Ultrasonography最新文献

{"title":"Re: Subdivision of intermediate suspicion, the 2021 K-TIRADS, and category III, indeterminate cytology, the 2017 TBSRTC, 2nd edition, in thyroidology: let bygones be bygones?","authors":"Haejung Kim, Soo Yeon Hahn, Jung Hee Shin, Myoung Kyoung Kim","doi":"10.14366/usg.23172","DOIUrl":"10.14366/usg.23172","url":null,"abstract":"How to cite this article: Kim H, Hahn SY, Shin JH, Kim MK. Re: Subdivision of intermediate suspicion, the 2021 K-TIRADS, and category I I I , indeterminate cytology, the 2017 TBSRTC, 2nd edition, in thyroidology: let bygones be bygones?. Ultrasonography 2023 Sep 11 [Epub]. https://doi.org/10.14366/usg.23172 We were greatly interested to read the letter to the editor from Sengul and Sengul, which pertains to our recent paper on the subcategorization of intermediate suspicion thyroid nodules, based on suspicious ultrasonographic (US) findings [1]. We appreciate the interest that Sengul and Sengul have shown in our paper and value their insightful comments on the complex issue of subdivision. The main focus of their comment and question seems to be about the echogenicity of the included thyroid nodules. We agree that our explanation of the nodules' echogenicity may not have been sufficiently clear. However, our initial study population was restricted to thyroid nodules in the Korean Thyroid Imaging Reporting and Data System (K-TIRADS) category 4 (intermediate suspicion) [1,2]. Therefore, from the outset, our study did not include any partially cystic or isoechoic/ hyperechoic nodules without any of the three suspicious US findings (punctate echogenic foci, nonparallel orientation, or irregular margins). These were classified as K-TIRADS category 3 (low suspicion). Similarly, we did not include solid hypoechoic nodules with any of the three suspicious US findings, as these were initially classified as K-TIRADS category 5, as Sengul and Sengul correctly noted. The K-TIRADS category 4 (intermediate suspicion) includes three types of nodules: (1) solid hypoechoic nodules without any of the three suspicious US findings, (2) entirely calcified nodules, and (3) partially cystic or isoechoic/hyperechoic nodules with any of the three suspicious US findings. Therefore, in our study, the \"nodules without suspicious findings\" group included solid hypoechoic nodules without any of the three suspicious US findings and entirely calcified nodules which do not allow for the assessment of nodule echogenicity. The \"nodules with suspicious findings\" group only included partially cystic or isoechoic/hyperechoic nodules with any of the three suspicious US findings. Consequently, the conclusions of our study remain unchanged. We agree with Sengul and Sengul regarding the importance of focusing on the subdivision of the intermediate or indeterminate category, whether from a pathological or radiological perspective. We extend our sincere gratitude to the authors for their valuable contribution to the discussion.","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/7a/67/usg-23172.PMC10555693.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10310832","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":"Diagnostic performance of ultrasound risk stratification systems on thyroid nodules cytologically classified as indeterminate: a systematic review and meta-analysis.","authors":"Zhichao Xing,&nbsp;Yuxuan Qiu,&nbsp;Jingqiang Zhu,&nbsp;Anping Su,&nbsp;Wenshuang Wu","doi":"10.14366/usg.23055","DOIUrl":"10.14366/usg.23055","url":null,"abstract":"<p><strong>Purpose: </strong>Ultrasound (US) risk stratification systems (RSSs) are increasingly being utilized for the optimal management of thyroid nodules, including those with indeterminate cytology. The goal of this study was to evaluate the category-based diagnostic performance of US RSSs in identifying malignancy in indeterminate nodules.</p><p><strong>Methods: </strong>This systematic review and meta-analysis was registered on PROSPERO (CRD42021266195). PubMed, EMBASE, and Web of Science were searched through December 1, 2022. Original articles reporting data on the performance of US RSSs for indeterminate nodules were included. The numbers of nodules classified as true negative, true positive, false negative, and false positive were extracted.