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AIUM Practice Parameter for the Performance of Neurosonography in Neonates and Infants, 2024 Revision AIUM 《新生儿和婴儿神经电图操作规范》,2024 年修订版。
IF 2.1 4区 医学 Q2 ACOUSTICS Pub Date : 2024-08-20 DOI: 10.1002/jum.16551
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引用次数: 0
Assessment of Fetal Ventricular Size and Shape in Women With Intrahepatic Cholestasis of Pregnancy Using Speckle Tracking 利用斑点追踪技术评估妊娠期肝内胆汁淤积症妇女的胎儿脑室大小和形状
IF 2.1 4区 医学 Q2 ACOUSTICS Pub Date : 2024-08-19 DOI: 10.1002/jum.16554
Rui Li MD, Wan Wang MS, Xia Qiu MS, Ting He MS, Xiaoqin Tang MS

Objective

To examine the effect of intrahepatic cholestasis of pregnancy (ICP) on fetal heart morphology.

Methods

This case–control study was conducted with 40 women with ICP and 54 pregnant controls. Fetal heart quantification based on speckle tracking technology was used to assess the morphology of the fetal right and left ventricles. Routine ventricular size parameters, global and 24-segment spherical indices (SIs) were measured and compared between groups.

Results

The routine fetal cardiac parameters, global and right-ventricular SIs did not differ between the ICP and control groups. The left-ventricular apical (segments 16-24) SIs were lower in the ICP group than in the control group (P < .05), with no significant difference in the other left-ventricular segments.

Conclusions

Subclinical morphological changes were observed in the left ventricular apical segments of the fetal hearts in women with ICP, which indicates an intrauterine environment with high bile acid concentrations. Twenty-four-segment SIs can be used to effectively evaluate these changes.

目的:探讨妊娠期肝内胆汁淤积症(ICP)对胎儿心脏形态的影响:研究妊娠期肝内胆汁淤积症(ICP)对胎儿心脏形态的影响:这项病例对照研究的对象是 40 名患有 ICP 的孕妇和 54 名对照组孕妇。采用斑点追踪技术对胎儿心脏进行量化,以评估胎儿左右心室的形态。测量了常规心室大小参数、整体和24节球形指数(SIs),并进行了组间比较:结果:胎儿常规心脏参数、整体和右心室球形指数在ICP组和对照组之间没有差异。ICP组的左心尖(第16-24节)SIs低于对照组(P 结论:ICP组的SIs低于对照组(P):在 ICP 孕妇的胎心左室心尖段观察到了亚临床形态学变化,这表明宫内环境中胆汁酸浓度较高。二十四节段 SI 可用于有效评估这些变化。
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引用次数: 0
AIUM Practice Parameter for the Performance of Ultrasound of the Female Pelvis, 2024 Revision AIUM 女性盆腔超声操作规范,2024 年修订版。
IF 2.1 4区 医学 Q2 ACOUSTICS Pub Date : 2024-08-19 DOI: 10.1002/jum.16556
<p>The American Institute of Ultrasound in Medicine (AIUM) is a multidisciplinary association dedicated to advancing the safe and effective use of ultrasound in medicine through professional and public education, research, development of clinical practice parameters, and accreditation of practices performing ultrasound examinations.</p><p>The AIUM Practice Parameter for the Performance of Ultrasound of the Female Pelvis was developed and revised by the American Institute of Ultrasound in Medicine (AIUM) in collaboration with other organizations whose members use ultrasound for performing these examinations (see “Acknowledgments”). Recommendations for personnel requirements, the request for the examination, documentation, quality assurance, and safety may vary among the organizations and may be addressed by each separately.