Acta radiologica最新文献_第5页

Strategic approach to embolization of coronary to pulmonary artery fistulas: a technical note. 冠状动脉至肺动脉瘘栓塞的策略方法：技术注意事项。

IF 1.1 4区医学

Acta radiologica Pub Date : 2025-03-01 Epub Date: 2024-12-16 DOI: 10.1177/02841851241300332

Michael Johannes Montag, Stefan Möhlenkamp, Martha von Dohna

{"title":"Strategic approach to embolization of coronary to pulmonary artery fistulas: a technical note.","authors":"Michael Johannes Montag, Stefan Möhlenkamp, Martha von Dohna","doi":"10.1177/02841851241300332","DOIUrl":"10.1177/02841851241300332","url":null,"abstract":"BackgroundCongenital coronary artery to pulmonary artery fistulas (CPAFs) are extremely rare congenital vascular malformations.PurposeTo give a practical approach and consider technical challenges and pitfalls for endovascular embolization of CPAF.Material and MethodsAnatomic, technical, and pathophysiologic considerations are given and demonstrated for antegrade and retrograde endovascular embolization of CPAF.ResultsAntegrade embolization is easier to perform, saves radiation exposure, and is recommended especially in younger patients. In case of a single dominant feeder, antegrade embolization of this feeder might sufficiently treat the CPAF. Retrograde embolization from the pulmonary orifice is technically more challenging but leads to a complete and definite closure of the fistula in one single step.ConclusionPatient age and fistula configuration must be taken into consideration for appropriate treatment approach in CPAF. Prerequisite for successful embolization of CPAF is profound clinical and interventional experience, why we highly recommend to both plan and carry out embolization of CPAF as interdisciplinary procedure.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"290-294"},"PeriodicalIF":1.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142833475","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

YOLOv8 algorithm-aided detection of patellar instability or dislocation on knee joint MRI images. YOLOv8算法辅助检测膝关节MRI图像上髌骨不稳或脱位。

IF 1.1 4区医学

Acta radiologica Pub Date : 2025-03-01 Epub Date: 2024-12-16 DOI: 10.1177/02841851241300617

Ting Li, Nadeer M Gharaibeh, Shanru Jia, Zierdi Qinaer, Saidaitiguli Aihemaiti, AiShengBaTi HaNaTe, Gang Wu

{"title":"YOLOv8 algorithm-aided detection of patellar instability or dislocation on knee joint MRI images.","authors":"Ting Li, Nadeer M Gharaibeh, Shanru Jia, Zierdi Qinaer, Saidaitiguli Aihemaiti, AiShengBaTi HaNaTe, Gang Wu","doi":"10.1177/02841851241300617","DOIUrl":"10.1177/02841851241300617","url":null,"abstract":"BackgroundPatellar instability (PI) or patellar dislocation (PD) is challenging to diagnose accurately based on medical history and clinical manifestations alone. While X-ray, computed tomography (CT), and magnetic resonance imaging (MRI) are commonly employed for detecting PI or PD, computer vision has not yet been widely utilized for this purpose.PurposeTo explore the feasibility of computer vision, specifically the You Only Look Once (YOLO) algorithm, in identifying patellar instability or dislocation.Material and MethodsA total of 550 patients (190 diagnosed with patellar instability or dislocation) were divided into a training set (n = 360), validation set (n = 90), and external test set (n = 100). Four indicators were measured on transverse knee MRI scans to determine the presence of patellar instability, and 450 images were labeled using Labelme software. YOLO version 8 (YOLOv8) was refined using these labeled images and validated on 100 unlabeled images. The diagnostic accuracy of YOLOv8 was compared with that of a junior radiologist.ResultsThe sensitivity, specificity, and accuracy of the refined YOLO model and the junior radiologist were 62%, 97%, and 83%, and 62%, 82%, and 74%, respectively. Although the YOLO model demonstrated slightly higher accuracy, the difference did not reach statistical significance (P = 0.093). The YOLO model required approximately 14.01 ± 10.34 ms to interpret each image, significantly shorter than the 9.55 ± 2.39 s required by the radiologist (P < 0.001).ConclusionThe refined YOLOv8 model is not inferior to junior radiologists in identifying patellar instability or dislocation and offers a significantly faster interpretation time.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"264-268"},"PeriodicalIF":1.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142833487","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

