Ultrasonography最新文献

{"title":"Visualizing the lymphatic vessels and flow with high-resolution ultrasonography and microvascular flow imaging.","authors":"Joep J J Vullings,&nbsp;Caroline van Schaik,&nbsp;Jurgen J Fütterer,&nbsp;Chris L de Korte,&nbsp;Willemijn M Klein","doi":"10.14366/usg.22218","DOIUrl":"https://doi.org/10.14366/usg.22218","url":null,"abstract":"<p><p>Imaging of the lymphatic system has always encountered difficulties, such as high costs, timeconsuming procedures, and low-resolution images. Each method of imaging provides its own challenges. The use of high-resolution ultrasonography (HR-US) and microvascular flow imaging (MVFI) may prove to be the most effective method for visualizing the superficial lymphatic vessels. This study investigated the utilization of HR-US and MVFI in imaging inguinal lymph nodes and vessels, as well as the innovative use of an intranodal saline injection that acted as a contrast agent. This technical note aims to demonstrate that HR-US and MVFI, in combination with an intranodal saline injection, are applicable to the dynamic imaging of superficial inguinal lymph nodes and vessels.</p>","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":"42 3","pages":"466-473"},"PeriodicalIF":3.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/42/73/usg-22218.PMC10331061.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10146512","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}

{"title":"Radiofrequency ablation of benign thyroid nodules: the value of anterolateral hydrodissection.","authors":"So Yeong Jeong,&nbsp;Jung Hwan Baek,&nbsp;Sae Rom Chung,&nbsp;Young Jun Choi,&nbsp;Ki-Wook Chung,&nbsp;Tae Yong Kim,&nbsp;Jeong Hyun Lee","doi":"10.14366/usg.23017","DOIUrl":"https://doi.org/10.14366/usg.23017","url":null,"abstract":"<p><strong>Purpose: </strong>This study aimed to evaluate the technical feasibility, efficacy, and safety of anterolateral hydrodissection (ALHD) in radiofrequency ablation (RFA) for benign thyroid nodules.</p><p><strong>Methods: </strong>Between November 2019 and April 2020, 39 patients underwent 41 sessions of RFA with the ALHD technique to treat benign thyroid nodules. ALHD was performed with cold (0°C-4°C) 5% dextrose solution during RFA to minimize pain and secure sufficient safety margins from critical neck structures. The initial ablation ratio (IAR) was measured to assess the technique's efficiency. Ultrasound examinations, symptoms, and cosmetic scores were evaluated pre-procedure and at 6 and 12 months post-procedure. Procedure-related pain during RFA and complications were recorded.</p><p><strong>Results: </strong>The mean index nodule volume was 20.5±21.6 mL. ALHD was technically feasible in all patients. The mean IAR was 90.7%±8.3%, and significant reductions in mean nodule volume were noted at 6- and 12-month follow-ups (P<0.001, 63.9%±19.0%, and 76.3%±18.9%, respectively). Symptom and cosmetic scores showed significant improvements at 6- and 12-month follow-ups (P<0.001). Pain during the procedure was well-controlled with ALHD in all patients. After the initial use of 5-10 mL of lidocaine at the start of the procedure, no further lidocaine injection was given to any patient. Transient voice change was observed in one patient, but the patient recovered spontaneously within 30 minutes.</p><p><strong>Conclusion: </strong>The ALHD technique was technically feasible and effective in all patients, achieving a mean IAR of 90.7%. The ALHD technique also had a pain-relieving effect, resulting in only low amounts of lidocaine administration being required during the procedure.</p>","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":"42 3","pages":"432-439"},"PeriodicalIF":3.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/c0/63/usg-23017.PMC10331056.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9825986","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}

{"title":"Nerve entrapment syndromes: detection by ultrasound.","authors":"Christoph Schwabl,&nbsp;Gernot Schmidle,&nbsp;Peter Kaiser,&nbsp;Elena Drakonaki,&nbsp;Mihra S Taljanovic,&nbsp;Andrea S Klauser","doi":"10.14366/usg.22186","DOIUrl":"https://doi.org/10.14366/usg.22186","url":null,"abstract":"<p><p>Nerve entrapment syndromes are commonly encountered in clinical practice. Accurate diagnosis and management require a knowledge of peripheral neuroanatomy and the recognition of key clinical symptoms and findings. Nerve entrapment syndromes are frequently associated with structural abnormalities of the affected nerve. Therefore, imaging allows the evaluation of the cause, severity, and etiology of the entrapment. High-resolution ultrasonography can depict early and chronic morphological changes within the entire nerve course and is therefore an ideal modality for diagnosing various nerve entrapment syndromes in different regions. This review article presents some of the most common types of nerve entrapment, with special focus on ultrasound imaging and key findings.</p>","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":"42 3","pages":"376-387"},"PeriodicalIF":3.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/33/57/usg-22186.PMC10331057.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10147028","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}

