Abdominal Radiology最新文献

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Application of ultrasound in early prediction of delayed graft function after renal transplantation. 超声波在早期预测肾移植后移植功能延迟中的应用。
IF 2.3 3区 医学
Abdominal Radiology Pub Date : 2024-10-01 Epub Date: 2024-05-17 DOI: 10.1007/s00261-024-04353-1
Jing Jia, Bei Wang, Yixuan Wang, Yue Han
{"title":"Application of ultrasound in early prediction of delayed graft function after renal transplantation.","authors":"Jing Jia, Bei Wang, Yixuan Wang, Yue Han","doi":"10.1007/s00261-024-04353-1","DOIUrl":"10.1007/s00261-024-04353-1","url":null,"abstract":"<p><p>Kidney transplantation is currently the most effective treatment for end-stage renal disease. Delayed graft function (DGF) is one of the most common complications after renal transplantation and is a significant complication affecting graft function and the survival time of transplanted kidneys. Therefore, early diagnosis of DGF is crucial for guiding post-transplant care and improving long-term patient survival. This article will summarize the pathological basis and clinical characteristics of DGF after kidney transplantation, with a focus on contrast-enhanced ultrasound. It will analyze the current application status of ultrasound technology in DGF diagnosis and provide a comprehensive review of the clinical applications of ultrasound technology in this field, serving as a reference for the further application of ultrasound technology in kidney transplantation.</p>","PeriodicalId":7126,"journal":{"name":"Abdominal Radiology","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140955450","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
Emerging and anticipated innovations in prostate cancer MRI and their impact on patient care. 前列腺癌磁共振成像的新兴和预期创新及其对患者护理的影响。
IF 2.3 3区 医学
Abdominal Radiology Pub Date : 2024-10-01 Epub Date: 2024-06-14 DOI: 10.1007/s00261-024-04423-4
Eduardo Thadeu de Oliveira Correia, Atallah Baydoun, Qiubai Li, Daniel N Costa, Leonardo Kayat Bittencourt
{"title":"Emerging and anticipated innovations in prostate cancer MRI and their impact on patient care.","authors":"Eduardo Thadeu de Oliveira Correia, Atallah Baydoun, Qiubai Li, Daniel N Costa, Leonardo Kayat Bittencourt","doi":"10.1007/s00261-024-04423-4","DOIUrl":"10.1007/s00261-024-04423-4","url":null,"abstract":"<p><p>Prostate cancer (PCa) remains the leading malignancy affecting men, with over 3 million men living with the disease in the US, and an estimated 288,000 new cases and almost 35,000 deaths in 2023 in the United States alone. Over the last few decades, imaging has been a cornerstone in PCa care, with a crucial role in the detection, staging, and assessment of PCa recurrence or by guiding diagnostic or therapeutic interventions. To improve diagnostic accuracy and outcomes in PCa care, remarkable advancements have been made to different imaging modalities in recent years. This paper focuses on reviewing the main innovations in the field of PCa magnetic resonance imaging, including MRI protocols, MRI-guided procedural interventions, artificial intelligence algorithms and positron emission tomography, which may impact PCa care in the future.</p>","PeriodicalId":7126,"journal":{"name":"Abdominal Radiology","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11390809/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141320349","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
Utility of dual-energy CT and advanced multiparametric MRI based imaging biomarkers of pancreatic fibrosis in grading the severity of chronic pancreatitis. 基于双能 CT 和先进的多参数 MRI 的胰腺纤维化成像生物标记物在慢性胰腺炎严重程度分级中的实用性。
IF 2.3 3区 医学
Abdominal Radiology Pub Date : 2024-10-01 Epub Date: 2024-06-20 DOI: 10.1007/s00261-024-04443-0
