Acta radiologica最新文献_第9页

Changes in the central nervous system in football players: an MRI study. 足球运动员中枢神经系统的变化：核磁共振成像研究。

IF 1.1 4区医学

Acta radiologica Pub Date : 2024-08-01 Epub Date: 2024-05-20 DOI: 10.1177/02841851241248410

Andrzej Urbanik, Wiesław Guz, Maciej Brożyna, Monika Ostrogórska

{"title":"Changes in the central nervous system in football players: an MRI study.","authors":"Andrzej Urbanik, Wiesław Guz, Maciej Brożyna, Monika Ostrogórska","doi":"10.1177/02841851241248410","DOIUrl":"10.1177/02841851241248410","url":null,"abstract":"Background: Football (soccer) is the world's most popular team sport.Purpose: To comprehensively examine the brain in football (soccer) players, with the use of magnetic resonance imaging (MRI) techniques.Material and methods: The study involved 65 football players and 62 controls. The MR examinations were performed using MR 1.5-T system (Optima MR 360; GE Medical Systems). The examinations were carried out in the 3D Bravo, CUBE, FSEpropeller, and diffusion-weighted imaging (DWI) sequences. The 1HMRS signal was obtained from the volume of interest in the frontal and occipital lobes on both sides.Results: The present study, based on structural MRI, shows some changes in the brains of the group of football players. The findings show asymmetry of the ventricular system in four football players, arachnoid cysts in the parieto-occipital region, and pineal cysts. NAA/Cr concentration in the right frontal lobe was lower in the football players than in the controls, and the Glx/Cr concentration in the right occipital lobe was higher. The apparent diffusion coefficient value is lower in football players in the occipital lobes.Conclusion: Playing football can cause measurable changes in the brain, known to occur in patients diagnosed with traumatic brain injury. The present findings fill the gap in the literature by contributing evidence showing that playing football may lead to changes in the brain, without clinical symptoms of concussion.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"967-974"},"PeriodicalIF":1.1,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141064873","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

Improving intracranial aneurysms image quality and diagnostic confidence with deep learning reconstruction in craniocervical CT angiography. 在颅颈部 CT 血管造影中利用深度学习重建提高颅内动脉瘤图像质量和诊断信心。

IF 1.1 4区医学

Acta radiologica Pub Date : 2024-08-01 Epub Date: 2024-06-05 DOI: 10.1177/02841851241258220

Kun Bai, Tiantian Wang, Guozhi Zhang, Ming Zhang, Hongchao Fu, Yun Feng, Kaiyi Liang

{"title":"Improving intracranial aneurysms image quality and diagnostic confidence with deep learning reconstruction in craniocervical CT angiography.","authors":"Kun Bai, Tiantian Wang, Guozhi Zhang, Ming Zhang, Hongchao Fu, Yun Feng, Kaiyi Liang","doi":"10.1177/02841851241258220","DOIUrl":"10.1177/02841851241258220","url":null,"abstract":"Background: The diagnostic impact of deep learning computed tomography (CT) reconstruction on intracranial aneurysm (IA) remains unclear.Purpose: To quantify the image quality and diagnostic confidence on IA in craniocervical CT angiography (CTA) reconstructed with DEep Learning Trained Algorithm (DELTA) compared to the routine hybrid iterative reconstruction (HIR).Material and methods: A total of 60 patients who underwent craniocervical CTA and were diagnosed with IA were retrospectively enrolled. Images were reconstructed with DELTA and HIR, where the image quality was first compared in noise, signal-to-noise ratio (SNR), and contrast-to-noise ratio (CNR). Next, two radiologists independently graded the noise appearance, arterial sharpness, small vessel visibility, conspicuity of calcifications that may present in arteries, and overall image quality, each with a 5-point Likert scale. The diagnostic confidence on IAs of various sizes was also graded.Results: Significantly lower noise and higher SNR and CNR were found on DELTA than on HIR images (all P < 0.05). All five subjective metrics were scored higher by both readers on the DELTA images (all P < 0.05), with good to excellent inter-observer agreement (κ = 0.77-0.93). DELTA images were rated with higher diagnostic confidence on IAs compared to HIR (P < 0.001), particularly for those with size ≤3 mm, which were scored 4.5 ± 0.6 versus 3.4 ± 0.8 and 4.4 ± 0.7 versus 3.5 ± 0.8 by two readers, respectively.Conclusion: The DELTA shows potential for improving the image quality and the associated confidence in diagnosing IA that may be worth consideration for routine craniocervical CTA applications.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"913-921"},"PeriodicalIF":1.1,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141260630","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

