Medical ultrasonography最新文献

{"title":"Can early diaphragm dysfunction in critically ill ventilated patients predict clinical outcomes? A pilot study.","authors":"Virgílio Dias Silva, Catarina Pação, Diana Buendía Palacios, Mariana Alves, João Santos Silva, Gustavo Nobre de Jesus","doi":"10.11152/mu-4465","DOIUrl":"10.11152/mu-4465","url":null,"abstract":"<p><strong>Aim: </strong>Diaphragm dysfunction (DD) is a keystone factor in difficult weaning from invasive mechanical ventilation (IMV). Diaphragm ultrasound (DUS) is the preferred method for the evaluation of diaphragm function in the Intensive Care Unit (ICU) setting, namely through the diaphragm thickening fraction (DTF). However, its potential role in the decision-making process of mechanical ventilation weaning is yet to be established. We aimed to assess the incidence of early DD and its role as a predictor of prolonged IMV.</p><p><strong>Material and methods: </strong>We conducted a prospective, non-interventional study in a university hospital ICU. Non-consecutive adult patients subject to at least 48h of IMV were enrolled. Exclusion criteria was a prior period of IMV in the past three months. DUS was performed at 48h of IMV. End-inspiratory and end-expiratory diaphragm thickness were measured using M-mode, with a high-frequency linear probe placed at the zone of apposition of the diaphragm. The mean values of three measurements were used to calculate DTF. Interobserver measurement variability was not evaluated.</p><p><strong>Results: </strong>Forty-five patients were included. Thirty-eight percent were female, average age was 62.3 years. Mean Simplified Acute Physiology Score (SAPS) II and Sequential Organ Failure Assessment (SOFA) at admission were 50.9 and 9.02, respectively. Mean DTF was 23.46%±17.15. Average IMV duration was 9.36±7.66 days. Half of patients had DD at 48h of IMV. A weak negative correlation was observed between DTF, days of endotracheal intubation (Sp -0.27; p=0.07) and days of IMV (Sp -0.25; p=0.09). Using DTF cut-off values of 20% and 30%, DTF at 48h of IMV was not associated with prolonged IMV (p-values 0.17 and 0.58, respectively).</p><p><strong>Conclusion: </strong>In our study, there was a high prevalence of DD at 48h of IMV, as suggested in previous literature. Diaphragm dysfunction at 48h when measured through DTF did not seem to predict prolonged IMV. Late VAP incidence was associated with DD. Diaphragm ultrasound is well-established for diaphragm functional assessment, but further research regarding its trajectory during critical illness is needed to clarify its application in clinical practice.</p>","PeriodicalId":94138,"journal":{"name":"Medical ultrasonography","volume":" ","pages":"143-148"},"PeriodicalIF":0.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142869809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Humerus-acromion angle model: a novel dynamic ultrasound technique for assessing shoulder mobility in adhesive capsulitis.","authors":"Ke-Vin Chang, Wei-Ting Wu, Yi-Chung Shu, Che-Yu Lin, Levent Özçakar","doi":"10.11152/mu-4516","DOIUrl":"https://doi.org/10.11152/mu-4516","url":null,"abstract":"","PeriodicalId":94138,"journal":{"name":"Medical ultrasonography","volume":"27 2","pages":"246-247"},"PeriodicalIF":0.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144311133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultrasound of the spleen - an update on measurements, reference values, and influencing factors. A systematic review.","authors":"Claudia Lucius, Jennifer Meier, Anna Gschmack, Constantinos Zervides, Christian Jenssen, Yi Dong, Ole Graumann, Marieke Petry, Christoph F Dietrich","doi":"10.11152/mu-4436","DOIUrl":"10.11152/mu-4436","url":null,"abstract":"<p><p>Reliable and reproducible measurement methods have been established, and reference values are used in almost all scientific disciplines. The knowledge of reference values is crucial to distinguish physiological from pathological processes and, therefore, subsequently, for the clinical management of patients. The image storage and documentation of measurements and normal findings should be part of quality assurance in imaging. This paper aims to review published literature and provide current knowledge of sonographic measurements of the spleen, examination techniques, and knowledge of normal values with their possible clinical implications. Moreover, the role of clinical influencing factors such as age, gender, or ethnicity is also analyzed.