Mohak Narang, Anup Singh, Soumya Jagannath Mahapatra, Deepak Gunjan, Sanjay Sharma, Deep Narayan Srivastava, Rajni Yadav, Nihar Ranjan Dash, Virinder Kumar Bansal, Ravindra Mohan Pandey, Pramod Kumar Garg, Kumble Seetharama Madhusudhan
{"title":"Utility of dual-energy CT and advanced multiparametric MRI based imaging biomarkers of pancreatic fibrosis in grading the severity of chronic pancreatitis.","authors":"Mohak Narang, Anup Singh, Soumya Jagannath Mahapatra, Deepak Gunjan, Sanjay Sharma, Deep Narayan Srivastava, Rajni Yadav, Nihar Ranjan Dash, Virinder Kumar Bansal, Ravindra Mohan Pandey, Pramod Kumar Garg, Kumble Seetharama Madhusudhan","doi":"10.1007/s00261-024-04443-0","DOIUrl":"10.1007/s00261-024-04443-0","url":null,"abstract":"<p><strong>Purpose: </strong>To non-invasively quantify pancreatic fibrosis and grade severity of chronic pancreatitis (CP) on dual-energy CT (DECT) and multiparametric MRI (mpMRI).</p><p><strong>Methods: </strong>We included 72 patients (mean age:30years; 59 men) with suspected or confirmed CP from December 2019 to December 2021 graded as equivocal(n = 20), mild(n = 18), and moderate-marked(n = 34) using composite imaging and endoscopic ultrasound criteria. Study patients underwent multiphasic DECT and mpMRI of the abdomen. Normalized iodine concentration(NIC) and fat fraction(FF) on 6-minute delayed DECT, and T1 relaxation time(T1Rt), extracellular volume fraction(ECVf), intravoxel incoherent motion-based perfusion fraction(PF), and magnetization transfer ratio(MTR) on mpMRI of pancreas were compared. 20 renal donors(for DECT) and 20 patients with renal mass(for mpMRI) served as controls.</p><p><strong>Results: </strong>NIC of pancreas in controls and progressive grades of CP were 0.24 ± 0.05, 0.80 ± 0.18, 1.06 ± 0.23, 1.40 ± 0.36, FF were 9.28 ± 5.89, 14.19 ± 5.29, 17.31 ± 5.99, 29.32 ± 12.22, T1Rt were 590.11 ± 61.13, 801.93 ± 211.01, 1006.79 ± 352.18, 1388.01 ± 312.23ms, ECVf were 0.07 ± 0.03, 0.30 ± 0.12, 0.41 ± 0.12, 0.53 ± 0.13, PF were 0.38 ± 0.04, 0.28 ± 0.07, 0.25 ± 0.09, 0.21 ± 0.05 and MTR were 0.12 ± 0.03, 0.15 ± 0.06, 0.21 ± 0.07, 0.26 ± 0.06, respectively. There were significant differences for all quantitative parameters between controls and mild CP; for NIC, PF, and ECVf between controls and progressive CP grades (p < 0.05). Area under curve for NIC, FF, T1Rt, ECVf, PF, and MTR in differentiating controls and mild CP were 1.00, 0.86, 0.95, 1.00, 0.90 and 0.84 respectively and for NIC, FF, ECVf and PF in differentiating controls and equivocal CP were 1.00, 0.76, 0.95 and 0.92 respectively.</p><p><strong>Conclusion: </strong>DECT and mpMRI were useful in quantifying pancreatic fibrosis and grading the severity of CP. NIC was the most accurate marker.</p>","PeriodicalId":7126,"journal":{"name":"Abdominal Radiology","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141426063","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
Interpretable machine learning based on CT-derived extracellular volume fraction to predict pathological grading of hepatocellular carcinoma. 基于 CT 导出的细胞外体积分数的可解释机器学习,用于预测肝细胞癌的病理分级。
IF 2.3 3区 医学
Abdominal Radiology Pub Date : 2024-10-01 Epub Date: 2024-05-04 DOI: 10.1007/s00261-024-04313-9
Jie Li, Linxuan Zou, Heng Ma, Jifu Zhao, Chengyan Wang, Jun Li, Guangchao Hu, Haoran Yang, Beizhong Wang, Donghao Xu, Yuanhao Xia, Yi Jiang, Xingyue Jiang, Naixuan Li