Acute pancreatitis and computed tomography: Interest of portal venous phase alone in the initial phase. 急性胰腺炎与计算机断层扫描：最初阶段仅对门静脉阶段感兴趣。

IF 1.1 4区医学

Acta radiologica Pub Date : 2024-08-01 Epub Date: 2024-06-14 DOI: 10.1177/02841851241260874

Wilfried Ansel-Wallois, Parfait Assako, Thierry Yzet, Roger Bouzerar

{"title":"Acute pancreatitis and computed tomography: Interest of portal venous phase alone in the initial phase.","authors":"Wilfried Ansel-Wallois, Parfait Assako, Thierry Yzet, Roger Bouzerar","doi":"10.1177/02841851241260874","DOIUrl":"10.1177/02841851241260874","url":null,"abstract":"Background: There are no guidelines in the literature for the use of a computed tomography (CT) protocol in the initial phase of acute pancreatitis (AP).Purpose: To evaluate the contribution of single portal venous phase CT compared to triple-phase CT protocol, performed in the initial phase of AP for severity assessment.Material and methods: In this retrospective study, a total of 175 patients with acute pancreatitis who underwent initial triple-phase CT protocol (non-contrast, arterial phase, and portal venous phase) between D3 and D7 after the onset of symptoms were included. Analysis of AP severity and complications was independently assessed by two readers using three validated CT severity scores (CTSI, mCTSI, EPIC). All scores were applied to the triple-phase CT protocol and compared to the single portal venous phase. Inter-observer analyses were also performed.Results: No significant difference whatever the severity score was observed after analysis of the single portal venous phase compared with the triple-phase CT protocol (interstitial edematous pancreatitis: CTSI: 2 vs. 2, mCTSI: 2 vs. 2, EPIC: 1 vs. 1; necrotizing pancreatitis: CTSI: 6 vs. 6, mCTSI: 8 vs. 8, EPIC: 5 vs. 5). Inter-observer agreement was excellent (ICC = 0.96-0.99), whatever the severity score.Conclusion: A triple-phase CT protocol performed at the initial phase of AP was no better than a single portal venous for assessing the severity of complications and could lead to a 63% reduction in irradiation.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"889-897"},"PeriodicalIF":1.1,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141316468","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

Artificial intelligence iterative reconstruction in abdominal CT of patients with irregular arm positioning: a case-by-case evaluation. 人工智能迭代重建腹部 CT：对不规则手臂定位患者的个案评估。

IF 1.1 4区医学

Acta radiologica Pub Date : 2024-08-01 Epub Date: 2024-06-14 DOI: 10.1177/02841851241258845