</p><p><strong>Results: </strong>Thirty-three studies evaluating 7,225 indeterminate thyroid nodules were included. The diagnostic accuracy was quantitatively synthesized using a Bayesian bivariate model based on the integrated nested Laplace approximation in R. For the intermediate- to high-risk category, the sensitivity levels of the American College of Radiology, the American Thyroid Association, the European Thyroid Association, the Korean Thyroid Association/Korean Society of Thyroid Radiology, and Kwak et al. were found to be 0.80, 0.72, 0.76, 0.96, and 0.97, respectively. The corresponding specificity measurements were 0.36, 0.50, 0.49, 0.28, and 0.17. Furthermore, for the high-risk category, the sensitivity values were 0.40, 0.46, 0.55, 0.47, and 0.10, while the specificity levels were 0.91, 0.90, 0.71, 0.91, and 0.99, respectively.</p><p><strong>Conclusion: </strong>The overall diagnostic performance of the US RSSs was moderate in the differentiation of indeterminate nodules.</p>","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/7f/a5/usg-23055.PMC10555695.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10580416","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":"Comparative study of standard and small transrectal transducers for prostate ultrasonography.","authors":"Sung Il Hwang,&nbsp;Hyungwoo Ahn,&nbsp;Hak Jong Lee,&nbsp;Sung Il Jung","doi":"10.14366/usg.23084","DOIUrl":"10.14366/usg.23084","url":null,"abstract":"<p><strong>Purpose: </strong>The objective of this study was to evaluate pain and image quality associated with the use of two different ultrasound transducers.</p><p><strong>Methods: </strong>Fifty healthy male participants aged 30 years or older were prospectively enrolled. All ultrasound procedures were performed using a V8 machine (Samsung Medison, Seoul, Korea) equipped with EA2-11 (conventional) and miniER7 (small-caliber) transrectal transducers, operated by a single genitourinary radiologist. To minimize bias, one group of volunteers underwent ultrasonography with the conventional transducer first, followed by the small transducer. For the remaining participants, the examinations were performed in the opposite order. Ultrasonography, including the measurement of total prostate and transitional zone volumes, was conducted in accordance with standard practice. After testing with both probes, participants were asked to rate their pain on a 10-point numerical rating scale (NRS). A radiologist then evaluated the quality of the images acquired with each probe using a 5-point numeric scale and compared the prostate volume measurements obtained by each method.</p><p><strong>Results: </strong>The mean NRS scores associated with the conventional and small transducers were 4.7±1.8 and 2.7±1.2, respectively (P<0.05). The mean ultrasound image qualities from the two transducers were statistically similar (4.78 and 4.74, P>0.05). The whole prostate gland volume as measured with the conventional transducer (mean±standard deviation, 24.2±9.1 mL) was greater than the measurement (22.1±8.7 mL) obtained with the small-caliber transducer (P<0.05). However, only two of the 50 whole gland volume measurements differed by more than two standard deviations.</p><p><strong>Conclusion: </strong>The use of a small transrectal probe significantly reduced pain without compromising image quality.</p>","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/a3/81/usg-23084.PMC10555692.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10014559","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":"Clinical applications of shear wave dispersion imaging for breast lesions: a pictorial essay.","authors":"Min Sun Bae,&nbsp;Hyo Young Kim,&nbsp;Hyunseung Oh,&nbsp;Bo Kyoung Seo","doi":"10.14366/usg.23079","DOIUrl":"10.14366/usg.23079","url":null,"abstract":"<p><p>Shear wave dispersion (SWD) imaging is a newly developed ultrasound technology designed to evaluate the dispersion slope of shear waves, which is related to tissue viscosity. This advanced imaging technique holds potential for distinguishing malignant lesions from benign lesions and normal breast tissue. The SWD slope, as determined by shear wave elastography (SWE), could offer crucial insights into the characterization of breast lesions. This article presents SWE and SWD images of both malignant and benign breast lesions, in addition to normal breast tissue.</p>","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/23/35/usg-23079.PMC10555686.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10203141","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":"Subdivision of intermediate suspicion, the 2021 K-TIRADS, and category III, indeterminate cytology, the 2017 TBSRTC, 2nd edition, in thyroidology: let bygones be bygones?","authors":"Demet Sengul,&nbsp;Ilker Sengul","doi":"10.14366/usg.23113","DOIUrl":"10.14366/usg.23113","url":null,"abstract":"","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/be/5a/usg-23113.PMC10555690.