Acta radiologica最新文献_第3页

Incidental cardiovascular calcifications detected on screening CT: prognostic impact over long-term follow-up. CT筛查发现偶发心血管钙化：对长期随访预后的影响。

IF 1.1 4区医学

Acta radiologica Pub Date : 2026-04-01 Epub Date: 2026-02-26 DOI: 10.1177/02841851261419832

Jong Eun Lee, Yun-Hyeon Kim

{"title":"Incidental cardiovascular calcifications detected on screening CT: prognostic impact over long-term follow-up.","authors":"Jong Eun Lee, Yun-Hyeon Kim","doi":"10.1177/02841851261419832","DOIUrl":"10.1177/02841851261419832","url":null,"abstract":"BackgroundThe prognostic significance of incidental cardiovascular calcifications-including coronary artery calcification (CAC), thoracic aortic calcification (TAC), aortic valve calcification (AVC), and mitral annular calcification (MAC)-detected on non-gated, non-contrast low-dose chest computed tomography (LDCT) remains unclear.PurposeTo evaluate the long-term prognostic significance of incidental cardiovascular calcifications detected on screening LDCT.Material and MethodsThis retrospective cohort study included individuals who underwent LDCT at a single health promotion center between 2007 and 2013. A cardiovascular radiologist quantified CAC, TAC, AVC, and MAC using dedicated software. Multivariable Cox proportional hazards regression was used to assess associations with all-cause mortality (ACM) and major adverse cardiovascular events (MACE), defined as revascularization, myocardial infarction, stroke, or cardiovascular death. Incremental prognostic performance was evaluated using Harrell's concordance index (C-index).ResultsAmong the 2434 included individuals (1863 men; median age = 54.2 years), CAC, TAC, AVC, and MAC were identified in 506 (20.8%), 1215 (49.9%), 159 (6.5%), and 49 (2.0%), respectively. The highest TAC category (≥1000) showed the strongest association with ACM (hazard ratio [HR] = 3.11, 95% confidence interval [CI] = 1.57-6.16; P = 0.001). The highest CAC category (≥400) showed the strongest association with MACE (HR = 8.67, 95% CI = 4.46-16.88; P <0.001). However, a combined model incorporating CAC, TAC, AVC, and MAC did not provide significant incremental prognostic value beyond CAC alone for ACM or MACE.ConclusionIncidental TAC was associated with increased long-term risk of ACM, while CAC was associated with MACE. However, their combined incorporation did not provide significant incremental prognostic value.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"368-378"},"PeriodicalIF":1.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147300784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Percutaneous metallic stent placement for malignant extrahepatic biliary obstruction: single-center experience in 612 patients. 经皮金属支架置入术治疗恶性肝外胆道梗阻：612例患者的单中心研究

IF 1.1 4区医学

Acta radiologica Pub Date : 2026-04-01 Epub Date: 2026-02-23 DOI: 10.1177/02841851261420817

Jihoon Kim, Dong Il Gwon, Jeongyeon Kim, Eunbyeol Ko, Jin Hyoung Kim, Gi-Young Ko, Hyun-Ki Yoon

{"title":"Percutaneous metallic stent placement for malignant extrahepatic biliary obstruction: single-center experience in 612 patients.","authors":"Jihoon Kim, Dong Il Gwon, Jeongyeon Kim, Eunbyeol Ko, Jin Hyoung Kim, Gi-Young Ko, Hyun-Ki Yoon","doi":"10.1177/02841851261420817","DOIUrl":"10.1177/02841851261420817","url":null,"abstract":"BackgroundMalignant extrahepatic biliary obstruction is most commonly caused by pancreatic cancer or cholangiocarcinoma and is frequently diagnosed at an advanced stage. Palliation with percutaneous metallic stent placement is often required, but data on large-scale outcomes remain limited.PurposeTo investigate the technical and clinical outcomes of percutaneous metallic stent placement in patients with malignant extrahepatic biliary obstruction and to examine the factors that influence patient survival and stent patency duration.Material and MethodsBetween January 2007 and December 2020, 612 patients (370 men, 242 women, mean age = 63.6 years; age range = 25-90 years) with malignant extrahepatic biliary obstruction were included in this retrospective study.ResultsPercutaneous metallic stents were successfully placed in all 612 patients. A total of 76 (12%) patients had major (n = 50, 8%) or minor (n = 26, 4%) complications. The percutaneous drainage catheter was successfully removed in 553 (90%) patients. In total, 53 patients were lost to follow-up and seven patients underwent subsequent biliary operation after stent placement. Stent occlusion occurred in 158/493 (32%) patients and median stent patency time was 274 days. Multivariate Cox regression analyses revealed that primary malignancy (P <0.001), stent patency (P <0.001), chemotherapy (P <0.001), and isolated biliary obstruction (P = 0.001) were independently associated with longer survival.ConclusionPercutaneous metallic stent placement is safe and effective in patients with malignant extrahepatic biliary obstruction. In addition, primary malignancy, stent patency, chemotherapy, and isolated biliary obstruction are significantly associated with longer survival within this poor-prognosis cohort.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"352-360"},"PeriodicalIF":1.1,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147275443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Association of coronary computed tomography angiography-derived plaque characteristics and brain white matter hyperintensity: an observational study. 冠状动脉ct血管造影衍生斑块特征与脑白质高强度的关联：一项观察性研究。

