Australasian Journal of Ultrasound in Medicine最新文献_第8页

Brief training in ultrasound equips novice clinicians to accurately and reliably measure jugular venous pressure in obese patients 简短的超声培训使临床医生新手能够准确可靠地测量肥胖患者的颈静脉压

Q3 Medicine

Australasian Journal of Ultrasound in Medicine

Pub Date : 2023-03-01 DOI: 10.1002/ajum.12336

Nicholas A. Pettit, Benjamin S. Pedroja, Hsin Fang Li, Michael Sutcliffe

Introduction/Purpose

Measurement of jugular venous pressure (JVP) by novice clinicians can be unreliable, particularly when evaluating obese patients. Measurement of JVP using ultrasound (uJVP) is simple to perform and provides accurate measurements. This study evaluated whether students and residents inexperienced with ultrasound could rapidly be taught to measure JVP using ultrasound in obese patients with the same accuracy as cardiologists measuring JVP via physical examination. Additionally, this study also evaluated the correlation between qualitative and quantitative JVP assessment.

Methods

This prospective, blinded study compared uJVP measurements performed by novice clinicians after brief training to JVP measurements performed by cardiologists (cJVP) on physical examination. Association between uJVP and cJVP was assessed using linear correlation, agreement and bias were assessed using the Bland–Altman analysis and inter-rater reliability of uJVP was assessed using intraclass correlation coefficient (ICC). The association between qualitative and quantitative JVP assessment was assessed using linear correlation.

Results

Novice clinicians (n = 16) obtained 34 measurements from 26 patients (mean BMI 35.5) and reported moderate-to-high confidence in all measurements. uJVP correlated well with cJVP (r = 0.73) with an average error of 0.06 cm. The estimated uJVP ICC was 0.83 (95% CI = 0.44, 0.96). Qualitative uJVP had only a moderate correlation (r = 0.63) to quantitative uJVP.

Discussion

Novice clinicians often have difficulty assessing JVP on physical examination, particularly in obese patients. Our findings show a high degree of correlation between JVP measurements performed by novice clinicians using ultrasound compared with JVP measurements made by experienced cardiologists on physical examination. Furthermore, novice clinicians were able to be trained quickly, their measurements were determined to be accurate and precise and they expressed moderate-to-high confidence in their results.

Conclusions

After brief training, novice clinicians were able to accurately assess JVP in obese patients as compared to measurements made by experienced cardiologists on physical examination. Results suggest that ultrasound may greatly improve novice clinicians’ JVP assessment accuracy, particularly in obese patients.

临床新手测量颈静脉压(JVP)可能不可靠，尤其是在评估肥胖患者时。使用超声波(uJVP)测量JVP操作简单，测量结果准确。本研究评估了没有超声经验的学生和住院医生是否可以被快速教导使用超声测量肥胖患者的JVP，其准确性与心脏病专家通过身体检查测量JVP相同。此外，本研究还评估了定性和定量JVP评估之间的相关性。方法:这项前瞻性、盲法研究比较了临床新手在接受简短培训后测量的uJVP与心内科医生(cJVP)在体检时测量的uJVP。采用线性相关评估uJVP与cJVP之间的相关性，采用Bland-Altman分析评估一致性和偏倚，采用类内相关系数(ICC)评估uJVP的等级间信度。定性和定量JVP评估之间的关系采用线性相关评估。结果16名临床新手从26名患者(平均BMI为35.5)中获得34项测量结果，并对所有测量结果报告了中等至高的置信度。uJVP与cJVP相关性良好(r = 0.73)，平均误差为0.06 cm。估计uJVP ICC为0.83 (95% CI = 0.44, 0.96)。定性uJVP与定量uJVP只有中度相关(r = 0.63)。临床新手在体格检查中常常难以评估JVP，尤其是肥胖患者。我们的研究结果表明，新手临床医生使用超声波进行的JVP测量与经验丰富的心脏病专家在身体检查中进行的JVP测量之间存在高度相关性。此外，临床医生新手能够快速接受培训，他们的测量被确定为准确和精确，他们对自己的结果表示中等到高度的信心。结论:经过简短的培训，与经验丰富的心脏病专家在体检时的测量结果相比，临床医生新手能够准确地评估肥胖患者的JVP。结果表明，超声可以大大提高临床新手对JVP的评估准确性，特别是对肥胖患者。

