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Transperineal versus transrectal prostate fiducial insertion in radiation treatment of prostate cancer: a systematic review and meta-analysis. 前列腺癌放射治疗中经会阴与经直肠前列腺靶点插入:系统综述与荟萃分析。
IF 2.4 3区 医学
Ultrasonography Pub Date : 2024-07-01 Epub Date: 2024-05-27 DOI: 10.14366/usg.23229
Seong Sook Hong, Sung Hwan Bae, Jiyoung Hwang, Eun Ji Lee
{"title":"Transperineal versus transrectal prostate fiducial insertion in radiation treatment of prostate cancer: a systematic review and meta-analysis.","authors":"Seong Sook Hong, Sung Hwan Bae, Jiyoung Hwang, Eun Ji Lee","doi":"10.14366/usg.23229","DOIUrl":"10.14366/usg.23229","url":null,"abstract":"<p><strong>Purpose: </strong>To provide more accurate and definitive conclusions regarding the clinical and technical complications associated with the transperineal (TP) and transrectal (TR) approaches, a comprehensive review of observational studies and randomized controlled trials was conducted. This systematic review covered all eligible studies to facilitate a thorough comparison of complications linked to the two fiducial marker insertion methods, TP and TR.</p><p><strong>Methods: </strong>A comprehensive search of the literature was conducted, encompassing databases such as PubMed, Embase, and the Cochrane Library, up to July 7, 2023. The relative risk and 95% confidence interval were utilized to evaluate the diagnosis and complication rates.</p><p><strong>Results: </strong>The final selection for the methodological quality analysis included 13 observational studies that utilized TP and TR gold fiducial insertion approaches. The meta-analysis revealed significantly lower risks of urinary tract infections (UTI) and rectal bleeding with the TP approach.</p><p><strong>Conclusion: </strong>The use of both TP and TR techniques for placing gold seed fiducial markers has proven to be an effective, safe, and well-tolerated method for image-guided radiation therapy in prostate cancer patients. A significant benefit of the TP technique is its ability to avoid rectal puncture, thereby reducing the risk of UTIs. Although the incidence of UTIs and rectal bleeding associated with the TR method is relatively low, these complications can disrupt patient wellbeing and potentially cause delays in treatment.</p>","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":" ","pages":"229-237"},"PeriodicalIF":2.4,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11222131/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141428293","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
Severity of hyperechoic pancreas on preoperative ultrasonography: high potential as a clinically useful predictor of a postoperative pancreatic fistula. 术前超声波检查中胰腺高回声的严重程度:作为术后胰瘘临床有用预测指标的巨大潜力。
IF 2.4 3区 医学
Ultrasonography Pub Date : 2024-07-01 Epub Date: 2024-05-29 DOI: 10.14366/usg.24046
Jung Joo Hong, Hyun Jeong Park, Eun Sun Lee, Min Ju Kim
{"title":"Severity of hyperechoic pancreas on preoperative ultrasonography: high potential as a clinically useful predictor of a postoperative pancreatic fistula.","authors":"Jung Joo Hong, Hyun Jeong Park, Eun Sun Lee, Min Ju Kim","doi":"10.14366/usg.24046","DOIUrl":"10.14366/usg.24046","url":null,"abstract":"<p><strong>Purpose: </strong>This study aimed to evaluate the effectiveness of using the severity of hyperechoic pancreas (HP) observed on preoperative ultrasonography (US) as a predictor of clinically relevant postoperative pancreatic fistula (CR-POPF).</p><p><strong>Methods: </strong>A retrospective study was conducted with 94 patients who underwent pancreatectomy between April 2006 and March 2021. The severity of HP on US was classified into two categories (normal to mild vs. moderate to severe [obvious HP]). Multiple preoperative and intraoperative parameters were analyzed to predict CR-POPF.</p><p><strong>Results: </strong>Out of the 94 patients, CR-POPF occurred in 21 (22%) patients, and obvious HP was observed in 30 (32%). Univariate analysis revealed that moderate to severe HP (obvious HP) was significantly associated with an increased incidence of CR-POPF (P&lt;0.001). Factors such as the absence of pancreatitis, a small main pancreatic duct (&lt;3 mm), intraoperative soft pancreas, increased body mass index, and lower pancreatic attenuation and attenuation index were also associated with CR-POPF (all P&lt;0.05). Multivariate analysis showed that obvious HP and soft pancreatic texture were independent predictors of CR-POPF, with odds ratios of 11.53 (P=0.001) and 14.12 (P=0.003), respectively. The combination of obvious HP and soft pancreatic texture provided the most accurate prediction for CR-POPF.