{"title":"Interpretable machine learning based on CT-derived extracellular volume fraction to predict pathological grading of hepatocellular carcinoma.","authors":"Jie Li, Linxuan Zou, Heng Ma, Jifu Zhao, Chengyan Wang, Jun Li, Guangchao Hu, Haoran Yang, Beizhong Wang, Donghao Xu, Yuanhao Xia, Yi Jiang, Xingyue Jiang, Naixuan Li","doi":"10.1007/s00261-024-04313-9","DOIUrl":"10.1007/s00261-024-04313-9","url":null,"abstract":"<p><strong>Purpose: </strong>To develop a non-invasive auxiliary assessment method based on CT-derived extracellular volume (ECV) to predict the pathological grading (PG) of hepatocellular carcinoma (HCC).</p><p><strong>Methods: </strong>The study retrospectively analyzed 238 patients who underwent HCC resection surgery between January 2013 and April 2023. Six machine learning algorithms were employed to construct predictive models for HCC PG: logistic regression, extreme gradient boosting, Light Gradient Boosting Machine (LightGBM), random forest, adaptive boosting, and Gaussian naive Bayes. Model performance was evaluated using receiver operating characteristic curve analysis, including area under the curve (AUC), sensitivity, specificity, accuracy, positive predictive value, negative predictive value, and F1 score. Calibration plots were used for visual evaluation of model calibration. Clinical decision curve analysis was performed to assess potential clinical utility by calculating net benefit.</p><p><strong>Results: </strong>166 patients from Hospital A were allocated to the training set, while 72 patients from Hospital B (constituting 30.25% of the total sample) were assigned to the test set. The model achieved an AUC of 1.000 (95%CI: 1.000-1.000) in the training set and 0.927 (95%CI: 0.837-0.999) in the validation set, respectively. Ultimately, the model achieved an AUC of 0.909 (95%CI: 0.837-0.980) in the test set, with an accuracy of 0.778, sensitivity of 0.906, specificity of 0.789, negative predictive value of 0.556, and F1 score of 0.908.</p><p><strong>Conclusion: </strong>This study successfully developed and validated a non-invasive auxiliary assessment method based on CT-derived ECV to predict the HCC PG, providing important supplementary information for clinical decision-making.</p>","PeriodicalId":7126,"journal":{"name":"Abdominal Radiology","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140847023","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
A combined model based on radiomics features of Sonazoid contrast-enhanced ultrasound in the Kupffer phase for the diagnosis of well-differentiated hepatocellular carcinoma and atypical focal liver lesions: a prospective, multicenter study. 基于Kupffer期Sonazoid造影剂增强超声波放射组学特征的联合模型,用于诊断分化良好的肝细胞癌和非典型肝局灶病变:一项前瞻性多中心研究。
IF 2.3 3区 医学
Abdominal Radiology Pub Date : 2024-10-01 Epub Date: 2024-05-14 DOI: 10.1007/s00261-024-04253-4
Zhen Wang, Jundong Yao, Xiang Jing, Kaiyan Li, ShiChun Lu, Hong Yang, Hong Ding, Kai Li, Wen Cheng, Guangzhi He, Tianan Jiang, Fangyi Liu, Jie Yu, Zhiyu Han, Zhigang Cheng, Shuilian Tan, Zhen Wang, Erpeng Qi, Shuo Wang, YiQiong Zhang, Lu Li, Xiaocong Dong, Ping Liang, Xiaoling Yu
{"title":"A combined model based on radiomics features of Sonazoid contrast-enhanced ultrasound in the Kupffer phase for the diagnosis of well-differentiated hepatocellular carcinoma and atypical focal liver lesions: a prospective, multicenter study.","authors":"Zhen Wang, Jundong Yao, Xiang Jing, Kaiyan Li, ShiChun Lu, Hong Yang, Hong Ding, Kai Li, Wen Cheng, Guangzhi He, Tianan Jiang, Fangyi Liu, Jie Yu, Zhiyu Han, Zhigang Cheng, Shuilian Tan, Zhen Wang, Erpeng Qi, Shuo Wang, YiQiong Zhang, Lu Li, Xiaocong Dong, Ping Liang, Xiaoling Yu","doi":"10.1007/s00261-024-04253-4","DOIUrl":"10.1007/s00261-024-04253-4","url":null,"abstract":"<p><strong>Objective: </strong>The objective of this study was to develop a combined model based on radiomics features of Sonazoid contrast-enhanced ultrasound (CEUS) during the Kupffer phase and to evaluate its value in differentiating well-differentiated hepatocellular carcinoma (w-HCC) from atypical benign focal liver lesions (FLLs).