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引用次数: 1

Overlapping imaging features between miscarriage of a low-lying gestational sac and cervical ectopic pregnancy 低位妊娠囊流产与宫颈异位妊娠的重叠影像特征

Q3 Medicine

Australasian Journal of Ultrasound in Medicine

Pub Date : 2023-02-27 DOI: 10.1002/ajum.12337

Jessica Teoh, Sumathi Rajendran, Sarika Gupta

Early pregnancy ultrasound must satisfy objective criteria to make a safe diagnosis of miscarriage. The differential diagnosis of low-lying gestational sac includes cervical stage of miscarriage and cervical and caesarean scar ectopic pregnancies. Misdiagnosis can lead to significant maternal morbidity. We describe a pregnancy in a 36-year-old primiparous woman where ultrasound findings of a low-lying gestation sac satisfied criteria for miscarriage; however, dilatation and curettage of pregnancy contents resulted in brisk cervical bleeding. Ultrasound at 6 weeks 6 days of gestation showed an intra-uterine pregnancy of uncertain viability. Repeat scan after 11 days confirmed miscarriage based on an absence of interval progression between scans and no embryonic heartbeat. The collapsed gestational sac (GS) was seen at the level of the internal os with decidual reaction and peri-trophoblastic blood flow. Inferior to the sac, minimally vascular trophoblastic appearing tissue was beginning to distend the upper cervical canal: the sliding sign was positive for the GS and negative for the upper cervical contents. Cervical stroma was clearly seen circumferential to the distending tissue. The patient underwent dilatation and curettage of the uterus complicated by 2000 ml haemorrhage requiring blood transfusion and medical and surgical management with intra-cavitary placement of a Foley catheter. Histopathology confirmed pregnancy tissue with the disruption of cervical epithelium but no true invasion. The patient was counselled to attend a specialist obstetric imaging facility for an early dating ultrasound in future pregnancies. The current body of literature does not describe cases of low-lying gestation sac miscarriage with high-risk features of trophoblastic extension into the cervical canal. We suggest maintaining a high index of suspicion and excluding differential diagnoses as the majority of women have no risk factors for ectopic pregnancy. These cases should be recommended for surgical management.

早期妊娠超声必须满足客观标准才能安全诊断流产。低位妊娠囊的鉴别诊断包括宫颈期流产和宫颈及剖宫产瘢痕异位妊娠。误诊可导致严重的产妇发病率。我们描述了一个怀孕在一个36岁的初产妇超声发现一个低洼的妊娠囊满足流产标准;然而，扩张和刮除妊娠内容物导致宫颈出血。妊娠6周6天超声显示子宫内妊娠生存能力不确定。11天后重复扫描确认流产基于扫描之间没有间隔进展和没有胚胎心跳。孕囊塌陷(GS)可见于内部os水平，伴有蜕膜反应和滋养细胞周围血流。在囊下方，出现的最小血管性滋养细胞组织开始扩张上颈管:滑动征为GS阳性，上颈内容物阴性。宫颈间质在扩张组织周围清晰可见。患者接受了子宫扩张和刮除术，并发2000毫升出血，需要输血，并通过腔内放置Foley导管进行医疗和手术处理。组织病理学证实妊娠组织与破坏宫颈上皮，但没有真正的侵犯。该患者被建议在未来怀孕时到产科专科影像设施进行早期超声检查。目前的文献没有描述具有滋养细胞延伸到宫颈管的高风险特征的低位妊娠囊流产病例。我们建议保持高的怀疑指数和排除鉴别诊断，因为大多数妇女没有异位妊娠的危险因素。这些病例应建议进行手术治疗。

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引用次数: 0

Intraneural vascularity of the median, ulnar and common peroneal nerve: Microvascular ultrasound and pathophysiological implications 正中神经、尺神经和腓总神经的神经内血管:微血管超声和病理生理意义

Q3 Medicine

Australasian Journal of Ultrasound in Medicine

Pub Date : 2023-02-17 DOI: 10.1002/ajum.12334

Johannes Deeg, Felix Mündel, Alexander Loizides, Leonhard Gruber, Hannes Gruber

Objectives

Changes in the microvascular environment are considered crucial in the pathogenesis of compression neuropathies. Several studies have demonstrated elevated intraneural vascularity in severe neuropathy compared with healthy subjects, where intraneural vascularity is considered predominantly undetectable. The aim of this study was to assess and quantify intraneural vasculature by superb microvascular imaging (SMI) in healthy volunteers in the median, ulnar and common peroneal nerve.