</p>","PeriodicalId":94138,"journal":{"name":"Medical ultrasonography","volume":" ","pages":"185-194"},"PeriodicalIF":0.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142484570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Is there a sonographer effect? Sonographer as a source of variability for Shear Wave Elastography.","authors":"Elleen Kim, Ghada Issa, Alyssa Berube, Wendy J Smith, Alison B Chambers, Erika D Petrin, Michael D Beland, Grayson L Baird","doi":"10.11152/mu-4521","DOIUrl":"https://doi.org/10.11152/mu-4521","url":null,"abstract":"<p><strong>Aims: </strong>This study aims to estimate the degree of sonographers as a source of systematic variance for Shear Wave Elastography (SWE) values.</p><p><strong>Materials and methods: </strong>Two studies estimated variance in SWE measurements: 1) within-subjects and between-sonographer differences, and 2) between-sonographer differences alone. Both used a block design with six trained sonographers scanning six healthy liver volunteers using the same machine. Following training, each sonographer obtained ten SWE measurements from the right liver lobe for each volunteer per manufacturer guidelines.</p><p><strong>Results: </strong>When patients were scanned on different days, intraclass correlation coefficient (ICC)=0.23 was achieved, and when scanned on the same day, ICC=0.83, indicating that 17% of the variability was due to differences between sonographers. This 17% inter-sonographer variability translated into statistical and potentially clinically significant differences between sonographers-one sonographer had a SWE value of (4.99) and another (5.43), p<0.01, almost passing a clinical threshold.</p><p><strong>Conclusion: </strong>SWE values are influenced by a sonographer effect, highlighting the need to standardize protocols to minimize systematic variability between sonographers. Multiple scans are justified for patients with SWE values near clinical thresholds. Since healthy volunteers exceeded the manufacturer-defined threshold, inherent variability between sonographers could challenge the reliability of clinical thresholds in practice.</p>","PeriodicalId":94138,"journal":{"name":"Medical ultrasonography","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144311127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Factors influencing treatment outcomes of ultrasound-guided pulsed radiofrequency in chronic sacroiliac joint pain: a 6-month follow-up study.","authors":"Ümit Akkemik, Meryem Onay, Mehmet Sacit Güleç","doi":"10.11152/mu-4522","DOIUrl":"https://doi.org/10.11152/mu-4522","url":null,"abstract":"<p><strong>Aim: </strong>To evaluate the effect of ultrasound-guided pulsed radiofrequency applied to the L5 dorsal ramus and the lateral branches of the posterior primary rami at S1-3 for chronic sacroiliac joint pain and identify factors associated with treatment success.</p><p><strong>Material and methods: </strong>This retrospective study included 58 patients with chronic sacroiliac joint pain who underwent ultrasound-guided pulsed radiofrequency treatment after failing conservative management. Treatment success was defined as ≥50% improvement in the NRS score at the 6-month follow-up. Demographic, clinical, and procedural factors were analyzed.</p><p><strong>Results: </strong>The successful treatment group (n=26, 44.8%) showed significant reduction in median NRS pain scores from 7.00 to 2.00 (p<0.001) and marked improvement in ODI functional scores. Factors significantly associated with success included younger age (p=0.02), lower BMI (p<0.001), shorter symptom duration (p<0.001), nonsmoking status (p<0.001), and absence of previous spinal (p=0.03) or hip surgery (p=0.04). Early response to treatment was predictive of long-term success.</p><p><strong>Conclusion: </strong>Ultrasound-guided pulsed radiofrequency treatment provided significant pain reduction in approximately half of the patients with chronic sacroiliac joint pain at 6-month follow-up. Identified predictive factors may improve patient selection and treatment outcomes.</p>","PeriodicalId":94138,"journal":{"name":"Medical ultrasonography","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144311125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultrasonographic characteristics of BI-RADS category 4 breast lesions in males.","authors":"Suting Zong, Ruifang Xu, Yujiang Liu","doi":"10.11152/mu-4510","DOIUrl":"https://doi.org/10.11152/mu-4510","url":null,"abstract":"<p><strong>Aim: </strong>To evaluate the ultrasonographic features of male breast nodules classified as Breast Imaging Reporting and Data System category 4.