Acta radiologica最新文献

Assessment of local recurrence risk in extremity high-grade osteosarcoma through multimodality radiomics integration. 多模式放射组学整合评估四肢高级别骨肉瘤局部复发风险。

IF 1.1 4区医学

Acta radiologica Pub Date : 2025-07-15 DOI: 10.1177/02841851251356180

Zhendong Luo, Renyi Liu, Jing Li, Qiongyu Ye, Ziyan Zhou, Xinping Shen

{"title":"Assessment of local recurrence risk in extremity high-grade osteosarcoma through multimodality radiomics integration.","authors":"Zhendong Luo, Renyi Liu, Jing Li, Qiongyu Ye, Ziyan Zhou, Xinping Shen","doi":"10.1177/02841851251356180","DOIUrl":"https://doi.org/10.1177/02841851251356180","url":null,"abstract":"BackgroundA timely assessment of local recurrence (LoR) risk in extremity high-grade osteosarcoma is crucial for optimizing treatment strategies and improving patient outcomes.PurposeTo explore the potential of machine-learning algorithms in predicting LoR in patients with osteosarcoma.Material and MethodsData from patients with high-grade osteosarcoma who underwent preoperative radiograph and multiparametric magnetic resonance imaging (MRI) were collected. Machine-learning models were developed and trained on this dataset to predict LoR. The study involved selecting relevant features, training the models, and evaluating their performance using the receiver operating characteristic (ROC) curve and the area under the ROC curve (AUC). DeLong's test was utilized for comparing the AUCs.ResultsThe performance (AUC, sensitivity, specificity, and accuracy) of four classifiers (random forest [RF], support vector machine, logistic regression, and extreme gradient boosting) using radiograph-MRI as image inputs were stable (all Hosmer-Lemeshow index >0.05) with the fair to good prognosis efficacy. The RF classifier using radiograph-MRI features as training inputs exhibited better performance (AUC = 0.806, 0.868) than that using MRI only (AUC = 0.774, 0.771) and radiograph only (AUC = 0.613 and 0.627) in the training and testing sets (P <0.05) while the other three classifiers showed no difference between MRI-only and radiograph-MRI models.ConclusionThis study provides valuable insights into the use of machine learning for predicting LoR in osteosarcoma patients. These findings emphasize the potential of integrating radiomics data with algorithms to improve prognostic assessments.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"2841851251356180"},"PeriodicalIF":1.1,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144635925","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

Uterine artery embolization in sheep: comparison of acute effects with Embosphere microspheres and Embosoft microspheres. 绵羊子宫动脉栓塞：栓塞微球与栓塞微球急性疗效比较。

IF 1.1 4区医学

Acta radiologica Pub Date : 2025-07-10 DOI: 10.1177/02841851251355583

Túlio Fabiano de Oliveira Leite, Marcos de Lorenzo Messina, Celso Kiyochi Takimura, Mira Zlotnik Finkelstein, Jose Maria Soares Júnior, Joaquim Mauricio da Motta Leal Filho

{"title":"Uterine artery embolization in sheep: comparison of acute effects with Embosphere microspheres and Embosoft microspheres.","authors":"Túlio Fabiano de Oliveira Leite, Marcos de Lorenzo Messina, Celso Kiyochi Takimura, Mira Zlotnik Finkelstein, Jose Maria Soares Júnior, Joaquim Mauricio da Motta Leal Filho","doi":"10.1177/02841851251355583","DOIUrl":"https://doi.org/10.1177/02841851251355583","url":null,"abstract":"BackgroundEmbolization plays a significant role in interventional radiology and modern medicine, intersecting with several specialties. The technological advancement of embolic agents has contributed to successful outcomes in the treatment of a wide range of diseases.PurposeTo compare the histomorphological effects of Embosoft microspheres and Embosphere microspheres in uterine artery embolization (UAE) in sheep.Material and MethodsSuperselective and bilateral UAE was performed with Embosoft and Embosphere microspheres in 10 adult non-pregnant sheep. Embosoft microspheres with a diameter of 500-700 μm were compared with Embosphere microspheres of a similar diameter in two groups of five sheep each. One sheep was embolized only with non-ionic iodinated contrast solution and saline (SF0.9%). The evaluation was based on histopathological examination of the uterus, performed 7 days after embolization. Necrosis scores, the diameter of occluded arteries, and the number of particles were assessed. ANOVA test and Student's t-test were used to determine the differences between the study groups.ResultsThe mean volume of embolic agents was 18.35 mL in the Embosphere group and 19.1 mL in the Embosoft group, with no statistically significant difference (P = 0.62). No significant difference was observed between the corresponding sides in the two groups. In addition, there were no significant differences in the thickness of the surface epithelium (Embosphere 21.26 μm vs. 19.72 μm Embosoft; P = 0.56) and glandular area between the groups (Embosphere 12.20% vs. 17.77% Embosoft; P = 0.18).ConclusionEmbosoft micropheres were associated with a greater inflammatory response and a smaller area of degeneration compared to Embosphere microspheres.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"2841851251355583"},"PeriodicalIF":1.1,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144599090","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