Methods

Intraneural vascularity was quantified in 26 healthy volunteers (312 segments overall) by SMI sonography using a 22-MHz linear transducer. Individual nerve segment vascularity was compared with the mean vascularity using one-way ANOVA and Kruskal–Wallis tests, respectively. Vendor-provided quantification and manual vessel count were compared by linear regression analysis.

Results

Intraneural vascularity was detectable in all nerve segments (100.0%). Vessel density was highest in the median nerve at the wrist (1.54 ± 0.44/mm², P < 0.0001) and lowest in the sulcal ulnar nerve (0.90 ± 0.34/mm², P < 0.0001). Vendor-provided automated quantification severely overestimated vascular content compared with manual quantification.

Conclusion

Superb microvascular imaging can facilitate the visualisation of nerve vascularity and even detect local variations in vessel density. The pathophysiological implications for peripheral neuropathies, especially compression neuropathies, warrant further investigation, but the absence of visible intraneural vasculature as a negative finding in the diagnostic of compression neuropathies should be interpreted with caution, as the intraneural vascularity may lie beyond the 18 MHz resolution power of a transducer.

目的微血管环境的改变被认为是压迫性神经病发病的关键。几项研究表明，与健康受试者相比，严重神经病患者的神经内血管增高，在健康受试者中，神经内血管被认为主要无法检测到。本研究的目的是评估和量化健康志愿者在正中神经、尺神经和腓总神经的神经内血管系统。方法采用22 mhz线性换能器对26例健康志愿者(共312节段)进行SMI超声定量检测。分别使用单因素方差分析和Kruskal-Wallis检验比较单个神经节段血管密度与平均血管密度。通过线性回归分析比较供应商提供的定量和人工血管计数。结果100.0%的神经节段均可检出神经内血管。腕部正中神经血管密度最高(1.54±0.44/mm2, P < 0.0001)，尺侧沟神经血管密度最低(0.90±0.34/mm2, P < 0.0001)。与人工定量相比，供应商提供的自动定量严重高估了血管含量。结论精湛的微血管成像技术可以方便地显示神经血管分布，甚至可以发现局部血管密度的变化。周围神经病变，特别是压迫性神经病的病理生理学意义值得进一步研究，但在压迫性神经病的诊断中，缺乏可见的神经内血管作为阴性发现应谨慎解释，因为神经内血管可能超过传感器的18 MHz分辨率。

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引用次数: 1

B-mode ultrasound and contrast-enhanced ultrasound for evaluation of pneumonia: A pictorial essay b超和增强超声对肺炎的评价:一篇图片文章

Q3 Medicine

Australasian Journal of Ultrasound in Medicine

Pub Date : 2023-02-15 DOI: 10.1002/ajum.12332

Ehsan Safai Zadeh, Amjad Alhyari, Johannes Kroenig, Christian Görg, Corinna Trenker, Christoph F. Dietrich, Hajo Findeisen

Due to their often peripheral pleural-based location, pneumonias can be visualised by B-mode ultrasound. Therefore, sonography can be used as an alternative imaging modality to chest X-ray in suspected cases of pneumonia. Depending on the clinical background of the patient, and various underlying pathological mechanisms, a heterogeneous pattern of pneumonia is seen in both B-mode lung ultrasound and contrast-enhanced ultrasound. Here, we describe the spectrum of sonographic manifestations of pneumonic/inflammatory consolidation on B-mode lung ultrasound and contrast-enhanced ultrasound.

