Ultraschall in Der Medizin最新文献_第10页

Real-time carotid plaque recognition from dynamic ultrasound videos based on artificial neural network. 基于人工神经网络从动态超声视频中实时识别颈动脉斑块

IF 3.1 3区医学

Ultraschall in Der Medizin Pub Date : 2024-10-01 Epub Date: 2023-12-19 DOI: 10.1055/a-2180-8405

Yao Wei, Bin Yang, Ling Wei, Jun Xue, Yicheng Zhu, Jianchu Li, Mingwei Qin, Shuyang Zhang, Qing Dai, Meng Yang

{"title":"Real-time carotid plaque recognition from dynamic ultrasound videos based on artificial neural network.","authors":"Yao Wei, Bin Yang, Ling Wei, Jun Xue, Yicheng Zhu, Jianchu Li, Mingwei Qin, Shuyang Zhang, Qing Dai, Meng Yang","doi":"10.1055/a-2180-8405","DOIUrl":"10.1055/a-2180-8405","url":null,"abstract":"Purpose: Carotid ultrasound allows noninvasive assessment of vascular anatomy and function with real-time display. Based on the transfer learning method, a series of research results have been obtained on the optimal image recognition and analysis of static images. However, for carotid plaque recognition, there are high requirements for self-developed algorithms in real-time ultrasound detection. This study aims to establish an automatic recognition system, Be Easy to Use (BETU), for the real-time and synchronous diagnosis of carotid plaque from ultrasound videos based on an artificial neural network.Materials and methods: 445 participants (mean age, 54.6±7.8 years; 227 men) were evaluated. Radiologists labeled a total of 3259 segmented ultrasound images from 445 videos with the diagnosis of carotid plaque, 2725 images were collected as a training dataset, and 554 images as a testing dataset. The automatic plaque recognition system BETU was established based on an artificial neural network, and remote application on a 5G environment was performed to test its diagnostic performance.Results: The diagnostic accuracy of BETU (98.5%) was consistent with the radiologist's (Kappa = 0.967, P < 0.001). Remote diagnostic feedback based on BETU-processed ultrasound videos could be obtained in 150ms across a distance of 1023 km between the ultrasound/BETU station and the consultation workstation.Conclusion: Based on the good performance of BETU in real-time plaque recognition from ultrasound videos, 5G plus Artificial intelligence (AI)-assisted ultrasound real-time carotid plaque screening was achieved, and the diagnosis was made.","PeriodicalId":49400,"journal":{"name":"Ultraschall in Der Medizin","volume":" ","pages":"493-500"},"PeriodicalIF":3.1,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11466531/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138812365","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

Endoscopic ultrasound-guided ethanol ablation versus surgical resection of insulinomas. 内镜超声引导下乙醇消融与胰岛素瘤手术切除的比较。

IF 3.1 3区医学

Ultraschall in Der Medizin Pub Date : 2024-10-01 Epub Date: 2023-11-06 DOI: 10.1055/a-2204-5814

Christian Jürgensen, Marius Eckart, Linus Haberbosch, Frank Tacke, Arvid Sandforth, Andreas L Birkenfeld, Dietrich Overkamp, Martin Daniels, Martina Mogl, Peter Goretzki, Christian Strasburger, Knut Mai, Joachim Spranger, Reiner Jumpertz von Schwartzenberg