IF 1.1 4区医学

Acta radiologica Pub Date : 2026-03-29 DOI: 10.1177/02841851261421597

Jie Qin, Dandan Wu, Yue Chu, Yunfei Wang, Wen Qian, Xiaoquan Xu, Yi Xu

{"title":"Association of coronary computed tomography angiography-derived plaque characteristics and brain white matter hyperintensity: an observational study.","authors":"Jie Qin, Dandan Wu, Yue Chu, Yunfei Wang, Wen Qian, Xiaoquan Xu, Yi Xu","doi":"10.1177/02841851261421597","DOIUrl":"https://doi.org/10.1177/02841851261421597","url":null,"abstract":"BackgroundWhite matter hyperintensity (WMH) is a common finding in brain magnetic resonance imaging (MRI), but its relationship with coronary plaque characteristics remains unclear.PurposeTo evaluate the association between coronary computed tomography angiography (CCTA)-derived plaque characteristics and WMH in brain MRI.Material and MethodsCCTA and brain MRI of 392 consecutive patients were retrospectively collected. Degree of total WMH was evaluated based on Fazekas scale (0-6) and classified into mild (0-2) and moderate-to-severe (3-6) groups. Besides demographic and clinical data, morphological and quantitative parameters (e.g. aortic ulcer, Agatston Score, diameter stenosis, plaque volume, plaque length) were also evaluated based on CCTA. Chi-square (or Fisher's exact) test and Student's t-test (or Wilcoxon's signed-rank test) were used for comparing variables between two groups when appropriate. Multivariate logistic regression analyses were applied to identify the independent variables associated with moderate-to-severe WMH.ResultsPatients with moderate-to-severe WMH showed older age, larger plaque burden, plaque length, volume of noncalcified and calcified plaque, higher total cholesterol, triglyceride, low-density lipoprotein, Agatston Score, and higher proportion of male, hypertension, diabetes, aortic ulcer, and obstructive coronary artery disease (CAD) (all P < 0.05). Age (odds ratio [OR]=1.061, 95% confidence interval [CI]=1.013-1.111; P = 0.012), plaque burden (OR=15.259, 95% CI=2.466-94.412; P = 0.003), obstructive CAD (OR=8.020, 95% CI=3.628-17.727; P <0.001), and Agatston Score (OR=1.004, 95% CI=1.002-1.006; P <0.001) were found to be independently associated with moderate-to-severe WMH.ConclusionOlder age, larger plaque burden, higher Agatston score, and obstructive CAD were prone to moderate-to-severe WMH.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"2841851261421597"},"PeriodicalIF":1.1,"publicationDate":"2026-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147571769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Soft-tissue and half-value windows outperform bone window in ureteral stone size measurements in non-enhanced computed tomography. 在非增强计算机断层扫描中，输尿管结石大小测量的软组织窗和半值窗优于骨窗。

IF 1.1 4区医学

Acta radiologica Pub Date : 2026-03-01 Epub Date: 2025-12-23 DOI: 10.1177/02841851251406451

Klara Sahlén, Anders Magnusson, Ulf Nyman, Marcin Popiolek, Lisa Wernroth, Mats Lidén, Johan Jendeberg