</p><p>This Practice Parameter is intended to provide the medical ultrasound community with recommendations for the performance and recording of high-quality ultrasound examinations. The parameter reflects what the AIUM considers the appropriate criteria for this type of ultrasound examination but is not intended to establish a legal standard of care. Examinations performed in this specialty area are expected to follow the Parameter with the recognition that deviations may occur depending on the clinical situation.</p><p>Physicians interpreting or performing this type of ultrasound examination should meet the specified AIUM Training Guidelines<span><sup>1</sup></span> in accordance with AIUM accreditation policies.<span><sup>2</sup></span></p><p>Sonographers performing the ultrasound examination should be appropriately credentialed<span><sup>3</sup></span> in the specialty area in accordance with AIUM accreditation policies.<span><sup>2</sup></span></p><p>Physicians not personally performing the examination must provide supervision, as defined by the Centers for Medicare and Medicaid Services Code of Federal Regulations 42 CFR §410.32,<span><sup>4</sup></span> which is available from the U.S. Government Publishing Office.</p><p>The written or electronic request for an ultrasound examination must originate from a physician or other appropriately licensed health care provider or under the provider's direction. The clinical information provided should allow for the performance and interpretation of the appropriate ultrasound examination and should be consistent with relevant legal and local health care facility requirements.</p><p>The following section details the examination to be performed for each organ and anatomic region in the female pelvis. All relevant structures should be identified by the transabdominal and/or transvaginal approach. A transrectal or transperineal approach may be useful in patients who are not candidates for introduction of a vaginal transducer and in assessing the patient with pelvic organ prolapse. More than one approach may be necessary.<span><sup>5, 6</sup></span></p><p>Accurate and complete documentat
Cohen, MDMalak Itani, MDDArleen Li, MDMichelle Melany, MDDRoya Sohaey, MD SPRJudy Estroff, MDJeffrey Tutman, MD SRURochelle E. Andreotti, MDNadia J. Khati, MDDRachel Bo-ming Liu, MD, FACEP, FAIUM, ChairMargarita V. Revzin, MD MS, FSRU, FAIUM, Vice ChairTracy Anton, MDDr.Khati, MDRachel Bo-ming Liu, MD, FACEP, FAIUM, ChairMargarita V. Revzin, MD, MS, FSRU, FAIUM, Vice ChairTracy Anton, BS, RDMS, RDCS, FAIUMCreagh T. Boulger, MD, FAIUMJohn R.Eisenbrey, PhD, FAIUMRob Goodman, MB, BChir, FAIUMEthan J. Halpern, MD, FAIUMOliver Daniel Kripfgans, PhD, FAIUMJuliana Gevaerd Martins, MDJohn Stephen Pellerito, MD, FACR, FAIUM, FSRUJames M. Shwayder, MD, JD.Shwayder, MD, JD, FAIUMJean Lea Spitz, MPH, CAE, RDMS, FAIUM, FSDMS 原始版权 1995 年;1999 年、2004 年、2006 年、2009 年、2014 年、2019 年、2024 年修订;2015 年更名
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引用次数: 0
Value of Two-Dimensional Shear-Wave Elastography in Differentiating Pancreatic Steatosis From Pancreatic Fibrosis 二维剪切波弹性成像技术在区分胰腺脂肪变性和胰腺纤维化中的价值
IF 2.1 4区 医学 Q2 ACOUSTICS Pub Date : 2024-08-17 DOI: 10.1002/jum.16541
Zhenzhen Chen MS, Huiyang Wang MD, MS, Tian'an Jiang MD, PhD