Chemoembolization as an alternative treatment for single, small (≤3 cm) hepatocellular carcinomas with subcapsular location: a propensity score analysis. 化疗栓塞作为包膜下单个小（≤3cm）肝细胞癌的替代治疗：倾向评分分析

IF 1.1 4区医学

Acta radiologica Pub Date : 2025-07-10 DOI: 10.1177/02841851251355588

Gayoung Jeon, Jin Hyoung Kim, Eunbyeol Ko, So Yeon Kim, Dong Il Gwon, Ji Hoon Shin, Jungbok Lee

{"title":"Chemoembolization as an alternative treatment for single, small (≤3 cm) hepatocellular carcinomas with subcapsular location: a propensity score analysis.","authors":"Gayoung Jeon, Jin Hyoung Kim, Eunbyeol Ko, So Yeon Kim, Dong Il Gwon, Ji Hoon Shin, Jungbok Lee","doi":"10.1177/02841851251355588","DOIUrl":"https://doi.org/10.1177/02841851251355588","url":null,"abstract":"BackgroundRadiofrequency ablation (RFA) is a first-line therapy for early-stage, single, small (≤3 cm) hepatocellular carcinoma (HCC) tumors; however, adequate control of subcapsular HCC by RFA remains challenging due to the higher risk of major complications and local tumor recurrence than non-subcapsular HCC.PurposeTo compare safety and efficacy of conventional transarterial chemoembolization (cTACE) and RFA as treatments for single, small (≤3 cm) HCC with a subcapsular location.Material and MethodsBetween 2008 and 2017, 717 treatment-naïve patients who underwent cTACE (n = 362) or RFA (n = 355) as a first-line treatment for single, small (≤3 cm), subcapsular HCC were enrolled. Propensity score analysis using inverse probability weighting (IPW) was applied to reduce the effect of potential confounding factors.ResultsThe median follow-up time was 87 months. After propensity score analysis using IPW, the 15-year overall survival rates in the cTACE and RFA groups were 47% and 45%, respectively (P = 0.89). The 15-year time to local tumor recurrence rates were 55% and 71%, respectively (P <0.001), and the 15-year time to recurrence rates were 29% and 30%, respectively (P = 0.18). The rates of major complication associated with cTACE and RFA after IPW were 1% and 4%, respectively (P = 0.01).ConclusioncTACE is a viable alternative to RFA for treating subcapsular HCCs measuring ≤3 cm, with a comparable overall survival rate and fewer major complications.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"2841851251355588"},"PeriodicalIF":1.1,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144607105","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

MRI sequence focused on pancreatic morphology evaluation: three-shot turbo spin-echo with deep learning-based reconstruction. MRI序列聚焦于胰腺形态评估：基于深度学习重建的三次涡轮自旋回波。

IF 1.1 4区医学

Acta radiologica Pub Date : 2025-07-10 DOI: 10.1177/02841851251355844

Yoshisuke Kadoya, Kentaro Mochizuki, Akihiro Asano, Kosuke Miyakawa, Mao Kanatani, Junko Saito, Hitoshi Abo