{"title":"Soft-tissue and half-value windows outperform bone window in ureteral stone size measurements in non-enhanced computed tomography.","authors":"Klara Sahlén, Anders Magnusson, Ulf Nyman, Marcin Popiolek, Lisa Wernroth, Mats Lidén, Johan Jendeberg","doi":"10.1177/02841851251406451","DOIUrl":"10.1177/02841851251406451","url":null,"abstract":"BackgroundInterreader variability in ureteral stone size measurements affect the predicted probability of spontaneous stone passage (SSP), especially in proximal ureteral stones. Window settings have been shown to influence interreader variability.PurposeTo investigate interreader variability of ureteral stone size measurements in four different window settings.Material and MethodsPatients with a unilateral proximal ureteral stone ≥2.0 mm detected during emergency computed tomography (CT) were included in this single-center study. Five observers measured each stone in three dimensions in a soft-tissue window, bone window, and two half-value windows (based on the mean [half-value MEAN] or maximum attenuation of the stone [half-value MAX]). Limits of agreement of the mean (LOAM) for stone size in each window setting were assessed. Logistic regression curves were created for predicted probability of SSP.ResultsIn total, 124 patients (87 men, 37 women; mean age = 52 years; age range = 22-82 years) were retrospectively evaluated. LOAM: bone window (±1.6 mm, 95% confidence interval [CI]=1.24-4.90), soft-tissue window (±0.4 mm, 95% CI=0.37-0.82), half-value MEAN window (±0.3 mm, 95% CI=0.24-0.40), half-value MAX window (±0.2 mm, 95% CI=0.14-0.30). Prediction curves aligned and shifted to the left as mean stone size decreased in the half-value window settings.ConclusionThe bone window is unsatisfactory for ureteral stone size measurements. The interreader variability in soft-tissue and half-value windows is on a sub-mm magnitude, with no expected impact on clinical decision-making. The half-value MAX window had the smallest interreader variability and should be considered for reproducible and semiautomated ureteral stone size measurements.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"255-263"},"PeriodicalIF":1.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12963466/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145809167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Subtype-tailored endovascular management of basilar trunk aneurysms: safety, efficacy, and technical insights from a cohort of 33 patients. 基于亚型的基底干动脉瘤血管内治疗：来自33例患者队列的安全性、有效性和技术见解

IF 1.1 4区医学

Acta radiologica Pub Date : 2026-03-01 Epub Date: 2026-02-04 DOI: 10.1177/02841851261417268

Haibin Chen, Linbo Zhao, Jian Chen, Guosai Zhang, Zhenyu Jia, Haibin Shi, Sheng Liu

{"title":"Subtype-tailored endovascular management of basilar trunk aneurysms: safety, efficacy, and technical insights from a cohort of 33 patients.","authors":"Haibin Chen, Linbo Zhao, Jian Chen, Guosai Zhang, Zhenyu Jia, Haibin Shi, Sheng Liu","doi":"10.1177/02841851261417268","DOIUrl":"10.1177/02841851261417268","url":null,"abstract":"BackgroundThe optimal endovascular treatment strategy for basilar artery trunk aneurysms (BATAs) remains a subject of ongoing debate.PurposeTo report the experience of management strategies for different types of BATA, with a focus on safety, efficacy, and mid-term outcomes.Material and MethodsA total of 33 consecutive BATAs (19 dissecting, 9 lateral saccular, 5 fusiform) were retrospectively analyzed. The treatment protocol consisted of overlapping stent-assisted coiling (SAC) for dissecting and ruptured cases, single SAC for lateral saccular aneurysms, and flow diverters (FDs) for most fusiform aneurysms; giant fusiform BATAs were treated with dual Leo-plus stents. The primary outcome measure was the 3-month clinical outcome.ResultsSAC was performed in 30 patients (8 single SAC; 22 overlapping SAC), and FD was used in 3 patients. Immediate occlusion was Raymond class 1 in 14/30 (46.7%), class 2 in 11/30 (36.7%), and class 3 in 5/30 (16.7%) among SAC-treated aneurysms; all FD-treated aneurysms (3/33) were OKM-B immediately. One patient died due to intraprocedural re-rupture of a dissecting aneurysm. Periprocedural ischemic complications occurred in 1 (3.0%) patient. A periprocedural hemorrhagic event occurred in 1/4 ruptured cases (overlapping SAC). One delayed ischemic stroke followed FD (mRS at 3 months = 4). At the 3-month follow-up, 30 patients (90.9%, 95% CI=75.1-97.3) achieved favorable outcomes. DSA follow-up (n = 27) demonstrated complete occlusion in 21 aneurysms (77.8%, 95% CI=59.2-89.4).ConclusionEndovascular treatment of BATAs is technically feasible and encouraging, characterized by high occlusion rates and acceptable morbidity rates. The use of overlapping SAC and judicious FD application may optimize treatment outcomes, especially for complex subtypes.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"295-303"},"PeriodicalIF":1.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146117489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Pathology outcomes of PI-RADS category 4 lesions in the peripheral zone: impact of MRI signal features and lesion size. 外周区PI-RADS 4类病变的病理结果：MRI信号特征和病变大小的影响