Jin Li, Ting Meng, Guozhi Zhang, Xiang Yu, Zhihua Lu, Weiguo Zhang

{"title":"Artificial intelligence iterative reconstruction in abdominal CT of patients with irregular arm positioning: a case-by-case evaluation.","authors":"Jin Li, Ting Meng, Guozhi Zhang, Xiang Yu, Zhihua Lu, Weiguo Zhang","doi":"10.1177/02841851241258845","DOIUrl":"10.1177/02841851241258845","url":null,"abstract":"Background: Streak artifacts induced by irregular arm positioning have been an issue in diagnosing the abdomen.Purpose: To illustrate the risk of misdiagnosis in abdominal computed tomography (CT) of patients with irregular arm positioning through a case-by-case evaluation and to test if it can be solved by the artificial intelligence iterative reconstruction (AIIR) algorithm.Material and methods: By reviewing 5220 cases of chest and thoracoabdominal CT, 64 patients with irregular arm positioning were enrolled, whose image data were reconstructed using AIIR in addition to routine hybrid iterative reconstruction (HIR). Lesion detection for livers, spleens, kidneys, gallbladders, and pancreas on AIIR images, performed by two radiologists, was compared with those on HIR images. Discrepancies arising from AIIR images included both cases with additional abnormalities and those with corrections made on previous detections. For cases with discrepancies, artifact scores for organs where discrepancies were found, and contrast-to-noise ratios (CNRs) of cysts with discrepancies were compared between two image sets.Results: Additional abnormalities were detected for 15 cases: additional liver cirrhosis (n=2); additional gallbladder stone (n=1); additional cholecystitis (n=1), additional spleen nodule (n=1); additional kidney cysts (n=8); additional liver cysts (3); and additional spleen cyst (n=1). A spleen contusion was corrected for one case. All involved artifact scores were improved on AIIR images. CNRs of involved liver, kidney, and spleen cysts were improved by up to 539.7%, 538.5%, and 245.5%, respectively.Conclusion: Irregular arm positioning may induce a variety of misdiagnoses in abdominal CT, which is almost totally avoidable by the AIIR algorithm.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"907-912"},"PeriodicalIF":1.1,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141316469","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

Cone-beam computed tomography imaging and three-dimensional analysis of midfoot joints during non-weightbearing and weightbearing in 11 healthy feet. 对 11 只健康足在非负重和负重时的中足关节进行锥形束计算机断层扫描成像和三维分析。

IF 1.1 4区医学

Acta radiologica Pub Date : 2024-08-01 Epub Date: 2024-07-23 DOI: 10.1177/02841851241262479

Jarkko Kettunen, Nikke Partio, Jari Salo, Tero Yli-Kyyny, Tommi Kiekara, Ville M Mattila, Heidi Haapasalo

{"title":"Cone-beam computed tomography imaging and three-dimensional analysis of midfoot joints during non-weightbearing and weightbearing in 11 healthy feet.","authors":"Jarkko Kettunen, Nikke Partio, Jari Salo, Tero Yli-Kyyny, Tommi Kiekara, Ville M Mattila, Heidi Haapasalo","doi":"10.1177/02841851241262479","DOIUrl":"10.1177/02841851241262479","url":null,"abstract":"Background: Studies report that Lisfranc injury is more common than thought. Several imaging methods for assessing the stability of Lisfranc injury have been described but many are impossible to standardize and not accurate enough.Purpose: To present a three-dimensional (3D) method for analyzing the changes in the joint space width of the midfoot joint and the joints of the medial part of the Lisfranc complex in healthy individuals.Material and methods: Non-weightbearing and weightbearing cone-beam computed tomography (CBCT) images of 11 healthy feet were acquired and analyzed with 3D software. The mean range of joint space width changes of each joint was computed from the changes in individual image pairs.Results: 3D analysis software was used to analyze the medial part of the Lisfranc complex. In this sample of healthy feet, the changes in the joint spaces in the medial part of Lisfranc complex, calculated with 3D analysis software, was less than 0.6 mm. The distance between bones increased or decreased, depending on which part of the joint surface the measurements were taken.Conclusion: In this study, we present a 3D analysis method to evaluate midfoot joint space width changes. Our analysis revealed that in healthy feet there are only minimal changes in the joint space width between weightbearing and non-weightbearing indicating minimal movement of the midtarsal joints. The 3D analysis of weightbearing CBCT data provides a promising tool for analyzing the small midfoot joints in a variety of conditions.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"959-966"},"PeriodicalIF":1.1,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141750778","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