{"title":"MRI sequence focused on pancreatic morphology evaluation: three-shot turbo spin-echo with deep learning-based reconstruction.","authors":"Yoshisuke Kadoya, Kentaro Mochizuki, Akihiro Asano, Kosuke Miyakawa, Mao Kanatani, Junko Saito, Hitoshi Abo","doi":"10.1177/02841851251355844","DOIUrl":"https://doi.org/10.1177/02841851251355844","url":null,"abstract":"BackgroundHigher-resolution magnetic resonance imaging sequences are needed for the early detection of pancreatic cancer.PurposeTo compare the quality of our novel T2-weighted, high-contrast, thin-slice imaging sequence, with an improved spatial resolution and deep learning-based reconstruction (three-shot turbo spin-echo with deep learning-based reconstruction [3S-TSE-DLR]), for imaging the pancreas with imaging using three conventional sequences (half-Fourier acquisition single-shot turbo spin-echo [HASTE], fat-suppressed 3D T1-weighted [FS-3D-T1W] imaging, and magnetic resonance cholangiopancreatography [MRCP]).Material and MethodsPancreatic images of 50 healthy volunteers acquired with 3S-TSE-DLR, HASTE, FS-3D-T1W imaging, and MRCP were compared by two diagnostic radiologists. A 5-point scale was used for assessing motion artifacts, pancreatic margin sharpness, and the ability to identify the main pancreatic duct (MPD) on 3S-TSE-DLR, HASTE, and FS-3D-T1W imaging, respectively. The ability to identify MPD via MRCP was also evaluated.ResultsArtifact scores (the higher the score, the fewer the artifacts) were significantly higher for 3S-TSE-DLR than for HASTE, and significantly lower for 3S-TSE-DLR than for FS-3D-T1W imaging, for both radiologists. Sharpness scores were significantly higher for 3S-TSE-DLR than for HASTE and FS-3D-T1W imaging, for both radiologists. The rate of identification of MPD was significantly higher for 3S-TSE-DLR than for FS-3D-T1W imaging, for both radiologists, and significantly higher for 3S-TSE-DLR than for HASTE for one radiologist. The rate of identification of MPD was not significantly different between 3S-TSE-DLR and MRCP.Conclusion3S-TSE-DLR provides better image sharpness than conventional sequences, can identify MPD equally as well or better than HASTE, and shows identification performance comparable to that of MRCP.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"2841851251355844"},"PeriodicalIF":1.1,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144607106","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 MRI radiomics predicts overall survival in hepatocellular carcinoma. 多参数MRI放射组学预测肝细胞癌的总生存期。

IF 1.1 4区医学

Acta radiologica Pub Date : 2025-07-08 DOI: 10.1177/02841851251324572

Tong Zhang, Jialiang Ren, Hui Wu, Yang Gao, He Hu, Yushan Jia, Wenjia Wang

{"title":"Multiparametric MRI radiomics predicts overall survival in hepatocellular carcinoma.","authors":"Tong Zhang, Jialiang Ren, Hui Wu, Yang Gao, He Hu, Yushan Jia, Wenjia Wang","doi":"10.1177/02841851251324572","DOIUrl":"https://doi.org/10.1177/02841851251324572","url":null,"abstract":"BackgroundThe prognosis for hepatocellular carcinoma (HCC) is unfavorable, primarily attributable to the high incidence of recurrence.PurposeTo assess the prognostic value of multiparametric magnetic resonance imaging (mp-MRI) based on radiomic features for overall survival (OS) in patients with HCC.Material and MethodsPatients who underwent abdominal mp-MRI examination before hepatectomy in our hospital between January 2016 and December 2019 were retrospectively collected and divided into a training group and a verification group at a ratio of 7:3. The patients' images, clinical parameters, and semantic features were collected. A three-dimensional volume of interest was delineated and radiomics features were screened. Independent predictors of clinical imaging were screened and combined with radiomics features to construct a combinatorial model and draw a nomogram. The predictive efficacy of the model was evaluated.ResultsThe Harrell's C-index values were 0.737 and 0.711 for the clinical imaging model and 0.705 and 0.704 for the full sequence model in the training group and validation group, respectively. The combinatorial model had higher efficiency, and the C-index values in the training group and the validation group were 0.779 and 0.756, respectively. The survival curve showed that the low-risk group defined by the radiomics signature had significantly better OS than the high-risk group (3-year OS: 61.54% vs. 30.77%; P < 0.05).ConclusionThe combined model can predict the OS of patients with HCC non-invasively before surgical resection and can be used as a clinical tool to guide individualized treatment.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"2841851251324572"},"PeriodicalIF":1.1,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144582801","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