{"title":"Toward acquisition protocol standardization for estimating liver fat content using ultrasound attenuation coefficient imaging.","authors":"Giovanna Ferraioli,&nbsp;Ambra Raimondi,&nbsp;Annalisa De Silvestri,&nbsp;Carlo Filice,&nbsp;Richard G Barr","doi":"10.14366/usg.23014","DOIUrl":"https://doi.org/10.14366/usg.23014","url":null,"abstract":"<p><strong>Purpose: </strong>This study's primary aim was to assess factors affecting ultrasound attenuation coefficient (AC) measurement repeatability using the Canon ultrasound (US) system. The secondary aim was to evaluate whether similar results were obtained with other vendors' AC algorithms.</p><p><strong>Methods: </strong>This prospective study was performed at two centers from February to November 2022. AC was obtained using two US systems (Aplio i800 of Canon Medical Systems and Arietta 850 of Fujifilm). An algorithm combining AC and the backscatter coefficient was also used (Sequoia US System, Siemens Healthineers). To evaluate inter-observer concordance, AC was obtained by two expert operators using different transducer positions with regions of interest (ROIs) varying in terms of depth and size. Intra-observer concordance was evaluated on measurements performed intercostally, subcostally, and in the left liver lobe. Lin's concordance correlation coefficient was used.</p><p><strong>Results: </strong>Thirty-four participants (mean age, 49.4±15.1 years; 18 females) were studied. AC values progressively decreased with depth. The measurements in intercostal spaces on bestquality US images using a 3-cm ROI with its upper edge 2 cm below the liver capsule during breath-hold showed the highest intra-observer and inter-observer concordance (0.92 [95% confidence interval, 0.88 to 0.95] and 0.89 [0.82 to 0.96], respectively). Measurements in the left lobe showed the lowest intra-observer and inter-observer concordance (0.67 [0.43 to 0.90] and 0.58 [0.12 to 1.00], respectively). Intercostal space measurements also had the highest repeatability for the other two ultrasound systems.</p><p><strong>Conclusion: </strong>AC values obtained in intercostal spaces on best-quality images using a 3-cm ROI placed with its top 2 cm below the liver capsule were highly repeatable.</p>","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":"42 3","pages":"446-456"},"PeriodicalIF":3.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/d0/33/usg-23014.PMC10331055.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9770873","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}

{"title":"Ablation therapy for patients with colorectal liver metastases with and without extrahepatic metastases: evaluation of long-term outcomes and prognostic factors.","authors":"Jeanett Klubien,&nbsp;Jacob Rosenberg,&nbsp;Bjørn Ole Skjoldbye,&nbsp;Torben Lorentzen,&nbsp;Christian Pállson Nolsøe,&nbsp;Hans-Christian Lykkegaard Pommergaard","doi":"10.14366/usg.22208","DOIUrl":"https://doi.org/10.14366/usg.22208","url":null,"abstract":"<p><strong>Purpose: </strong>Ablation is a valuable treatment alternative to surgery for colorectal liver metastases. This study reports the long-term clinical outcomes in patients treated with ablation for colorectal liver metastases with or without extrahepatic metastases.</p><p><strong>Methods: </strong>Patients with colorectal liver metastases treated with ultrasound-guided ablation at Herlev Hospital, Denmark were included in this retrospective study.</p><p><strong>Results: </strong>This study included 284 patients with 582 metastases. Complete ablation was obtained in 258 patients (91%) evaluated within 6 weeks. During follow-up, 94 patients (33%) developed local recurrence. The median survival for all patients was 31 months, with 1-, 3-, and 5-year survival rates of 82%, 45%, and 21%, respectively. The median survival for patients with extrahepatic metastases (n=49, 17%) was 24 months compared with 33 months for patients without (P=0.142). Propensity score-adjusted Cox regression showed that extrahepatic metastases were associated with increased mortality, with a hazard ratio (HR) of 1.45 (95% confidence interval [CI], 1.02 to 2.05; P=0.039). In multivariate Cox regression analysis for all patients, increased mortality risk was found for a diameter ≥2.6 cm (HR, 1.59; 95% CI, 1.23 to 2.05), >1 metastasis (HR, 1.66; 95% CI, 1.28 to 2.16), and extrahepatic metastases (HR, 1.45; 95% CI, 1.04 to 2.03). Male sex (HR, 0.75; 95% CI, 0.58 to 0.98) and receiving chemotherapy (HR, 0.69; 95% CI, 0.52 to 0.92) were associated with decreased mortality.</p><p><strong>Conclusion: </strong>Ablation for colorectal liver metastases offers acceptable survival rates, including for patients with extrahepatic metastases. In addition, chemotherapy was associated with improved survival for both patients with and without extrahepatic metastases.</p>","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":"42 3","pages":"410-420"},"PeriodicalIF":3.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/e6/dc/usg-22208.PMC10331062.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9760375","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}

