ACTA RADIOLOGICA放射学学报
ACTA RADIOLOGICA(英文缩写 ACTA RADIOL),ISSN 0284-1851,eISSN 1600-0455,中文译名:放射学学报 是一本学术期刊。本页汇总该期刊的最新影响因子、分区信息以及最新收录于 PubMed 的文献,帮助您快速了解期刊全貌。
发文量统计区间：2025-11-01 至 2026-10-31，按本站收录文献的发表日期统计。
期刊介绍
历年影响因子趋势
| JCR 数据年份 | 影响因子 | JCR 分区 |
|---|---|---|
| 2021 | 1.701 | Q4 |
| 2022 | 1.300 | Q4 |
| 2023 | 1.100 | Q3 |
| 2024 | 1.100 | Q4 |
| 2025 | 1.200 | Q4 |
ACTA RADIOLOGICA 最新收录文献
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1. Could central bronchial deformity in pulmonary sarcoidosis be a sign of upper lobe fibrosis?
1. 肺结节病中的中央支气管变形是否可能是上叶纤维化的征象？PMID:日期:2026-09-23BackgroundCentral bronchial deformity (CBD) has been proposed as a radiological marker of a fibrotic upper-lobe phenotype in pulmonary sarcoidosis.PurposeTo evaluate whether CBD and predefined high-resolution computed tomography (HRCT) findings at diagnosis predict the upper-lobe shrinkage (SUL) within 1 year in patients with pulmonary sarcoidosis with upper-lobe involvement.Material and MethodsThis retrospective cohort included adults with histopathologically confirmed pulmonary sarcoidosis who underwent HRCT and chest radiography at diagnosis and approximately 1 year later. Patients with baseline SUL were excluded. Two radiologists independently assessed CBD and predefined HRCT findings. SUL was evaluated on chest radiographs using prespecified signs of upper-lobe volume loss.ResultsAmong 79 patients, baseline CBD was present in 33 (42%). Compared with patients without CBD, those with CBD were older (54 ± 12 vs. 46 ± 14 years; = 0.009), had greater smoking exposure (25 (12-35) vs. 15 (6-20) pack-years; 0.046), more frequently received treatment (67% vs. 39%; = 0.029), and had lower spirometric values. Neither baseline CBD ( = 0.966) nor other baseline HRCT findings were associated with incident SUL. At 1 year, SUL was more frequent among patients with CBD (28% vs. 3%; = 0.007) and ground-glass attenuation (29% vs. 10%; = 0.031).ConclusionCBD was associated with lung remodeling and lower spirometric values but did not predict SUL within 1 year. Its associaton with SUL at 1 year suggests that CBD may be a contemporaneous marker of advanced parenchymal involvement and airway distortion rather than a short-term predictor.
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2. Improved upper abdominal MRI with VIBE sequences using deep learning-supported k-space sampling in a cohort undergoing MRI for gynecologic diseases.
2. 在接受妇科疾病MRI检查的队列中，使用深度学习支持的k空间采样的VIBE序列改进上腹部MRIPMID:日期:2026-09-21BackgroundVolumetric interpolated breath-hold examination (VIBE) is widely used in upper abdominal MRI but can be limited by low signal-to-noise ratio (SNR), especially when rapid acquisition is prioritized. Deep learning (DL)-enhanced reconstruction may improve image quality without extending acquisition time.PurposeTo compare subjective image quality, artifacts, noise, and estimated SNR and contrast-to-noise ratio (CNR) between DL-supported and standard (ST) VIBE sequences of the upper abdomen in women undergoing pelvic MRI, including the effect of contrast enhancement.Material and MethodsThis prospective study included 60 women (mean age 42.1 ± 14.7 years). Four axial sequence types were evaluated: ST and DL VIBE, both non-contrast (NC) and contrast-enhanced (CE). Three radiologists rated image quality, artifacts, and noise using a standardized 4-point Likert scale. Interobserver agreement and the effects of age and body mass index (BMI) were assessed. A quantitative region-of-interest (ROI)-based SNR/CNR analysis was also performed.ResultsDL VIBE yielded better image quality, fewer artifacts, and less noise than ST VIBE. DL-by-CE interactions were significant for image quality and artifacts. Interobserver agreement was moderate for image quality and artifacts but low for noise. Quantitative analysis showed no significant differences in estimated SNR or CNR between ST and DL VIBE before or after contrast administration (all ≥ 0.35).ConclusionDL VIBE improves image quality and reduces artifacts, particularly in NC imaging.
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3. Absolute myocardial mass difference and ventriculo-arterial coupling in morphologically defined left ventricular non-compaction: A multiparametric cardiovascular magnetic resonance study.
