Ultrasonography最新文献_第8页

Assessment of renal stiffness in primary hyperparathyroidism using shear-wave elastography and changes after microwave ablation. 用剪切波弹性成像评价原发性甲状旁腺功能亢进症患者肾脏僵硬度及微波消融后的变化。

IF 2.5 3区医学

Ultrasonography Pub Date : 2025-11-01 Epub Date: 2025-07-28 DOI: 10.14366/usg.25104

Hüseyin Gökhan Yavaş, Mehmet Korkmaz, Furkan Ertürk Urfalı, Bünyamin Aydın, Güven Barış Cansu

{"title":"Assessment of renal stiffness in primary hyperparathyroidism using shear-wave elastography and changes after microwave ablation.","authors":"Hüseyin Gökhan Yavaş, Mehmet Korkmaz, Furkan Ertürk Urfalı, Bünyamin Aydın, Güven Barış Cansu","doi":"10.14366/usg.25104","DOIUrl":"10.14366/usg.25104","url":null,"abstract":"Purpose: The present study aimed to evaluate changes in renal stiffness in primary hyperparathyroidism (PHPT) using shear-wave elastography (SWE), and to assess treatmentrelated improvements following microwave ablation (MWA).Methods: This retrospective study included 53 PHPT patients (mean age, 56.4±10.8 years; 48 women, 5 men) and 70 healthy controls (mean age, 54.5±9.7 years; 58 women, 12 men). Baseline renal SWE values (measured in the renal cortex) and biochemical parameters (parathyroid hormone [PTH], calcium, phosphate) were compared between groups. The control group served only for baseline comparisons and was not followed longitudinally. In the patient group, posttreatment SWE and biochemical changes were assessed at 1 day, 1 month, 3 months, 6 months, and 1 year. Statistical analysis included paired and independent t-tests, while regression analysis identified predictors of renal stiffness.Results: Baseline SWE values were higher in PHPT patients than in controls (9.16±2.64 kPa vs. 5.02±0.63 kPa, P<0.01). After MWA, SWE values significantly decreased (1-year mean, 5.15±1.19 kPa; P<0.01). PTH and calcium levels also improved post-treatment (P<0.01). Regression analysis showed that PTH (β=0.02, P<0.01) and calcium (β=1.82, P=0.018) independently predicted renal stiffness.Conclusion: Reductions in renal stiffness and improvements in biochemical parameters were observed in PHPT patients following MWA. These preliminary findings suggest that SWE may have potential as a non-invasive tool for assessing and monitoring renal involvement in PHPT.","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":" ","pages":"448-457"},"PeriodicalIF":2.5,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12645074/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145330872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Modulation of cell viability, apoptosis, and autophagy in pancreatic cancer cells using therapeutic ultrasound with microbubbles and gemcitabine. 用微泡和吉西他滨治疗超声调节胰腺癌细胞的细胞活力、凋亡和自噬。

IF 2.5 3区医学

Ultrasonography Pub Date : 2025-11-01 Epub Date: 2025-07-24 DOI: 10.14366/usg.25084