{"title":"Endoscopic ultrasound-guided ethanol ablation versus surgical resection of insulinomas.","authors":"Christian Jürgensen, Marius Eckart, Linus Haberbosch, Frank Tacke, Arvid Sandforth, Andreas L Birkenfeld, Dietrich Overkamp, Martin Daniels, Martina Mogl, Peter Goretzki, Christian Strasburger, Knut Mai, Joachim Spranger, Reiner Jumpertz von Schwartzenberg","doi":"10.1055/a-2204-5814","DOIUrl":"10.1055/a-2204-5814","url":null,"abstract":"Purpose: Insulinoma is a rare tumor of the pancreas that can lead to hypoglycemia. To date, the standard therapy is surgical resection. After the first case report of successful endoscopic ultrasound-guided (EUS) ethanol injection 16 years ago, the need for establishing an alternative treatment method remains unchanged given the high morbidity rates of surgery and its unsuitability in some patients.Materials and methods: Here, we provide retrospective data from 33 insulinoma patients that were treated at our center between 2010 and 2021. Of these, 9 patients were treated with EUS-guided ethanol injection and 24 underwent pancreatic surgery.Results: The ethanol group was older (ethanol: mean ± SE 67.8±11.2 years vs. surgery: 52.3±15.7, p=0.014) with a higher Charlson Comorbidity Index (3.0 (1.0;4.0) vs. 1.0 (0.0;2.0), p=0.008). The lowest glucose values were similar between groups before (ethanol: 2.09±0.17 mmol/l vs. surgery: 1.81±0.08, p=0.158) and after (4.95±0.74 vs. 5.41±0.28, p=0.581) the respective treatments. Complications occurred more frequently in the surgery group (11 % vs. 54 %, p=0.026). One patient after prior partial pancreatectomy died postoperatively. The hospitalization time was significantly shorter in the ethanol group (4.78±0.78 days vs. 19.88±4.07, p<0.001).Conclusion: EUS-guided ethanol injection can be similarly effective for the treatment of hyperinsulinemic hypoglycemia compared with pancreatic surgery but seems to be associated with less severe complications. This implies the need for prospective randomized trials in insulinoma patients with a low risk for malignancy.","PeriodicalId":49400,"journal":{"name":"Ultraschall in Der Medizin","volume":" ","pages":"519-527"},"PeriodicalIF":3.1,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71488017","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

Bridging the notch: quantification of the end diastolic notch to better predict fetal growth restriction. 连接缺口：量化舒张末期切迹，更好地预测胎儿生长受限。

IF 3.1 3区医学

Ultraschall in Der Medizin Pub Date : 2024-10-01 Epub Date: 2024-01-31 DOI: 10.1055/a-2257-8557

Sheila Yu, Ananya Gopika Nair, Tianhua Huang, Nir Melamed, Elad Mei Dan, Amir Aviram

{"title":"Bridging the notch: quantification of the end diastolic notch to better predict fetal growth restriction.","authors":"Sheila Yu, Ananya Gopika Nair, Tianhua Huang, Nir Melamed, Elad Mei Dan, Amir Aviram","doi":"10.1055/a-2257-8557","DOIUrl":"10.1055/a-2257-8557","url":null,"abstract":"Purpose: We aimed to evaluate several quantitative methods to describe the diastolic notch (DN) and compare their performance in the prediction of fetal growth restriction.Materials and methods: Patients who underwent a placental scan at 16-26 weeks of gestation and delivered between Jan 2016 and Dec 2020 were included. The uterine artery pulsatility index was measured for all of the patients. In patients with a DN, it was quantified using the notch index and notch depth index. Odds ratios for small for gestational age neonates (defined as birth weight <10th and <5th percentile) were calculated. Predictive values of uterine artery pulsatility, notch, and notch depth index for fetal growth restriction were calculated.Results: Overall, 514 patients were included, with 69 (13.4%) of them delivering a small for gestational age neonate (birth weight<10th percentile). Of these, 20 (20.9%) had a mean uterine artery pulsatility index >95th percentile, 13 (18.8%) had a unilateral notch, and 11 (15.9%) had a bilateral notch. 16 patients (23.2%) had both a high uterine artery pulsatility index (>95th percentile) and a diastolic notch. Comparison of the performance between uterine artery pulsatility, notch, and notch depth index using receiver operating characteristic curves to predict fetal growth restriction <10th percentile found area under the curve values of 0.659, 0.679, and 0.704, respectively, with overlapping confidence intervals.Conclusion: Quantifying the diastolic notch at 16-26 weeks of gestation did not provide any added benefit in terms of prediction of neonatal birth weight below the 10th or 5th percentile for gestational age, compared with uterine artery pulsatility index.","PeriodicalId":49400,"journal":{"name":"Ultraschall in Der Medizin","volume":" ","pages":"501-508"},"PeriodicalIF":3.1,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139724624","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