由于肺炎通常位于胸膜周围，因此可以通过b超看到。因此，在疑似肺炎病例中，超声可作为胸片的替代成像方式。根据患者的临床背景和各种潜在的病理机制，在b超和增强超声中均可见异质性肺炎。在这里，我们描述了肺b超和增强超声的肺炎/炎症实变的声像图表现。

引用次数: 2

Anatomical distribution of endometriosis: A cross-sectional analysis of transvaginal ultrasound in symptomatic patients 子宫内膜异位症的解剖分布:经阴道超声在有症状患者中的横断面分析

Q3 Medicine

Australasian Journal of Ultrasound in Medicine

Pub Date : 2023-01-19 DOI: 10.1002/ajum.12327

Rodrigo Manieri Rocha, Mathew Leonardi, Allie Eathorne, Mike Armour, George Condous

Purpose

The anatomical distribution of deep endometriosis (DE) is essential in treating patients with symptoms associated with the disease. There is an evidence gap in correlating clinical features and symptoms with disease patterns. The study aimed at determining DE anatomic distribution based on advanced transvaginal ultrasound and describe the relationship with symptoms obtained with the World Endometriosis Foundation Questionnaire.

Methods

A cross-sectional study included 549 ultrasound results and 370 questionnaire responses between July 2018 and January 2021. Descriptive statistics are presented. Continuous variables were compared by a simple t-test and ANOVA and categorical variables by the chi-squared test. Logistic regression and R² values summarised the relationship between positive ultrasound and possible predictor variables (software SAS version 9.4).

Results

The anatomical locations with signs of endometriosis on ultrasound were the right uterosacral ligament (USL) 23.3% (n = 128), left USL 21.3% (n = 117) and bowel 19.1% (n = 105). Endometriomas in the right and left ovaries (14%, n = 77, and 14.7%, n = 81 respectively), superficial endometriosis in 15.5% (n = 85), torus uterinus in 11.7% (n = 64), Pouch of Douglas (POD) in 9.7% (n = 53), rectovaginal septum in 4.2% (n = 23), vaginal fornix in 3.5% (n = 19). A negative ‘sliding-sign’ was noted in 25.3% (n = 139), and ovarian medial immobility was noted frequently (left 20.2%, n = 111 and right 16.9%, n = 93). Dyspareunia, dysmenorrhoea, infertility and family history were associated with endometriosis lesions (P < 0.05). Prediction models based on symptomatology presented low discriminatory power.

Discussion

This large real-life cohort associating the description of the anatomical distribution of endometriosis as seen on advanced TVS in symptomatic patients confirmed that uterosacral ligaments, torus uterinus, ovaries and bowel represent the most common anatomical sites of endometriosis. Also, the dynamic abnormalities elicited via ultrasound, such as the uterus ‘sliding-sign’ and ovarian mobility, remain common. The knowledge of the general locations of identifiable endometriosis on ultrasound and the dynamic abnormalities is essential to sonologists and sonographers in implementing advanced TVS protocols to detect endometriosis. In addition, the different presentations of dyspareunia can be associated with USL and bowel endometriosis. Subfertility might also be associated with USL, ovarian and bowel endo

目的深部子宫内膜异位症（DE）的解剖分布对治疗有相关症状的患者至关重要。在将临床特征和症状与疾病模式联系起来方面存在证据空白。本研究旨在根据先进的经阴道超声确定DE的解剖分布，并描述与世界子宫内膜异位症基金会问卷获得的症状的关系。方法一项横断面研究包括2018年7月至2021年1月期间的549份超声结果和370份问卷调查。介绍了描述性统计。连续变量通过简单t检验和方差分析进行比较，分类变量通过卡方检验进行比较。Logistic回归和R2值总结了超声阳性与可能的预测变量之间的关系（SAS软件9.4版），左USL 21.3%（n＝117）和肠19.1%（n=105）。左右卵巢子宫内膜瘤（分别为14%，n=77和14.7%，n=81），浅表性子宫内膜异位症15.5%（n=85），子宫环面11.7%（n=64），道格拉斯袋9.7%（n=53），直肠阴道隔膜4.2%（n=23），阴道穹隆3.5%（n=19）。25.3%（n=139）出现阴性“滑动征”，卵巢内侧不动频繁出现（左侧20.2%，n=111，右侧16.9%，n=93）。子宫内膜异位症的发生与功能障碍、痛经、不孕和家族史有关（P <； 0.05）。基于症状学的预测模型表现出较低的判别力。讨论这一大型现实生活队列将有症状患者晚期TVS中子宫内膜异位症的解剖分布描述联系起来，证实子宫骶骨韧带、子宫环面、卵巢和肠道是子宫内膜异位最常见的解剖部位。此外，通过超声波引发的动态异常，如子宫“滑动征”和卵巢活动性，仍然很常见。了解超声上可识别的子宫内膜异位症的一般位置和动态异常对于超声学家和超声学家实施先进的TVS方案来检测子宫内膜异位病至关重要。此外，性交困难的不同表现可能与USL和肠道子宫内膜异位症有关。亚生育能力也可能与USL、卵巢和肠道子宫内膜异位症有关。然而，预测模型显示出次优结果。结论子宫内膜异位症主要分布于子宫颈、肠道和卵巢。POD的消失是经常发生的。症状可能与解剖位置有关；然而，预测模型的临床适用性较低。