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10257131","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":"Contrast-enhanced ultrasonography-based renal blood perfusion in brain-dead donors predicts early graft function.","authors":"Weiming He,&nbsp;Yuguang Xu,&nbsp;Chaoyang Gong,&nbsp;Xiaozhen Liu,&nbsp;Yuqiang Wu,&nbsp;Xi Xie,&nbsp;Jiazhen Chen,&nbsp;Yi Yu,&nbsp;Zhiyong Guo,&nbsp;Qiang Sun","doi":"10.14366/usg.23006","DOIUrl":"10.14366/usg.23006","url":null,"abstract":"<p><strong>Purpose: </strong>The aim of this study was to quantify renal microcirculatory perfusion in braindead donors using contrast-enhanced ultrasonography (CEUS), and to establish an accurate, noninvasive, and convenient index for predicting delayed graft function (DGF) post-transplantation.</p><p><strong>Methods: </strong>In total, 90 brain-dead donor kidneys (training group, n=60; validation group, n=30) examined between August 2020 and November 2022 were recruited in this prospective study. CEUS was performed on the kidneys of brain-dead donors 24 hours before organ procurement and time-intensity curves were constructed. The main measures were arrival time, time to peak, and peak intensity of the kidney segmental arteries, cortex, and medulla. Recipients were divided into DGF and non-DGF groups according to early post-transplant graft function. The area under the receiver operating characteristic curve (AUC) was used to assess diagnostic performance.</p><p><strong>Results: </strong>The arrival time of the kidney segmental artery and cortex and the time interval between the time to peak of the segmental artery and cortex were identified as independent factors associated with DGF by multivariate stepwise regression analysis. A new index for the joint prediction model of three variables, the contrast-enhanced ultrasonography/Kidney Donor Profile index (CEUS-KDPI), was developed. CEUS-KDPI showed high accuracy for predicting DGF (training group: AUC, 0.91; sensitivity, 90.5%; specificity, 92.3%; validation group: AUC, 0.84; sensitivity, 75.0%; specificity, 92.3%).</p><p><strong>Conclusion: </strong>CEUS-KDPI accurately predicted DGF after kidney transplantation. CEUS may be a potential noninvasive tool for bedside examinations before organ procurement and may be used to predict early renal function after kidney transplants kidneys from donors after brain death.</p>","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/22/bd/usg-23006.PMC10555683.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10362037","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":"Two-dimensional shear wave elastography (ElastQ) accurately rules out liver fibrosis and rules in advanced chronic liver disease across liver disease etiologies: a prospective multicenter study.","authors":"David J M Bauer,&nbsp;Annalisa De SilvestriI,&nbsp;Ruxandra Mare,&nbsp;Laura Maiocchi,&nbsp;Ambra Raimondi,&nbsp;Georg Semmler,&nbsp;Mattias Mandorfer,&nbsp;Ioan Sporea,&nbsp;Giovanna Ferraioli,&nbsp;Thomas Reiberger","doi":"10.14366/usg.23069","DOIUrl":"10.14366/usg.23069","url":null,"abstract":"<p><strong>Purpose: </strong>This study evaluated ElastQ, a two-dimensional shear wave elastography (2D-SWE) technique, for the non-invasive assessment of liver fibrosis risk using liver stiffness measurement (LSM). The aim was to determine its diagnostic accuracy and establish LSM cutoffs for clinical risk stratification.</p><p><strong>Methods: </strong>A prospective multicenter study was conducted, employing vibration-controlled transient elastography (VCTE) as a reference standard. The statistical analysis utilized Pearson correlations and Lin concordance correlation coefficients, diagnostic areas under the curve (AUCs), and 90%-specific rule-in and 90%-sensitive rule-out ElastQ cutoffs.</p><p><strong>Results: </strong>The study included 875 patients at risk for liver disease, of whom 816 (376 women, 46.1%; median age, 57.0 years [interquartile range, 19.0]) had successful and reliable VCTE- and ElastQ-LSMs. The median LSM was 13.0 kPa (range, 2.0 to 75.0 kPa) for VCTE and 6.6 kPa (range, 2.9 to 26.5 kPa) for ElastQ. The correlation between VCTE-LSM and ElastQ-LSM was adequate for VCTE-LSM <15 kPa (Pearson r=0.63) but lower for VCTE-LSM ≥15.0 kPa (Pearson r=0.27). VCTE-LSM indicated no fibrosis risk (<5.0 kPa) in 178 cases (21.8%), gray zone (5.0-9.9 kPa) in 347 cases (42.5%), and advanced chronic liver disease (ACLD; ≥10.0 kPa) in 291 cases (35.7%). The diagnostic AUC for ElastQ-LSM was 0.82 for fibrosis risk and 0.90 for ACLD. The clinically relevant ElastQ cutoffs for ruling out fibrosis risk and ruling in compensated ACLD (cACLD) were <5.0 kPa and ≥9.0 kPa, respectively.