3. 绝对心肌质量差异与形态学定义的左心室心肌致密化不全中的心室-动脉耦合：一项多参数心血管磁共振研究PMID:日期:2026-09-20BackgroundLeft ventricular non-compaction (LVNC) is increasingly recognized as a morphological phenotype rather than a distinct cardiomyopathy. Current cardiovascular magnetic resonance (CMR) criteria rely predominantly on static morphologic thresholds and may not adequately reflect dynamic myocardial adaptation.PurposeTo investigate whether absolute myocardial mass difference (AD) represents a marker of structural-functional remodeling and to assess its relationship with hemodynamic and flow-related parameters in morphologically defined LVNC.Material and MethodsIn this retrospective study, 99 patients fulfilling Petersen and Grothoff CMR criteria for LVNC and 66 frequency-matched controls underwent multiparametric 1.5-T CMR. Volumetric indices, left atrial volume, cine-derived functional parameters, and aortic phase-contrast MRI flow timing indices, including time-to-peak velocity (TPV), ejection time (ET), and TPV/ET ratio, were analyzed. AD was defined as the indexed difference between end-diastolic myocardial mass and cycle-averaged myocardial mass. Between-group comparisons, effect size analysis, correlation testing, and ROC analysis were performed.ResultsAD was significantly higher in LVNC patients than in controls (3.71 ± 2.43 vs. 2.03 ± 1.49 g/m; < 0.001) and demonstrated a large effect size (Cohen's = 0.81). LVNC patients exhibited increased end-diastolic and end-systolic volume indices (both < 0.001), preserved cardiac index, and altered systolic flow timing characteristics. AD correlated positively with left atrial volume ( = 0.39; < 0.001) and cardiac index ( = 0.27; = 0.007), whereas no significant association was observed with TPV/ET. ROC analysis demonstrated modest discriminatory performance (AUC = 0.71).ConclusionIn morphologically defined LVNC, AD is increased and associated with atrial remodeling and preserved hemodynamic adaptation. These findings suggest that AD may represent a marker of dynamic structural-functional remodeling rather than static trabecular excess. Incorporation of AD into multiparametric CMR assessment may improve phenotypic characterization and help distinguish compensated hypertrabecularization from clinically relevant myocardial disease.
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4. Clinical and angiographic predictors of recurrent hemoptysis following bronchial artery embolization: The impact of non-bronchial systemic arteries and pulmonary-bronchial anastomoses.
4. 支气管动脉栓塞术后复发性咯血的临床和血管造影预测因素：非支气管体循环动脉和肺-支气管吻合的影响PMID:日期:2026-09-20BackgroundBronchial artery embolization (BAE) is the first-line treatment for hemoptysis with high success rates. However, recurrent hemoptysis remains a significant clinical problem. The role of non-bronchial systemic arteries (NBSAs) and pulmonary-bronchial arterial anastomoses in predicting recurrence remains incompletely understood.PurposeTo evaluate clinical and angiographic predictors of recurrent hemoptysis after BAE.Material and MethodsThis retrospective single-center study included 148 patients who underwent technically and clinically successful BAE for hemoptysis between 2022 and 2024. Univariate and multivariate logistic regression analyses were performed to identify independent predictors of recurrence. ROC analysis was used to evaluate the predictive value of hemoptysis volume.ResultsRecurrent hemoptysis occurred in 42 (28.4%) patients. Multivariate analysis identified NBSAs (odds ratio (OR) = 10.11, 95% confidence interval (CI) = 1.50-68.02; = 0.017), pulmonary-bronchial arterial anastomoses (OR = 4.43, 95% CI = 1.53-12.85; = 0.006), and tuberculosis etiology (OR = 6.81, 95% CI = 2.20-21.05; < 0.001) as independent predictors. Hemoptysis volume showed limited predictive performance (AUC = 0.591; = 0.039).ConclusionNBSAs and pulmonary-bronchial anastomoses are strong independent predictors of recurrent hemoptysis after BAE. Notably, this association persisted even when NBSAs were successfully embolized, suggesting a biological rather than technical basis for recurrence. Patients with complex vascular anatomy and tuberculosis require closer post-procedural surveillance and may benefit from more intensive follow-up strategies after embolization.
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5. Age as a pre-operative predictor of uterine, bladder, and intestinal invasion in cervical cancer.