Seunghyeon Roh, Jae Young Lee, Eun-Joo Park, Yuri Cheon, Yun Deok Ahn

{"title":"Modulation of cell viability, apoptosis, and autophagy in pancreatic cancer cells using therapeutic ultrasound with microbubbles and gemcitabine.","authors":"Seunghyeon Roh, Jae Young Lee, Eun-Joo Park, Yuri Cheon, Yun Deok Ahn","doi":"10.14366/usg.25084","DOIUrl":"10.14366/usg.25084","url":null,"abstract":"Purpose: This study aimed to investigate the effects of therapeutic ultrasound (TUS) combined with microbubbles and gemcitabine on cell viability, apoptosis, and autophagy in pancreatic cancer cells. The goal was to elucidate the cell death mechanisms by which TUS enhances drug delivery and therapeutic efficacy.Methods: Human pancreatic ductal adenocarcinoma CFPAC-1 cells were treated with varying TUS intensities (0.29 MPa/continuous wave, 0.42 MPa/50% duty cycle, and 0.86 MPa/10% duty cycle), microbubble volumes (0, 10, and 50 μL), and gemcitabine concentrations (0 μg/mL and 2 μg/mL). Cell viability was assessed by MTT assay, apoptosis by annexin V/propidium iodide staining and flow cytometry, and autophagy by an autophagy detection kit. Statistical analyses included three-way analysis of variance and post hoc Tukey honestly significant difference tests to evaluate the effects and interactions of treatment variables.Results: TUS combined with microbubbles and gemcitabine significantly reduced cell viability, induced apoptosis, and modulated autophagy in pancreatic cancer cells. Higher ultrasound intensities (with lower duty cycles) and increased microbubble volumes further enhanced these effects. Autophagy activation varied across treatment conditions. Under certain parameters, autophagy exhibited dose-dependent suppression with higher-intensity TUS, thereby promoting apoptosis-mediated cell death.Conclusion: TUS combined with microbubbles and gemcitabine synergistically induces cell death in pancreatic cancer cells through mechanical bioeffects and enhanced drug delivery, mediated by both apoptosis induction and autophagy modulation. These findings highlight a promising strategy for improving pancreatic cancer treatment outcomes, warranting further in vivo and clinical studies to optimize parameters and assess translational potential.","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":" ","pages":"438-447"},"PeriodicalIF":2.5,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12645070/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145187520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

How to use intestinal ultrasonography in patients with Crohn disease: its role in the assessment of disease activity and disease monitoring in the era of the treat-to-target strategy. 肠超声在克罗恩病患者中的应用：在治疗到目标策略时代对疾病活动性评估和疾病监测的作用

IF 2.5 3区医学

Ultrasonography Pub Date : 2025-09-01 Epub Date: 2025-07-08 DOI: 10.14366/usg.25079

Myung-Won You, Sung Kyoung Moon, Seong Jin Park

引用次数: 0

Ultrasonography-assisted near-infrared spectroscopy imaging enhanced by gold nanorods in a xenograft mouse model of prostate cancer. 超声辅助近红外光谱成像金纳米棒增强异种前列腺癌小鼠模型。

IF 2.5 3区医学

Ultrasonography Pub Date : 2025-09-01 Epub Date: 2025-07-08 DOI: 10.14366/usg.25072

Seungsoo Lee, Dae Chul Jung, Seung-Seob Kim, Jaemoon Yang, Yoochan Hong, Dalkwon Koh

{"title":"Ultrasonography-assisted near-infrared spectroscopy imaging enhanced by gold nanorods in a xenograft mouse model of prostate cancer.","authors":"Seungsoo Lee, Dae Chul Jung, Seung-Seob Kim, Jaemoon Yang, Yoochan Hong, Dalkwon Koh","doi":"10.14366/usg.25072","DOIUrl":"10.14366/usg.25072","url":null,"abstract":"Purpose: This study aimed to develop and evaluate a near-infrared spectroscopy (NIRS) system enhanced by gold nanorods (GNRs) for the detection of prostate cancer using phantom and xenograft mouse models.Methods: A hybrid ultrasound-NIRS (US-NIRS) system was created with a 785 nm wavelength, integrating eight laser diodes and four detectors with a linear ultrasound probe. Software for processing near-infrared (NIR) signals was developed using an engineering toolkit and an image reconstruction package. Two optical phantoms simulating prostate cancer were constructed using TiO2 for scattering effects and India ink for absorption effects, each containing a cylindrical cavity for GNRs positioned at depths of 1 cm and 2 cm. A xenograft mouse model was prepared by injecting PC-3 cells into the right flank of nude mice. PEGylated GNRs (GNR-PEG) were synthesized. US-NIRS imaging was performed on mice before and after intravenous injection of GNR-PEG.Results: Ultrasonography revealed solid, vascular tumors without necrosis or hemorrhage. Preinjection NIRS showed higher baseline NIR absorbance in tumors compared to normal tissue (optical depths: 0.26, 1.52, and 0.24 for the 1.5 cm, 1.4 cm, and 0.5 cm tumors, respectively). After GNR-PEG injection, tumor optical depths significantly increased (3.36, 4.39, and 1.69 for the 1.5 cm, 1.4 cm, and 0.5 cm tumors, respectively), peaking around 5 minutes, and subsequently decreasing towards baseline levels by 60 minutes.Conclusion: A US-NIRS hybrid imaging system enhanced by GNR-PEG demonstrated increased NIR absorption in prostate cancer xenografts. This fusion imaging technique holds potential for future clinical applications in detecting prostate cancer.","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":" ","pages":"363-371"},"PeriodicalIF":2.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12457954/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144876768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Impact of an immediate short waiting period on ultrasound-based ablative margin assessment following radiofrequency ablation for hepatocellular carcinoma. 肝细胞癌射频消融后立即短等待期对超声消融边缘评估的影响。