Objectives

Pancreatic steatosis (PS) and pancreatic fibrosis (PF) both show increased pancreatic echogenicity on conventional B-mode ultrasound. In this study, we assessed the applicability of two-dimensional shear-wave elastography (2D-SWE) for their discrimination.

Methods

We gathered data from 120 adults with valid 2D-SWE measurements, comprising 40 healthy individuals, 55 individuals diagnosed with PS via non-enhanced computed tomography (CT), and 25 patients clinically diagnosed with non-calcific chronic pancreatitis. The participants were divided into three groups: normal pancreas (NP), PS, and PF. pancreatic echogenicity, pancreatic stiffness, and CT values between groups were analyzed.

Results

The 2D-SWE and CT values among the NP, PS, and PF groups all showed significant differences (P < .001). For the diagnosis of PS and PF using 2D-SWE, the area under the curve (AUC) values were 0.9100 and 0.9940, respectively, with optimal cut-off values of 5.7 kPa for predicting PS and 8.2 kPa for predicting PF.

Conclusions

The 2D-SWE technique enabled rapid and quantitative assessment of the hardness of hyperechoic pancreas visualized on conventional B-mode ultrasound, which holds certain value in distinguishing PS from PF.

目的:胰腺脂肪变性(PS)和胰腺纤维化(PF)在传统 B 型超声波检查中均显示胰腺回声增强。在这项研究中,我们评估了二维剪切波弹性成像(2D-SWE)在鉴别这两种疾病方面的适用性:我们收集了 120 名成人的有效二维剪切波弹性测量数据,其中包括 40 名健康人、55 名通过非增强型计算机断层扫描(CT)确诊为 PS 的患者和 25 名临床诊断为非钙化性慢性胰腺炎的患者。参与者被分为三组:正常胰腺组(NP)、PS 组和 PF 组,对各组之间的胰腺回声、胰腺硬度和 CT 值进行了分析:结果:NP 组、PS 组和 PF 组的二维-SWE 和 CT 值均有显著差异(P 结论:二维-SWE 和 CT 值均可用于胰腺超声检查:二维-SWE技术可快速定量评估常规B型超声所见高回声胰腺的硬度,对鉴别PS和PF有一定价值。
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引用次数: 0
Computer-Aided Classification of Breast Lesions Based on US RF Time Series Using a Novel Machine Learning Approach 利用新型机器学习方法,基于 US 射频时间序列对乳腺病变进行计算机辅助分类
IF 2.1 4区 医学 Q2 ACOUSTICS Pub Date : 2024-08-14 DOI: 10.1002/jum.16542
Mahsa Arab MSc, Ali Fallah PhD, Saeid Rashidi PhD, Maryam Mehdizadeh Dastjerdi PhD, Nasrin Ahmadinejad MD

Objectives

One of the most promising adjuncts for screening breast cancer is ultrasound (US) radio-frequency (RF) time series. It has the superiority of not requiring any supplementary equipment over other methods. This research aimed to propound a machine learning (ML) approach for automatically classifying benign, probably benign, suspicious, and malignant breast lesions based on the features extracted from the accumulated US RF time series.

Methods

In this article, 220 data of the aforementioned categories, recorded from 118 patients, were analyzed. The dataset, named RFTSBU, was registered by a SuperSonic Imagine Aixplorer medical/research system equipped with a linear transducer. The regions of interest (ROIs) of the B-mode images were manually selected by an expert radiologist before computing the suggested features. Regarding time, frequency, and time-frequency domains, 291 various features were extracted from each ROI. Finally, the features were classified by a pioneering technique named the reference classification method (RCM). Furthermore, the Lee filter was applied to evaluate the effectiveness of reducing speckle noise on the outcomes.

Results

The accuracy of two-class, three-class, and four-class classifications were respectively calculated 98.59 ± 0.71%, 98.13 ± 0.69%, and 96.10 ± 0.66% (considering 10 repetitions) while support vector machine (SVM) and K-nearest neighbor (KNN) classifiers with 5-fold cross-validation were utilized.

Conclusions

This article represented the proposed approach, named CCRFML, to distinguish between breast lesions based on registered in vivo RF time series employing an ML framework. The proposed method's impressive level of classification accuracy attests to its capability of effectively assisting medical professionals in the noninvasive differentiation of breast lesions.

目的:超声波(US)射频(RF)时间序列是筛查乳腺癌最有前途的辅助方法之一。与其他方法相比,它具有无需任何辅助设备的优越性。本研究旨在提出一种机器学习(ML)方法,根据从累积的 US 射频时间序列中提取的特征自动对良性、可能良性、可疑和恶性乳腺病变进行分类:本文分析了 118 名患者的 220 个上述类别的数据。数据集被命名为 RFTSBU,由配备线性传感器的 SuperSonic Imagine Aixplorer 医疗/研究系统登记。在计算所建议的特征之前,B 型图像的感兴趣区(ROI)由放射科专家手动选定。在时域、频域和时频域方面,从每个 ROI 提取了 291 个不同的特征。最后,采用一种名为 "参考分类法(RCM)"的开创性技术对这些特征进行分类。此外,还应用了李氏滤波器来评估减少斑点噪声对结果的影响:结果:利用支持向量机(SVM)和 K 近邻(KNN)分类器进行 5 倍交叉验证,计算出两类、三类和四类分类的准确率分别为 98.59 ± 0.71%、98.13 ± 0.69% 和 96.10 ± 0.66%(考虑到 10 次重复):本文介绍了所提出的一种名为 CCRFML 的方法,该方法采用 ML 框架,根据登记的活体射频时间序列区分乳腺病变。该方法的分类准确率令人印象深刻,证明了它能有效地帮助医疗专业人员对乳腺病变进行无创区分。
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引用次数: 0
Histo-Anatomy and Sonographic Examination for the Retrocalcaneal Bursal Complex: EURO-MUSCULUS/USPRM Approach 滑囊后复合体的组织解剖学和超声检查:EURO-MUSCULUS/USPRM 方法。
IF 2.1 4区 医学 Q2 ACOUSTICS Pub Date : 2024-08-13 DOI: 10.1002/jum.16544
Vincenzo Ricci MD, Giulio Cocco MD, PhD, Kamal Mezian MD, PhD, Ke-Vin Chang MD, PhD, Giorgio Tamborrini MD, Ondřej Naňka MD, PhD, Levent Özçakar MD