Role of neuroimaging markers on predicting of idiopathic intracranial hypertension. 神经影像标记对预测特发性颅内高压的作用。

IF 1.1 4区医学

Acta radiologica Pub Date : 2024-08-01 Epub Date: 2024-06-13 DOI: 10.1177/02841851241256008

Ayşe Özlem Balık, Okan Akıncı, Selçuk Yıldız, Buse Rahime Hasırcı Bayır, Can Ulutaş

{"title":"Role of neuroimaging markers on predicting of idiopathic intracranial hypertension.","authors":"Ayşe Özlem Balık, Okan Akıncı, Selçuk Yıldız, Buse Rahime Hasırcı Bayır, Can Ulutaş","doi":"10.1177/02841851241256008","DOIUrl":"10.1177/02841851241256008","url":null,"abstract":"Background: The goals of neuroimaging in idiopathic intracranial hypertension (IIH) are the exclusion of mimickers and effective management of disease. In recent studies, several imaging markers have been identified as potential predictors of IIH.Purpose: To investigate the predictive roles of novel radiological markers as the Meckel's cave area, alongside classical radiologic markers in identifying IIH such as the empty sella.Material and methods: The patients were classified according to cerebrospinal fluid (CSF) opening pressure as the IIH group and control group. The observational, case-control study included 22 patients with IIH and 22 controls. Groups were compared for presence of empty sella, Meckel's cave area, fat area of posterior neck, fat thickness of scalp, presence of transverse sinus stenosis, and ophthalmic markers, such as increase of optic nerve (ON) sheath diameter.Results: In the IHH group, higher occurrences of increased ON sheath diameter, ON tortuosity, flattening of the scleral surface, and transverse sinus stenosis were observed (P < 0.001, P < 0.001, P = 0.046, and P = 0.021, respectively). Meckel's cave area and fat area of posterior neck were similar in both groups (P = 0.444 and P = 0.794).Conclusion: Ophthalmic markers and transverse sinus stenosis could be utilized as radiologic features supporting early and precise diagnosis of IIH. However, enlargement of Meckel's cave area and measurements of fatty area of posterior neck are not helpful for diagnosis of IIH.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"999-1006"},"PeriodicalIF":1.1,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141316470","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

Call for a new Editor-in-Chief: Acta Radiologica / Acta Radiologica Open. 征集新主编：Acta Radiologica / Acta Radiologica Open。

IF 1.1 4区医学

Acta radiologica Pub Date : 2024-08-01 DOI: 10.1177/02841851241273971

引用次数: 0

Preliminary differentiation of benign and malignant gastric wall thickening using dual-layer spectral-detector CT. 使用双层光谱探测器 CT 初步区分良性和恶性胃壁增厚。

IF 1.1 4区医学

Acta radiologica Pub Date : 2024-08-01 Epub Date: 2024-07-25 DOI: 10.1177/02841851241260873

Hongjian Li, Qianni Zhu, Linjiang Liu, Haijun Zou, Dayong Gu, Cheng Wu, Weihua Li