The predictive factors for in-stent restenosis after interventional treatment of chronic carotid artery occlusion. 慢性颈动脉闭塞介入治疗后支架内再狭窄的预测因素。

IF 1.1 4区医学

Acta radiologica Pub Date : 2025-03-01 Epub Date: 2024-12-26 DOI: 10.1177/02841851241301114

Song Pan, Yue-Zhou Cao, Chun Zhou, Zhenyu Jia, Lin-Bo Zhao, Hai-Bin Shi, Sheng Liu

{"title":"The predictive factors for in-stent restenosis after interventional treatment of chronic carotid artery occlusion.","authors":"Song Pan, Yue-Zhou Cao, Chun Zhou, Zhenyu Jia, Lin-Bo Zhao, Hai-Bin Shi, Sheng Liu","doi":"10.1177/02841851241301114","DOIUrl":"10.1177/02841851241301114","url":null,"abstract":"BackgroundIn-stent restenosis (ISR) is a potential severe complication that occurs in patients with severe carotid artery narrowing after carotid angioplasty and stent placement. However, this phenomenon has not been fully studied in the context of interventional treatment for chronic internal carotid artery occlusion (CICAO).PurposeTo quantify the ISR rate and identify the risk factors leading to this event.Material and MethodsThis study included 69 patients with symptomatic CICAO who underwent successful intravascular recanalization at our institution. Clinical information, outcomes, and prognosis of the patients were recorded. The related factors of ISR were analyzed through univariate and multivariate analysis.ResultsA total of 11 (15.9%) patients developed a significant ISR > 70% during the follow-up period. Among them, five patients with ISR experienced symptomatic restenosis. Our study found hyperlipidemia (P = 0.017), contralateral internal carotid artery occlusion (P = 0.041), and prolonged radiologic occlusion to recanalization time (P = 0.049) could contribute to the risk of ISR in patients with CICAO.ConclusionISR is not rare in patients with CICAO after successful intervention. Hyperlipidemia, contralateral ICA occlusion, and prolonged radiologic occlusion to recanalization time are the risk factors for ISR after treatment in patients with CICAO.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"256-263"},"PeriodicalIF":1.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142891331","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

Assessment of collateral circulation in patients with anterior circulation stroke treated with mechanical thrombectomy as a predictor of long-term clinical outcomes. 评估机械取栓治疗前循环卒中患者侧支循环作为长期临床结果的预测因子。

IF 1.1 4区医学

Acta radiologica Pub Date : 2025-03-01 Epub Date: 2025-02-09 DOI: 10.1177/02841851241309523

Marcin Bąk, Justyna Antończak, Michał Frąszczak, Marcin Leus, Maciej Mazgaj, Jacek Gawłowicz, Radosław Pietura