Insertional Achilles tendinopathy is an umbrella medical term referring to pain and swelling on the posterior aspect of the calcaneus. High-resolution ultrasound imaging is commonly used in daily practice to assess the pathological changes of the Achilles tendon, cortical bone of the calcaneus, and soft tissues located inside the retrocalcaneal space to optimize the management of relevant patients. To the best of our knowledge, a standardized ultrasound protocol to evaluate the retrocalcaneal bursal complex is lacking in the pertinent literature. In this sense, our step-by-step sonographic approach is intended to be an easy and ready-to-use guide for sonographers/physicians in daily practice to assess this anatomical complex in patients with Achilles tendinopathy. Needless to say, the peculiar histological features of this V-shaped synovial/fibrocartilaginous bursa surrounding the posteroinferior wedge of the Kager's fat pad and the retrocalcaneal space make the examination challenging.

插入性跟腱病是一个总括性医学术语,指的是小腿后侧的疼痛和肿胀。高分辨率超声波成像通常用于评估跟腱、小腿皮质骨和跟骨后间隙内软组织的病理变化,以优化相关患者的治疗。据我们所知,相关文献中缺乏评估腓骨后滑囊复合体的标准化超声波方案。从这个意义上讲,我们的分步超声检查法旨在为超声技师/医生在日常工作中评估跟腱病患者的这一解剖复合物提供简便易行的指南。毋庸置疑,这个 V 形滑膜/纤维软骨囊的组织学特征非常特殊,围绕着卡格氏脂肪垫后内侧楔形区和跗骨后间隙,这使得检查具有挑战性。
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引用次数: 0
Prenatal Diagnosis of Persistent Left Superior Vena Cava Using High-Definition Flow Render Mode and Spatiotemporal Image Correlation 利用高清血流渲染模式和时空图像相关性对持续性左上腔静脉进行产前诊断
IF 2.1 4区 医学 Q2 ACOUSTICS Pub Date : 2024-08-13 DOI: 10.1002/jum.16550
Tian-gang Li MD, Wen-rui Wu MD, Bin Ma MD, Zhi-heng Yan MD, Ke-xiong Niu MD

Objective

This study aimed to assess the use of two-dimensional (2D) ultrasound combined with high-definition flow (HD-flow) render mode and spatiotemporal image correlation (STIC) in diagnosing and classifying fetal persistent left superior vena cava (PLSVC).

Methods

Overall, 114 cases of fetal PLSVC were diagnosed using 2D ultrasound combined with STIC, and 114 normal fetuses of the same gestational week were selected. These cases were retrospectively analyzed to evaluate the effectiveness of the diagnostic approach.

Results

All 114 PLSVC cases were diagnosed using 2D ultrasound combined with STIC. Although the diagnostic coincidence rate of PLSVC in the HD-flow combined with STIC was similar to that in the 2D ultrasound combined with HD-flow (96.8 vs 96.2%), 2D ultrasound with STIC enabled dynamic visualization of the PLSVC, furthering prenatal diagnosis. These cases were classified as type I PLSVC: 80 cases of type Ia, 29 cases of type Ib, and 5 cases of type Ic. Seventy isolated PLSVC cases (61.4%) were noted, whereas 44 cases (35.6%) were associated with concomitant structural abnormalities. Intracardiac structural malformations accounted for the highest proportion (n = 53, 58.89%), followed by single umbilical artery and facial/bodily abnormalities (n = 10, 11.11%).

Conclusion

Combining HD-flow and STIC complements 2D ultrasound in diagnosing and classifying fetal PLSVC, demonstrating significant clinical relevance.

研究目的该研究旨在评估二维(2D)超声结合高清血流(HD-flow)渲染模式和时空图像相关(STIC)在胎儿持续性左上腔静脉(PLSVC)诊断和分类中的应用:方法: 使用二维超声结合 STIC 诊断了 114 例胎儿持续性左上腔静脉(PLSVC),并选择了 114 例相同孕周的正常胎儿。对这些病例进行回顾性分析,以评估诊断方法的有效性:结果:所有114例PLSVC病例都是通过二维超声结合STIC诊断出来的。虽然高清血流联合 STIC 的 PLSVC 诊断吻合率与二维超声联合高清血流相似(96.8% vs 96.2%),但二维超声联合 STIC 可动态观察 PLSVC,从而进一步提高产前诊断的准确率。这些病例被分为 I 型 PLSVC:80 例 Ia 型、29 例 Ib 型和 5 例 Ic 型。其中 70 例(61.4%)为孤立的 PLSVC,44 例(35.6%)伴有结构异常。心内结构畸形所占比例最高(53 例,58.89%),其次是单脐动脉和面部/体型异常(10 例,11.11%):结论:结合高清血流和 STIC 可补充二维超声诊断和分类胎儿 PLSVC,具有重要的临床意义。
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引用次数: 0
Ultrasound-Guided Polypectomy 超声引导下的息肉切除术:评估在诊室中切除子宫内膜息肉的新技术。
IF 2.1 4区 医学 Q2 ACOUSTICS Pub Date : 2024-08-13 DOI: 10.1002/jum.16548
Papri Sarkar MD, Adriana Vest MD, Marisa Baker MD, Lauri Silver Hochberg MD