</p><p><strong>Methods: </strong>A total of 116 patients with preoperatively Sonazoid-CEUS confirmed w-HCC or benign FLL were selected from a prospective multiple study on the clinical application of Sonazoid in FLLs conducted from August 2020 to March 2021. According to the randomization principle, the patients were divided into a training cohort and a test cohort in a 7:3 ratio. Seventy-nine patients were used for establishing and training the radiomics model and combined model. In comparison, 37 patients were used for validating and comparing the performance of the models. The diagnostic efficacy of the models for w-HCC and atypical benign FLLs was evaluated using ROCs curves and decision curves. A combined model nomogram was created to assess its value in reducing unnecessary biopsies.</p><p><strong>Results: </strong>Among the patients, there were 55 cases of w-HCC and 61 cases of atypical benign FLLs, including 28 cases of early liver abscess, 16 cases of atypical hepatic hemangioma, 8 cases of hepatocellular dysplastic nodules (DN), and 9 cases of focal nodular hyperplasia (FNH). The radiomics model and combined model we established had AUCs of 0.905 and 0.951, respectively, in the training cohort, and the AUCs of the two models in the test cohort were 0.826 and 0.912, respectively. The combined model outperformed the radiomics feature model significantly. Decision curve analysis demonstrated that the combined model achieved a higher net benefit within a specific threshold probability range (0.25 to 1.00). A nomogram of the combined model was developed.</p><p><strong>Conclusion: </strong>The combined model based on the radiomics features of Sonazoid-CEUS in the Kupffer phase showed satisfactory performance in diagnosing w-HCC and atypical benign FLLs. It can assist clinicians in timely detecting malignant FLLs and reducing unnecessary biopsies for benign diseases.</p>","PeriodicalId":7126,"journal":{"name":"Abdominal Radiology","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140920843","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
Effectiveness of deep learning-based reconstruction for improvement of image quality and liver tumor detectability in the hepatobiliary phase of gadoxetic acid-enhanced magnetic resonance imaging. 基于深度学习的重建技术在改善钆醋酸增强磁共振成像肝胆期图像质量和肝脏肿瘤可探测性方面的效果。
IF 2.3 3区 医学
Abdominal Radiology Pub Date : 2024-10-01 Epub Date: 2024-05-16 DOI: 10.1007/s00261-024-04374-w
Yukihisa Takayama, Keisuke Sato, Shinji Tanaka, Ryo Murayama, Ryotaro Jingu, Kengo Yoshimitsu
{"title":"Effectiveness of deep learning-based reconstruction for improvement of image quality and liver tumor detectability in the hepatobiliary phase of gadoxetic acid-enhanced magnetic resonance imaging.","authors":"Yukihisa Takayama, Keisuke Sato, Shinji Tanaka, Ryo Murayama, Ryotaro Jingu, Kengo Yoshimitsu","doi":"10.1007/s00261-024-04374-w","DOIUrl":"10.1007/s00261-024-04374-w","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the effectiveness of deep learning-based reconstruction (DLR) in improving image quality and tumor detectability of isovoxel high-resolution breath-hold fat-suppressed T1-weighted imaging (HR-BH-FS-T1WI) in the hepatobiliary phase (HBP) of Gadoxetic acid-enhanced magnetic resonance imaging (Gd-EOB-MRI).</p><p><strong>Materials and methods: </strong>This retrospective evaluated 42 patients with 98 liver tumors who underwent Gd-EOB-MRI between March 2023 and May 2023 using three techniques based on HBP imaging: isovoxel HR-BH-FS-T1WI reconstructed (1) with DLR (BH-DLR +) and (2) without DLR (BH-DLR -) and (3) HR-FS-T1WI scanned with a free-breathing technique using a navigator-echo-triggered technique and DLR (Navi-DLR +). The three techniques were qualitatively and quantitatively compared by the Friedman test and the Bonferroni post-hoc test. Tumor detectability was compared using the McNemar test.