5. 年龄作为宫颈癌子宫、膀胱和肠道侵犯的术前预测因素PMID:日期:2026-09-16BackgroundAccurate staging of cervical cancer is essential for treatment planning, with Magnetic Resonance Imaging (MRI) being the modality of choice. Cervical cancer is suspected to have variations in its presentation and etiology depending on the age of patients.PurposeTo explore the association between patient age and specific findings on contrast-enhanced MRI in women with newly diagnosed cervical cancer.Material and MethodsThis study included 146 consecutive patients with pathologically confirmed cervical cancer who underwent 3.0T contrast-enhanced MRI for initial staging. MRI scans were evaluated for tumor size, parametrium, uterine, bladder, and intestinal invasion, among other features. Ordinal, binary, and multinomial logistic regression models were used to assess age as a predictor for MRI stage and specific invasive findings. Receiver Operating Characteristic (ROC) curve analysis was performed for significant findings.ResultsThe mean patient age was 49.1 ± 12.2 years. Age was a significant predictor of a higher MRI stage (OR: 1.029, p = 0.025). Increasing age emerged as a significant predictor for uterine invasion (OR: 1.050, 95% CI: 1.022-1.085, p = 0.002), an association that remained significant even after controlling for disease stage. Age predicted higher odds of bladder mucosal (OR: 1.052, p = 0.011) and non-mucosal intestinal invasion (OR: 1.038, p = 0.041). ROC identified an age cutoff of 45.5 for uterine invasion (AUC: 65.2%).ConclusionRadiologists should maintain a heightened index of suspicion for more extensive local invasion when interpreting cervical cancer staging MRIs in older women.
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6. Retrospective comparison of three commercial artificial intelligence algorithms for detection of intracranial hemorrhage (ICH) in the emergency radiology department.
PMID:日期:2026-09-15BackgroundSeveral commercial artificial intelligence (Al) algorithms are available for detecting intracranial hemorrhage (ICH), but independent clinical validation remains limited.PurposeTo compare three commercially available Al algorithms for ICH detection on non- contrast head computed tomography (NCHCT).Material and MethodsIn this retrospective study, 4027 consecutive NCHCT examinations from a large emergency hospital in southwest Sweden were analyzed. Three Al algorithms were applied, with one vendor disclosing participation. Reports from two radiologists and all Al outputs were evaluated. Human-AI performance was assessed using an idealized logical OR model, assuming radiologists perfectly dismissed all false-positive Al flags to calculate system specificity. All positive or discrepant cases underwent expert manual review using two-tier consensus adjudication as the reference standard.ResultsOf 3902 evaluable examinations, 3517 were consistently negative by all readers. The remaining 385 cases underwent manual review, confirming ICH in 176 cases (4.5% prevalence) and excluding it in 209. Eight ICH cases missed by both radiologists were detected by at least one Al system. Aidoc performed best, with 90.3% sensitivity and 99.0% specificity. A simulated mathematical combination of Aidoc with a human reader increased sensitivity to 96.0% while maintaining 99.4% specificity ( < 0.001), comparable to two radiologists.ConclusionAl performance varied substantially, with only one system demonstrating clinically relevant accuracy. Combining Al with human interpretation improved ICH detection and shows promise for future clinical implementation.
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7. Detection of split renal function with MRI: Arterial spin labeling combined with renal structure imaging in obstructive nephropathy.
7. 磁共振成像检测分肾功能：动脉自旋标记联合肾脏结构成像在梗阻性肾病中的应用PMID:日期:2026-09-11BackgroundNon-invasive monitoring of split renal function (SRF) impairment in the context of urinary tract obstruction remains challenging. Renal scintigraphy (RS), the clinical standard, involves ionizing radiation, whereas magnetic resonance imaging (MRI)-based alternatives are underexplored.PurposeTo evaluate arterial spin-labeled (ASL) and structural MRI for SRF assessment in obstructive nephropathy.Material and MethodsConsecutive patients underwent 3.0-T MRI (ASL/T1-weighted). Kidneys (n = 92) were stratified by scintigraphy-derived glomerular filtration rate (RS-GFR) into normal renal function, mild to moderate renal impairment, severe impairment, or no function groups. Cortical renal blood flow (RBF), parenchymal thickness (RPT), and hydronephrosis width (HW) were measured. Group differences (ANOVA/Kruskal-Wallis) and correlations with RS-GFR (Pearson/Spearman) were analyzed. Receiver operating characteristic curves assessed diagnostic performance.ResultsRBF, RPT, and HW differed significantly among groups ( < 0.001), correlating strongly with RS-GFR (r = 0.767, 0.684, -0.589). They discriminated SRF subgroups ( < 0.001); RBF + RPT + HW achieved areas under the curve of 0.869 (normal vs. mild), 0.883 (mild vs. severe), and 0.994 (normal vs. severe).ConclusionASL-derived RBF and structural markers (RPT and HW) correlate robustly with RS-GFR, offering a feasible MRI-based, non-invasive approach for SRF monitoring.
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8. Respiratory rate estimation by using realignment data from a 1-minute high-temporal-resolution MRI sequence: A feasibility study.