</p><p><strong>Conclusion: </strong>The severity of HP, as observed on preoperative US, was significantly associated with CR-POPF. Severe HP may serve as a clinically useful predictor of POPF, especially when evaluated alongside the intraoperative pancreatic texture.</p>","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":" ","pages":"272-283"},"PeriodicalIF":2.4,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11222128/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141332451","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
Casting light on the overlooked trigger point of the interosseous muscles in metatarsalgia: insights and treatment strategies. 揭示跖痛中被忽视的骨间肌触发点:见解和治疗策略。
IF 2.4 3区 医学
Ultrasonography Pub Date : 2024-07-01 Epub Date: 2024-05-23 DOI: 10.14366/usg.24086
Bülent Alyanak, Burak Tayyip Dede, Mustafa Hüseyin Temel, Mustafa Turgut Yıldızgören, Fatih Bağcıer
{"title":"Casting light on the overlooked trigger point of the interosseous muscles in metatarsalgia: insights and treatment strategies.","authors":"Bülent Alyanak, Burak Tayyip Dede, Mustafa Hüseyin Temel, Mustafa Turgut Yıldızgören, Fatih Bağcıer","doi":"10.14366/usg.24086","DOIUrl":"10.14366/usg.24086","url":null,"abstract":"","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":" ","pages":"294-296"},"PeriodicalIF":2.4,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11222126/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141302012","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
Using ultrasound shear wave elastography to characterize peripheral nerve mechanics: a systematic review on the normative reference values in healthy individuals. ng 超声剪切波弹性成像表征周围神经力学:关于健康人标准参考值的系统综述。
IF 3.1 3区 医学
Ultrasonography Pub Date : 2024-05-01 Epub Date: 2024-02-14 DOI: 10.14366/usg.23211
Tiago Neto, Johanna Johannsson, Ricardo J Andrade
{"title":"Using ultrasound shear wave elastography to characterize peripheral nerve mechanics: a systematic review on the normative reference values in healthy individuals.","authors":"Tiago Neto, Johanna Johannsson, Ricardo J Andrade","doi":"10.14366/usg.23211","DOIUrl":"10.14366/usg.23211","url":null,"abstract":"<p><p>Ultrasound shear wave elastography (SWE) is an emerging non-invasive imaging technique for peripheral nerve evaluation. Shear wave velocity (SWV), a surrogate measure of stiffness, holds promise as a biomarker for various peripheral nerve disorders. However, to maximize its clinical and biomechanical value, it is important to fully understand the factors that influence nerve SWV measurements. This systematic review aimed to identify the normal range of SWV for healthy sciatic and tibial nerves and to reveal the factors potentially affecting nerve SWV. An electronic search yielded 17 studies eligible for inclusion, involving 548 healthy individuals (age range, 17 to 72 years). Despite very good reliability metrics, the reported SWV values differed considerably across studies for the sciatic (1.9-9.9 m/s) and tibial (2.3-9.1 m/s) nerves. Factors such as measurement proximity to joint regions, limb postures inducing nerve axial stretching, and transducer alignment with nerve fiber orientation were associated with increased SWV. These findings suggest regional-specific nerve mechanical properties, non-linear elastic behaviour, and marked mechanical anisotropy. The impact of age and sex remains unclear and warrants further investigation. These results emphasize the importance of considering these factors when assessing and interpreting nerve SWE. While increased SWV has been linked to pathological changes affecting nerve tissue mechanics, the significant variability observed in healthy nerves highlights the need for standardized SWE assessment protocols. Developing guidelines for enhanced clinical utility and achieving a comprehensive understanding of the factors that influence nerve SWE assessments are critical in advancing the field.</p>","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":" ","pages":"169-178"},"PeriodicalIF":3.1,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11079506/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140307809","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