</p><p><strong>Results: </strong>BH-DLR + (3.85, average score of two radiologists) showed significantly better qualitative scores for image noise than BH-DLR - (2.84) and Navi-DLR + (3.37) (p < 0.0167), and Navi-DLR + showed significantly better scores than BH-DLR - (p < 0.0167). BH-DLR + (3.77) and BH-DLR - (3.77) showed significantly better qualitative scores for respiratory motion artifact than Navi-DLR + (2.75) (p < 0.0167), but there was no significant difference in scores between BH-DLR + and BH-DLR - (p > 0.0167). BH-DLR + (0.32) and Navi-DLR + (0.33) showed significantly higher lesion-to-nonlesion CR than BH-DLR - (0.29) (p < 0.0167), but there was no significant difference in lesion-to-nonlesion CR between BH-DLR + and Navi-DLR + (p > 0.0167). BH-DLR + (89.8%) showed significantly better tumor detectability than BH-DLR - (76.0%) and Navi-DLR + (77.6%) (p < 0.05).</p><p><strong>Conclusion: </strong>The use of DLR for isovoxel HR-BH-FS-T1WI was effective in improving image quality and tumor detectability.</p>","PeriodicalId":7126,"journal":{"name":"Abdominal Radiology","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140955456","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
Imaging of pancreatic serous cystadenoma and common imitators. 胰腺浆液性囊腺瘤和常见仿制者的成像。
IF 2.3 3区 医学
Abdominal Radiology Pub Date : 2024-10-01 Epub Date: 2024-06-02 DOI: 10.1007/s00261-024-04337-1
Camila Lopes Vendrami, Nancy A Hammond, David J Escobar, Zachary Zilber, Meaghan Dwyer, Courtney C Moreno, Pardeep K Mittal, Frank H Miller
{"title":"Imaging of pancreatic serous cystadenoma and common imitators.","authors":"Camila Lopes Vendrami, Nancy A Hammond, David J Escobar, Zachary Zilber, Meaghan Dwyer, Courtney C Moreno, Pardeep K Mittal, Frank H Miller","doi":"10.1007/s00261-024-04337-1","DOIUrl":"10.1007/s00261-024-04337-1","url":null,"abstract":"<p><p>Pancreatic cystic neoplasms are lesions comprised of cystic components that show different biological behaviors, epidemiology, clinical manifestations, imaging features, and malignant potential and management. Benign cystic neoplasms include serous cystic neoplasms (SCAs). Other pancreatic cystic lesions have malignant potential, such as intraductal papillary mucinous neoplasms and mucinous cystic neoplasms. SCAs can be divided into microcystic (classic appearance), honeycomb, oligocystic/macrocystic, and solid patterns based on imaging appearance. They are usually solitary but may be multiple in von Hippel-Lindau disease, which may depict disseminated involvement. The variable appearances of SCAs can mimic other types of pancreatic cystic lesions, and cross-sectional imaging plays an important role in their differential diagnosis. Endoscopic ultrasonography has helped in improving diagnostic accuracy of pancreatic cystic lesions by guiding tissue sampling (biopsy) or cyst fluid analysis. Immunohistochemistry and newer techniques such as radiomics have shown improved performance for preoperatively discriminating SCAs and their mimickers.</p>","PeriodicalId":7126,"journal":{"name":"Abdominal Radiology","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141199240","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
Renal fat deposition measured on dixon-based MRI is significantly associated with early kidney damage in obesity. 基于迪克森核磁共振成像测量的肾脏脂肪沉积与肥胖症的早期肾损伤有显著关联。
IF 2.3 3区 医学
Abdominal Radiology Pub Date : 2024-10-01 Epub Date: 2024-06-05 DOI: 10.1007/s00261-024-04391-9
Huali Tang, Lianghua Xie, Liu Liu, Yan Shen, Ping Yang, Jiamei Wu, Xiaofang Zhao, Yi Li, Zhihong Wang, Yun Mao