IF 2.5 3区医学

Ultrasonography Pub Date : 2025-09-01 Epub Date: 2025-07-01 DOI: 10.14366/usg.25055

Seungchul Han, Min Woo Lee, Kyowon Gu, Hyunchul Rhim

{"title":"Impact of an immediate short waiting period on ultrasound-based ablative margin assessment following radiofrequency ablation for hepatocellular carcinoma.","authors":"Seungchul Han, Min Woo Lee, Kyowon Gu, Hyunchul Rhim","doi":"10.14366/usg.25055","DOIUrl":"10.14366/usg.25055","url":null,"abstract":"Purpose: This study aimed to evaluate whether an immediate short waiting period after radiofrequency ablation (RFA) can improve the accuracy of ultrasound (US)-based assessment of the ablation zone in patients with hepatocellular carcinoma (HCC).Methods: A prospective cohort study was conducted involving 41 patients who underwent US-guided RFA for HCC. Tumor margin conspicuity, electrode tip visibility, and operator confidence in assessing the ablative margin were recorded immediately following electrode deactivation and at 1-minute intervals for 5 minutes. Post-ablation computed tomography was performed to confirm the sufficiency of the ablative margins. The Friedman test and post-hoc Conover analysis were used to assess changes over time.Results: Over time, significant improvements were observed in tumor margin visibility, electrode tip visualization, and operator confidence in ablative margin assessment (all P<0.001). Repositioning and additional ablation were required in 29.3% (12/41) of patients, with all achieving sufficient ablative margins. Larger tumor size was associated with decreased operator confidence (P=0.008). No major complications occurred.Conclusion: A short waiting period following RFA enhances the visibility of tumor margins and electrode tips on US, thereby increasing operator confidence in assessing ablative margin sufficiency. Implementing an immediate short waiting period may improve the accuracy of treatment.","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":" ","pages":"354-362"},"PeriodicalIF":2.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12457961/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144823207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Integration of high-frequency ultrasound with the Global Acne Grading System for prediction of treatment efficiency in acne vulgaris. 整合高频超声与全球痤疮分级系统预测寻常痤疮的治疗效果。

IF 2.5 3区医学

Ultrasonography Pub Date : 2025-09-01 Epub Date: 2025-07-24 DOI: 10.14366/usg.25077

Luqian Yang, Bing Hu, Jingyi Guo, Yimin Su, Di Sun

{"title":"Integration of high-frequency ultrasound with the Global Acne Grading System for prediction of treatment efficiency in acne vulgaris.","authors":"Luqian Yang, Bing Hu, Jingyi Guo, Yimin Su, Di Sun","doi":"10.14366/usg.25077","DOIUrl":"10.14366/usg.25077","url":null,"abstract":"Purpose: This study aimed to establish a novel acne scoring system (GAGS-HFUS) that combined the Global Acne Grading System (GAGS) with high-frequency ultrasound (HFUS), and to evaluate its predictive value for unfavorable treatment response in patients who have moderate-to-severe acne.Methods: This prospective study recruited consecutive patients with mild-to-severe acne vulgaris. The GAGS-HFUS was developed based on the HFUS-detected morphological characteristics of acne and the GAGS facial region classification. Acne severity was assessed using both ultrasonic scales (the GAGS-HFUS, Sonographic Scoring System for Acne [SSSA], and Sonographic Scoring of Acne [SOS-Acne]) and a clinical scale (the Investigator Global Assessment [IGA]). Three months of followup were conducted in a subgroup of 34 patients with moderate-to-severe acne treated with oral isotretinoin. Univariate and multivariate Poisson regression analyses were conducted to determine the predictive value of GAGS-HFUS for unfavorable treatment response in this subgroup.Results: Overall, 60 patients with mild-to-severe acne (mean age, 24 years; range, 16 to 34 years; 25 males) were enrolled. The GAGS-HFUS demonstrated substantial agreement with SOS-Acne (Spearman rank correlation coefficient [Rs], 0.864; kappa, 0.713) and IGA (Rs, 0.837; kappa, 0.660). In the follow-up cohort of 34 patients with moderate-to-severe acne, GAGS-HFUS score was identified as an independent predictor of unfavorable treatment response (risk ratio, 1.125; P=0.002). Its predictive performance (area under the receiver operating characteristic curve, 0.936; P<0.001) was superior to those of IGA and SOS-Acne.Conclusion: GAGS-HFUS is an independent predictor of unfavorable treatment response in patients with moderate-to-severe acne, underscoring its value in the strategic management of acne.","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":" ","pages":"389-399"},"PeriodicalIF":2.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12457958/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144884302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Combined application of deep learning and conventional computer vision for kidney ultrasound image classification in chronic kidney disease: preliminary study. 深度学习与传统计算机视觉在慢性肾病肾脏超声图像分类中的联合应用初探