Associations between carotid plaque shape, biomechanical parameters, and ischemic stroke in mild carotid stenosis with a single plaque. 单一斑块轻度颈动脉狭窄患者颈动脉斑块形状、生物力学参数与缺血性脑卒中之间的关系。
IF 3.1 3区 医学
Ultrasonography Pub Date : 2024-04-02 DOI: 10.14366/usg.24019
Man Zhao, Luni Zhang, Jing Chen, Shiyao Gu, Rong Wu, Caixia Jia
{"title":"Associations between carotid plaque shape, biomechanical parameters, and ischemic stroke in mild carotid stenosis with a single plaque.","authors":"Man Zhao, Luni Zhang, Jing Chen, Shiyao Gu, Rong Wu, Caixia Jia","doi":"10.14366/usg.24019","DOIUrl":"https://doi.org/10.14366/usg.24019","url":null,"abstract":"This cross-sectional cohort-comparison observational study investigated the value of high-frame-rate vector flow (V Flow) imaging for evaluating differences in carotid plaque shape and biomechanical parameters in patients with mild stenosis according to a recent history of ipsilateral ischemic stroke.","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":"17 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140635828","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}
引用次数: 0
Non-traumatic lower abdominal pain: ultrasonographic and clinical differential diagnosis. 非创伤性下腹痛:超声和临床鉴别诊断。
IF 3.1 3区 医学
Ultrasonography Pub Date : 2024-04-01 Epub Date: 2024-01-27 DOI: 10.14366/usg.23227
Iraklis Perysinakis, Evangelia E Vassalou
{"title":"Non-traumatic lower abdominal pain: ultrasonographic and clinical differential diagnosis.","authors":"Iraklis Perysinakis, Evangelia E Vassalou","doi":"10.14366/usg.23227","DOIUrl":"10.14366/usg.23227","url":null,"abstract":"<p><p>Lower abdominal pain is frequently reported and has a diverse differential diagnosis. In cases with atypical presentation and nonspecific findings, further imaging evaluation is required to confirm the clinical suspicion and to distinguish between self-limiting disorders and those requiring immediate intervention. In line with European guidelines, transabdominal ultrasonography is recommended as a first-line imaging modality for clinically suspected acute appendicitis and acute diverticulitis, which respectively represent the predominant causes of right and left lower quadrant abdominal pain. It is similarly the preferred method for evaluating suspected obstetric/gynecologic and genitourinary diseases. Computed tomography is utilized as a secondary option when ultrasonography results are inconclusive. This pictorial essay illustrates the sonographic features of the most common conditions associated with lower abdominal pain and outlines the clinical characteristics of each entity.</p>","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":"43 2","pages":"151-168"},"PeriodicalIF":3.1,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10915120/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140040845","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
Foot pain in children and adolescents: a problem-based approach in musculoskeletal ultrasonography. 儿童和青少年足部疼痛:肌肉骨骼超声波检查中的问题导向法。
IF 3.1 3区 医学
Ultrasonography Pub Date : 2024-03-19 DOI: 10.14366/usg.24002
Lihua Liu, Tiezheng Wang, Hengtao Qi
{"title":"Foot pain in children and adolescents: a problem-based approach in musculoskeletal ultrasonography.","authors":"Lihua Liu, Tiezheng Wang, Hengtao Qi","doi":"10.14366/usg.24002","DOIUrl":"https://doi.org/10.14366/usg.24002","url":null,"abstract":"Various etiologies and risk factors contribute to foot pain in children and adolescents, including conditions such as Kohler's disease, Sever's disease, Iselin's disease, rigid flat foot, accessory navicular, Freiberg's disease, sesamoiditis, os trigonum syndrome, and more. High-frequency musculoskeletal ultrasonography can show both the bone surface and the surrounding soft tissue clearly from various angles in real-time, thereby providing a higher level of detail that is helpful for identifying the etiology of foot pain and monitoring disease progression compared with other imaging modalities. This review provides an overview of the epidemiology, pathophysiology, clinical manifestations and characteristic ultrasonographic findings of select foot pain conditions in children and adolescents.","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":"50 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140634490","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}
