Journal of Clinical Ultrasound最新文献

{"title":"Cardiac Echinococcosis: Rare and Challenging Presentations-A Case Series.","authors":"Deniz Delibaş, Büşra Gülnihal Soylu, Taner Yumak, Hasan Yiğit","doi":"10.1002/jcu.70290","DOIUrl":"10.1002/jcu.70290","url":null,"abstract":"<p><p>Cardiac hydatid cysts are rare manifestations of Echinococcus infection. We retrospectively reviewed five patients (4 female, 1 male, age range 26-58) managed at a single center between 2009 and 2024. Presentations were chest pain (n = 2), lumbalgia (n = 1), abdominal pain (n = 1), or asymptomatic (n = 1). Initial work-up involved X-ray or transthoracic echocardiography, but cardiac magnetic resonance confirmed diagnosis in all cases. Cysts involved both intramyocardial and epicardial layers (n = 2), the interventricular septum (n = 2), or the right atrium (n = 1). Awareness of this entity is essential in endemic regions when evaluating cardiac cystic masses.</p>","PeriodicalId":15386,"journal":{"name":"Journal of Clinical Ultrasound","volume":" ","pages":"2061-2069"},"PeriodicalIF":1.3,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148205231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultrasound Findings of Tibia Adamantinoma: A Case Report With Literature Review.","authors":"Kaifan Chen, Huifen Ye, Danyu Wang, Tong Liang, Ping Wang","doi":"10.1002/jcu.70422","DOIUrl":"https://doi.org/10.1002/jcu.70422","url":null,"abstract":"<p><p>Adamantinoma is an extremely rare and primary malignant tumor of the bones. We report the case of a 13-year-old female patient presented to our clinic for a mass on the anterior aspect of the tibia. It was thought to be a soft tissue tumor by the clinician, and therefore the patient was referred for sonography of the mass. Ultrasonography findings revealed a destructive tibial defect, and subsequently, a punch biopsy was performed under ultrasound guidance. As far as we know, this is the first detailed description of ultrasound findings in adamantinoma, including initial ultrasonography, biopsy guidance, and follow-up ultrasonography in the available literature.</p>","PeriodicalId":15386,"journal":{"name":"Journal of Clinical Ultrasound","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2026-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149110411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diagnostic Pitfalls of High-Frequency Ultrasound in Pediatric Peripheral Neurogenic Tumors: An Analysis of 44 Challenging Cases.","authors":"Tao Qi, Shen Qi, Zhou Suzhi, Ye Haipeng","doi":"10.1002/jcu.70421","DOIUrl":"https://doi.org/10.1002/jcu.70421","url":null,"abstract":"<p><strong>Objective: </strong>This study systematically analyzed misdiagnosis classification, incidence and root causes of pediatric peripheral neurogenic tumors on high-frequency ultrasound among diagnostically ambiguous cases, and summarized core diagnostic pitfalls.</p><p><strong>Methods: </strong>We retrospectively collected clinical and ultrasonographic data from 44 children with superficial soft tissue masses treated between January 2022 and June 2026. Final diagnoses were confirmed via surgical pathology, pathogenic genetic testing combined with typical multimodal imaging, or multidisciplinary consensus after a minimum 12-month clinical and MRI follow-up. Only atypical lesions with initial ultrasound suspicion of neurogenic origin were enrolled; all cases with classic definitive sonographic signs were excluded. Using final pathological or follow-up diagnosis as the gold standard, we quantified misdiagnosis proportions and categorized misdiagnosis patterns.</p><p><strong>Results: </strong>Of the 44 enrolled children, 31 (70.5%) were confirmed to have peripheral neurogenic tumors, and 13 (29.5%) carried non-neurogenic lesions. A total of 15 misdiagnoses occurred (34.1% of the cohort). Thirteen misdiagnoses represented source misjudgment, in which all non-neurogenic lesions were incorrectly categorized as neurogenic; these predominantly included five lipogenic tumors, four fibrogenic lesions, and four other miscellaneous soft tissue masses. Two misdiagnoses were subtype misjudgments of confirmed neurogenic tumors (6.5% of all neurogenic cases). Importantly, this cohort only included atypical confusing lesions without classic imaging features; the 0% specificity of the combined ultrasound criteria only reflects ultrasound performance in difficult cases and cannot be extended to routine pediatric superficial masses. The rat-tail sign yielded 100% specificity (95% confidence interval (CI): 75.3%-100%) and 100% positive predictive value (95% CI: 73.5%-100%) for identifying neurogenic lesions, while its sensitivity was only 38.7% (12/31; 95% CI: 21.8%-57.8%).