</p><p><strong>Material and methods: </strong>A retrospective analysis of 79 breast nodules from 77 male patients, classified as Breast Imaging Reporting and Data System category 4 after ultrasonography, was conducted. The ultrasonographic features of benign and malignant nodules were evaluated and compared. Independent risk factors for malignancy were identified by logistic regression analysis. In addition, we conducted a subgroup analysis comparing the ultrasonographic features of gynecomastia and malignant nodules in male breasts.</p><p><strong>Results: </strong>Differences were found in age of onset, calcifications, aspect ratio greater than 1/2, Adler grading of blood flow, and axillary lymph nodes. The presence of calcifications was an independent risk factor for malignancy in males. The results of the comparison between gynecomastia and breast cancer were essentially consistent with the former. However, the differences in calcifications were not as significant as those observed in the former.</p><p><strong>Conclusions: </strong>We identified differences in age of onset, calcification, aspect ratio greater than 1/2, blood flow, and axillary lymph nodes between benign and malignant male breast nodules classified as Breast Imaging Reporting and Data System category 4, with calcification being an independent risk factor for malignancy. These features can help determine the nature of the nodules and guide biopsy decisions.</p>","PeriodicalId":94138,"journal":{"name":"Medical ultrasonography","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144035184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comments on EFSUMB recommendations, the role of ultrasound in benign skin lesions.","authors":"Diana Crisan, Alexandru Badea, Sorina Danescu, Karin Scharffetter-Kochanek, Radu Badea, Christoph F Dietrich, Maria Crisan","doi":"10.11152/mu-4508","DOIUrl":"https://doi.org/10.11152/mu-4508","url":null,"abstract":"<p><p>The European Federation of Societies for Ultrasound in Medicine and Biology (EFSUMB) has been publishing guidelines, position papers and also technical reviews. In addition, comments have been published for illustration of such papers including recently the role of ultrasound in cutaneous neoplasms but also in the hepatobiliary system, pancreas, lung and other organs. In the current paper, we aim to summarize the typical sonographic findings of the most commonly benign cutaneous lesions.</p>","PeriodicalId":94138,"journal":{"name":"Medical ultrasonography","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144059197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of an ultrasound-guided catheter-over-needle technique on the incidence of intravascular injection during caudal epidural injections: a prospective, randomized clinical trial.","authors":"Byeongcheol Lee, Daeseok Oh","doi":"10.11152/mu-4507","DOIUrl":"https://doi.org/10.11152/mu-4507","url":null,"abstract":"<p><strong>Aim: </strong>Caudal epidural injection is used for lumbosacral radicular pain but there is a risk of vascular injection. An ultrasound-guided catheter-over-needle technique was proposed to reduce this risk. This study compared the incidence of vascular injections between the catheter-over-needle and Tuohy needle methods for caudal epidural injections.</p><p><strong>Material and methods: </strong> This prospective, randomized clinical trial included patients aged ≥19 years with degenerative lumbar disease accompanied by radicular pain who were unresponsive to non-invasive treatments and scheduled for caudal epidural injection. The participants were randomized into two groups: catheter-over-needle and Tuohy needle groups. Under ultrasound guidance, the contrast medium was injected and observed in real time using fluoroscopy. An independent physician assessed the vascular injection rates.</p><p><strong>Results: </strong>The incidence of vascular injection was significantly lower in the catheter-over-needle group (15.7%) than in the Tuohy needle group (37.5%; p=0.014). Chronic pain lasting >12 months was a significant risk factor for vascular injection (p=0.035). However, no statistically significant association was found between sacral opening depth and vascular injection, although the sacral opening depth was shorter in patients who received intravascular injections.