{"title":"Expanding dermatologic ultrasonography applications: further insights for enhanced patient management.","authors":"Ismail Mese","doi":"10.14366/usg.23059","DOIUrl":"https://doi.org/10.14366/usg.23059","url":null,"abstract":"","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":"42 3","pages":"474-475"},"PeriodicalIF":3.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/fa/be/usg-23059.PMC10331053.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9766994","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}

{"title":"The utility of two-dimensional shear wave elastography for predicting prostate cancer: a preliminary study.","authors":"Seong Soo Jeon,&nbsp;Chan Kyo Kim,&nbsp;Sung Yoon Park,&nbsp;Jae Hoon Chung,&nbsp;Minyong Kang,&nbsp;Hyun Hwan Sung,&nbsp;Byong Chang Jeong","doi":"10.14366/usg.22202","DOIUrl":"https://doi.org/10.14366/usg.22202","url":null,"abstract":"<p><strong>Purpose: </strong>This study investigated whether two-dimensional shear wave elastography (2D-SWE), using a newly developed device, is useful for predicting prostate cancer (PCa).</p><p><strong>Methods: </strong>In this prospective study, 38 patients with suspected PCa underwent 2D-SWE, followed by a standard systematic 12-core biopsy with and without a targeted biopsy. Tissue stiffness on SWE was measured in the target lesion and in 12 regions of the systematic biopsies, and the maximum (Emax), mean (Emean), and minimum (Emin) values of stiffness were generated. The area under the receiver operating characteristic curve (AUROC) for predicting clinically significant cancer (CSC) was calculated. Interobserver reliability and variability were evaluated using the intraclass correlation coefficient (ICC) and Bland-Altman plots, respectively.</p><p><strong>Results: </strong>PCa was found in 78 of 488 regions (16%) in 17 patients. In region-based and patientbased analyses, the Emax, Emean, and Emin values of PCa were significantly higher than those of benign prostate tissue (P<0.001). For the prediction of CSC, the AUROCs of Emax, Emean, and Emin in the patient-based analysis were 0.865, 0.855, and 0.828, while that of prostate-specific antigen density was 0.749. In the region-based analysis, the AUROCs of Emax, Emean, and Emin values were 0.772, 0.776, and 0.727, respectively. The interobserver reliability for the SWE parameters was moderate to good (ICC, 0.542 to 0.769), and the mean percentage differences on Bland-Altman plots were less than 7.0%.</p><p><strong>Conclusion: </strong>The 2D-SWE method appears to be a reproducible and useful tool for the prediction of PCa. A larger study is warranted for further validation.</p>","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":"42 3","pages":"400-409"},"PeriodicalIF":3.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/6f/19/usg-22202.PMC10331058.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9770361","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}

