1
|
Su S, Ye J, Ke H, Zhong H, Lyu G, Xu Z. Multimodal ultrasound imaging: a method to improve the accuracy of sentinel lymph node diagnosis in breast cancer. Front Oncol 2024; 14:1366876. [PMID: 38590661 PMCID: PMC10999636 DOI: 10.3389/fonc.2024.1366876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Accepted: 03/08/2024] [Indexed: 04/10/2024] Open
Abstract
Aim This study assessed the utility of multimodal ultrasound in enhancing the accuracy of breast cancer sentinel lymph node (SLN) assessment and compared it with single-modality ultrasound. Methods Preoperative examinations, including two-dimensional ultrasound (2D US), intradermal contrast-enhanced ultrasound (CEUS), intravenous CEUS, shear-wave elastography (SWE), and surface localization, were conducted on 86 SLNs from breast cancer patients. The diagnostic performance of single and multimodal approaches for detecting metastatic SLNs was compared to postoperative pathological results. Results Among the 86 SLNs, 29 were pathologically diagnosed as metastatic, and 57 as non-metastatic. Single-modality ultrasounds had AUC values of 0.826 (intradermal CEUS), 0.705 (intravenous CEUS), 0.678 (2D US), and 0.677 (SWE), respectively. Intradermal CEUS significantly outperformed the other methods (p<0.05), while the remaining three methods had no statistically significant differences (p>0.05). Multimodal ultrasound, combining intradermal CEUS, intravenous CEUS, 2D US, and SWE, achieved an AUC of 0.893, with 86.21% sensitivity and 84.21% specificity. The DeLong test confirmed that multimodal ultrasound was significantly better than the four single-modal ultrasound methods (p<0.05). Decision curve analysis and clinical impact curves demonstrated the superior performance of multimodal ultrasound in identifying high-risk SLN patients. Conclusion Multimodal ultrasound improves breast cancer SLN identification and diagnostic accuracy.
Collapse
Affiliation(s)
- Shanshan Su
- Department of Ultrasound in Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Jiayi Ye
- Department of Radiology, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Helin Ke
- Department of Ultrasound in Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Huohu Zhong
- Department of Ultrasound in Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Guorong Lyu
- Department of Ultrasound in Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Zhirong Xu
- Department of Ultrasound in Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| |
Collapse
|
2
|
Kumar A, Kulkarni S, Pandey A, Mutalik S, Subramanian S. Nano-tracers for sentinel lymph node detection: current trends in technique and application. Nanomedicine (Lond) 2024; 19:59-77. [PMID: 38197375 DOI: 10.2217/nnm-2023-0271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2024] Open
Abstract
Sentinel lymph node (SLN) detection and biopsy is a critical staging component for several cancers. Apart from established methods using dyes or radiolabeled colloids, newer techniques are emerging, like near-infrared fluorescent compounds, targeted molecular radiopharmaceuticals and magnetic nano-tracers. In the overview section of this review, we categorize SLN detection tracers based on their principle of use. We discuss the merits of existing tracers and provide a glimpse of in-development formulations. A subsequent clinical section explores the expanded role of SLN detection in management of various cancers, citing current medical guidelines and the leading conclusions of long-term clinical trials. The concluding section tries to provide a perspective of promising developments and the work required to bring them to clinical fruition.
Collapse
Affiliation(s)
- Anuj Kumar
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - Sanjay Kulkarni
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Abhijeet Pandey
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Srinivas Mutalik
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Suresh Subramanian
- Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Mumbai, 400085, India
| |
Collapse
|
3
|
Yang Q, Fu Y, Wang J, Yang H, Zhang X. Advantages of contrast-enhanced ultrasound in the localization and diagnostics of sentinel lymph nodes in breast cancer. J Zhejiang Univ Sci B 2023; 24:985-997. [PMID: 37961801 PMCID: PMC10646391 DOI: 10.1631/jzus.b2300019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 05/21/2023] [Indexed: 11/15/2023]
Abstract
Sentinel lymph nodes (SLNs) are the first station of lymph nodes that extend from the breast tumor to the axillary lymphatic drainage. The pathological status of these LNs can predict that of the entire axillary lymph node. Therefore, the accurate identification of SLNs is necessary for sentinel lymph node biopsy (SLNB) to replace axillary lymph node dissection (ALND). The quality of life and prognosis of breast cancer patients are related to proper surgical treatment after the precise identification of SLNs. Some of the SLN tracers that have been identified include radioisotope, nano-carbon, indocyanine green (ICG), and methylene blue (MB). However, these tracers have certain limitations, such as pigmentation, radiation dangers, and the requirement for costly detection equipment. Ultrasound contrast agents (UCAs) have good specificity and sensitivity, and thus can compensate for some shortcomings of the mentioned tracers. This technique is also being applied to SLNB in patients with breast cancer, and can even provide an initial judgment on SLN status. Contrast-enhanced ultrasound (CEUS) has the advantages of high distinguishability, simple operation, no radiation harm, low cost, and accurate localization; therefore, it is expected to replace the traditional biopsy methods. In addition, it can significantly enhance the accuracy of SLN localization and shorten the operation time.