</p><p><strong>Conclusions: </strong>The rat-tail sign achieves 100% specificity and positive predictive value for neurogenic lesions within this atypical cohort, yet shows only 38.7% sensitivity. Major pitfalls include pseudo-rat-tail artifacts and mimicking lesions. Integrating patient age, growth velocity, and dynamic multiplanar tracing into a standardized stepwise workflow can reduce false-positive misdiagnoses in daily practice.</p>","PeriodicalId":15386,"journal":{"name":"Journal of Clinical Ultrasound","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2026-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149080939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fetal Structural Anomalies and Vasa Previa Newly Identified After an Unremarkable Mid-Trimester Systematic Ultrasound Screening: Clinical Significance and Follow-Up Findings in 47 Cases.","authors":"Yun Hong, Bozheng Li, Li Ling, Lan Zhang","doi":"10.1002/jcu.70424","DOIUrl":"https://doi.org/10.1002/jcu.70424","url":null,"abstract":"<p><strong>Background: </strong>Some fetal structural anomalies and cases of vasa previa may not be detectable until after mid-trimester ultrasound screening. This study evaluated the spectrum, sonographic features, and perinatal outcomes of these newly detected abnormalities.</p><p><strong>Methods: </strong>We retrospectively reviewed 14 579 singleton pregnancies that underwent standardized mid-trimester ultrasound screening with no structural abnormalities detected at that time. Among these, 47 fetuses had anomalies newly identified before delivery. One additional pregnancy, in which multiple malformations were already detected at mid-trimester screening, was encountered during the same period. Because this case did not meet the inclusion criterion of an unremarkable mid-trimester scan, it was not included in the primary cohort and is described separately.</p><p><strong>Results: </strong>The detection proportion was 3.22 per 1000 pregnancies (47). Digestive and hepatobiliary anomalies accounted for 25.5% (12), followed by central nervous system anomalies 23.4% (11). Vasa previa was diagnosed in three pregnancies 6.4% (3). A total of 14 pregnancies were terminated. Four live-born infants died during the neonatal period; 21.3% (10) underwent surgery. A total of 8 of 10 surgically treated infants survived to hospital discharge. The overall survival to discharge was 61.7% (29).</p><p><strong>Conclusions: </strong>Supplementary ultrasound after mid-trimester screening can identify additional fetal structural anomalies and vasa previa and may inform prenatal counseling, delivery planning, and neonatal management.</p>","PeriodicalId":15386,"journal":{"name":"Journal of Clinical Ultrasound","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2026-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149080958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Clinical and Ultrasound Characteristics of High-Grade Endometrial Stromal Sarcoma.","authors":"Fei Chen, Lan Bu, Fang Nie","doi":"10.1002/jcu.70414","DOIUrl":"https://doi.org/10.1002/jcu.70414","url":null,"abstract":"<p><strong>Objectives: </strong>To investigate the clinical features, ultrasound manifestations and diagnostic value of high-grade endometrial stromal sarcoma (HGESS), analyze their correlation with pathological findings, and provide evidence for preoperative diagnosis, differential diagnosis and prognostic evaluation.</p><p><strong>Methods: </strong>A total of 36 patients with surgico-pathologically confirmed HGESS (2023-2026) were retrospectively enrolled. Control groups included 28 low-grade endometrial stromal sarcoma (LGESS) and 30 uterine leiomyosarcoma (ULMS). This retrospective singlecenter study followed the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) reporting checklist. Clinical, ultrasound, and pathological data were collected. Multivariate logistic regression with bootstrap internal validation, Receiver-operating characteristic (ROC) curves, Kappa test, Spearman's correlation, Kaplan-Meier survival analysis, and Log-rank test were performed. We acknowledged the potential overfitting risk for regression analysis given the limited sample size.