{"title":"Renal fat deposition measured on dixon-based MRI is significantly associated with early kidney damage in obesity.","authors":"Huali Tang, Lianghua Xie, Liu Liu, Yan Shen, Ping Yang, Jiamei Wu, Xiaofang Zhao, Yi Li, Zhihong Wang, Yun Mao","doi":"10.1007/s00261-024-04391-9","DOIUrl":"10.1007/s00261-024-04391-9","url":null,"abstract":"<p><strong>Purpose: </strong>To investigate the renal fat deposition on Dixon-based magnetic resonance imaging (MRI) and to explore the predictive value of renal fat biomarkers of magnetic resonance (MR-RFBs) for early kidney damage in obesity.</p><p><strong>Methods: </strong>This prospective study included 56 obese volunteers and 47 non-obese healthy volunteers. All volunteers underwent renal magnetic resonance examinations. The differences in MR-RFBs [including renal proton density fat fraction (PDFF), renal sinus fat volume (RSFV), and perirenal fat thickness (PRFT)] measured on Dixon-based MRI between the obese and non-obese volunteers were analyzed using a general linear model, taking sex, age, diabetes, and hypertension as covariates. The relationship between estimated glomerular filtration rate (eGFR) and demographic, laboratory, and imaging parameters in obese volunteers was examined by correlation analysis.</p><p><strong>Results: </strong>Obese volunteers had higher MR-RFBs than non-obese volunteers after controlling for confounders (all p < 0.001). Renal PDFF (r = - 0.383; p = 0.004), RSFV (r = - 0.368; p = 0.005), and PRFT (r = - 0.451; p < 0.001) were significantly negatively correlated with eGFR in obesity. After adjusting for age, sex, body mass index, diabetes, hypertension, visceral adipose tissue, subcutaneous adipose tissue, renal PDFF, and RSFV, PRFT remained independently negatively associated with eGFR (β = - 0.587; p = 0.003).</p><p><strong>Conclusions: </strong>All MR-RFBs are negatively correlated with eGFR in obesity. The MR-RFBs, especially PRFT, may have predictive value for early kidney damage in obesity.</p>","PeriodicalId":7126,"journal":{"name":"Abdominal Radiology","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141260629","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
A dynamic online nomogram predicting prostate cancer short-term prognosis based on 18F-PSMA-1007 PET/CT of periprostatic adipose tissue: a multicenter study. 基于前列腺周围脂肪组织 18F-PSMA-1007 PET/CT 预测前列腺癌短期预后的动态在线提名图:一项多中心研究。
IF 2.3 3区 医学
Abdominal Radiology Pub Date : 2024-10-01 Epub Date: 2024-06-18 DOI: 10.1007/s00261-024-04421-6
Shuying Bian, Weifeng Hong, Xinhui Su, Fei Yao, Yaping Yuan, Yayun Zhang, Jiageng Xie, Tiancheng Li, Kehua Pan, Yingnan Xue, Qiongying Zhang, Zhixian Yu, Kun Tang, Yunjun Yang, Yuandi Zhuang, Jie Lin, Hui Xu
{"title":"A dynamic online nomogram predicting prostate cancer short-term prognosis based on <sup>18</sup>F-PSMA-1007 PET/CT of periprostatic adipose tissue: a multicenter study.","authors":"Shuying Bian, Weifeng Hong, Xinhui Su, Fei Yao, Yaping Yuan, Yayun Zhang, Jiageng Xie, Tiancheng Li, Kehua Pan, Yingnan Xue, Qiongying Zhang, Zhixian Yu, Kun Tang, Yunjun Yang, Yuandi Zhuang, Jie Lin, Hui Xu","doi":"10.1007/s00261-024-04421-6","DOIUrl":"10.1007/s00261-024-04421-6","url":null,"abstract":"<p><strong>Background: </strong>Rising prostate-specific antigen (PSA) levels following radical prostatectomy are indicative of a poor prognosis, which may associate with periprostatic adipose tissue (PPAT). Accordingly, we aimed to construct a dynamic online nomogram to predict tumor short-term prognosis based on <sup>18</sup>F-PSMA-1007 PET/CT of PPAT.</p><p><strong>Methods: </strong>Data from 268 prostate cancer (PCa) patients who underwent <sup>18</sup>F-PSMA-1007 PET/CT before prostatectomy were analyzed retrospectively for model construction and validation (training cohort: n = 156; internal validation cohort: n = 65; external validation cohort: n = 47). Radiomics features (RFs) from PET and CT were extracted. Then, the Rad-score was constructed using logistic regression analysis based on the 25 optimal RFs selected through maximal relevance and minimal redundancy, as well as the least absolute shrinkage and selection operator. A nomogram was constructed to predict short-term prognosis which determined by persistent PSA.