Collapse
Affiliation(s)
- Qiuhui Yang
- Department of Breast Surgery, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China
- Postgraduate Training Base Alliance of Wenzhou Medical University (Zhejiang Cancer Hospital), Hangzhou 310022, China
| | - Yeqin Fu
- Department of Breast Surgery, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China
- Postgraduate Training Base Alliance of Wenzhou Medical University (Zhejiang Cancer Hospital), Hangzhou 310022, China
| | - Jiaxuan Wang
- The First Clinical Medical College, Shanxi Medical University, Jinzhong 030600, China
| | - Hongjian Yang
- Department of Breast Surgery, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China.
| | - Xiping Zhang
- Department of Breast Surgery, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou 310022, China. ,
| |
Collapse
|
4
|
Liu X, Wang M, Wang Q, Zhang H. Diagnostic value of contrast-enhanced ultrasound for sentinel lymph node metastasis in breast cancer: an updated meta-analysis. Breast Cancer Res Treat 2023; 202:221-231. [PMID: 37500963 DOI: 10.1007/s10549-023-07063-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 07/16/2023] [Indexed: 07/29/2023]
Abstract
PURPOSE The status of sentinel lymph nodes (SLN) is an important factor in determining the stage of breast cancer (BC) and the surgical procedure, and also a biomarker of the BC prognosis. This meta-analysis was performed to investigate the diagnostic value of contrast-enhanced ultrasound (CEUS) for SLN metastasis. METHODS A systematic search was conducted for relevant articles published in the PubMed, Embase, Web of Science, OVID databases, and Cochrane Library from inception to March 2023. We calculated the sensitivity, specificity, positive and negative likelihood ratio (PLR; NLR), diagnostic odds ratio (DOR), and summary receiver operator characteristic (SROC) curve to evaluate the diagnostic efficacy of CEUS in SLN metastasis. Subgroup analysis was also performed to investigate potential sources of heterogeneity. RESULTS A total of 12 studies with 1525 patients were included in this meta-analysis. The overall pooled sensitivity and specificity of CEUS in the diagnosis of SLN metastasis were 0.91 (95% CI: 0.84-0.95) and 0.86 (95% CI: 0.78-0.92). The PLR, NLR, and DOR were 6.51 (95% CI: 4.09-10.36), 0.11 (95% CI: 0.07-0.18), and 59.43 (95% CI: 33.27-106.17), respectively, and the area under the SROC curve was determined to be 0.95 (95%CI: 0.92-0.96), all showing excellent diagnostic value. In the subgroup analysis, percutaneous CEUS was more sensitive than intravenous CEUS in the diagnosis of SLN metastases (0.92 versus 0.82, p < 0.05). CONCLUSION CEUS, especially percutaneous CEUS, is a reliable imaging technique for diagnosing SLN metastasis and providing important information in the stage management of breast cancer.
Collapse
Affiliation(s)
- Xiao Liu
- Department of Ultrasound, Shandong Provincial Hospital affiliated to Shandong First Medical University, No. 324 Jing 5 Rd, Jinan, Shandong, 250021, People's Republic of China
| | - Meihuan Wang
- Department of Ultrasound, Shandong Provincial Hospital affiliated to Shandong First Medical University, No. 324 Jing 5 Rd, Jinan, Shandong, 250021, People's Republic of China
| | - Qian Wang
- Department of Ultrasound, Shandong Provincial Hospital affiliated to Shandong First Medical University, No. 324 Jing 5 Rd, Jinan, Shandong, 250021, People's Republic of China.
| | - Huawei Zhang
- Department of Ultrasound, Shandong Provincial Hospital affiliated to Shandong First Medical University, No. 324 Jing 5 Rd, Jinan, Shandong, 250021, People's Republic of China.