</p><p><strong>Results: </strong>The predominant symptoms of HGESS were irregular vaginal bleeding and lower abdominal distension and pain, with markedly shorter disease course than LGESS (p < 0.001). Serum LDH, CA125, and HE4 were significantly elevated in HGESS versus control groups (all p < 0.001). Typical ultrasound findings included ill-defined borders, heterogeneous hypoechogenicity, frequent internal necrosis and cystic degeneration, predominant Grade III blood flow and decreased resistance index (RI) (all p < 0.001). Multivariate logistic regression identified ill-defined borders, heterogeneous internal echo, Grade III blood flow and elevated LDH as independent risk factors for HGESS. Bootstrap internal validation supported model stability. The combined ultrasound-tumor-marker model yielded the area under the curve (AUC) = 0.918, sensitivity = 100%, specificity = 74.1%. Caution should be exercised interpreting this high diagnostic performance given singlecenter retrospective design and sample-size limitation. Lesion maximum diameter (r = 0.621, p < 0.001) and blood-flow abundance (r = 0.584, p < 0.001) positively correlated with the degree of histological malignancy. Shorter progression-free survival (PFS) was observed for patients with lesion > 5 cm (p < 0.001), RI < 0.40 (p = 0.003), and lymph-node metastasis (p < 0.001) in Log-rank tests.</p><p><strong>Conclusions: </strong>HGESS is highly malignant with rapid progression and characteristic ultrasound signs. Combined ultrasound and tumor-markers improve preoperative differential diagnosis. Ultrasound parameters provide prognostic clues for HGESS.</p>","PeriodicalId":15386,"journal":{"name":"Journal of Clinical Ultrasound","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2026-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149080978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultrasonographic Features of the Kidney in Patients With Frasier Syndrome and Stage 5 Chronic Kidney Disease: A Case Report and Literature Review.","authors":"Wei Geng, Xiaolu Li, Yujie Xie, Jiarui Liu, Mengmeng Yan, Yuchen Li, Chunping Ning","doi":"10.1002/jcu.70400","DOIUrl":"https://doi.org/10.1002/jcu.70400","url":null,"abstract":"<p><strong>Background: </strong>Frasier syndrome (FS) is a rare WT1-related disorder characterized by progressive nephropathy and diffuse renal parenchymal damage on imaging. Ultrasonographic findings of end-stage kidney disease in FS have rarely been documented.</p><p><strong>Methods: </strong>We present the case of a 12-year-old boy who was diagnosed with FS, harbored a heterozygous c.1447+5G>A mutation in his WT1 gene, and developed CKD Stage 5. Renal ultrasonography and non-contrast CT were performed. A systematic literature review was conducted to contextualize the imaging findings.</p><p><strong>Results: </strong>Non-contrast CT revealed multiple areas of abnormal density in both kidneys, which raised suspicion of Wilms tumor. Ultrasonography demonstrated multiple avascular, non-encapsulated nodular hyperechoic areas on a background of diffusely abnormal parenchyma and ruled out malignant tumors. The literature review confirmed that similar findings have rarely been reported in FS patients with CKD Stage 5.</p><p><strong>Conclusion: </strong>These findings describe a distinctive end-stage renal ultrasound pattern in FS. Recognition of this pattern may help clinicians avoid unnecessary invasive procedures when renal malignancy is suspected in patients with advanced CKD.