Objective

To present a novel technique for office resection of pedunculated endometrial polyps under ultrasound guidance.

Methods

A prospective trial was conducted at an academic center where women with abnormal uterine bleeding (AUB) who were diagnosed an endometrial polyp following saline infusion sonogram (SIS), were offered polyp removal under ultrasound guidance using a universal grasping forceps (2.5 mm × 25 cm). The primary outcome was to evaluate the feasibility of this technique for complete removal of the polyp. The secondary outcomes were to evaluate the patients' pain score, satisfaction score using visual analogue score (VAS), and efficacy of the technique in alleviating symptoms in patients with AUB due to polyps.

Results

Thirty patients participated, with a mean age of 54.8 ± 11 years. Average polyp volume was 1.87 cm3 and mean duration for polypectomy was 11 minutes 31 seconds. The median pain score immediately post-procedure was 5 (0–9). We were unable to complete the procedure in two patients due to patient discomfort and poor visualization. Complete removal of polyp was ensured by checking for a thin endometrial echo at the end of the procedure and by performing SIS at 3-months post-procedure. Of the 22 patients who returned for follow-up, 19 (86.36%) showed no evidence of polyp on SIS and all reported resolution of AUB symptoms. The median satisfaction score at the follow-up was 10/10. Adequate pathology samples were obtained from all cases, diagnosing malignancy in one and endometrial hyperplasia in one patient.

Conclusion

This technique offers safe and effective removal of pedunculated endometrial polyps in an office setting, avoiding the need for general anesthesia. It can be offered as a therapeutic option at the initial point of contact, providing symptom relief and tissue diagnosis while reducing costs and patient visits.