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引用次数: 2

Australasian sonographers' knowledge, awareness, and attitudes towards the international evidence-based guidelines for the diagnosis of polycystic ovarian syndrome 澳大利亚超声医师对国际多囊卵巢综合征循证诊断指南的知识、意识和态度

Q3 Medicine

Australasian Journal of Ultrasound in Medicine

Pub Date : 2023-01-18 DOI: 10.1002/ajum.12331

Alexandra Guscott, Alison Deslandes, Nayana Parange, Jessie Childs

Introduction/Purpose

Many guidelines have been utilised to diagnose polycystic ovarian syndrome (PCOS). The most recent are the International Evidence Based Guideline for the Assessment and Management of Polycystic Ovary Syndrome 2018 (2018 IEBG). This study aimed to assess the awareness, knowledge, and attitudes of Australasian sonographers' regarding these guidelines.

Methods

An online cross-sectional survey was disseminated to sonographers. Qualitative and quantitative questions were asked around awareness, knowledge, and attitudes towards the 2018 IEBG. Statistical and thematic analyses of the results were performed.

Results

Ninety responses were included in the final analysis. Fifty-two percent (52.2%) of participants were aware of the 2018 IEBG but only 31.1% used it in their workplaces. Fifty-eight percent (57.9%) of participants correctly identified the sonographic features that suggest PCOS, and 3.5% correctly identified all minimum recommended inclusions for reporting a gynaecological ultrasound for PCOS. Prior to being supplied the 2018 IEBG, 15.8% of participants correctly answered clinical scenario-based knowledge questions, which increased to 29.4% correctly after being supplied the guideline; however, this difference was not statistically significant. There were no statistically significant associations between demographics and knowledge of the 2018 IEBG.

Discussion

Several areas of confusion surrounding wording and interpretation of the 2018 IEBG were highlighted. Consideration should be given to barriers of implementation and strategies to overcome these.

Conclusion

More education surrounding the sonographic diagnosis of PCOS and the 2018 IEBG is needed. Scanning protocols used amongst sonographers varied, suggesting that inconsistency in sonographic diagnosis may exist. Future reviews of the 2018 IEBG should focus on reducing ambiguity in wording, which may be responsible for some of the varied interpretation of these guidelines.

介绍/目的许多指南已被用于诊断多囊卵巢综合征(PCOS)。最新的是2018年多囊卵巢综合征评估和管理国际循证指南(2018 IEBG)。本研究旨在评估澳大利亚超声医师对这些指南的认识、知识和态度。方法对超声医师进行在线横断面调查。定性和定量问题围绕意识、知识和对2018年IEBG的态度进行了询问。对结果进行了统计分析和专题分析。结果90份回复被纳入最终分析。52%(52.2%)的参与者知道2018年IEBG，但只有31.1%的人在工作场所使用它。58%(57.9%)的参与者正确识别了提示多囊卵巢综合征的超声特征，3.5%的参与者正确识别了报告多囊卵巢综合征妇科超声的所有推荐的最小包含物。在提供2018年IEBG之前，15.8%的参与者正确回答了基于临床场景的知识问题，在提供指南后，这一比例增加到29.4%;然而，这种差异在统计学上并不显著。人口统计数据与2018年IEBG知识之间没有统计学上的显著关联。会议强调了围绕2018年IEBG措辞和解释的几个混淆领域。应考虑到执行方面的障碍和克服这些障碍的战略。结论应加强对PCOS超声诊断及2018年IEBG的教育。超声医师之间使用的扫描协议各不相同，表明超声诊断可能存在不一致。未来对2018年IEBG的审查应侧重于减少措辞上的歧义，这可能是对这些指南的一些不同解释的原因。