Feasibility study of T2 mapping and fat analysis and calculation technique in the evaluation of thigh quadriceps before and after countermovement jump. T2制图及脂肪分析计算技术在反动作跳跃前后股四头肌评价中的可行性研究。

IF 1.1 4区医学

Acta radiologica Pub Date : 2025-07-03 DOI: 10.1177/02841851251345728

Jie Hu, Yilin Xu, Meng Chen, Xinghua Huo, Peng Yuan, Xianfeng Yang

{"title":"Feasibility study of T2 mapping and fat analysis and calculation technique in the evaluation of thigh quadriceps before and after countermovement jump.","authors":"Jie Hu, Yilin Xu, Meng Chen, Xinghua Huo, Peng Yuan, Xianfeng Yang","doi":"10.1177/02841851251345728","DOIUrl":"https://doi.org/10.1177/02841851251345728","url":null,"abstract":"BackgroundThe application of quantitative magnetic resonance imaging (MRI) in skeletal muscle is crucial in rehabilitation medicine and competitive sports training.PurposeTo explore the feasibility of evaluating T2 value, proton density fat fraction (PDFF), and cross-sectional area (CSA) of the quadriceps femoris before and after countermovement jump (CMJ) based on T2 mapping and Fat Analysis and Calculation Technique (FACT).Material and MethodsA total of 32 healthy volunteers were recruited and underwent MRI examination of the thigh muscles, including axial T2 mapping and FACT sequence. The T2 value, PDFF, and CSA of the quadriceps femoris, adductor magnus, and gracilis were measured. The peak torque (PT) of the quadriceps femoris was measured using an isokinetic muscle strength system. The differences in MRI parameters before and after CMJ were compared, as well as the differences between sexes.ResultsThe T2 value and CSA of the quadriceps femoris and adductor magnus increased and PDFF decreased after CMJ (P <0.01). The PDFF of the gracilis was significantly higher than that of the vastus lateralis, and the vastus lateralis had a significantly higher PDFF than the other muscles (P <0.01). PT was highly correlated with the CSA of the quadriceps femoris (P <0.001, r = 0.906). CSA and PT of men were higher than those of women (P <0.001).ConclusionT2 mapping and FACT can quantitatively evaluate the differences of T2 value, PDFF, and CSA of different muscles before and after CMJ, which is an important evaluation method for competitive sports training and disease rehabilitation.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"2841851251345728"},"PeriodicalIF":1.1,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144558781","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

3D evaluation of bony orbit characteristics in relation to age, sex, and symmetry: a quantitative CT study. 骨眶特征与年龄、性别和对称性的三维评价：一项定量CT研究。

IF 1.1 4区医学

Acta radiologica Pub Date : 2025-07-01 Epub Date: 2025-04-23 DOI: 10.1177/02841851251326162