引用次数: 0
Knot-and-ear sign: a pathognomonic ultrasonographic feature of suture granuloma after thyroid surgery. 结耳征:甲状腺手术后缝合肉芽肿的超声诊断特征。
IF 3.1 3区 医学
Ultrasonography Pub Date : 2024-03-01 Epub Date: 2024-01-23 DOI: 10.14366/usg.23210
Pae Sun Suh, So Yeong Jeong, Jung Hwan Baek, Tae Yong Kim, Yu-Mi Lee, Dong Eun Song, Yun Seo Park, Je Young Ahn, Sae Rom Chung, Young Jun Choi, Jeong Hyun Lee
{"title":"Knot-and-ear sign: a pathognomonic ultrasonographic feature of suture granuloma after thyroid surgery.","authors":"Pae Sun Suh, So Yeong Jeong, Jung Hwan Baek, Tae Yong Kim, Yu-Mi Lee, Dong Eun Song, Yun Seo Park, Je Young Ahn, Sae Rom Chung, Young Jun Choi, Jeong Hyun Lee","doi":"10.14366/usg.23210","DOIUrl":"10.14366/usg.23210","url":null,"abstract":"<p><strong>Purpose: </strong>This study investigated the clinical and ultrasonographic (US) findings of suture granulomas and recurrent tumors, and aimed to identify specific characteristics of suture granulomas through an experimental study.</p><p><strong>Methods: </strong>This retrospective study included 20 pathologically confirmed suture granulomas and 40 recurrent tumors between January 2010 and December 2020. The clinical findings included suture material, surgery, and initial TNM stage. The US findings included shape, size, margin, echogenicity, heterogeneity, vascularity, and internal echogenic foci. The distribution, paired appearance, and \"knot-and-ear\" appearance of internal echogenic foci were assessed. An experiment using pork meat investigated the US configuration of suture knots.</p><p><strong>Results: </strong>Eighteen patients with 20 suture granulomas (15 women; mean age, 52±13 years) and 37 patients with 40 recurrent tumors (24 women; 54±18 years) were included. Patients with suture granulomas exhibited earlier initial T and N stages than those with recurrent tumors. The knot-and-ear appearance, defined as an echogenic dot accompanied by two adjacent echogenic dots or lines based on experimental findings, was observed in 50% of suture granulomas, but not in recurrent tumors (P<0.001). Central internal echogenic foci (68.8%, P=0.023) and paired appearance (75.0%, P<0.001) were more frequent in suture granulomas. During follow-up, 94.1% of suture granulomas shrunk.</p><p><strong>Conclusion: </strong>The knot-and-ear appearance is a potential pathognomonic finding of suture granuloma, and central internal echogenic foci with paired appearance were typical US features. Clinically, suture granulomas showed early T and N stages and size reduction during follow-up. Understanding these features can prevent unnecessary biopsy or diagnostic surgery.</p>","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":" ","pages":"141-150"},"PeriodicalIF":3.1,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10915117/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139900897","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
Non-invasive evaluation of testicular torsion using ultrasound shear wave elastography: an experimental study. 利用超声剪切波弹性成像技术对睾丸扭转进行无创评估:一项实验研究。
IF 3.1 3区 医学
Ultrasonography Pub Date : 2024-03-01 Epub Date: 2023-11-23 DOI: 10.14366/usg.23171
Yunyong Lin, Wenjie Lu, Guojing Li, Lin Mao, Liangyan Ouyang, Zhimin Zhu, Shiyan Chen, Peixian Liang, Haowei Jin, Linlin Gao, Jianjing Liang, Shaodong Qiu, Fei Chen
{"title":"Non-invasive evaluation of testicular torsion using ultrasound shear wave elastography: an experimental study.","authors":"Yunyong Lin, Wenjie Lu, Guojing Li, Lin Mao, Liangyan Ouyang, Zhimin Zhu, Shiyan Chen, Peixian Liang, Haowei Jin, Linlin Gao, Jianjing Liang, Shaodong Qiu, Fei Chen","doi":"10.14366/usg.23171","DOIUrl":"10.14366/usg.23171","url":null,"abstract":"<p><strong>Purpose: </strong>The goal of this study was to examine changes in testicular stiffness at various intervals after the induction of testicular torsion, as well as to assess the predictive value of testicular stiffness for testicular spermatogenesis after torsion.</p><p><strong>Methods: </strong>Sixty healthy male rabbits were randomly assigned to one of three groups: complete testicular torsion, incomplete testicular torsion, or control. All rabbits underwent preoperative and postoperative scrotal ultrasonography, including shear wave elastography (SWE), at predetermined intervals. Changes in SWE values were analyzed and compared using repeatedmeasures analysis of variance. To assess the diagnostic performance of SWE in determining the degree of spermatogenic function impairment, the areas under the receiver operating characteristic curves (AUCs) were calculated.