IF 2.5 3区医学

Ultrasonography Pub Date : 2025-09-01 Epub Date: 2025-06-15 DOI: 10.14366/usg.25074

Patrick Tomas Svrcek, Junbong Jang, Connie Ge, Hajeong Lee, Young H Kim

{"title":"Combined application of deep learning and conventional computer vision for kidney ultrasound image classification in chronic kidney disease: preliminary study.","authors":"Patrick Tomas Svrcek, Junbong Jang, Connie Ge, Hajeong Lee, Young H Kim","doi":"10.14366/usg.25074","DOIUrl":"10.14366/usg.25074","url":null,"abstract":"Purpose: This study evaluates the feasibility of combining deep learning (DL) and conventional computer vision techniques to classify kidney ultrasound (US) images for the presence or absence of chronic kidney disease (CKD).Methods: A retrospective analysis was conducted on 258 kidneys (124 normal and 134 with CKD). A DL model was trained using midsagittal US images of the right kidney and corresponding contour maps to automate measurements of parenchymal thickness and parenchyma-to-sinus ratios. These features were integrated with a convolutional neural network for classification. The ground truth was determined based on clinical CKD diagnosis and laboratory data.Results: The combined DL and conventional feature extraction model achieved an accuracy of 82%, with a specificity of 93% and a negative predictive value of 97%. This approach outperformed models that relied solely on raw US images using DL, which achieved an accuracy of 64%. The inclusion of contour-based parenchymal measurements enhanced classification performance.Conclusion: The integration of DL with automated feature extraction enables accurate classification of CKD using minimal user input. This proof-of-concept study highlights the potential of combining artificial intelligence-driven analysis with traditional metrics to serve as a noninvasive adjunct for CKD diagnosis and monitoring.","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":" ","pages":"346-353"},"PeriodicalIF":2.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12457927/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144776885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Agreement of shear wave and strain elastography according to the size of the region of interest: a study of epidermal cysts. 根据感兴趣区域的大小，剪切波和应变弹性学的一致性：表皮囊肿的研究。

IF 2.5 3区医学

Ultrasonography Pub Date : 2025-09-01 Epub Date: 2025-07-20 DOI: 10.14366/usg.24222

