{"title":"Correlation of shear wave elastography with histopathological grade, tumor stage, and microvessel density in bladder cancer.","authors":"Gokhan Sahin, Hakan Gemalmaz, Mustafa Gok","doi":"10.4111/icu.20250068","DOIUrl":null,"url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the pathological correlation and prognostic significance of tissue stiffness measured by shear wave elastography (SWE) in bladder cancer.</p><p><strong>Materials and methods: </strong>Patients with microscopic or macroscopic hematuria diagnosed with bladder tumors were included. SWE measurements were performed using a Samsung Medison RS80A Prestige ultrasonography device, with ten valid measurements taken for each tumor. Tumor specimens were collected via transurethral resection (transurethral resection of the bladder tumor) for histopathological analysis. Microvessel density (MVD) was assessed by immunohistochemical staining with anti-CD34 antibody using the hot-spot method. Correlations between tissue stiffness, MVD and tumor stage and grade were analyzed, and receiver operating characteristic (ROC) analysis determined the optimal SWE cutoff for differentiating tumor characteristics.</p><p><strong>Results: </strong>A total of 65 bladder urothelial carcinoma patients were included in the study (43 high-grade, 22 low-grade). SWE and MVD were significantly higher in the high-grade group (p=0.001, p=0.002, respectively). ROC analysis showed SWE could differentiate tumor grades (area under ROC curve=0.837, p<0.001), with a cut-off of 4.25 kPa (74% sensitivity, 86% specificity). Stiffness was also higher in recurrence (p=0.007). A strong positive correlation between SWE and MVD was found (rho=0.767, p<0.001). SWE may be a reliable, non-invasive tool for assessing tumor grade and recurrence risk.</p><p><strong>Conclusions: </strong>SWE may be a reliable, non-invasive preoperative marker for bladder cancer, aiding in tumor characterization and clinical decision-making.</p>","PeriodicalId":14522,"journal":{"name":"Investigative and Clinical Urology","volume":"66 3","pages":"207-214"},"PeriodicalIF":2.1000,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12058542/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Investigative and Clinical Urology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.4111/icu.20250068","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"UROLOGY & NEPHROLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Purpose: To evaluate the pathological correlation and prognostic significance of tissue stiffness measured by shear wave elastography (SWE) in bladder cancer.
Materials and methods: Patients with microscopic or macroscopic hematuria diagnosed with bladder tumors were included. SWE measurements were performed using a Samsung Medison RS80A Prestige ultrasonography device, with ten valid measurements taken for each tumor. Tumor specimens were collected via transurethral resection (transurethral resection of the bladder tumor) for histopathological analysis. Microvessel density (MVD) was assessed by immunohistochemical staining with anti-CD34 antibody using the hot-spot method. Correlations between tissue stiffness, MVD and tumor stage and grade were analyzed, and receiver operating characteristic (ROC) analysis determined the optimal SWE cutoff for differentiating tumor characteristics.
Results: A total of 65 bladder urothelial carcinoma patients were included in the study (43 high-grade, 22 low-grade). SWE and MVD were significantly higher in the high-grade group (p=0.001, p=0.002, respectively). ROC analysis showed SWE could differentiate tumor grades (area under ROC curve=0.837, p<0.001), with a cut-off of 4.25 kPa (74% sensitivity, 86% specificity). Stiffness was also higher in recurrence (p=0.007). A strong positive correlation between SWE and MVD was found (rho=0.767, p<0.001). SWE may be a reliable, non-invasive tool for assessing tumor grade and recurrence risk.
Conclusions: SWE may be a reliable, non-invasive preoperative marker for bladder cancer, aiding in tumor characterization and clinical decision-making.
期刊介绍:
Investigative and Clinical Urology (Investig Clin Urol, ICUrology) is an international, peer-reviewed, platinum open access journal published bimonthly. ICUrology aims to provide outstanding scientific and clinical research articles, that will advance knowledge and understanding of urological diseases and current therapeutic treatments. ICUrology publishes Original Articles, Rapid Communications, Review Articles, Special Articles, Innovations in Urology, Editorials, and Letters to the Editor, with a focus on the following areas of expertise:
• Precision Medicine in Urology
• Urological Oncology
• Robotics/Laparoscopy
• Endourology/Urolithiasis
• Lower Urinary Tract Dysfunction
• Female Urology
• Sexual Dysfunction/Infertility
• Infection/Inflammation
• Reconstruction/Transplantation
• Geriatric Urology
• Pediatric Urology
• Basic/Translational Research
One of the notable features of ICUrology is the application of multimedia platforms facilitating easy-to-access online video clips of newly developed surgical techniques from the journal''s website, by a QR (quick response) code located in the article, or via YouTube. ICUrology provides current and highly relevant knowledge to a broad audience at the cutting edge of urological research and clinical practice.