</p><p><strong>Conclusion: </strong>ElastQ 2D-SWE enables accurate, non-invasive assessments of liver fibrosis and cACLD risk. In clinical practice, ElastQ-LSM <5.0 kPa rules out fibrosis, while ElastQ-LSM ≥9.0 kPa rules in cACLD.</p>","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/81/e8/usg-23069.PMC10555684.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10112496","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":"Evaluation of advective solute infiltration to porous media by pulsed focused ultrasound-induced acoustic streaming effects","authors":"Jared Van Reet, Kate Tunnell, Kara Anderson, Hyun-Chul Kim, Evgenii Kim, Kavin Kowsari, Seung-Schik Yoo","doi":"10.14366/usg.23037","DOIUrl":"https://doi.org/10.14366/usg.23037","url":null,"abstract":"PURPOSE\u0000Acoustic streaming induced by applying transcranial focused ultrasound (FUS) promotes localized advective solute transport in the brain and has recently garnered research interest for drug delivery and enhancement of brain waste clearance. The acoustic streaming behavior in brain tissue is difficult to model numerically and thus warrants an in vitro examination of the effects of using different sonication parameters, in terms of frequency, intensity, and pulse duration (PD).\u0000\u0000\u0000METHODS\u0000Melamine and polyvinyl alcohol (PVA) foams were used to mimic the porous brain tissue, which contains leptomeningeal fenestrations and perivascular space, while agar hydrogel was used to emulate denser neuropil. FUS was delivered to these media, which were immersed in a phosphate-buffered saline containing toluidine blue O dye, across various frequencies (400, 500, and 600 kHz; applicable to transcranial delivery) in a pulsed mode at two different spatialpeak pulse-average intensities (3 and 4 W/cm2).\u0000\u0000\u0000RESULTS\u0000Image analysis showed that the use of 400 kHz yielded the greatest dye infiltration in melamine foam, while sonication had no impact on infiltration in the agar hydrogel due to the dominance of diffusional transport. Using a fixed spatial-peak temporal-average intensity of 0.4 W/cm2 at 400 kHz, a PD of 75 ms resulted in the greatest infiltration depth in both melamine and PVA foams among the tested range (50-150 ms).\u0000\u0000\u0000CONCLUSION\u0000These findings suggest the existence of a specific frequency and PD that induce greater enhancement of solute/fluid movement, which may contribute to eventual in vivo applications in promoting waste clearance from the brain.","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136194013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultrasound-guided ethanol ablation versus Sistrunk operation as a primary treatment for thyroglossal duct cyst","authors":"Dongbin Ahn, Ji Hye Kwak, Gil Joon Lee, Jin Ho Sohn","doi":"10.14366/usg.23128","DOIUrl":"https://doi.org/10.14366/usg.23128","url":null,"abstract":"","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134968370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Artificial intelligence in breast ultrasound: application in clinical practice","authors":"Hila Fruchtman Brot, Victoria L. Mango","doi":"10.14366/usg.23116","DOIUrl":"https://doi.org/10.14366/usg.23116","url":null,"abstract":"Ultrasonography (renamed from the Journal of Korean Society of Ultrasound in Medicine in January 2014), the official English-language journal of the Korean Society of Ultrasound in Medicine (KSUM), is an international peer-reviewed academic journal dedicated to practice, research, technology, and education dealing with medical ultrasound, Aims and Scope:Ultrasonography (renamed from the Journal of Korean Society of Ultrasound in Medicine in January 2014), the official English-language journal of the Korean Society of Ultrasound in Medicine (KSUM), is an international peer-reviewed academic journal dedicated to practice, research, technology, and education dealing with medical ultrasound.It is published four times per year: January 1, April 1, July 1, and October 1. Original articles, topical reviews, pictorial essays, and notable case reports are published in Ultrasonography covering state-of-the-art content. Ultrasonography also serves as a medium for cooperation among physicians and specialists from around the world who are focusing on various ultrasound technology and disease problems.","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136282829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}