</p><p><strong>Conclusions: </strong>The catheter-over-needle technique significantly reduces the risk of vascular injection. The depth of the sacral opening may also influence vascular injection.</p>","PeriodicalId":94138,"journal":{"name":"Medical ultrasonography","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144061253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sulcus measurement by high frequency ultrasound imaging ex-vivo: an exploratory study.","authors":"Alexis Delpierre, Baptiste Ait Slimane, Laurent Estrade, Juliette Manget, Samuel Callé, Franck Levassort, Frédéric Denis, Gaël Y Rochefort, Matthieu Renaud","doi":"10.11152/mu-4506","DOIUrl":"https://doi.org/10.11152/mu-4506","url":null,"abstract":"<p><strong>Aim: </strong>The aim of this study was to compare the measurement of periodontal pocket by ultrasound in comparison with gold standard measurements ex-vivo.</p><p><strong>Material and methods: </strong>A total of 12 hemi-jaws were included in the study. Ultrasound measurements of the sulcus were performed and then, sulcus depth was measured by manual probing. The reading of the ultrasound images was carried using ImageJ software. Reference points are made allowing the measurement of this sulcular space. To assess the hypothesis of normality of the data, a Kolmogorov-Smirnov test was performed for each of the samples due to the size of their population (>50). To complete this test, Lin's concordance test was also applied.</p><p><strong>Results: </strong>A total of 348 manual probing and 348 ultrasound imagines measurements were performed. The Lin concordance and correlation coefficients and their 95% confidence intervals obtained were 0.855 (95% CI [0.822; 0.855]). These data allow us to demonstrate the equivalence between the measurement of the depth of the periodontal pocket by ultrasound imaging and the measurement by manual probing.</p><p><strong>Conclusion: </strong>This study shows that the use of an ultrasound probe for periodontal imaging was comparable to the current gold standard for measuring the sulcus area. These promising results must be confirmed by measurements in humans.</p>","PeriodicalId":94138,"journal":{"name":"Medical ultrasonography","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144059473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A machine learning model based on high-frequency ultrasound for differentiating benign and malignant skin tumors.","authors":"Yishuo Qin, Zhirou Zhang, Xiaomeng Qu, Weijie Liu, Yumei Yan, Yanli Huang","doi":"10.11152/mu-4504","DOIUrl":"https://doi.org/10.11152/mu-4504","url":null,"abstract":"<p><strong>Aim: </strong>This study aims to explore the potential of machine learning as a non-invasive automated tool for skin tumor differentiation.</p><p><strong>Material and methods: </strong>Data were included from 156 lesions, collected retrospectively from September 2021 to February 2024. Univariate and multivariate analyses of traditional clinical features were performed to establish a logistic regression model. Ultrasound-based radiomics features are extracted from grayscale images after delineating regions of interest (ROIs). Independent samples t-tests, Mann-Whitney U tests, and Least Absolute Shrinkage and Selection Operator (LASSO) regression were employed to select ultrasound-based radiomics features. Subsequently, five machine learning methods were used to construct radiomics models based on the selected features. Model performance was evaluated using receiver operating characteristic (ROC) curves and the Delong test.</p><p><strong>Results: </strong>Age, poorly defined margins, and irregular shape were identified as independent risk factors for malignant skin tumors. The multilayer perception (MLP) model achieved the best performance, with area under the curve (AUC) values of 0.963 and 0.912, respectively. The results of DeLong's test revealed a statistically significant discrepancy in efficacy between the MLP and clinical models (Z=2.611, p=0.009).</p><p><strong>Conclusion: </strong>Machine learning based skin tumor models may serve as a potential non-invasive method to improve diagnostic efficiency.</p>","PeriodicalId":94138,"journal":{"name":"Medical ultrasonography","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144002249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}