IF 1.1 4区医学

Acta radiologica Pub Date : 2026-03-01 Epub Date: 2026-01-13 DOI: 10.1177/02841851251404167

Aslihan Onay, Baris Bakir, Evrim Colak, Baris Turkbey, Gokhan Ertas, Tarik Esen

{"title":"Pathology outcomes of PI-RADS category 4 lesions in the peripheral zone: impact of MRI signal features and lesion size.","authors":"Aslihan Onay, Baris Bakir, Evrim Colak, Baris Turkbey, Gokhan Ertas, Tarik Esen","doi":"10.1177/02841851251404167","DOIUrl":"10.1177/02841851251404167","url":null,"abstract":"BackgroundPeripheral zone (PZ) PI-RADS category 4 includes lesions with diverse pathological outcomes, leading to varying prostate cancer (PCa) detection rates between pure category 4 (pCategory-4) and upgraded category 4 (Category-3+1) PZ lesions, as well as different lesion sizes.PurposeTo compare PCa detection rates for pCategory-4 and Category-3+1, considering lesion size.Material and MethodsThis retrospective study included 293 participants with PI-RADS V2.1 category-4 PZ lesions, who underwent MRI-targeted biopsy between 2012 and 2021. Overall and clinically significant PCa (csPCa) detection rates for pCategory-4 and Category-3+1 lesions were compared using Pearson's chi-square (χ2) test. In addition, PCa detection rates were analyzed by lesion size (1-5 mm, 5-10 mm, 10-15 mm, and >15 mm) using Spearman's test. Logistic regression analysis included age, PSA, PSA density, lesion volume, and size/scale for PZ lesions.ResultscsPCa detection rates were 60.4% for pCategory-4 and 25.8% for Category-3+1, while overall PCa detection rates were 69.4% and 36.2%, respectively. pCategory-4 showed higher cancer detection rates than Category-3+1 (overall PCa: χ2 = 22.34; P <0.0001, csPCa: χ2 = 21.88; P <0.001). Larger lesions (>5 mm) were more likely to harbor PCa, with significant differences in detection rates observed for pCategory-4 and Category-3+1 (overall PCa: χ2 = 20.05; P <0.001).ConclusionpCategory-4 lesions have significantly higher PCa detection rates compared to Category-3+1. Larger lesion size is associated with increased PCa detection in pCategory-4 lesions but not in Category-3+1.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"280-289"},"PeriodicalIF":1.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145964874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Explainable deep learning for predicting HER-2 expression in breast cancer: a multicenter study. 可解释的深度学习预测HER-2在乳腺癌中的表达：一项多中心研究。

IF 1.1 4区医学

Acta radiologica Pub Date : 2026-03-01 Epub Date: 2025-12-30 DOI: 10.1177/02841851251392501

Zhendong Lu, Minping Hong, Xinhua Li, Xiaoqian Yao, Zilin Liu, Lifu Lin, Hao Zeng

{"title":"Explainable deep learning for predicting HER-2 expression in breast cancer: a multicenter study.","authors":"Zhendong Lu, Minping Hong, Xinhua Li, Xiaoqian Yao, Zilin Liu, Lifu Lin, Hao Zeng","doi":"10.1177/02841851251392501","DOIUrl":"10.1177/02841851251392501","url":null,"abstract":"BackgroundHuman epidermal growth factor receptor 2 (HER-2) is a key biomarker in breast cancer, guiding therapeutic decisions and prognosis. Conventional assessment relies on tissue biopsy, an invasive procedure that may impose both physical and financial burdens on patients.PurposeTo develop an interpretable deep learning-based imaging framework capable of non-invasively predicting preoperative HER-2 expression.Material and MethodsWe retrospectively analyzed magnetic resonance imaging data and clinical records from 450 patients with pathologically confirmed HER-2 status across four medical centers. Several conventional machine learning algorithms were compared with a deep neural network model. A ResNet-based architecture was used to generate a probability score (D-score) reflecting the likelihood of HER-2 positivity. Independent clinical predictors were identified through logistic regression and integrated with the D-score to construct a combined predictive framework. Model performance was evaluated using receiver operating characteristic analysis, and interpretability techniques were applied to visualize the contribution of individual features.ResultsThe combined deep learning model achieved an area under the curve of 0.809 in the external validation cohort, outperforming the clinical model. Interpretability analysis identified the D-score, rim enhancement, and diameter of the largest axillary lymph node as the most influential predictors, consistent with established clinical knowledge.ConclusionThe proposed model enables accurate, non-invasive, and interpretable prediction of HER-2 expression in breast cancer. It may serve as a preoperative stratification tool, support individualized treatment planning, and reduce reliance on invasive diagnostic procedures.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"264-272"},"PeriodicalIF":1.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145852892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Prospective evaluation of time-resolved MRA in diagnosing and monitoring pulmonary arteriovenous malformations. 时间分辨磁共振成像在诊断和监测肺动静脉畸形中的前瞻性评价。