B-Mode Ultrasound and Contrast-Enhanced Ultrasound for the Detection of Splenic Involvement in Hodgkin Lymphoma: A Retrospective Analysis of 112 Patients. B型超声和对比增强超声检测霍奇金淋巴瘤脾脏受累：112例患者的回顾性分析。

IF 3.1 3区医学

Ultraschall in Der Medizin Pub Date : 2024-10-01 Epub Date: 2023-10-20 DOI: 10.1055/a-2173-2361

Hajo Findeisen, Christian Görg, Helen Winter, Corinna Trenker, Christoph F Dietrich, Amjad Alhyari, Friederike Eilsberger, Ehsan Safai Zadeh

{"title":"B-Mode Ultrasound and Contrast-Enhanced Ultrasound for the Detection of Splenic Involvement in Hodgkin Lymphoma: A Retrospective Analysis of 112 Patients.","authors":"Hajo Findeisen, Christian Görg, Helen Winter, Corinna Trenker, Christoph F Dietrich, Amjad Alhyari, Friederike Eilsberger, Ehsan Safai Zadeh","doi":"10.1055/a-2173-2361","DOIUrl":"10.1055/a-2173-2361","url":null,"abstract":"Purpose: To assess splenic involvement using B-mode ultrasound (US) and contrast-enhanced ultrasound (CEUS) compared with standard imaging with contrast-enhanced computerized tomography (CT) / 18-fluorodeoxyglucose positron-emission tomography (PET-CT) in patients with Hodgkin lymphoma.Materials and methods: Imaging data from 112 patients from 12/2003 to 10/2022 with histologically confirmed Hodgkin lymphoma during staging or relapse were analyzed for splenic lymphoma involvement. In all patients, standard imaging (CT/PET-CT), along with B-mode US and CEUS examinations, was performed. Evidence of focal splenic lesions (FSLs) found by imaging procedures was suggestive of splenic involvement. Follow-up imaging was performed in each patient after treatment, and treatment response indicated definitive splenic involvement.Results: 40 patients (35.7%) were identified by imaging modalities as having splenic involvement, which was confirmed by response during follow-up. Standard CT/PET-CT imaging detected splenic involvement in 36/112 patients (32.1%). FSLs were detected with B-mode US in 38 patients (33.9%) and CEUS in 36 patients (32.1%). The sensitivity of standard imaging, B-mode US, and CEUS was 90%, 95%, and 90%, respectively.Conclusion: B-mode US examination is a diagnostic method used in addition to standard imaging for the detection of splenic involvement in Hodgkin lymphoma. CEUS does not provide additional benefit compared to B-mode US and the standard reference procedure.","PeriodicalId":49400,"journal":{"name":"Ultraschall in Der Medizin","volume":" ","pages":"484-492"},"PeriodicalIF":3.1,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49684179","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

Contrast-enhanced ultrasound reveals perfusion differences between benign lipoma and semi-malignant atypical lipomatous tumors: A prospective clinical study. 超声造影显示良性脂肪瘤和半恶性非典型脂肪瘤之间的灌注差异：一项前瞻性临床研究。

IF 3.1 3区医学

Ultraschall in Der Medizin Pub Date : 2024-10-01 Epub Date: 2023-10-11 DOI: 10.1055/a-2189-5412

Paul Mick, Antonia Seeberger, Tobias Renkawitz, Burkhard Lehner, Mustafa Hariri, Christian Fischer, Julian Doll