| |
Collapse
|
5
|
Barbagianni MS, Gouletsou PG. Modern Imaging Techniques in the Study and Disease Diagnosis of the Mammary Glands of Animals. Vet Sci 2023; 10:vetsci10020083. [PMID: 36851387 PMCID: PMC9965774 DOI: 10.3390/vetsci10020083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/12/2023] [Accepted: 01/20/2023] [Indexed: 01/25/2023] Open
Abstract
The study of the structure and function of the animals' mammary glands is of key importance, as it reveals pathological processes at their onset, thus contributing to their immediate treatment. The most frequently studied mammary diseases are mastitis in cows and ewes and mammary tumours in dogs and cats. Various imaging techniques such as computed tomography, positron emission tomography, magnetic resonance imaging, and ultrasonographic techniques (Doppler, contrast-enchanced, three-dimensional and elastography) are available and can be applied in research or clinical practice in order to evaluate possible abnormalities in mammary glands, as well as to assist in the differential diagnosis. In this review, the above imaging technologies are described, and the perspectives of each method are highlighted. It is inferred that ultrasonographic modalities are the most frequently used imaging techniques for the diagnosis of clinical or subclinical mastitis and treatment guidance on a farm. In companion animals, a combination of imaging techniques should be applied for a more accurate diagnosis of mammary tumours. In any case, the confirmation of the diagnosis is provided by laboratory techniques.
Collapse
|
6
|
Zhu Y, Jia Y, Pang W, Duan Y, Chen K, Nie F. Ultrasound contrast-enhanced patterns of sentinel lymph nodes: predictive value for nodal status and metastatic burden in early breast cancer. Quant Imaging Med Surg 2023; 13:160-170. [PMID: 36620166 PMCID: PMC9816714 DOI: 10.21037/qims-22-234] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 10/07/2022] [Indexed: 11/21/2022]
Abstract
Background In the post-Z0011 era, sentinel lymph node (SLN) status and metastatic burden determine whether axillary management entails conservative sentinel lymph node biopsy (SLNB) or radical axillary lymph node dissection (ALND) in breast cancer patients. However, SLN status and metastatic burden cannot be evaluated preoperatively in clinical practice. This study explored the predictive value of contrast-enhanced ultrasound (CEUS) patterns of SLN to assess the nodal status and metastatic burden in early breast cancer patients. Methods A retrospective study was conducted on 88 consecutive patients who were diagnosed with clinical T1-2N0 breast cancer between December 2020 and November 2021 at the Lanzhou University Second Hospital and scheduled for SLNB. Preoperative CEUS was performed to confirm the location and enhancement pattern of the SLN, and the conventional ultrasonic characteristics of the primary breast lesions and SLN were recorded. Intraoperative localized SLN and postoperative pathological results were used as the gold standard for comparison with preoperative ultrasound findings. Results CEUS successfully identified at least 1 SLN in 88 patients, with a total of 118 SLNs identified in the entire cohort. Univariate analysis showed that lesion size, blood flow grade, SLN longitudinal diameter, cortical thickness, and enhancement pattern were significant predictive features of SLN metastasis. Further multiple regression analysis indicated that the enhancement pattern of the SLN was an independent risk factor for SLN metastasis, with a sensitivity and a specificity of 84.2% (32/38) and 80.0% (40/50), respectively. Meanwhile, the SLN enhancement pattern could predict the lymph node metastasis burden (P<0.001). In patients presenting with a type I (homogeneous enhancement) or type II (heterogeneous enhancement) SLN, 91.5% (65/71) had ≤2 positive SLNs, whereas in patients with a type III (no enhancement) SLN, 70.6% (12/17) had >2 metastatic nodes. Conclusions The contrast-enhanced pattern of the SLN is an independent risk factor for SLN status. Patients presenting with a type I or type II SLN enhanced pattern are unlikely to have high-burden metastases detected at their final surgical treatment and omission of ALND may be appropriate.