8. 利用1分钟高时间分辨率MRI序列的重新对准数据估算呼吸频率：一项可行性研究PMID:日期:2026-09-10BackgroundBreath-hold triggered functional magnetic resonance imaging (bh-fMRI) is a widely available, easily implementable and inexpensive method to quantify cerebrovascular reactivity. Estimation of patients' respiratory rate is relevant, as it might influence bh-fMRI data quality, but respiratory sensors integrated in the scanner table are not always available.PurposeTo propose an approach to estimate patients' respiratory rate using realignment data of a 1-min high-temporal-resolution cerebral MRI sequence.Material and MethodsIn a prospective study, 15 patients with Moyamoya angiopathy underwent a 1-min MRI sequence during routine clinical MRI. The respiratory rate was obtained by analyzing patients' head motion from image realignment data. To obtain robust results, the respiratory rate was calculated using a multi-method approach, incorporating power spectral density and fast Fourier transform and weighted data from multiparametric rigid body transformation. The respiratory rate detected from respiratory sensors integrated in the scanner table was used as reference. Bland-Altman analysis was performed and intra-class correlation coefficients (ICCs) were calculated to compare the respiratory rates.ResultsBland-Altman analysis revealed a mean bias of 0.5 breaths/min and limits of agreement (LoA) ranging from -5.3 to 4.4 breaths/min, with no outliers. The overall agreement between the respiratory rate calculated from realignment data and from scanner sensor data was excellent (ICC = 0.866, 95% confidence interval = 0.607-0.955; < 0.001).ConclusionThe calculated mean bias and LoA appear to be clinically acceptable. Estimating respiratory rate from a 1-min high-temporal-resolution MRI sequence may be a feasible method when respiratory sensors integrated in the scanner are not available.
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9. CT-based cross-center risk stratification of pure ground-glass nodules incorporating domain style-aware correction.
9. 基于CT的跨中心纯磨玻璃结节风险分层：融合领域风格感知校正PMID:日期:2026-09-03BackgroundPure ground-glass nodules (pGGNs) are increasingly detected on chest CT. Although most exhibit indolent behavior, a subset may harbor invasive features before obvious radiological progression, making early risk stratification clinically important.PurposeTo develop and externally validate a CT-based deep learning model with domain adaptation for cross-center risk stratification of pGGNs.Material and MethodsThis retrospective multicenter study included 1235 surgically confirmed pGGNs from two institutions. A deep learning model incorporating domain style-aware correction was developed to differentiate AAH/AIS-like lesions from MIA/IAC-like lesions using preoperative CT images. Data from one center were used for training and internal validation, and an independent external cohort was used for validation. Model performance was evaluated using AUC, accuracy, calibration, and decision curve analysis.ResultsThe model achieved an AUC of 0.93 and an accuracy of 90.4% in the internal validation set. In the external validation set, the AUC was 0.88 with an accuracy of 81.7%, demonstrating good cross-center generalization. Domain adaptation improved external AUC from 0.85 to 0.88. Calibration analysis showed good agreement between predicted and observed probabilities. Decision curve analysis indicated higher net benefit compared with treat-all and treat-none strategies across a range of thresholds.ConclusionThe proposed model demonstrates robust performance across centers and may serve as a noninvasive tool to support individualized surveillance strategies for patients with pGGNs.
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10. Improved liver and portal venous system enhancement with saline flush after contrast injection in portal venous phase computed tomography.
10. 门静脉期计算机断层扫描中，对比剂注射后盐水冲管可改善肝脏和门静脉系统的强化效果PMID:日期:2026-09-01BackgroundThe utility of saline flush in portal venous phase (PVP) contrast-enhanced computed tomography (CECT) for the liver remains controversial.PurposeTo investigate the effect of saline flush after contrast injection on liver and portal venous system enhancement in PVP CECT.Material and MethodsThe saline flush group prospectively included 97 consecutive patients (52 women; median age = 68 years) who underwent PVP CECT with saline flush. The control group retrospectively comprised 105 patients (63 women; median age = 65 years) who underwent PVP CECT without saline flush. Scanning protocols, including contrast injection protocol and scan timing (65 s), were standardized. In the saline flush group, 20 mL of saline, determined through a phantom study, was injected after contrast injection. Two radiologists measured increased CT attenuations (ΔHUs) of the liver, portal vein (PV), superior mesenteric vein (SMV), and splenic vein (SV), and compared them between the two groups. The proportions of cases with liver ΔHU above and below 50 HU were also compared.ResultsΔHUs were higher for the liver (69.4 HU vs. 64.4 HU; = 0.004), PV (184.6 HU vs. 171.9 HU; = 0.001), SMV (179.0 HU vs. 171.0 HU; = 0.002), and SV (185.1 HU vs. 163.6 HU; < 0.001) in the saline flush group than in the control group. The proportion of cases with liver ΔHU below 50 HU was not different between the two groups (5.2% in the saline flush group vs. 7.6% in the control group; = 0.57).ConclusionSaline flush may increase liver and portal venous system enhancement on PVP CECT.