Ebru Otu, Nureda Nalçacı Bozkurt, Tuğrul Örmeci, Neslihan Yüzbaşıoğlu

{"title":"3D evaluation of bony orbit characteristics in relation to age, sex, and symmetry: a quantitative CT study.","authors":"Ebru Otu, Nureda Nalçacı Bozkurt, Tuğrul Örmeci, Neslihan Yüzbaşıoğlu","doi":"10.1177/02841851251326162","DOIUrl":"10.1177/02841851251326162","url":null,"abstract":"BackgroundIdentifying accurate data about the bony orbit features according to age, sex, and symmetry is crucial for the effective treatment of orbital pathologies.PurposeTo analyze changes in the dimensions of the orbital aperture and volume of the bony orbit according to age and sex, and to evaluate individual symmetry using 3D computed tomography scans.Material and MethodsWe retrospectively analyzed the data obtained from 150 Turkish adults (75 men, 75 women) without an orbital pathology. The study sample was categorized into three age groups: 20-39, 40-59, and ≥60 years. We used the 3DSlicer and Syngo software to measure bony orbital volume (BOV) and the dimensions of the orbital aperture.ResultsThe BOV showed no difference between the left and right orbit for each individual, while orbital height and width were significantly different between the two sides (P < 0.05). The mean BOV for both orbits was significantly higher in the ≥60-year age group compared to the 20-39-year age group (P < 0.05). In all age categories, men exhibited a larger BOV than women (P < 0.001). There were no significant differences in BOV across age groups for either sex (P > 0.05). However, the direct effect of age on BOV was found to be significant only in women (p < 0.05)ConclusionOur findings indicate a significant relationship between aging and BOV, particularly in women, and individual asymmetry in orbital height and width parameters. These results provide accurate normative data for the diagnosis and treatment of orbital pathologies.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"748-756"},"PeriodicalIF":1.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143955383","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

Evaluation of magnetic resonance imaging features of spontaneous third ventriculostomy in triventricular hydrocephalus. 三脑室脑积水自发性第三脑室造瘘的磁共振成像特征评价。

IF 1.1 4区医学

Acta radiologica Pub Date : 2025-07-01 Epub Date: 2025-03-17 DOI: 10.1177/02841851251324925

Serdar Arslan, Ahmet Kursat Karaman, Bora Korkmazer, Emil Hikmat, Ahmet Ustundag, Burak Tahmazoğlu, Ali Metin Kafadar, Osman Kızılkılıç

{"title":"Evaluation of magnetic resonance imaging features of spontaneous third ventriculostomy in triventricular hydrocephalus.","authors":"Serdar Arslan, Ahmet Kursat Karaman, Bora Korkmazer, Emil Hikmat, Ahmet Ustundag, Burak Tahmazoğlu, Ali Metin Kafadar, Osman Kızılkılıç","doi":"10.1177/02841851251324925","DOIUrl":"10.1177/02841851251324925","url":null,"abstract":"BackgroundSpontaneous third ventriculostomy (STV) is considered rare in obstructive hydrocephalus cases.PurposeTo investigate the efficacy of phase-contrast magnetic resonance imaging (PC-MRI) and three-dimensional constructive interference in steady-state (3D-CISS) for the diagnosis of STV and the potential changes of various radiological parameters measured in hydrocephalus in cases with STV.Material and MethodsPatients with triventricular hydrocephalus who underwent at least one MRI examination, including PC-MRI and 3D-CISS, between 2010 and 2021 were included. The presence of STV was scored separately on PC-MRI and 3D-CISS as follows: 0 = no evidence of STV; 1 = suspicious findings; and 2 = strong evidence of STV. The total STV score was also created by summing the scores determined on both sequences. Evans' index, third ventricle diameter (TVD), third ventricle height and floor bowing, and height of the interpeduncular cistern were compared between cases with and without STV.ResultsSTV diagnosis was confirmed in 10/187 (5.3%) cases. The first observer detected suspicious findings in four and two patients without a confirmed diagnosis on PC-MRI and 3D-CISS, respectively, while the second detected suspicious findings in three and two patients, respectively. There was a strong correlation between PC-MRI, 3D-CISS, total scoring results, and consensus results (P < 0.001). No significant difference was found in measurements except TVD between the two groups.ConclusionSTV may not be a very rare phenomenon and the combined use of PC-MRI and 3D-CISS for diagnosis may aid in overcoming diagnostic challenges. No significant change can be observed in ventriculomegaly-related parameters in patients with STV.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"740-747"},"PeriodicalIF":1.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143646703","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

Machine learning algorithms can recognize hydronephrosis in non-contrast CT images. 机器学习算法可以在非对比CT图像中识别肾积水。

IF 1.1 4区医学

Acta radiologica Pub Date : 2025-07-01 Epub Date: 2025-03-24 DOI: 10.1177/02841851251327892