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引用次数: 1

Clinical outcomes of posterior tibial tendon sheath ultrasound-guided corticosteroid injections 超声引导下胫后肌腱鞘皮质类固醇注射的临床效果

Q3 Medicine

Australasian Journal of Ultrasound in Medicine

Pub Date : 2023-01-17 DOI: 10.1002/ajum.12330

Mark Spencer, Matthew Hall, Allison Schafer, Lauren E. Geaney

Objectives

The purpose of this study was to assess the safety of ultrasound-guided corticosteroid injections into the posterior tibial tendon sheath for posterior tibialis tendinopathy. Secondary outcomes include duration of pain relief, amount of pain relief, need for repeat injections and progression to surgery.

Methods

We retrospectively reviewed all patients in our electronic medical record who underwent a posterior tibial tendon sheath (PTTS) steroid injection between 2015 and 2020 for the diagnosis of posterior tibial tendon dysfunction and/or posterior tibialis tendon insufficiency, and/or ankle pain. Demographic information was obtained from the patient record in addition to MRI data, clinical response to injection based on follow-up visits, number of total injections and progression to surgery. Thirty-eight posterior tibial tendon sheath ultrasound-guided injections were administered in 33 patients who met inclusion criteria during the 5-year study period.

Results

Thirty-three patients were included in the study with a total of 38 injections performed. Eighteen of 38 (47%) injections yielded good or better pain relief. Seven of 33 patients (21%) progressed to surgery. There were no reported complications with the 38 performed injections.

Conclusion

Ultrasound-guided corticosteroid injection into the posterior tibial tendon sheath is a safe nonoperative treatment modality for progressive collapsing foot deformity. The efficacy of the injection appears highly variable with 47% of injections yielding ‘good’ or better clinical results. When evaluating body mass index (BMI), obese patients (BMI ≥30.0) were found to have a more sustained response to injection (P = 0.029) and more pain relief (P = 0.049) than non-obese patients.

目的评价超声引导下胫后肌腱鞘内注射皮质类固醇治疗胫后肌腱病变的安全性。次要结局包括疼痛缓解持续时间、疼痛缓解量、需要重复注射和手术进展。方法回顾性分析2015年至2020年间电子病历中所有接受胫骨后腱鞘(PTTS)类固醇注射的患者，以诊断为胫骨后腱功能障碍和/或胫骨后腱功能不全和/或踝关节疼痛。除MRI数据外，还从患者记录中获得了人口统计信息、基于随访的注射临床反应、总注射次数和手术进展。在5年的研究期间，33名符合纳入标准的患者接受了38次胫骨后肌腱鞘超声引导注射。结果33例患者共接受38次注射。38次注射中有18次(47%)获得良好或更好的疼痛缓解。33例患者中有7例(21%)进展到手术。38例注射无并发症报道。结论超声引导下胫骨后腱鞘内注射皮质类固醇是一种安全的非手术治疗进行性塌陷足畸形的方法。注射的疗效似乎变化很大，47%的注射产生“良好”或更好的临床结果。在评估体重指数(BMI)时，肥胖患者(BMI≥30.0)比非肥胖患者有更持久的注射反应(P = 0.029)和更多的疼痛缓解(P = 0.049)。

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引用次数: 0

Reproducibility and feasibility of a handheld ultrasound device compared to a standard ultrasound machine in muscle thickness measurements 手持式超声设备与标准超声设备在肌肉厚度测量中的重复性和可行性比较

Q3 Medicine

Australasian Journal of Ultrasound in Medicine

Pub Date : 2023-01-17 DOI: 10.1002/ajum.12333

Abdulrahman M. Alfuraih, Mohammed A. Alqarni, Hamad S. Alhuthaili, Meshal Y. Mubaraki, Nader N. Alotaibi, Fahad M. Almusalim

Objective

To test the feasibility and reproducibility of a handheld ultrasound device (HUD) compared to a standard ultrasound machine for muscle thickness measurements in healthy participants.