{"title":"Assessment of collateral circulation in patients with anterior circulation stroke treated with mechanical thrombectomy as a predictor of long-term clinical outcomes.","authors":"Marcin Bąk, Justyna Antończak, Michał Frąszczak, Marcin Leus, Maciej Mazgaj, Jacek Gawłowicz, Radosław Pietura","doi":"10.1177/02841851241309523","DOIUrl":"10.1177/02841851241309523","url":null,"abstract":"BackgroundMechanical thrombectomy (MT) is the most effective treatment for large vessel occlusion (LVO) stroke. Despite this treatment, clinical outcomes are highly variable.PurposeTo evaluate the role of collateral circulation in patients undergoing MT as a determinant of clinical outcome, especially in the long term.Material and MethodsThe study included 80 patients who underwent MT for LVO of the anterior cerebral circulation. Patient data were collected on demographics, baseline neurological status, imaging studies (including ASPECTS and collateral circulation score), and clinical status of the patients as determined by NIHSS at discharge and by modified Rankin Scale (mRS) score at 3 and 12 months postoperatively.ResultsPatients with good collateral circulation were compared to the group with poor collateral circulation: they had significantly lower NIHSS at 24 h (median NIHSS 8 vs. 16; P < 0.001) and at the time of discharge (median NIHSS 3.5 vs. 13; P < 0.001). At 3 months, patients with good collateral circulation had a significantly higher chance of achieving a good functional outcome (mRS = 0-2) (62.75% vs. 10.34%; P < 0.001) and had a lower mortality (13.73% vs. 41.38%; P = 0.005). The benefits of good collateral circulation extended into the long term. At 12 months, patients with good collateral circulation were significantly more likely to have good functional outcome (mRS = 0-2) (60.78% vs. 10.34%; P < 0.001) and lower mortality (19.61% vs. 44.83%; P = 0.017).ConclusionGood collateral circulation increases the likelihood of favorable outcome in MT-treated stroke patients at discharge, 3 months, and 12 months.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"341-348"},"PeriodicalIF":1.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143381467","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

Prediction of postoperative disease-free survival in colorectal cancer patients using CT radiomics nomogram: a multicenter study. 使用CT放射组学图预测结直肠癌患者术后无病生存：一项多中心研究。

IF 1.1 4区医学

Acta radiologica Pub Date : 2025-03-01 Epub Date: 2025-02-02 DOI: 10.1177/02841851241302521

Guodong Xu, Feng Feng, Yanfen Cui, Yigang Fu, Yong Xiao, Wang Chen, Manman Li

{"title":"Prediction of postoperative disease-free survival in colorectal cancer patients using CT radiomics nomogram: a multicenter study.","authors":"Guodong Xu, Feng Feng, Yanfen Cui, Yigang Fu, Yong Xiao, Wang Chen, Manman Li","doi":"10.1177/02841851241302521","DOIUrl":"10.1177/02841851241302521","url":null,"abstract":"BackgroundRadiomics analysis is widely used to assess tumor prognosis.PurposeTo explore the value of computed tomography (CT) radiomics nomogram in predicting disease-free survival (DFS) of patients with colorectal cancer (CRC) after operation.Material and MethodsA total of 522 CRC patients from three centers were retrospectively included. Radiomics features were extracted from CT images, and the least absolute shrinkage and selection operator Cox regression algorithm was employed to select radiomics features. Clinical risk factors associated with DFS were selected through univariate and multivariate Cox regression analysis to build the clinical model. A predictive nomogram was developed by amalgamating pertinent clinical risk factors and radiomics features. The predictive performance of the nomogram was evaluated using the C-index, calibration curve, and decision curve. DFS probabilities were estimated using the Kaplan-Meier method.ResultsIntegrating the retained eight radiomics features and three clinical risk factors (pathological N stage, microsatellite instability, perineural invasion), a nomogram was constructed. The C-index for the nomogram were 0.819 (95% CI=0.794-0.844), 0.782 (95% CI=0.740-0.824), 0.786 (95% CI=0.753-0.819), and 0.803 (95% CI=0.765-0.841) in the training set, internal validation set, external validation set 1, and external validation set 2, respectively. The calibration curves demonstrated a favorable congruence between the predicted and observed values as depicted by the nomogram. The decision curve analysis underscored that the nomogram yielded a heightened clinical net benefit.ConclusionThe constructed radiomics nomogram, amalgamating the radiomics features and clinical risk factors, exhibited commendable performance in the individualized prediction of postoperative DFS in CRC patients.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"269-280"},"PeriodicalIF":1.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143078147","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

Hip-spine syndrome from the perspective of radiology: correlations between hip joint disease and lumbar spine MRI findings. 从放射学角度看髋关节-脊柱综合征：髋关节疾病与腰椎MRI表现的相关性

IF 1.1 4区医学

Acta radiologica Pub Date : 2025-03-01 Epub Date: 2025-01-28 DOI: 10.1177/02841851241300329