IF 1.1 4区医学

Acta radiologica Pub Date : 2026-03-01 Epub Date: 2026-02-16 DOI: 10.1177/02841851261419281

Taejun Jeon, Kyung Yeon Lee, Sang Yub Lee, Hong Suk Park, Sun Hye Shin, Sung Mok Kim, Chang Hoon Oh, Kwang Bo Park, Yiseul Kim

{"title":"Prospective evaluation of time-resolved MRA in diagnosing and monitoring pulmonary arteriovenous malformations.","authors":"Taejun Jeon, Kyung Yeon Lee, Sang Yub Lee, Hong Suk Park, Sun Hye Shin, Sung Mok Kim, Chang Hoon Oh, Kwang Bo Park, Yiseul Kim","doi":"10.1177/02841851261419281","DOIUrl":"10.1177/02841851261419281","url":null,"abstract":"BackgroundPulmonary arteriovenous malformations (PAVMs) are rare vascular anomalies that can lead to serious complications, and accurate imaging is essential for detection and post-embolization follow-up.PurposeTo evaluate the diagnostic accuracy and clinical utility of time-resolved magnetic resonance angiography (TR-MRA) in detecting and monitoring PAVMs before and after embolization.Material and MethodsIn this prospective study, 29 patients were initially enrolled between January 2023 and December 2024. After exclusions and loss to follow-up, 27 patients (25 women; median age = 52 years; interquartile range [IQR] = 42-61 years) with 75 PAVMs confirmed on chest computed tomography (CT) were included in the final analysis. Pre-treatment TR-MRA was performed 1 day before embolization, and post-treatment TR-MRA and non-enhanced chest CT were conducted 6 months later. Conventional angiography and pre-procedure CT served as reference standards. TR-MRA was performed using a 3-T scanner with a temporal resolution of 1-1.2 s. Two independent readers evaluated TR-MRA findings.ResultsAmong 75 PAVMs, 11 were previously treated lesions, including two cases of recanalization. Pre-treatment TR-MRA detected 98% (62/63) of naïve PAVMs confirmed on CT and angiography. Post-treatment TR-MRA detected 98% (60/61) of treated lesions. Inter-observer agreement was substantial to excellent (κ = 0.74 for pre-procedure diagnosis of PAVMs and 1.00 for post-procedure follow-up; P <0.05).ConclusionTR-MRA demonstrated excellent diagnostic performance for both pre- and post-embolization evaluation of PAVMs, providing reliable, radiation-free surveillance with diagnostic performance comparable to conventional angiography.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"324-332"},"PeriodicalIF":1.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146199909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Multiparametric cardiovascular magnetic resonance imaging for the diagnosis of acute myocarditis: a single-center study. 多参数心血管磁共振成像诊断急性心肌炎：一项单中心研究。

IF 1.1 4区医学

Acta radiologica Pub Date : 2026-03-01 Epub Date: 2026-02-09 DOI: 10.1177/02841851261418633