目的介绍一种在超声引导下切除有蒂子宫内膜息肉的新技术:一家学术中心开展了一项前瞻性试验,在盐水灌注超声检查(SIS)后确诊为子宫内膜息肉的异常子宫出血(AUB)妇女可在超声引导下使用通用抓取钳(2.5 mm × 25 cm)切除息肉。主要结果是评估该技术完全切除息肉的可行性。次要结果是评估患者的疼痛评分、使用视觉模拟评分(VAS)的满意度评分以及该技术在缓解因息肉引起的 AUB 患者症状方面的疗效:30名患者参与了此次研究,平均年龄(54.8±11)岁。息肉平均体积为 1.87 立方厘米,息肉切除术的平均时间为 11 分 31 秒。术后即刻疼痛评分中位数为 5(0-9 分)。由于患者不适和视野不佳,我们无法完成两名患者的手术。我们在手术结束时检查子宫内膜回声是否变薄,并在术后 3 个月进行 SIS 检查,以确保息肉完全切除。在 22 位复诊的患者中,19 位(86.36%)在 SIS 检查中未发现息肉,所有患者均表示 AUB 症状已得到缓解。随访满意度的中位数为 10/10。所有病例都获得了足够的病理样本,其中一名患者诊断为恶性肿瘤,一名患者诊断为子宫内膜增生:结论:该技术可在诊室环境下安全有效地切除有蒂的子宫内膜息肉,无需全身麻醉。该技术可在初次接触时作为一种治疗选择,在缓解症状和组织诊断的同时,减少费用和患者就诊次数。
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引用次数: 0
AIUM Practice Parameter for the Performance of Vascular Ultrasound for Postoperative Assessment of Hemodialysis Access, 2024 Revision AIUM 《血管超声术后评估血液透析通路的操作规范》,2024 年修订版。
IF 2.1 4区 医学 Q2 ACOUSTICS Pub Date : 2024-08-13 DOI: 10.1002/jum.16549
<p>The American Institute of Ultrasound in Medicine (AIUM) is a multidisciplinary association dedicated to advancing the safe and effective use of ultrasound in medicine through professional and public education, research, development of clinical practice parameters, and accreditation of practices performing ultrasound examinations.</p><p>The AIUM Practice Parameter for the Performance of Vascular Ultrasound for Postoperative Assessment of Hemodialysis Access was revised by the American Institute of Ultrasound in Medicine (AIUM) in collaboration with other organizations whose members use ultrasound for performing this examination(s) (see “Acknowledgments”). Recommendations for personnel requirements, the request for the examination, documentation, quality assurance, and safety may vary among the organizations and may be addressed by each separately.</p><p>This Practice Parameter is intended to provide the medical ultrasound community with recommendations for the performance and recording of high-quality ultrasound examinations. The parameter reflects what the AIUM considers the appropriate criteria for this type of ultrasound examination but is not intended to establish a legal standard of care. Examinations performed in this specialty area are expected to follow the Parameter with the recognition that deviations may occur depending on the clinical situation.</p><p>As the number of patients with kidney failure requiring hemodialysis each year exceeds 660,000 patients, the initial creation and maintenance of functional hemodialysis access is an increasingly critical healthcare concern.<span><sup>1</sup></span> To improve the care of hemodialysis patients, the National Kidney Foundation established the Kidney Disease Outcomes Quality Initiative (KDOQI) in 2000 and updated it in 2006 and 2019.<span><sup>2-4</sup></span> The project set recommendations for placement and monitoring of hemodialysis access. Overall, there has been a movement toward earlier and more frequent hemodialysis in patients with chronic kidney disease, which in turn has resulted in more complications, requiring an estimated 68% increase in interventions to repair accesses.<span><sup>5</sup></span></p><p>The failure rate of hemodialysis access in the first year is high.<span><sup>6</sup></span> In 5.1% of patients, early thrombosis occurs within 18 days of arteriovenous fistula (AVF) creation and is associated with small arterial diameter, forearm location, small draining vein diameter, protamine use, female sex, surgeon frustration/concern during access creation procedure, and reduced or absent thrill at surgery.<span><sup>7</sup></span> After fistula maturation and use, subsequent failure is frequently associated with thrombosis secondary to underlying focal stenosis, most commonly at the anastomosis. Clinical monitoring of AVF function is recommended to detect deterioration in function before thrombosis occurs.<span><sup>8-10</sup></span> However, in arteriovenous grafts (AVGs
美国医学超声研究所 (AIUM) 是一个多学科协会,致力于通过专业和公共教育、研究、临床实践参数的开发以及对超声检查实践的认证,推动超声在医学中安全有效的应用。美国医学超声学会(AIUM)与其他组织合作修订了《AIUM 血管超声术后评估血液透析通路操作规范》(见 "致谢"),这些组织的成员均使用超声进行此项检查(见 "致谢")。对人员要求、检查要求、文件记录、质量保证和安全性的建议可能因组织而异,可由各组织分别处理。本实践参数旨在为医学超声界提供有关执行和记录高质量超声检查的建议。本规范反映了 AIUM 认为此类超声检查的适当标准,但并不旨在制定法律护理标准。随着每年需要进行血液透析的肾衰竭患者人数超过 66 万,最初建立和维护功能性血液透析通路已成为日益重要的医疗保健问题1。为了改善血液透析患者的护理,美国国家肾脏基金会于 2000 年制定了肾脏疾病结果质量倡议(KDOQI),并于 2006 年和 2019 年对其进行了更新2-4。总体而言,慢性肾脏病患者血液透析的时间越来越短,频率越来越高,这反过来又导致了更多的并发症,估计需要修复通路的干预措施增加了 68%。5 血液透析通路第一年的失败率很高。6 5.1%的患者在动静脉瘘(AVF)创建后 18 天内出现早期血栓形成,这与动脉直径小、位于前臂、引流静脉直径小、使用原胺、女性、外科医生在通路创建过程中感到沮丧/担忧以及手术时激动减少或消失有关。7 在瘘管成熟和使用后,随后的失败经常与继发于潜在局灶性狭窄(最常见于吻合处)的血栓形成有关。建议对动静脉瘘功能进行临床监测,以便在血栓形成前发现功能恶化。8-10 然而,在动静脉移植物(AVG)中,临床评估结果正常的大量患者可能存在隐匿性狭窄。在对 40,132 名 CMS 受益者进行的数据分析中,经皮介入治疗对新通路或低通路流量患者的益处最大。本操作规范旨在帮助医生通过超声评估血液透析通路,确保高质量的诊断检查,并促进对潜在抢救方案的进一步了解。虽然下肢血液透析移植物在没有可用上肢通路的患者中发挥着重要作用,但下肢血液透析移植物评估的多普勒诊断标准却不太明确。进行此项检查没有绝对禁忌症,但可能会因身体限制而无法进行完整的双相多普勒检查,例如存在留置导管、开放性伤口、近期手术、疼痛、瘢痕组织或钙化(尤其是在多个穿刺点区域)、严重水肿、挛缩或其他无法移动的原因。根据 AIUM 认证政策,执行超声检查的超声技师应在专业领域获得适当的认证21。