</p>","PeriodicalId":15386,"journal":{"name":"Journal of Clinical Ultrasound","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149069202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recurrence and Metastasis of Uterine Myxoid Leiomyosarcoma After Surgery: A Case Report.","authors":"Fei Chen, Lan Bu, Fang Nie","doi":"10.1002/jcu.70412","DOIUrl":"https://doi.org/10.1002/jcu.70412","url":null,"abstract":"<p><p>Myxoid leiomyosarcoma (MLMS) is a rare subtype of uterine leiomyosarcoma, usually occurring in perimenopausal women. We report a 24-year-old female with postoperative recurrence and unusual subcutaneous metastasis of uterine MLMS. Four years prior, she underwent laparoscopic myomectomy for progressive dysmenorrhea, with pathology confirming MLMS. She was admitted for the 6th cycle of adjuvant chemotherapy with gemcitabine plus docetaxel, and imaging examinations suggested MLMS recurrence, followed by laparoscopic total hysterectomy with bilateral salpingo-oophorectomy (pathology confirmed recurrence). Eight months postoperatively, a right lower abdominal subcutaneous mass was found, and biopsy confirmed MLMS metastasis. This case highlights the rarity of MLMS in young women and its atypical subcutaneous metastasis, emphasizing the need for enhanced postoperative surface surveillance to facilitate early detection of recurrence and metastasis.</p>","PeriodicalId":15386,"journal":{"name":"Journal of Clinical Ultrasound","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149074565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultrasonographic Diagnosis of Acute Gallbladder Torsion in a Child: A Case Report.","authors":"Ruirui Zhang, Miao Shi, Xin Li","doi":"10.1002/jcu.70418","DOIUrl":"https://doi.org/10.1002/jcu.70418","url":null,"abstract":"<p><p>Gallbladder torsion is an extremely rare condition in the pediatric population. A 32-month-old boy presented with paroxysmal abdominal pain and vomiting. An initial dedicated intestinal ultrasonography yielded false-negative results, and conservative treatment failed to relieve symptoms. Repeat examinations revealed elevated inflammatory markers; extended abdominal ultrasonography identified an enlarged and twisted gallbladder with wall thickening and absent mural vascularity. Emergency surgery confirmed 360° gallbladder torsion with ischemic necrosis, and laparoscopic cholecystectomy was performed successfully. Notably, this case represents one of the few reported instances of gallbladder torsion in children under 3 years of age with an initial false-negative ultrasound examination, highlighting critical diagnostic pitfalls in pediatric acute abdomen. This report underscores the value of ultrasonography in the early diagnosis of pediatric gallbladder torsion through recognition of typical imaging signs and proactive extended scanning when clinical deterioration occurs.</p>","PeriodicalId":15386,"journal":{"name":"Journal of Clinical Ultrasound","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2026-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149069023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Case of Deep Infiltrating Endometriosis Undergoing Malignant Transformation to Müllerian Adenosarcoma: Case Report and Literature Review.","authors":"Su Qiaobin, Lin Liling, Jiang Wanyi, Guo Lianghua","doi":"10.1002/jcu.70398","DOIUrl":"https://doi.org/10.1002/jcu.70398","url":null,"abstract":"<p><p>Müllerian adenosarcoma (MA) is a rare malignant tumor of the female reproductive system. Owing to the limited number of clinical cases and the absence of characteristic clinical manifestations, its clinical course remains poorly defined, resulting in ongoing uncertainties regarding the diagnosis and management of this disease. Herein, we report a case of pelvic MA confirmed by surgical and pathological evaluation at our institution. Clinical data of the patient were collected and, in conjunction with a literature review, the two-dimensional and color Doppler ultrasonographic features are summarized, with the aim of enhancing recognition of this disease and improving diagnostic accuracy. This case report presents a 37-year-old female with a left adnexal cystic mass, previously diagnosed with endometriosis, illustrating the potential malignant transformation into MA, a rare tumor arising from Müllerian ducts. The clinical manifestations of MA are often nonspecific, complicating diagnosis and potentially delaying treatment. This case emphasizes the need for heightened vigilance in patients with endometriosis, especially those exhibiting atypical symptoms or elevated tumor markers such as CA125. The relationship between chronic inflammation, hormonal influences, and neoplastic progression underscores the importance of continuous monitoring and a multidisciplinary approach that integrates clinical history, imaging studies, and laboratory findings. The rarity of MA and its overlapping imaging characteristics with other gynecological conditions further complicate its identification, necessitating further research to establish standardized diagnostic and management protocols. This report not only adds to the limited literature on MA but also serves as a critical reminder of the malignant potential associated with endometriosis, advocating for improved awareness and early intervention strategies to enhance patient outcomes in this vulnerable population.