{"title":"Contrast-enhanced ultrasound reveals perfusion differences between benign lipoma and semi-malignant atypical lipomatous tumors: A prospective clinical study.","authors":"Paul Mick, Antonia Seeberger, Tobias Renkawitz, Burkhard Lehner, Mustafa Hariri, Christian Fischer, Julian Doll","doi":"10.1055/a-2189-5412","DOIUrl":"10.1055/a-2189-5412","url":null,"abstract":"Purpose: Soft tissue tumors (STT) are difficult to diagnose accurately, and distinguishing between benign and malignant tumors is challenging. Lipoma is the most common STT, while atypical lipomatous tumors (ALT) can dedifferentiate into malignant lipomatous tumors like grade 1 liposarcoma and require more radical therapy. This study aims to investigate the potential of contrast-enhanced ultrasound (CEUS) to differentiate between lipoma and ALT based on tumor perfusion.Materials and methods: We prospectively examined 52 patients who were scheduled for biopsy for suspected lipoma or ALT. The CEUS examination was performed using SonoVue as a contrast agent to quantify tumor perfusion using VueBox V7.1 software. Peak enhancement (PE), rise time (RT), wash-in perfusion index (WiPI), and wash-out rate (WoR) were used to assess contrast enhancement inside the STT.Results: Among 50 tumors examined, 30 were lipomas, and 20 were ALTs. We found significant differences in perfusion between lipomas and ALTs (PE: 49.22 ± 45.75 a.u. vs. 165.67 ± 174.80; RT: 23.86 ± 20.47s vs. 10.72 ± 5.34 s; WiPI: 33.06 ± 29.94 dB vs. 107.21 ± 112.43 dB; WoR: 2.44 ± 3.70 dB/s vs. 12.75 ± 15.80 dB/s; p<.001). ROC analysis of PE resulted in a diagnostic accuracy of 74% for the detection of an ALT, and 77% for the detection of a lipoma.Conclusion: CEUS may enhance the differential diagnosis of benign lipomas and ALTs, with ALTs showing higher levels of perfusion. If larger prospective studies confirm these findings, CEUS could enhance diagnostic accuracy, guide surgical planning, and potentially reduce unnecessary treatments for patients presenting with ambiguous lipomatous tumors like lipoma or ALT.","PeriodicalId":49400,"journal":{"name":"Ultraschall in Der Medizin","volume":" ","pages":"509-518"},"PeriodicalIF":3.1,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41217741","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

Artificial intelligence in Ultrasound: Pearls and pitfalls in 2024. 超声波领域的人工智能：2024 年的珍珠和陷阱超声波领域的人工智能：2024 年的珍珠和陷阱。

IF 3.1 3区医学

Ultraschall in Der Medizin Pub Date : 2024-10-01 Epub Date: 2024-09-06 DOI: 10.1055/a-2368-9201

Bernardo Stefanini, Alice Giamperoli, Eleonora Terzi, Fabio Piscaglia

引用次数: 0

Fetal eye ultrasound: Normal anatomy, abnormal findings, and clinical impact. 胎儿眼部超声波：正常解剖、异常发现和临床影响。

IF 3.1 3区医学

Ultraschall in Der Medizin Pub Date : 2024-10-01 Epub Date: 2024-06-07 DOI: 10.1055/a-2318-5464

Karl-Oliver Kagan, Frank Tost, Kai-Sven Heling, Markus Hoopmann, Jiri Sonek, Rabih Chaoui

引用次数: 0

High-resolution ultrasound of the supra- and infraclavicular levels of the brachial plexus including the axillary nerve: imaging anatomy based on multiplanar reconstructions and technical guide. 包括腋神经在内的臂丛上和锁骨下水平的高分辨率超声：基于多平面重建的成像解剖和技术指南。

IF 3.1 3区医学

Ultraschall in Der Medizin Pub Date : 2024-10-01 Epub Date: 2023-12-27 DOI: 10.1055/a-2191-1893

Ralf Bruckmoser, Gregor Antoniadis, Moritz Katzensteiner, Christof Wutte, Julian Schlagheck, Fabian M Stuby, Martin Strowitzki, Iris Leister