{"title":"AIUM Practice Parameter for the Performance of Vascular Ultrasound for Postoperative Assessment of Hemodialysis Access, 2024 Revision","authors":"","doi":"10.1002/jum.16549","DOIUrl":"10.1002/jum.16549","url":null,"abstract":"&lt;p&gt;The American Institute of Ultrasound in Medicine (AIUM) is a multidisciplinary association dedicated to advancing the safe and effective use of ultrasound in medicine through professional and public education, research, development of clinical practice parameters, and accreditation of practices performing ultrasound examinations.&lt;/p&gt;&lt;p&gt;The AIUM Practice Parameter for the Performance of Vascular Ultrasound for Postoperative Assessment of Hemodialysis Access was revised by the American Institute of Ultrasound in Medicine (AIUM) in collaboration with other organizations whose members use ultrasound for performing this examination(s) (see “Acknowledgments”). Recommendations for personnel requirements, the request for the examination, documentation, quality assurance, and safety may vary among the organizations and may be addressed by each separately.&lt;/p&gt;&lt;p&gt;This Practice Parameter is intended to provide the medical ultrasound community with recommendations for the performance and recording of high-quality ultrasound examinations. The parameter reflects what the AIUM considers the appropriate criteria for this type of ultrasound examination but is not intended to establish a legal standard of care. Examinations performed in this specialty area are expected to follow the Parameter with the recognition that deviations may occur depending on the clinical situation.&lt;/p&gt;&lt;p&gt;As the number of patients with kidney failure requiring hemodialysis each year exceeds 660,000 patients, the initial creation and maintenance of functional hemodialysis access is an increasingly critical healthcare concern.&lt;span&gt;&lt;sup&gt;1&lt;/sup&gt;&lt;/span&gt; To improve the care of hemodialysis patients, the National Kidney Foundation established the Kidney Disease Outcomes Quality Initiative (KDOQI) in 2000 and updated it in 2006 and 2019.&lt;span&gt;&lt;sup&gt;2-4&lt;/sup&gt;&lt;/span&gt; The project set recommendations for placement and monitoring of hemodialysis access. Overall, there has been a movement toward earlier and more frequent hemodialysis in patients with chronic kidney disease, which in turn has resulted in more complications, requiring an estimated 68% increase in interventions to repair accesses.&lt;span&gt;&lt;sup&gt;5&lt;/sup&gt;&lt;/span&gt;&lt;/p&gt;&lt;p&gt;The failure rate of hemodialysis access in the first year is high.&lt;span&gt;&lt;sup&gt;6&lt;/sup&gt;&lt;/span&gt; In 5.1% of patients, early thrombosis occurs within 18 days of arteriovenous fistula (AVF) creation and is associated with small arterial diameter, forearm location, small draining vein diameter, protamine use, female sex, surgeon frustration/concern during access creation procedure, and reduced or absent thrill at surgery.&lt;span&gt;&lt;sup&gt;7&lt;/sup&gt;&lt;/span&gt; After fistula maturation and use, subsequent failure is frequently associated with thrombosis secondary to underlying focal stenosis, most commonly at the anastomosis. Clinical monitoring of AVF function is recommended to detect deterioration in function before thrombosis occurs.&lt;span&gt;&lt;sup&gt;8-10&lt;/sup&gt;&lt;/span&gt; However, in arteriovenous grafts (AVGs","PeriodicalId":17563,"journal":{"name":"Journal of Ultrasound in Medicine","volume":"43 11","pages":"E39-E49"},"PeriodicalIF":2.1,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jum.16549","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141971358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Between-Visit Reproducibility of Shear Wave Viscoelastography in Volunteers and Patients With Metabolic Dysfunction-Associated Steatotic Liver Disease 志愿者和代谢功能障碍相关性脂肪性肝病患者剪切波粘弹性成像检查间的再现性
IF 2.1 4区 医学 Q2 ACOUSTICS Pub Date : 2024-08-08 DOI: 10.1002/jum.16538
Ladan Yazdani PhD, Sathiyamoorthy Selladurai PhD, Iman Rafati MSc, Manish Bhatt PhD, Emmanuel Montagnon PhD, Boris Chayer MSc, Damien Olivié MD, Jeanne-Marie Giard MD, MPH, Giada Sebastiani MD, Bich N. Nguyen MD, Guy Cloutier PhD, Eng, An Tang MD, MSc