Collapse
Affiliation(s)
- Yangyang Zhu
- Ultrasound Medicine Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Yingying Jia
- Ultrasound Medicine Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Wenjing Pang
- Ultrasound Medicine Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Ying Duan
- Ultrasound Medicine Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Kundi Chen
- Ultrasound Medicine Center, Lanzhou University Second Hospital, Lanzhou, China
| | - Fang Nie
- Ultrasound Medicine Center, Lanzhou University Second Hospital, Lanzhou, China;,Gansu Province Clinical Research Center for Ultrasonography, Lanzhou, China
| |
Collapse
|
7
|
Luo Y, Chen J, Feng L, Cao W, Wu H, Ma M, He F, Luo J, Wu C, Liu J, Chen Q, Luo J. Study on Sentinel Lymph Node and Its Lymphatic Drainage Pattern of Breast Cancer by Contrast-Enhanced Ultrasound. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2022; 41:2727-2737. [PMID: 35128699 PMCID: PMC9790426 DOI: 10.1002/jum.15957] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 01/19/2022] [Accepted: 01/27/2022] [Indexed: 06/14/2023]
Abstract
OBJECTIVES Sentinel lymph node (SLN) and its lymphatic drainage pattern (LDP) of breast cancer were studied by contrast-enhanced ultrasound (CEUS). METHODS From July 2017 to December 2019, patients with SLN localization of breast cancer in Sichuan Academy of Medical Sciences·Sichuan Provincial People's Hospital were selected. The sentinel lymph system of breast cancer was observed by CEUS before both operation and blue staining in the surgery. The location, number, and route of sentinel lymphatic channel (SLC) were recorded, along with the number, size, and the depth from skin of SLN. LDPs were summarized according to these basic characteristics of SLC and SLN. RESULTS A total of 368 cases were included; 465 SLCs and 423 SLNs were detected. Most of the SLCs were originated from the outer upper quadrant of areola. Eleven LDPs were found, including 31 subtypes of LDPs. There were 6 cases of type A (1.63%), 15 cases of type B (4.08%), 223 cases of type C (57.88%), 38 cases of type D (10.33%), 2 cases of type E (0.54%), 3 cases of type F (0.82%), 50 cases of type G (13.59%), 30 cases of type H (8.15%), 2 cases of type I (0.54%), 6 cases of type J (1.63%), and 3 cases of type K (0.82%). CONCLUSIONS The most common LDP of breast cancer was one SLC originated from the upper quadrant of areola with one SLN. CEUS can identify the LDP before surgery to reduce the false negative rate of SLN biopsy.
Collapse
Affiliation(s)
- Yunhao Luo
- Ultrasound Department, Qingbaijiang Maternal and Child Health Hospital, West China Second HospitalSichuan UniversityChengduChina
| | - Jie Chen
- Department of Breast Surgery, Sichuan Academy of Medical SciencesSichuan Provincial People's HospitalChengduChina
| | - Liting Feng
- Ultrasound Department, Sichuan Academy of Medical SciencesSichuan Provincial People's HospitalChengduChina
| | - Wenbin Cao
- Ultrasound Department, Sichuan Academy of Medical SciencesSichuan Provincial People's HospitalChengduChina
| | - Hao Wu
- Ultrasound Department, Sichuan Academy of Medical SciencesSichuan Provincial People's HospitalChengduChina
| | - Miao Ma
- Ultrasound DepartmentThe second people's Hospital in Xindu District of ChengduChengduChina
| | - Fangting He
- West China School of Public Health, West China Fourth HospitalSichuan UniversityChengduChina
| | - Jing Luo
- Department of Breast Surgery, Sichuan Academy of Medical SciencesSichuan Provincial People's HospitalChengduChina
| | - Chihua Wu
- Department of Breast Surgery, Sichuan Academy of Medical SciencesSichuan Provincial People's HospitalChengduChina
| | - Jinping Liu
- Department of Breast Surgery, Sichuan Academy of Medical SciencesSichuan Provincial People's HospitalChengduChina
| | - Qin Chen
- Ultrasound Department, Sichuan Academy of Medical SciencesSichuan Provincial People's HospitalChengduChina
| | - Jun Luo
- Ultrasound Department, Sichuan Academy of Medical SciencesSichuan Provincial People's HospitalChengduChina
| |
Collapse
|
8
|
Yuan Q, Song C, Tian Y, Chen N, He X, Wang Y, Han P. Diagnostic Significance of 3D Automated Breast Volume Scanner in a Combination with Contrast-Enhanced Ultrasound for Breast Cancer. BIOMED RESEARCH INTERNATIONAL 2022; 2022:3199884. [PMID: 35968241 PMCID: PMC9365610 DOI: 10.1155/2022/3199884] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 06/28/2022] [Accepted: 07/11/2022] [Indexed: 11/17/2022]
Abstract