</p><p><strong>Results: </strong>The Rad-score consisting of 25 RFs showed good discrimination for classifying persistent PSA in all cohorts (all P < 0.05). Based on the logistic analysis, the radiomics-clinical combined model, which contained the optimal RFs and the predictive clinical variables, demonstrated optimal performance at an AUC of 0.85 (95% CI: 0.78-0.91), 0.77 (95% CI: 0.62-0.91) and 0.84 (95% CI: 0.70-0.93) in the training, internal validation and external validation cohorts. In all cohorts, the calibration curve was well-calibrated. Analysis of decision curves revealed greater clinical utility for the radiomics-clinical combined nomogram.</p><p><strong>Conclusion: </strong>The radiomics-clinical combined nomogram serves as a novel tool for preoperative individualized prediction of short-term prognosis among PCa patients.</p>","PeriodicalId":7126,"journal":{"name":"Abdominal Radiology","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141417237","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
Unveiling the impact of cirrhotic cardiomyopathy on portal hemodynamics and survival after transjugular intrahepatic portosystemic shunt: a prospective study. 揭示肝硬化心肌病对经颈静脉肝内门体分流术后门静脉血流动力学和存活率的影响:一项前瞻性研究。
IF 2.3 3区 医学
Abdominal Radiology Pub Date : 2024-10-01 Epub Date: 2024-06-20 DOI: 10.1007/s00261-024-04446-x
Yaozu Liu, Fangmin Meng, Jingqin Ma, Wen Zhang, Jiaze Yu, Yongjie Zhou, Wuxu Zuo, Zhiping Yan, Cuizhen Pan, Jianjun Luo
{"title":"Unveiling the impact of cirrhotic cardiomyopathy on portal hemodynamics and survival after transjugular intrahepatic portosystemic shunt: a prospective study.","authors":"Yaozu Liu, Fangmin Meng, Jingqin Ma, Wen Zhang, Jiaze Yu, Yongjie Zhou, Wuxu Zuo, Zhiping Yan, Cuizhen Pan, Jianjun Luo","doi":"10.1007/s00261-024-04446-x","DOIUrl":"10.1007/s00261-024-04446-x","url":null,"abstract":"<p><strong>Background and aims: </strong>The placement of Transjugular intrahepatic portosystemic shunt (TIPS) results in a sudden increase in central circulating blood volume, which requires proper regulation of the cardiovascular system. We aimed to investigate the impact of TIPS on cirrhotic cardiomyopathy (CCM).</p><p><strong>Method: </strong>A consecutive case series of patients with cirrhosis who underwent TIPS were evaluated by echocardiography and pressure measurements before, immediately after TIPS and 2-4 days later (delayed). Furthermore, all patients underwent a one-year follow-up.</p><p><strong>Results: </strong>In this study, 107 patients were enrolled, 38 (35.5%) with CCM. Echocardiography revealed an increase in postoperative left ventricular filling pressure accompanied by an elevation in left ventricular ejection fraction (LVEF). However, patients in the CCM group exhibited lower LVEF and mean arterial pressure (MAP) compared to the non-CCM group. Post-TIPS, CCM patients showed increased right atrium pressure (RAP) that normalized within 2-4 days, whereas non-CCM patients had lower RAP than baseline. Compared to patient without CCM, CCM patients revealed lower immediate (16.7 ± 4.4 vs. 18.9 ± 4.8, p = 0.022) and delayed 15.9 ± 3.7 vs. 17.7 ± 5.3, p = 0.044) portal vein pressures (PVP) and portal pressure gradients (PPG) (7.7 ± 3.4 vs. 9.2 ± 3.6, p = 0.032 and 10.1 ± 3.1 vs. 12.3 ± 4.9, p = 0.013). The 1-year mortality rates were 13.2% for CCM patients and 4.3% for non-CCM patients (log-rank test, p = 0.093), with MELD score, and preoperative RAP significantly associated with the mortality.</p><p><strong>Conclusion: </strong>Cirrhotic patients with CCM exhibit lower PVP and PPG immediately after TIPS and 2-4 days later, without significantly impacting one-year survival outcomes.</p>","PeriodicalId":7126,"journal":{"name":"Abdominal Radiology","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141426062","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}
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