Zhiyong Chen, Zhangli Xing, Enshuang Zheng, Mingcong Luo, Yunjing Xue, Bin Sun

{"title":"Multiparametric cardiovascular magnetic resonance imaging for the diagnosis of acute myocarditis: a single-center study.","authors":"Zhiyong Chen, Zhangli Xing, Enshuang Zheng, Mingcong Luo, Yunjing Xue, Bin Sun","doi":"10.1177/02841851261418633","DOIUrl":"10.1177/02841851261418633","url":null,"abstract":"BackgroundThe Lake Louise Criteria (LLC) were updated in 2018 to improve accuracy in evaluating myocarditis. However, the diagnostic value of combining conventional magnetic resonance imaging (MRI) with contrast-enhanced whole-heart MRI (CE WH-MRI) in the diagnosis of acute myocarditis (AM) has not been determined.PurposeTo assess the diagnostic accuracy of the updated LLC and test the incremental value of CE WH-MRI in diagnosis of AM.Material and MethodsBetween March 2020 and November 2023, a total of 37 patients with clinically suspected AM were prospectively recruited for this study. The cardiac MR (CMR) protocol for myocarditis and controls included T2-STIR, breath-hold steady-state free precession, native T1, T2, CE WH-MRI, late gadolinium enhancement (LGE), and post-contrast T1 mapping.ResultsFor global native T1, the ideal cutoff value was 1308.5 ms (area under the curve [AUC]=0.879, sensitivity=82%, specificity=79%); for global T2, 43.2 ms (AUC=0.889, sensitivity=96%, specificity=75%), for ECV, 30.5% (AUC=0.946, sensitivity=97%, specificity=93%). The CE WH-MRI sequence detected 268 myocardial involvement (MI) segments, whereas 2D-LGE images identified 181 MI segments. Among 37 patients, 34 (91.9%) met the updated LLC definition for diagnosis, the AUC of updated LLC was 0.946.ConclusionThe updated LLC, as a recommended criterion for the diagnosis of AM, had better diagnostic accuracy compared with CMR mapping imaging. Moreover, this study highlighted the additional diagnostic value of CE WH-MRI in the identification of AM. Then, multiparametric CMR imaging can provide a satisfactory diagnostic value to enhance the accuracy of diagnosing AM.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"304-313"},"PeriodicalIF":1.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146148762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Hepatic venous malformations versus "hemangiomas": a clinical, radiologic, and pathologic analysis. 肝静脉畸形与“血管瘤”：临床、放射学和病理分析。

IF 1.1 4区医学

Acta radiologica Pub Date : 2026-03-01 Epub Date: 2026-01-06 DOI: 10.1177/02841851251404165

Mohammad A Amarneh, Mason C Vaillancourt, Jonathan Davick, Usama Anwar, Ahmad I Alomari

{"title":"Hepatic venous malformations versus \"hemangiomas\": a clinical, radiologic, and pathologic analysis.","authors":"Mohammad A Amarneh, Mason C Vaillancourt, Jonathan Davick, Usama Anwar, Ahmad I Alomari","doi":"10.1177/02841851251404165","DOIUrl":"10.1177/02841851251404165","url":null,"abstract":"BackgroundHepatic venous malformations (VMs) are adult-onset vascular anomalies that continue to be inaccurately labeled as \"hepatic hemangiomas.\" Despite the widespread adoption of the International Society for the Study of Vascular Anomalies (ISSVA) classification, which distinguishes VMs from vascular tumors, outdated terminology persists. This misclassification may hinder diagnostic accuracy and limit the application of appropriate management strategies, including sclerotherapy.PurposeTo analyze the clinical, radiographic, and histopathologic characteristics of hepatic VMs in adults and assess the accuracy of the existing diagnoses.Material and MethodsThis is a retrospective review of a large tertiary referral center with a statewide catchment area, analyzing adult patients with pathology-proven hepatic VMs referred between January 2000 and July 2021. The original diagnosis and data on clinical, radiographic, pathological, and treatment methods of pathology-proven lesions were collected and analyzed.ResultsA total of 24 adult patients (13 women; mean age = 53.5 years) met the inclusion criteria. In 20 (83.3%) cases, imaging labeled the lesion as \"hemangioma\" before pathology confirmed the same diagnosis; in 4 (16.7%) cases, imaging initially suggested metastases, but pathology labeled them as \"hemangioma.\" Most lesions were solitary (71%) and asymptomatic (67%). Symptomatic lesions had a larger mean diameter (9.3 cm) compared with the overall cohort (4.42 cm). Careful re-review of imaging and histopathology confirmed all lesions to be VMs.ConclusionHepatic VMs are frequently misdiagnosed as hemangiomas. Accurate classification is essential for improving clinical understanding, guiding treatment, and aligning terminology with current vascular anomaly standards.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"273-279"},"PeriodicalIF":1.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145909683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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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