Objective

To assess the reproducibility of six ultrasound (US)-determined shear wave (SW) viscoelastography parameters for assessment of mechanical properties of the liver in volunteers and patients with biopsy-proven metabolic dysfunction-associated steatotic liver disease (MASLD) or metabolic dysfunction-associated steatohepatitis (MASH).

Methods

This prospective, cross-sectional, institutional review board-approved study included 10 volunteers and 20 patients with MASLD or MASH who underwent liver US elastography twice, at least 2 weeks apart. SW speed (SWS), Young's modulus (E), shear modulus (G), SW attenuation (SWA), SW dispersion (SWD), and viscosity were computed from radiofrequency data recorded on a research US scanner. Linear mixed models were used to consider the sonographer on duty as a confounder. The reproducibility of measurements was assessed by intraclass correlation coefficient (ICC), coefficient of variation (CV), reproducibility coefficient (RDC), and Bland-Altman analyses.

Results

The sonographer performing the exam had no impact on viscoelastic parameters (P > .05). ICCs of SWS, E, G, SWA, SWD, and viscosity were, respectively, 0.89 (95% confidence intervals [CI]: 0.79-0.95), 0.81 (95% CI: 0.79-0.95), 0.90 (95% CI: 0.80-0.95), 0.96 (95% CI: 0.93-0.98), 0.78 (95% CI: 0.60-0.89), and 0.90 (95% CI: 0.80-0.95); CVs were 11.9, 23.3, 24.2, 10.1, 29.0, and 32.2%; RDCs were 33.0, 64.5, 66.9, 27.7, 80.3, and 89.2%, and Bland-Altman mean biases and 95% limits of agreement were −0.05 (−0.45, 0.35) m/s, −0.61 (−5.33, 4.10) kPa, −0.25 (−2.06, 1.56) kPa, −0.01 (−0.27, 0.26) Np/m/Hz, −0.09 (−7.09, 6.91) m/s/kHz, and −0.33 (−2.60, 1.94) Pa/s, between the two visits.

Conclusion

US-determined viscoelastography parameters can be measured with high reproducibility and consistency between two visits 2 weeks apart on the same ultrasound machine.

目的评估志愿者和活检证实的代谢功能障碍相关性脂肪性肝病(MASLD)或代谢功能障碍相关性脂肪性肝炎(MASH)患者在评估肝脏机械特性时使用的六种超声(US)测定的剪切波(SW)粘弹性参数的重现性:这项经机构审查委员会批准的前瞻性横断面研究纳入了 10 名志愿者和 20 名 MASLD 或 MASH 患者,他们接受了两次肝脏 US 弹性成像检查,每次间隔至少 2 周。根据研究用 US 扫描仪记录的射频数据计算 SW 速度 (SWS)、杨氏模量 (E)、剪切模量 (G)、SW 衰减 (SWA)、SW 弥散 (SWD) 和粘度。采用线性混合模型,将超声技师的值班情况作为混杂因素考虑。测量的再现性通过类内相关系数(ICC)、变异系数(CV)、再现性系数(RDC)和布兰-阿尔特曼分析进行评估:结果:进行检查的超声技师对粘弹性参数没有影响(P > .05)。SWS、E、G、SWA、SWD 和粘度的 ICC 分别为 0.89(95% 置信区间 [CI]:0.79-0.95)、0.81(95% CI:0.79-0.95)、0.90(95% CI:0.80-0.95)、0.96(95% CI:0.93-0.98)、0.78(95% CI:0.60-0.89)和 0.90(95% CI:0.80-0.95);CV 分别为 11.9%、23.3%、24.2%、10.1%、29.0% 和 32.2%;RDC 分别为 33.0、64.5、66.9、27.7、80.3 和 89.2%;布兰-阿尔特曼平均偏差和 95% 的一致限分别为 -0.05 (-0.45, 0.35) m/s、-0.61 (-5.33, 4.10) kPa、-0.25(-2.06,1.56)kPa、-0.01(-0.27,0.26)Np/m/Hz、-0.09(-7.09,6.91)m/s/kHz、-0.33(-2.60,1.94)Pa/s:结论:在同一台超声波机上,相隔 2 周的两次就诊可测量出 US 确定的粘弹性参数,其重复性和一致性很高。
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引用次数: 0
期刊
Journal of Ultrasound in Medicine
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