Bökebatur Ahmet Raşit Mendi, Halitcan Batur

{"title":"Machine learning algorithms can recognize hydronephrosis in non-contrast CT images.","authors":"Bökebatur Ahmet Raşit Mendi, Halitcan Batur","doi":"10.1177/02841851251327892","DOIUrl":"10.1177/02841851251327892","url":null,"abstract":"BackgroundHydronephrosis, particularly attributed to the presence of renal calculi, is a clinical condition that can result in permanent renal injury, necessitating the utilization of imaging modalities for accurate diagnosis. Methodologies that can swiftly aid the radiologist by reducing workload are required for the preliminary diagnosis of hydronephrosis, which is critical in clinical practice.PurposeTo examine the efficacy of autosegmentation-assisted radiomics in predicting the presence of hydronephrosis among individuals diagnosed with renal colic.Material and MethodsThe study comprised 268 individuals who had non-contrast computed tomography (CT) scans presenting unilateral hydronephrosis. After the 3D autosegmentation of each patient's kidneys, first- and second-order radiomics parameters were acquired and Least Absolute Shrinkage and Selection Operator was employed as the dimensionality reduction tool. Machine learning (ML) procedures consisted of Support Vector Machine (SVM), Random Forest Classifier (RFC) analysis, Extreme Gradient Boosting (XGBoost), and Decision Tree Analysis.ResultsNo statistically significant difference was observed between the groups when comparing the side of hydronephrosis and the distribution of age among sexes. The repeated measurements of 3D autosegmentation exhibited a high level of intra-observer agreement. SVM, RFC, XGBoost, and Decision Tree analyses were able to predict the presence of hydronephrosis with AUC values of 0.966, 0.925, 0.994, and 0.978, respectively.ConclusionML-assisted radiomics can be considered an effective tool for accurately predicting the presence of hydronephrosis.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"782-789"},"PeriodicalIF":1.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143690814","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

Correlation between AI algorithm generated radiographic hip measurements for hip dysplasia patients and internal derangement findings on advanced MRI. 人工智能算法生成的髋关节x线测量髋关节发育不良患者与高级MRI内部紊乱的相关性。

IF 1.1 4区医学

Acta radiologica Pub Date : 2025-07-01 Epub Date: 2025-03-19 DOI: 10.1177/02841851251324551

Shuda Xia, Holden Archer, Yin Xi, Joel Wells, Avneesh Chhabra

{"title":"Correlation between AI algorithm generated radiographic hip measurements for hip dysplasia patients and internal derangement findings on advanced MRI.","authors":"Shuda Xia, Holden Archer, Yin Xi, Joel Wells, Avneesh Chhabra","doi":"10.1177/02841851251324551","DOIUrl":"10.1177/02841851251324551","url":null,"abstract":"BackgroundHip dysplasia (HD) involves abnormal acetabular development, resulting in reduced femoral head coverage, labral tears, and cartilage injury. Machine learning (AI) advancements have enabled reproducible radiographic measurements for HD, such as lateral center edge angle (LCEA), Tonnis, and extrusion index. Moreover, incorporating 3D magnetic resonance imaging (MRI) alongside 2D MRI enhances diagnostic capabilities.PurposeTo correlate advanced MRI-assessed labral and cartilage injuries with validated AI-generated radiographic measurements.Material and MethodsThis study enrolled 139 patients (age range = 16-68 years) with HD, comprising a total of 156 hips. All patients had 2D and 3D MRI scans, four-view X-rays, and AI-generated radiographic measurements using a commercial AI program that utilized bony landmarks to generate measurements. Labral reconstructions were obtained for each hip, and a multi-reader study was conducted. Inter-reader (ICC) analysis and Spearman correlations were calculated.ResultsThe predominant location for the largest labral tear was anterosuperior (133/156, 90%), and paralabral cysts were observed in 53/156 (34%) cases. No statistically significant correlations were found between the length of labral tears and radiographic measurements. However, statistically significant correlations were observed between paralabral cysts and femoral head coverage, extrusion index, LCEA, and Tonnis measurements.ConclusionAI-generated radiographic measurements in HD exhibited weak correlations with advanced MRI findings, likely due to the condition's complex pathophysiology.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"722-732"},"PeriodicalIF":1.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143655959","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