{"title":"Preliminary differentiation of benign and malignant gastric wall thickening using dual-layer spectral-detector CT.","authors":"Hongjian Li, Qianni Zhu, Linjiang Liu, Haijun Zou, Dayong Gu, Cheng Wu, Weihua Li","doi":"10.1177/02841851241260873","DOIUrl":"10.1177/02841851241260873","url":null,"abstract":"Background: Dual-layer spectral-detector computed tomography (DLCT) may have the potential to evaluate gastric wall thickening.Purpose: To evaluate the efficacy of DLCT quantitative parameters in differentiating between benign and malignant thickening of the gastric wall.Material and methods: A total of 58 patients with \"gastric wall thickening\" who underwent multi-phase abdominal enhanced DLCT scans were included in this study. Of these patients, 33 were malignant and 25 were benign. Parameters such as iodine concentration (IC), effective atomic number (Zeff), and attenuation of the lesions were measured during the arterial phase (AP) and venous phase (VP). Binary logistic regression was employed to calculate the combined prediction probabilities. The accuracy of the DLCT parameters was assessed using receiver operating characteristic (ROC) curves.Results: The values of IC, nIC, Zeff, normalized Zeff, and attenuation in the AP and VP were significantly higher (all P < 0.05) in the malignant group compared to the benign group. The ROC curves revealed that the IC, Zeff, and attenuation in the VP exhibited high diagnostic performance, with area under the ROC curve (AUC) values of 0.864, 0.862, and 0.840, respectively. The new combination of these three factors and gastric wall thickness had an AUC of 0.884, and the sensitivity and specificity were determined to be 81.8% and 92.0%, respectively.Conclusion: Spectral CT parameters, particularly the combination of gastric wall thickness, attenuation, IC, and Zeff in VP, have value in distinguishing between benign and malignant gastric wall thickening.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"879-888"},"PeriodicalIF":1.1,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141756568","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

Major brain injuries at term continue to influence DTI parameters in adolescents born very preterm: a 13-year follow-up study. 足月时的重大脑损伤继续影响早产青少年的 DTI 参数：一项为期 13 年的随访研究。

IF 1.1 4区医学

Acta radiologica Pub Date : 2024-08-01 Epub Date: 2024-05-17 DOI: 10.1177/02841851241252716

Sirkku Setänen, Harri Merisaari, Virva Saunavaara, Karoliina Uusitalo, Katri Lahti, Peter Ngum, Leena Haataja, Riitta Parkkola

{"title":"Major brain injuries at term continue to influence DTI parameters in adolescents born very preterm: a 13-year follow-up study.","authors":"Sirkku Setänen, Harri Merisaari, Virva Saunavaara, Karoliina Uusitalo, Katri Lahti, Peter Ngum, Leena Haataja, Riitta Parkkola","doi":"10.1177/02841851241252716","DOIUrl":"10.1177/02841851241252716","url":null,"abstract":"Background: Major brain injuries in structural brain magnetic resonance imaging (MRI) at term affect concurrent diffusion tensor imaging (DTI) parameters in very preterm infants. White matter is known to gradually maturate along with increasing gestational age, which is characterized by increasing fractional anisotropy (FA) and decreasing mean diffusivity (MD).Purpose: To study the difference between DTI parameters at term and 13 years in adolescents born very preterm with and without major pathologies in structural brain MRI at term.Material and methods: Adolescents born very preterm (gestational age <32 weeks and/or birth weight ≤1500 g) in 2004-2006 at Turku University Hospital, Finland were included. We evaluated FA and MD at term and 13 years in 18 regions of interest using the JHU-neonate-SS atlas to compare the differences in these parameters between adolescents with and without major injuries identified on MRI at term.Results: A total of 24 adolescents underwent brain MRI including DTI both at term and 13 years. Adolescents with major brain injury pathologies (n = 6) in structural MRI at term had decreased FA in the left corpus callosum and right cingulate gyrus part, and increased MD in the left corpus callosum, right anterior limb of internal capsule, and right posterior limb of the internal capsule at 13 years, in comparison with adolescents without major brain injuries (n = 18) in structural MRI at term.Conclusion: Our findings suggest that major brain injuries identified on structural MRI at term affect brain maturation, with adverse effects in FA and MD still during adolescence.","PeriodicalId":7143,"journal":{"name":"Acta radiologica","volume":" ","pages":"975-981"},"PeriodicalIF":1.1,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140955500","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

Enhancement of image quality in rectal cancer imaging through MRI supplemented with rectal micro-enema. 通过辅以直肠微水肿的核磁共振成像提高直肠癌成像质量。

IF 1.1 4区医学

Acta radiologica Pub Date : 2024-08-01 Epub Date: 2024-05-21 DOI: 10.1177/02841851241256326

Søren Rafael Rafaelsen

引用次数: 0