</p><p><strong>Results: </strong>SWE measurements in both central and peripheral zones of the testicular parenchyma affected by torsion demonstrated significant negative correlations with spermatogenesis, with coefficients of r=-0.759 (P<0.001) and r=-0.696 (P<0.001), respectively. The AUCs of SWE measurements in the central or peripheral zones of the torsed testicular parenchyma were 0.886 (sensitivity, 83.3%; specificity, 100%) and 0.824 (sensitivity, 83.3%; specificity, 73.3%) for distinguishing between hypospermatogenesis and spermatogenic arrest, respectively (P=0.451, DeLong test).</p><p><strong>Conclusion: </strong>Variations in the stiffness of both central and peripheral regions of the testicular parenchyma correlate with the extent and duration of torsion, exhibiting a specific pattern. The \"stiff ring sign\" is the characteristic SWE finding associated with testicular torsion. SWE appears to aid in the non-invasive determination of the extent of spermatogenic damage in torsed testes.</p>","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":" ","pages":"98-109"},"PeriodicalIF":3.1,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10915115/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139703928","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
Diagnostic accuracy of CT and Doppler US for hepatic outflow obstruction after pediatric liver transplantation using left lobe or left lateral section grafts. 使用左叶或左外侧切片移植物进行小儿肝移植后,CT 和多普勒超声对肝流出道梗阻的诊断准确性。
IF 3.1 3区 医学
Ultrasonography Pub Date : 2024-03-01 Epub Date: 2024-01-11 DOI: 10.14366/usg.23190
Pyeong Hwa Kim, Hee Mang Yoon, Ah Young Jung, Jin Seong Lee, Young Ah Cho, Seak Hee Oh, Jung-Man Namgoong
{"title":"Diagnostic accuracy of CT and Doppler US for hepatic outflow obstruction after pediatric liver transplantation using left lobe or left lateral section grafts.","authors":"Pyeong Hwa Kim, Hee Mang Yoon, Ah Young Jung, Jin Seong Lee, Young Ah Cho, Seak Hee Oh, Jung-Man Namgoong","doi":"10.14366/usg.23190","DOIUrl":"10.14366/usg.23190","url":null,"abstract":"<p><strong>Purpose: </strong>The aim of this study was to evaluate diagnostic accuracy and to establish computed tomography (CT) and Doppler ultrasonography (US) criteria for hepatic outflow obstruction after pediatric liver transplantation (LT) using left lobe (LL) or left lateral section (LLS) grafts.</p><p><strong>Methods: </strong>Pediatric patients who underwent LT using LL or LLS grafts between January 1999 and December 2021 were retrospectively included. The diagnostic performance of Doppler US and CT parameters for hepatic outflow obstruction was calculated using receiver operating characteristic (ROC) curve analysis. A diagnostic decision tree model combining the imaging parameters was developed.</p><p><strong>Results: </strong>In total, 288 patients (150 girls; median age at LT, 1.8 years [interquartile range, 0.9 to 3.6 years]) were included. Among the Doppler US parameters, venous pulsatility index (VPI) showed excellent diagnostic performance (area under the ROC curve [AUROC], 0.90; 95% confidence interval [CI], 0.86 to 0.93; Youden cut-off value, 0.40). Among the CT parameters, anastomotic site diameter (AUROC, 0.92; 95% CI, 0.88 to 0.95; Youden cut-off, 4.2 mm) and percentage of anastomotic site stenosis (AUROC, 0.88; 95% CI, 0.84 to 0.92; Youden cut-off, 35%) showed excellent and good diagnostic performance, respectively. A decision tree model combining the VPI, peak systolic velocity, and percentage of anastomotic site stenosis stratified patients according to the risk of hepatic outflow obstruction.</p><p><strong>Conclusion: </strong>VPI, anastomotic site diameter, and percentage of anastomotic site stenosis were reliable imaging parameters for diagnosing hepatic outflow obstruction after pediatric LT using LL or LLS grafts.</p>","PeriodicalId":54227,"journal":{"name":"Ultrasonography","volume":" ","pages":"110-120"},"PeriodicalIF":3.1,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10915118/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139900896","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
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