathematical models of fetal growth: implications for ultrasound practice

    包量

    机译 胎儿生长数学模型的进展：对超声实践的启示
    摘要：
  • 9.

    【2hr】Contrast‐enhanced ultrasound of pancreatic tumours

    包量

    机译 胰腺肿瘤超声造影
    摘要：Indication/purpose: To review contrast‐enhanced ultrasound features of the most common pancreatic tumours. Methods: Contrast‐enhanced ultrasound (CEUS) can provide distinctive features of pancreatic tumours that are reported in the present paper, providing radiologic‐pathological correlations and clarifying the main differential diagnosis. Conclusion: Contrast‐enhanced ultrasound plays a well‐established role in the evaluation of pancreatic tumours. When possible, CEUS should be always performed after the initial US diagnosis, in order to improve the accuracy of the first line examination.
  • 10.

    【2hr】A futuristic vision of pocket ultrasound machines: watch this space

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    机译 便携式超声波机器的未来主义视野：观看此空间
    摘要：Introduction: Australian medical ultrasound started in 1959 with the establishment of the Ultrasonics Institute. Since then the technology has advanced tremendously. We are now not only able to obtain clearer images on high specification ultrasound machines but also on pocket‐sized ultrasound machines that are compact, lightweight and affordable. Method: The following descriptive review will examine the indication for use of pocket ultrasound machines in different clinical settings as well as provide evidence of its image clarity and accuracy. Potentially eligible studies were sought primarily through searches of the electronic databases PubMed, Medline (1996–Present), Embase (1996–Present) and Cochrane Library. Conclusion: Pocket ultrasound machines, with appropriate ultrasound knowledge and training, can be incorporated successfully in patient management. The addition of point‐of‐care ultrasound has been shown to improve management recommendations and outcomes.
  • 11.

    【2hr】Ultrasound measurements of the liver: an intra and inter‐rater reliability study

    包量

    机译 肝脏的超声测量：内部和评估者之间的可靠性研究
    摘要：Introduction: Ultrasound is an easy and inexpensive method to rapidly assess the size of the adult liver. The literature addressing reliability of liver measurements using ultrasound is poorly reported and inadequate. In this study, intra and inter‐rater reliability of multiple measurements of the right lobe, left lobe and entire adult liver were assessed. Methods: Two examiners acquired ultrasound images of the liver in multiple positions. Fifteen measurements were taken from each set of images by each examiner. One examiner repeated the images and measurements. Results: Results demonstrated high intra‐rater reliability for all measurements (ICC's 0.67–0.97). Inter‐rater reliability also demonstrated high reliability (ICC's 0.71–0.94) for nine of the fifteen measurements (six representing the right lobe, one representing the left lobe and two representing the entire liver. Further analysis using paired samples t‐tests and Bland Altman plots were performed on these nine measurements. Conclusion: From this study, the most reliable measurements are suggested to be MCL Dome to tip and MCL Max AP for the right lobe and Midline Max AP for the left lobe. The only measurement to truly encompass both lobes (Max Trans) was not shown to be reliable.
  • 12.

    【2hr】Complicated multiple pregnancy referral, treatment and outcomes at the NSW Fetal Therapy Centre

    包量

    机译 新南威尔士州胎儿治疗中心的复杂多胎转诊，治疗和结局
    摘要：Objectives: To determine the indications for referral, sonographic workload, diagnoses and outcomes of women with a multiple pregnancy referred to the New South Wales Fetal Therapy Centre (NSW FTC). Methods: Retrospective cohort study of twin and higher order multiple (HOM) pregnancies referred to the NSW FTC at the Royal Hospital for Women (RHW) Department of Maternal Fetal Medicine (MFM), Sydney from January 2007 to December 2009. Results: There were 176 twin pregnancies (138 monochorionic diamniotic, 29 dichorionic diamniotic and nine monoamniotic), and 26 HOMs referred (23 triplet and three quadruplet pregnancies). Indications for referral were: twin to twin transfusion syndrome (TTTS) 103 women, fetal anomaly 31 women, intrauterine growth restriction (IUGR) 12 women, serial surveillance of twins or HOM 37 women, and fetal reduction of HOM (nine women). In 80.2% the pathological referral diagnosis was confirmed. The average number of ultrasounds was five (range 1–24), with 90 women (45%) receiving invasive therapy. Thirty‐five percent (71) of referrals were from outside Sydney, including eight interstate and 11 overseas referrals. Two‐thirds of out of area referrals were able to return to their referral hospital for birth: 95 women (47%) delivered at RHW. Conclusion: TTTS was the most common reason for referral, with a high concordance between referral and initial diagnosis. RHW accepted a large number of out of area referrals, in keeping with its role as the NSW FTC. Twin and HOM pregnancy referrals represent a significant workload for the 5 department, with many women also requiring invasive therapy.
  • 13.