{"title":"High-resolution ultrasound of the supra- and infraclavicular levels of the brachial plexus including the axillary nerve: imaging anatomy based on multiplanar reconstructions and technical guide.","authors":"Ralf Bruckmoser, Gregor Antoniadis, Moritz Katzensteiner, Christof Wutte, Julian Schlagheck, Fabian M Stuby, Martin Strowitzki, Iris Leister","doi":"10.1055/a-2191-1893","DOIUrl":"10.1055/a-2191-1893","url":null,"abstract":"Purpose: The diagnosis of peripheral nerve injuries remains challenging. Electromyography and nerve conduction studies do not allow precise localization of the lesion and differentiation between lesions in continuity and non-continuity in cases with complete axonotmesis. Improved ultrasound technology allows the examination of almost the entire peripheral nervous system. The complex sono-anatomy of the brachial plexus outside of the standard scanning planes makes it difficult to access this region.Methods: On the basis of the Visible Human Project of the National Institutes of Health (NIH), multiplanar reconstructions were created with the 3D Slicer open-source software in the various planes of the ultrasound cross-sections. The ultrasound examination itself and the guidance of the ultrasound probe in relation to the patient were recorded as video files and were synchronized through the audio channel. Subsequently, image matching was performed.Results: Multiplanar reconstructions facilitate visualization of anatomical regions which are challenging to access thereby enabling physicians to evaluate the course of the peripheral nerve of interest in dynamic conditions. Sonographically visible structures could be reproducibly identified in single-frame analysis.Conclusion: With precise knowledge of the ultrasound anatomy, the nerve structures of the brachial plexus can also be dynamically assessed almost in their entire course. An instructional video on ultrasound of the brachial plexus supplements this manuscript and has been published on Vimeo.com.","PeriodicalId":49400,"journal":{"name":"Ultraschall in Der Medizin","volume":" ","pages":"475-483"},"PeriodicalIF":3.1,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139049641","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

Diagnosis and management of heterotopic intramural pregnancy after in vitro fertilization: an eight-case series. 体外受精后异位壁内妊娠的诊断和处理：八例系列病例。

IF 3.1 3区医学

Ultraschall in Der Medizin Pub Date : 2024-08-26 DOI: 10.1055/a-2375-0319

Pei Cai, Mingxiang Zheng, Qian Wang, Yi Wen, Hui Chen, Fei Gong, Ge Lin, Xihong Li, Yan Ouyang

{"title":"Diagnosis and management of heterotopic intramural pregnancy after in vitro fertilization: an eight-case series.","authors":"Pei Cai, Mingxiang Zheng, Qian Wang, Yi Wen, Hui Chen, Fei Gong, Ge Lin, Xihong Li, Yan Ouyang","doi":"10.1055/a-2375-0319","DOIUrl":"https://doi.org/10.1055/a-2375-0319","url":null,"abstract":"Purpose: To analyze the ultrasound characteristics, clinical management, and pregnancy outcomes of heterotopic intramural pregnancies (HIMPs) after embryo transfer.Methods: This was a retrospective observational study of women who were diagnosed with HIMPs. The ultrasound characteristics, clinical treatment, and pregnancy outcomes of patients with HIMPs were evaluated.Results: Eight women with HIMPs were included. Among them, 6 patients were diagnosed by transvaginal sonography, and 2 patients were misdiagnosed with heterotopic interstitial pregnancy. The diagnostic accuracy was 75% (6/8). Five patients with HIMPs were diagnosed at the time of the initial scan (5+6-6+3 weeks). An intramural gestational sac was observed in all 6 patients, and an embryo with cardiac activity was detected in one patient on the follow-up scans. Intrauterine pregnancies (IUPs) were revealed in all 6 patients, and embryo(s) with cardiac activity were observed in 5 patients at the time of the initial diagnosis or later. The patients receiving expectant treatment all presented with bagel signs, while patients with embryos with cardiac activity all underwent surgery. Among the 6 diagnosed women, 1 patient was initially treated medically, 4 were treated expectantly, and 1 was treated surgically. Among the 6 diagnosed patients, the IUPs of 5 patients resulted in live infants.Conclusion: Single ET should be recommended to decrease the possibility of HIMP. An accurate diagnosis of HIMP was reached in most cases by detailed ultrasound early in the first trimester. Most IUPs of HIMPs seem to have good outcomes with timely and proper management. Expectant management might be a possible choice for nonviable intramural pregnancies.","PeriodicalId":49400,"journal":{"name":"Ultraschall in Der Medizin","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142074381","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

Contrast-enhanced ultrasonography for evaluating partial uterine necrosis after uterine artery embolization. 用于评估子宫动脉栓塞术后部分子宫坏死的对比增强超声波造影。

IF 3.1 3区医学

Ultraschall in Der Medizin Pub Date : 2024-08-01 Epub Date: 2024-01-26 DOI: 10.1055/a-2254-7567

Rong Hu, Tian Tian, Yangmei Shen, Jingxin Wang, Fan Yang

引用次数: 0