</p>","PeriodicalId":15386,"journal":{"name":"Journal of Clinical Ultrasound","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2026-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149069028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Point-Of-Care Ultrasound for the Assessment of the Cerebroplacental Ratio in Near-Term Pregnancies: An Agreement Study With Conventional Ultrasound.","authors":"Ilenia Mappa, Paola Metastasio, Martina Derme, Giuseppe Maria Maruotti, Francesco D'Antonio, Giuseppe Rizzo","doi":"10.1002/jcu.70415","DOIUrl":"10.1002/jcu.70415","url":null,"abstract":"&lt;p&gt;&lt;strong&gt;Objectives: &lt;/strong&gt;The cerebroplacental ratio (CPR) is associated with perinatal mortality and morbidity, and its measurement has been proposed in uncomplicated pregnancies near term to identify fetuses at risk of adverse outcome. A major limitation to its widespread adoption is the lack of ultrasound equipment dedicated to antepartum clinics. Point-of-care ultrasound (POCUS) has emerged as an affordable bedside tool that may overcome this limitation, but no comparative studies between POCUS and conventional ultrasound systems have been conducted for the evaluation of CPR. Our aim was to assess the level of agreement between these two devices in the evaluation of CPR.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Methods: &lt;/strong&gt;In a prospective cross-sectional study we examined singleton pregnancies between 36 and 38 weeks of gestation. In half of the participants the acquisition was repeated a second time by the same operator on the same device in order to quantify intra-observer reproducibility. Two observers performed Doppler recordings in a randomized sequence, each blinded to the other's results, one using a handheld ultrasound device (POCUS; Q7, Esaote, Genoa, Italy) and the other a conventional ultrasound system (MyLab Omega, Esaote, Genoa, Italy). Doppler waveforms were acquired in the absence of fetal movements and during maternal apnoea. The umbilical artery pulsatility index (UA PI) and the middle cerebral artery PI (MCA PI) were measured and the CPR was calculated as MCA PI/UA PI. A third obstetrician, blinded to the device and to the operator, assessed the quality of the recordings, assigning a score from 0 to 3 for both image quality (IQS) and measurement quality (MQS). Agreement was quantified with the intraclass correlation coefficient (ICC) and the Bland-Altman method.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Results: &lt;/strong&gt;Eighty women participated in the study. Mean values did not differ between conventional ultrasound and POCUS for UA PI (1.04 ± 0.17 vs. 1.04 ± 0.20, p = 0.760), MCA PI (1.63 ± 0.22 vs. 1.65 ± 0.26, p = 0.113) or CPR (1.61 ± 0.34 vs. 1.65 ± 0.42, p = 0.137). The ICC between the two devices was 0.89 (95% CI 0.83-0.93) for UA PI, 0.85 (95% CI 0.78-0.90) for MCA PI and 0.84 (95% CI 0.77-0.90) for CPR. Bland-Altman analysis showed a negligible bias, with limits of agreement ranging from -0.45 to +0.38 for the CPR. Intra-observer reproducibility, assessed on two consecutive recordings in 40 of these women, yielded an ICC of 0.90 (95% CI 0.82-0.95) for UA PI, 0.85 (95% CI 0.73-0.92) for MCA PI and 0.85 (95% CI 0.74-0.92) for CPR, with no difference in within-subject variability between the two devices. There were no significant differences between conventional ultrasound and POCUS in IQS for UA PI (2.45 vs. 2.52, p = 0.343) or MCA PI (2.41 vs. 2.30, p = 0.214), nor in MQS for UA PI (2.42 vs. 2.36, p = 0.466) or MCA PI (2.42 vs. 2.23, p = 0.083).&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Conclusions: &lt;/strong&gt;POCUS and conventional ultrasound showed good agreement in the evaluation of","PeriodicalId":15386,"journal":{"name":"Journal of Clinical Ultrasound","volume":" ","pages":""},"PeriodicalIF":1.3,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149038603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}