Haibin Pan, MingLiang Wang, Jianyan Tang, Shiming Wu, YueHua Li, Xiaobing Li

{"title":"Hip-spine syndrome from the perspective of radiology: correlations between hip joint disease and lumbar spine MRI findings.","authors":"Haibin Pan, MingLiang Wang, Jianyan Tang, Shiming Wu, YueHua Li, Xiaobing Li","doi":"10.1177/02841851241300329","DOIUrl":"10.1177/02841851241300329","url":null,"abstract":"BackgroundHip joint (HJ) pain, which may be caused by lumbar disease, is a common complaint.PurposeTo investigate the prevalence and specific correlations between various HJ diseases and lumbar spine magnetic resonance imaging (MRI) findings in patients with HJ pain.Material and MethodsPatients with the chief complaint of HJ pain who had both HJ MRI and lumbar MRI were retrospectively included. According to the existence of HJ disease, patients were divided into the following groups: non-HJ disease; osteoarthritis (OA); femoroacetabular impingement (FAI); ischiofemoral impingement (IFI); greater trochanter pain syndrome (GTPS); and other diseases. The prevalence of major lumbar MRI findings was compared. Correlations between HJ disease and major lumbar MR findings were explored.ResultsA total of 585 patients were included, of which 566 (96.8%) had major findings on lumbar MRI. The HJ disease group was more likely to be female and had more spondylolisthesis, while the non-HJ disease group had more low back or leg pain. The OA group was older and correlated with lumbar spinal stenosis (contingency coefficient = 0.164) and spondylolisthesis (contingency coefficient = 0.095). The FAI group was younger, had more male patients, and correlated with lumbosacral transitional vertebrae (contingency coefficient = 0.122). The IFI group was older, had more female patients, and correlated with facet joint osteoarthritis (contingency coefficient = 0.168). The GTPS group was older, had more female patients, and correlated with spondylolisthesis (contingency coefficient = 0.097).ConclusionMajor lumbar MRI findings were frequently observed in patients with hip pain, even in patients without HJ disease. Specific lumbar MRI finding correlated with different HJ disease.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"281-289"},"PeriodicalIF":1.1,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143051350","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

Patients with ACL injury have lower and more posterior position of proximal tibiofibular joint than patients with intact ACL. 前交叉韧带损伤患者的胫腓骨近端关节位置比前交叉韧带完整患者更低、更后。

IF 1.1 4区医学

Acta radiologica Pub Date : 2025-02-28 DOI: 10.1177/02841851251321474

Takanori Iriuchishima, Bunsei Goto

{"title":"Patients with ACL injury have lower and more posterior position of proximal tibiofibular joint than patients with intact ACL.","authors":"Takanori Iriuchishima, Bunsei Goto","doi":"10.1177/02841851251321474","DOIUrl":"https://doi.org/10.1177/02841851251321474","url":null,"abstract":"Background: Knees with anterior cruciate ligament (ACL) injury have distinct knee bone morphology. However, the correlation between ACL injury and morphology of the proximal tibiofibular joint has not been investigated.Purpose: To compare proximal tibiofibular joint morphology in patients with injured and intact ACLs to aid in predicting and preventing ACL injuries.Material and methods: A total of 50 patients with ACL injury and 50 individuals without structural knee damage (revealed by magnetic resonance imaging [MRI]) were included in this study. In the anteroposterior knee radiographs, the length between the proximal end of the fibular head and the medial and lateral tibia joint line were measured. In the axial knee MRI scans with the most proximal part of the fibular head, the distance calculation was performed between the most anterior point of the tibia plateau (MATP) and the most anterior point of fibular head (MAFH).Results: The mean length from the proximal end of the fibular head and the medial and lateral tibial joint lines was 8.7 ± 2.8 mm and 13.2 ± 2.6 mm in the ACL-injured group, and 6.5 ± 2.8 mm and 11.1 ± 2.4 mm in the control group. The length for both medial and lateral sides was significantly greater in the ACL-injured group. The length between the MATP and MAFH was significantly larger in the ACL-injured group than the control group.Conclusion: A large distance between the proximal end of the fibular head and the tibial joint line and knees with posterior fibular head placement would be another anatomic risk factor of ACL injury.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"2841851251321474"},"PeriodicalIF":1.1,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143522441","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 gray and white matter volumes, clinical features, neurofilament light chain, and glial fibrillary acidic protein in relapsing-remitting multiple sclerosis. 复发缓解型多发性硬化症灰质和白质体积、临床特征、神经丝轻链和胶质纤维酸性蛋白的相关性