Methods

A prospective cross-sectional study was designed where two novice operators tested the thickness of the vastus lateralis, rectus femoris, and vastus intermedius muscles on recruited asymptomatic participants with no history of muscle diseases. The anterior–posterior thickness of each muscle was measured three times per operator to evaluate intra-operator reproducibility and using two machines to evaluate inter-system reproducibility. Scanning started using the HUD followed by the standard system. Intraclass correlation coefficients (ICC) and simple linear regression were used to test for reproducibility and proportional bias respectively.

Results

A total of 33 male participants volunteered to take part in this study with a mean age of 22.7 years (6.8). Intra-operator reproducibility was almost perfect for both operators on both machines (ICC > 0.80). The measurements difference percentage between the machines ranged from 1.8% to 6.6% and inter-system reproducibility ICC ranged from 0.815 to 0.927 showing excellent reproducibility. Inter-operator reproducibility was poor to moderate on both machines (ICC: 0.522–0.849). Regression analysis showed no proportional bias in the measurements. All measurements were completed successfully using the HUD.

Conclusion

The HUD demonstrated excellent accuracy compared to the standard ultrasound machine for measuring thigh muscle thickness.

目的比较手持式超声仪(HUD)与标准超声仪测量健康人肌肉厚度的可行性和重复性。方法设计了一项前瞻性横断面研究，两名新手操作人员对招募的无肌肉疾病史的无症状参与者测量股外侧肌、股直肌和股中间肌的厚度。每个操作人员测量每块肌肉的前后厚度三次，以评估操作人员内部的可重复性，并使用两台机器评估系统间的可重复性。扫描开始使用HUD，然后是标准系统。用类内相关系数(ICC)和简单线性回归分别检验再现性和比例偏倚。结果33名男性自愿参加本研究，平均年龄22.7岁(6.8岁)。对于两台机器上的两个操作人员来说，操作人员内部的再现性几乎是完美的(ICC > 0.80)。仪器间测量值差异百分比为1.8% ~ 6.6%，系统间重现性ICC为0.815 ~ 0.927，重现性良好。在两台机器上，操作人员之间的重复性较差至中等(ICC: 0.522-0.849)。回归分析显示测量结果无比例偏倚。所有测量均通过HUD成功完成。结论与常规超声仪相比，HUD测量大腿肌肉厚度具有较好的准确性。

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引用次数: 1

Corrigendum to “anomalous vasculature in the neck diagnosed by ultrasound” “用超声诊断颈部血管异常”的勘误表

Q3 Medicine

Australasian Journal of Ultrasound in Medicine

Pub Date : 2022-12-13 DOI: 10.1002/ajum.12328

Sarah Constantine, Denise Roach. Anomalous vasculature in the neck diagnosed by ultrasound. Austr J Ultr Med 2020;23(4):264–268.

In this article, the following Ethical Approval statement was omitted and has been added now.

“This case study arises from a larger research study for which the patient provided written informed consent. This study has been approved by the Human Research Ethics Committee.”

We apologise for this error.

莎拉·康斯坦丁，丹尼斯·罗奇。超声诊断颈部血管系统异常。Austr J Ultr Med 2020；23（4）：264–268。在这篇文章中，省略了以下道德批准声明，现在已添加。“本案例研究源于一项更大规模的研究，患者提供了书面知情同意书。该研究已获得人类研究伦理委员会的批准。”我们对此错误深表歉意。

引用次数: 0

Corrigendum to ‘How bad can life be? A case of concurrent cardiac tamponade and pulmonary embolus’ “生活能有多糟糕?”心包填塞并发肺栓塞1例

Q3 Medicine

Australasian Journal of Ultrasound in Medicine

Pub Date : 2022-12-12 DOI: 10.1002/ajum.12329

Anis Ta′eed, Ai-Ming Wong, John Mulder, Yang Yang. How bad can life be? A case of concurrent cardiac tamponade and pulmonary embolus. Austr J Ultr Med 2020;23(2):140–143.

In this article, the following Written Consent statement was missed and has been added now.

‘Written consent has been obtained for this case to be published’.

We apologise for this error.

Anis Ta 'eed，王爱明，John Mulder，杨洋。生活能有多糟糕?心包填塞合并肺栓塞1例。中华医学杂志，2020;23(2):140-143。在本文中，遗漏了以下书面同意声明，现已添加。"已取得发表本案例的书面同意"我们为这个错误道歉。

引用次数: 0

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