    【2hr】Accuracy of sonographic fetal gender determination: predictions made by sonographers during routine obstetric ultrasound scans

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    机译 超声检查胎儿性别确定的准确性：超声检查人员在常规产科超声检查中所做的预测
    摘要：Objectives: The purpose of this study was to determine the accuracy of sonographer predictions of fetal gender during routine ultrasounds. Primarily, the study sought to investigate the accuracy of predictions made in the first trimester, as requests from parents wanting to know the gender of their fetus at this early scan are becoming increasingly common. Second and third trimester fetuses were included in the study to confirm the accuracy of later predictions. In addition, the mother's decision to know the gender was recorded to determine the prevalence of women wanting prenatal predictions. Methods: A prospective, cross sectional study was conducted in a specialist private obstetric practice in the Illawarra, NSW. A total of 640 fetuses across three trimesters were examined collectively by seven sonographers. Fetal gender was predicted using the sagittal plane only in the first trimester and either the sagittal or transverse plane in later trimesters. Phenotypic gender confirmation was obtained from hospital records or direct telephone contact with women postnatally. Results: Results confirmed 100% accuracy in predictions made after 14 weeks gestation. The overall success rate in the first trimester group (11–14 weeks) was 75%. When excluding those scans where a prediction could not be made, success rates increased to 91%. Results were less accurate for fetuses younger than 12 weeks, with an overall success rate of 54%. Male fetuses under 13 weeks were more likely to have gender incorrectly or unable to be assigned. After 13 weeks, success rates for correctly predicting males exceeded that of female fetuses. Statistical differences were noted in the success rates of individual sonographers. Sixty seven percent of women were in favour of knowing fetal gender from ultrasound. Publicly insured women were more likely to request gender disclosure than privately insured women. Conclusions: Sonographic gender determination provides high success rates in the first trimester. Results vary depending on sonographer experience, fetal age and fetal gender. Practice guidelines regarding gender disclosure should be developed. Predictions prior to 12 weeks should be discouraged.
  • 14.

    【2hr】Clinical case presentation: life threatening Group A sepsis secondary to HyCoSy

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    机译 临床病例介绍：HyCoSy继发危及生命的A组败血症
    摘要：Hysterosalpingo contrast sonography (HyCoSy) is a commonly performed procedure in the investigation of infertility. Infection is an uncommon complication of this procedure. Should it occur, it is generally mild and amenable to outpatient treatment with oral antibiotics. We present a case of an immunosuppressed woman who underwent HyCoSy for investigation of secondary infertility and developed life‐threatening sepsis with Group A streptococcus.
  • 15.

    【2hr】Scanning the journals

    包量

    机译 扫描日记
    • 作者：
    • 刊名：Australasian Journal of Ultrasound in Medicine
    • 2014年第3期
    摘要：
  • 16.

    【2hr】The development of, and future for, fetal functional cardiac imaging techniques

    包量

    机译 胎儿功能性心脏成像技术的发展和未来
    • 作者：Alec Welsh
    • 刊名：Australasian Journal of Ultrasound in Medicine
    • 2014年第2期
    摘要：
  • 17.

    【2hr】Imaging of slings and meshes

    包量

    机译 吊索和网格的成像
    摘要：The popularity of imaging in pelvic floor medicine continues to increase. Among the various modalities, ultrasound is superior as it is cheap, safe, easily accesible and simple, resulting in high patient compliance. It is the only technique that allows imaging of modern wide‐weave polypropylene sling or mesh implants, and imaging of such implants is commonly required due to the popularity of surgical techniques that involve the placement of slings and meshes. This review article will discuss the role of translabial ultrasound in the evaluation of synthetic implants used in the treatment of urinary incontinence and pelvic organ prolapse.
  • 18.

    【2hr】Increased endometrial vascularity and intraoperative haemorrhage among women undergoing surgical evacuation for retained product of conception

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    机译 接受手术排卵以保留受孕产物的女性子宫内膜血管分布和术中出血增加
    摘要：The aim of this study was to ascertain the incidence of “increased endometrial vascularity” recorded in the ultrasound scan reports, in the context of RPOC and correlate this finding with the incidence of life threatening intra‐operative bleeding.Ultrasound scan reports sometimes mention the presence of increased endometrial / sub‐endometrial vascularity in the context of retained products of conception or secondary post partum haemorrhage. This raises the possibility of serious intra‐operative haemorrhage in the minds of the junior doctors because of the possibility of arterio‐venous malformation. This retrospective case series was designed to find the incidences of increased endometrial vascularity and severe intra‐operative haemorrhage in the patients with RPOC in the south eastern part of Melbourne population. The study found that the incidence of increased endometrial vascularity was 7.57% and none of these patients suffered severe intra‐operative haemorrhage. A literature survey revealed that there were few studies on this topic.
  • 19.

    【2hr】Three patients with signs of acute flail mitral leaflet seen on emergency department echo: a critical constellation within the focused cardiac exam

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    机译 在急诊室回声中看到三名出现急性fl二尖瓣征象的患者：聚焦心脏检查中的关键星座
    摘要：Acute flail mitral leaflet is a time‐sensitive, reversible cause of cardiogenic shock. Transthoracic echocardiography (echo) is increasingly becoming a vital tool for non‐cardiologist physicians who treat patients with undifferentiated chest pain and dyspnoea. The sonographic abnormalities seen in acute flail mitral leaflet are within the boundaries of a focused echo. Individually, these findings are non‐specific. As a constellation, however, they are highly suggestive of this disease process. We present a case series of three patients with acute flail mitral leaflet seen on emergency department echo along with a discussion of the findings and the disease itself.
  • 20.

    【2hr】Congenital high airways obstruction syndrome – first and second trimester diagnosis

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    机译 先天性高气道阻塞综合征–早中期和中期诊断
    摘要：Congenital High Airways Obstruction Syndrome (CHAOS) is a rare condition associated with high fetal or neonatal mortality. Prenatal diagnosis in the second trimester is made by the typical ultrasound features of large echogenic lungs, a flattened or inverted diaphragm, and fetal ascites or hydrops. We present two cases diagnosed at our institution; one in the second trimester, and a first trimester diagnosis. To the best of our knowledge, first trimester diagnosis of CHAOS has not been previously reported.
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