IF 1.1 4区医学

Acta radiologica Pub Date : 2025-02-26 DOI: 10.1177/02841851241305738

Neslihan Esgul, Asuman Orhan Varoglu, Begumhan Baysal

{"title":"Association of gray and white matter volumes, clinical features, neurofilament light chain, and glial fibrillary acidic protein in relapsing-remitting multiple sclerosis.","authors":"Neslihan Esgul, Asuman Orhan Varoglu, Begumhan Baysal","doi":"10.1177/02841851241305738","DOIUrl":"https://doi.org/10.1177/02841851241305738","url":null,"abstract":"Background: Numerous studies have examined the prognosis of patients with relapsing-remitting multiple sclerosis (RRMS).Purpose: To seek a relationship between the gray matter/white matter (GM/WM) volume ratio, clinical features, neurofilament light chain (NfL), and glial fibrillary acidic protein (GFAP) in RRMS.Material and methods: A total of 61 patients aged 18-70 years with RRMS and 20 controls were included. Neurological examinations were noted at the first attack and last visit. Blood samples were taken in remission.Results: Patients' WM volume was lower and the GM/WM volume ratio was larger than in the controls (P < 0.001). Patients' WM correlated with GM volume (P < 0.001, r = 0.608). WM correlated with GM/WM volume ratio (P < 0.001, r = -0.632). For NfL and GFAP, no difference was found between patients and controls. Patients' NfL correlated with GFAP (P < 0.001, r = 0.452). Age and disease duration were correlated with Gfap (P < 0.001, r = 0.434; P < 0.002, r = 0.381). No correlation was found between NfL/GFAP levels and all volumetric measurements of patients. Higher Expanded Disability Status Scale (EDSS), lower GM and WM volumes, and greater GM/WM volume ratio were detected in patients with the first pyramidal findings (P < 0.001).Conclusion: Patients' NfL and GFAP levels were lower than in controls and did not correlate with all volumes. GFAP is more informative, particularly in patients of advanced age and those with longstanding diseases. Higher EDSS and decreased GM and WM volumes were seen in patients with pyramidal symptoms at the first attack.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"2841851241305738"},"PeriodicalIF":1.1,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143514311","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

Radiomics analysis of substantia nigra on multi-echo susceptibility map-weighted imaging for differentiating Parkinson's disease from atypical parkinsonian syndromes. 多回声易感图加权成像黑质放射组学分析用于帕金森病与非典型帕金森综合征的鉴别。

IF 1.1 4区医学

Acta radiologica Pub Date : 2025-02-24 DOI: 10.1177/02841851251315707

Weiling Cheng, Wei Zeng, Jiali Guo, Jiankun Dai, Fuqing Zhou, Fangjun Li, Xin Fang