{"title":"Transient elastography with controlled attenuation parameter versus two-dimensional shear wave elastography with attenuation imaging for the evaluation of hepatic steatosis and fibrosis in NAFLD.","authors":"Jung Wook Seo,&nbsp;Youe Ree Kim,&nbsp;Jong Keon Jang,&nbsp;So Yeon Kim,&nbsp;Young Youn Cho,&nbsp;Eun Sun Lee,&nbsp;Dong Ho Lee","doi":"10.14366/usg.22212","DOIUrl":"https://doi.org/10.14366/usg.22212","url":null,"abstract":"Purpose This study compared the controlled attenuation parameter (CAP) to attenuation imaging (ATI) in the diagnosis of steatosis and transient elastography (TE) to two-dimensional shear wave elastography (2D-SWE) for the diagnosis of fibrosis in a prospectively constructed nonalcoholic fatty liver disease (NAFLD) patient cohort. Methods Participants who underwent TE with CAP were included from a previously constructed NAFLD cohort with multiparametric ultrasound data. The degree of hepatic steatosis and stage of liver fibrosis were assessed. Diagnostic performance was evaluated using the area under the receiver operating characteristic curve (AUROC) for the grades of steatosis (S1-3) and fibrosis (F0-F4). Results There were 105 participants. The distribution of hepatic steatosis grades (S0-S3) and liver fibrosis stages (F0-F4) was as follows: S0, n=34; S1, n=41; S2, n=22; S3, n=8; F0, n=63; F1, n=25; F2, n=5; F3, n=7; and F4, n=5. No significant difference was found between CAP and ATI in detecting ≥S1 (AUROC: 0.93 vs. 0.93, P=0.956) or ≥S2 (0.94 vs. 0.94, P=0.769). However, the AUROC of ATI in detecting ≥S3 was significantly higher than that of CAP (0.94 vs. 0.87, P=0.047). Regarding the detection of liver fibrosis, no significant difference was found between TE and 2D-SWE. The AUROCs of TE and 2D-SWE were as follows: ≥F1, 0.94 vs. 0.89 (P=0.107); ≥F2, 0.89 vs. 0.90 (P=0.644); ≥F3, 0.91 vs. 0.90 (P=0.703); and ≥F4, 0.88 vs. 0.92 (P=0.209). Conclusion 2D-SWE and TE showed comparable diagnostic performance in assessing liver fibrosis, and ATI provided significantly better performance in detecting ≥S3 steatosis than CAP.","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":"42 3","pages":"421-431"},"PeriodicalIF":3.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/a3/8e/usg-22212.PMC10331060.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9770358","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}

{"title":"Predicting the chemotherapeutic response of colorectal cancer liver metastasis using shear-wave elastography.","authors":"Jae Seok Bae,&nbsp;Jae Young Lee,&nbsp;Dong Ho Lee,&nbsp;Sae-Won Han,&nbsp;Yoojoo Lim,&nbsp;Tae-You Kim","doi":"10.14366/usg.22214","DOIUrl":"https://doi.org/10.14366/usg.22214","url":null,"abstract":"<p><strong>Purpose: </strong>The aim of this study was to assess the role of the shear-wave velocity (SWV) value in predicting chemotherapeutic response and progression-free survival (PFS) in patients with colorectal cancer liver metastasis (CRLM).</p><p><strong>Methods: </strong>In this prospective single-center study, participants with CRLM scheduled for chemotherapy were enrolled between May 2018 and June 2021. SWV measurements were obtained using shear-wave elastography at the CRLM site before and after initiating chemotherapy. Based on the Response Evaluation Criteria in Solid Tumors, the participants were categorized by chemotherapeutic response into responders (complete remission and partial remission) and non-responders (stable disease and progressive disease). Receiver operating characteristic (ROC) curve analysis was conducted to evaluate the performance of changes in SWV measurements in predicting the chemotherapeutic response of CRLM. In addition, a Cox proportional hazards model was used to identify variables associated with PFS.</p><p><strong>Results: </strong>In total, 67 participants (40 men; mean age, 62.3±10.1 years) were enrolled, including 34 responders and 33 non-responders. The area under the ROC curve, sensitivity, and negative predictive value of the SWV measurement in predicting non-responders were 0.840, 97.0%, and 95.2%, respectively, using a cutoff value of a 13% decrease. Additionally, a change in SWV values was independently associated with PFS (hazard ratio, 1.020), non-responder status, and the presence of five or more CRLMs.</p><p><strong>Conclusion: </strong>A change in SWV values measured after chemotherapy demonstrated meaningful diagnostic performance in predicting non-responsiveness among patients with CRLM. Additionally, a change in SWV values was independently associated with PFS.</p>","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":"42 3","pages":"457-465"},"PeriodicalIF":3.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/34/b3/usg-22214.PMC10331051.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10147031","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}

{"title":"Re: Expanding dermatologic ultrasonography applications: further insights for enhanced patient management.","authors":"Ximena Wortsman","doi":"10.14366/usg.23082","DOIUrl":"https://doi.org/10.14366/usg.23082","url":null,"abstract":"","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":"42 3","pages":"476-477"},"PeriodicalIF":3.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/26/ec/usg-23082.PMC10331052.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10147024","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}