The incidence of cancer is increasing today, particularly lung and chest cancer. Employing novel methods to detect cancer in its earliest stages and discover painless, noninvasive treatments are urgently needed. The goal of the proposed study is to investigate the value of automated breast volume scanning (ABUS) in conjunction with contrast-enhanced ultrasonography (CEUS) in properly diagnosing breast cancer in its early stages and the effectiveness of neoadjuvant chemotherapy (NAC) in treating the disease. For the research study, information on 98 patients who had NAC and surgery in the breast surgery department of the Shaanxi Provincial Cancer Hospital has been gathered. All patients have received four cycles of NAC and underwent conventional ultrasound (HUSS), CEUS, ABUS, and pathological examination. At the same time, receiver operating characteristic (ROC) curve analysis, single factor, multiple linear regression, and other methods have also been used to analyze the diagnostic efficacy of breast cancer and NAC efficacy evaluation results. The study of this paper is totally based on the data collected from Shaanxi Provincial Cancer Hospital. The statistical and computational analyses are performed on the data collected for drawing inferences. When the findings are compared to the results of the pathological examination, HUSS has demonstrated a significant distinction between benign and malignant diagnoses with a statistical value of P < 0.05.ABUS combined with CEUS has shown no considerable differences in correlation study. Except for negative likelihood ratio, the diagnostic performance indexes of CEUS+ ABUS are substantially higher than HHUS with P < 0.05. ROC curve analysis is also performed which shows that CEUS and ABUS combination has higher precision in the analysis of breast cancer. ABUS pooled with CEUS shows great application value in the judgment of breast cancer as per the results obtained from the statistical analysis on data of 98 patients.
Collapse
Affiliation(s)
- Quan Yuan
- Department of Ultrasound, Shaanxi Provincial Cancer Hospital, Xi'an 710061, China
| | - Canxu Song
- Department of Ultrasound, Shaanxi Provincial Cancer Hospital, Xi'an 710061, China
| | - Yan Tian
- Department of Ultrasound, Shaanxi Provincial Cancer Hospital, Xi'an 710061, China
| | - Nan Chen
- Department of Breast Surgery, Shaanxi Provincial Cancer Hospital, Xi'an 710061, China
| | - Xing He
- Department of Ultrasound, Shaanxi Provincial Cancer Hospital, Xi'an 710061, China
| | - Ying Wang
- Department of Ultrasound, Shaanxi Provincial Cancer Hospital, Xi'an 710061, China
| | - Pihua Han
- Department of Breast Surgery, Shaanxi Provincial Cancer Hospital, Xi'an 710061, China
| |
Collapse
|
9
|
Contrast-Enhanced Ultrasound for Precise Sentinel Lymph Node Biopsy in Women with Early Breast Cancer: A Preliminary Study. Diagnostics (Basel) 2021; 11:diagnostics11112104. [PMID: 34829452 PMCID: PMC8624576 DOI: 10.3390/diagnostics11112104] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/04/2021] [Accepted: 11/05/2021] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Sentinel lymph node biopsy (SLNB), as a common method for axillary staging of early breast cancer, has gradually attracted people's attention to the false-negative rate and postoperative complications. The aim of the study is to investigate the clinical value of preoperative contrast-enhanced ultrasound (CEUS) for intraoperative SLNB in early breast cancer patients. METHODS A total of 201 patients scheduled for SLNB from September 2018 to April 2021 were collected consecutively. Preoperative CEUS was used to identify sentinel lymph nodes (SLN) and lymphatic drainage in breast cancer patients. RESULTS The SLN identification rate of CEUS was 93.0% (187/201) and four lymphatic drainage patterns were found: single LC to single SLN (70.0%), multiple LCs to single SLN (8.0%), single LC to multiple SLNs (10.2%), and multiple LCs to multiple SLNs (11.8%). The Sen, Spe, PPV, NPV, AUC of CEUS, US and CEUS + US in diagnosis of SLNs were 82.7%, 80.4%, 73.8%, 87.4%, 0.815; 70.7%, 77.7%, 68.0%, 79.8%, 0.742; and 86.7%, 77.7%, 72.2%, 89.7%, 0.822, respectively. There was no statistically significant difference between the diagnostic performance of CEUS and CEUS + US (p = 0.630). CONCLUSIONS CEUS can be used to preoperatively assess the lymphatic drainage patterns and the status of the SLNs in early breast cancer to assist precision intraoperative SLNB.
Collapse
|