Ji Na Kim, Hee Jin Park

{"title":"Agreement of shear wave and strain elastography according to the size of the region of interest: a study of epidermal cysts.","authors":"Ji Na Kim, Hee Jin Park","doi":"10.14366/usg.24222","DOIUrl":"10.14366/usg.24222","url":null,"abstract":"Purpose: This study aimed to evaluate the intra-observer agreement of ultrasound elastography according to region-of-interest (ROI) size in surgically confirmed epidermal cysts.Methods: This retrospective study included 201 surgically confirmed epidermal cysts that underwent two consecutive strain elastography and shear wave elastography (SWE) examinations. Circular ROIs were drawn in the lesion and adjacent fat to obtain the strain ratio, shear wave (SW) velocity, and SW elasticity. Lesions were stratified by ROI diameter into <2 mm (group 1) and ≥2 mm (group 2). For each parameter, the absolute intra-observer differences, intraclass correlation coefficients (ICCs), Bland-Altman bias, 95% limits of agreement (LoAs), and correlations with the ROI-to-lesion-diameter ratio (ROI ratio) were calculated.Results: The ICCs for SW velocity were good in group 2 and moderate in group 1, whereas the ICCs for strain ratio and SW elasticity were moderate in both groups. The mean difference in strain ratio correlated positively with the ROI ratio, but not with absolute ROI diameter, whereas mean differences in SW velocity and SW elasticity correlated negatively with both ROI diameter and ROI ratio. Group 2 demonstrated significantly smaller mean differences in SW velocity and SW elasticity than group 1 (velocity, 1.20±2.12 vs. 1.17±1.32 m/s, P=0.005; elasticity, 79.5±97.9 vs. 49.2±65.5 kPa, P=0.030). Bland-Altman analysis confirmed narrower LoAs in group 2 for all three parameters.Conclusion: An ROI diameter ≥2 mm reduced measurement differences in SWE of epidermal cysts, whereas a large ROI ratio increased measurement variability in strain ratio, supporting technique-specific ROI optimization.","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":" ","pages":"372-379"},"PeriodicalIF":2.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12457925/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144876766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Essentials for parathyroid imaging and intervention: what radiologists need to know. 甲状旁腺成像和介入的要点：放射科医生需要知道的。

IF 2.5 3区医学

Ultrasonography Pub Date : 2025-09-01 Epub Date: 2025-08-28 DOI: 10.14366/usg.25102

Hye Jeong Choi, Ji-Hoon Kim

引用次数: 0

Effect of breath control on hepatic shear wave elasticity and dispersion in pediatric patients. 呼吸控制对小儿肝横波弹性和弥散的影响。

IF 2.5 3区医学

Ultrasonography Pub Date : 2025-09-01 Epub Date: 2025-08-28 DOI: 10.14366/usg.25037

Chanyoung Rhee, Seunghyun Lee, Young Hun Choi, Jae-Yeon Hwang, Jung-Eun Cheon

{"title":"Effect of breath control on hepatic shear wave elasticity and dispersion in pediatric patients.","authors":"Chanyoung Rhee, Seunghyun Lee, Young Hun Choi, Jae-Yeon Hwang, Jung-Eun Cheon","doi":"10.14366/usg.25037","DOIUrl":"10.14366/usg.25037","url":null,"abstract":"Purpose: This study aimed to evaluate the effect of breath control on the reliability of two-dimensional shear wave elastography (2D-SWE) and shear wave dispersion (SWD) measurements in pediatric patients.Methods: This study included a retrospective cohort of 163 children and a prospective cohort of 27 children (aged 8-17 years). All participants underwent 2D-SWE and SWD under both free-breathing and breath-hold conditions between September 2021 and February 2023. The prospective cohort also underwent magnetic resonance elastography (MRE). Liver stiffness and dispersion values were compared between respiratory conditions. Inter- and intra-rater agreements were assessed, and correlations with MRE were analyzed in the prospective cohort.Results: Liver stiffness and dispersion values were significantly higher during free-breathing compared to breath-hold (mean differences: 0.22 kPa and 0.39 m/s/kHz, respectively; both P<0.01). Breath-hold improved inter-rater agreement for 2D-SWE (intraclass correlation coefficient [ICC], 0.94 vs. 0.83; P=0.005) and SWD (ICC, 0.85 vs. 0.70; P=0.048). Intra-rater agreement for 2D-SWE (ICC, 0.88 vs. 0.88; P>0.99) and SWD (ICC, 0.70 vs. 0.74; P=0.396) remained moderate to good and did not differ significantly between conditions. The correlation between 2D-SWE and MRE was stronger under breath-hold than free-breathing (r=0.73 vs. r=0.56), although this difference was not statistically significant (P=0.299).Conclusion: Breath-holding increases the reliability of pediatric 2D-SWE and SWD by improving inter-rater agreement and correlation with MRE. However, free-breathing also demonstrates comparable reproducibility with minimal bias, supporting its clinical feasibility for use in uncooperative pediatric patients.","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":"44 5","pages":"380-388"},"PeriodicalIF":2.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12457956/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145042293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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