{"title":"Radiomics analysis of substantia nigra on multi-echo susceptibility map-weighted imaging for differentiating Parkinson's disease from atypical parkinsonian syndromes.","authors":"Weiling Cheng, Wei Zeng, Jiali Guo, Jiankun Dai, Fuqing Zhou, Fangjun Li, Xin Fang","doi":"10.1177/02841851251315707","DOIUrl":"https://doi.org/10.1177/02841851251315707","url":null,"abstract":"Background: While the \"swallow tail\" sign observed in the substantia nigra (SN) on susceptibility map-weighted imaging (SMWI) serves as an effective marker for differentiating patients with Parkinson's disease (PD) from healthy individuals, its visual assessment proves inadequate in differentiating PD from atypical Parkinson syndromes (APS).Purpose: To employ radiomic features extracted from multi-echo SMWI of the SN to distinguish between PD and APS.Material and methods: SMWI data were acquired from 63 PD patients, 38 APS patients, and 89 healthy controls. The participants were randomly assigned to either training or test groups in a 7:3 proportion. Utilizing the PyRadiomics software, a set of radiomic features were extracted from SN for analysis. Features underwent standardization via the maximum-minimum method, with 166 statistically significant features identified through independent t-tests. To minimize the risk of overfitting, the least absolute shrinkage and selection operator (LASSO) algorithm was implemented to identify and select the five most significant features from the radiomic dataset. Five distinct machine-learning classifiers were developed to distinguish between PD, APS, and healthy controls. The SHapley Additive Explanations was employed to gain insights into and visualize the relative importance of each feature within these models.Results: Morphological, first-order, texture, and wavelet transform features of the SN emerged as the most crucial determinants. The light gradient-boosting machine model demonstrated superior performance in distinguishing between PD, APS, and healthy controls.Conclusion: Radiomic features of the SN derived from SMWI show promise in differentiating PD from APS, potentially enhancing diagnostic accuracy in clinical settings.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"2841851251315707"},"PeriodicalIF":1.1,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143481984","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

Stage pT0-T1 rectal cancers: emphasis on submucosal high intensity on high-resolution T2-weighted imaging and other morphological features. pT0-T1期直肠癌：强调粘膜下高强度高分辨率t2加权成像及其他形态学特征。

IF 1.1 4区医学

Acta radiologica Pub Date : 2025-02-23 DOI: 10.1177/02841851251316435

Tongyin Zhang, Yuwan Hu, Haoyu Li, Juan Wang, Qiaoyu Xu, Yanyan Xu, Hongliang Sun

{"title":"Stage pT0-T1 rectal cancers: emphasis on submucosal high intensity on high-resolution T2-weighted imaging and other morphological features.","authors":"Tongyin Zhang, Yuwan Hu, Haoyu Li, Juan Wang, Qiaoyu Xu, Yanyan Xu, Hongliang Sun","doi":"10.1177/02841851251316435","DOIUrl":"https://doi.org/10.1177/02841851251316435","url":null,"abstract":"Background: Identification and staging of rectal cancer are mainly based on the difference in signal intensity (SI) between the tumor and normal structures of the intestinal wall on T2-weighted imaging. However, differentiating stage pT0-T1 from pT2 rectal tumors is difficult using routine magnetic resonance imaging (MRI) sequences.Purpose: To summarize and explore whether MRI findings from routine imaging can help differentiate pT0-T1 from pT2 rectal tumors.Material and methods: A total of 110 patients with pT0-T2 rectal cancer underwent preoperative pelvic MRI examinations and tumor resection without preoperative chemoradiotherapy. MRI findings of rectal lesions (including tumor location, shape, longitudinal length, maximum cross-section, submucosal high intensity [SHI], extramural fibrotic scarring, wall shrinkage, lesion-to-wall signal intensity ratio, and presence of lymph node with short axis over 3 mm) and clinical characteristics were analyzed by univariate and multivariate analyses to screen the independent factors associated with pathological results.Results: Of all the lesions, 32 tumors were proved to be pT0-T1 and 78 tumors were pT2. Univariate and multivariate logistic regression analyses revealed that tumor shape (odds ratio [OR] = 24.607, P < 0.001), SHI (OR = 6.129, P = 0.002), and extramural fibrotic scarring (OR = 0.110, P = 0.007) were independent factors distinguishing pT0-T1 tumors from pT2 tumors. If the rectal lesion has a cauliflower-like shape with SHI and no extramural fibrotic scarring, it is more likely to be a pT0-T1 tumor.Conclusion: The imaging features obtained from the routine MRI sequence showed potential value for differentiating pT0-T1 from pT2 rectal tumors.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"2841851251316435"},"PeriodicalIF":1.1,"publicationDate":"2025-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143482019","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