Radiology最新文献

{"title":"Navigating the Role of Radiology in the Climate Crisis.","authors":"Jan Vosshenrich","doi":"10.1148/radiol.243165","DOIUrl":"10.1148/radiol.243165","url":null,"abstract":"","PeriodicalId":20896,"journal":{"name":"Radiology","volume":"313 2","pages":"e243165"},"PeriodicalIF":12.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142667768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prognostic Implications of MRI-assessed Intratumoral Fat in Hepatocellular Carcinoma: An Asian and European Cohort Study.","authors":"Hanyu Jiang, Roberto Cannella, Zhenru Wu, Aurélie Beaufrère, Marco Dioguardi Burgio, Riccardo Sartoris, Yanshu Wang, Yun Qin, Jie Chen, Yidi Chen, Weixia Chen, Yujun Shi, Bin Song, Maxime Ronot","doi":"10.1148/radiol.233471","DOIUrl":"10.1148/radiol.233471","url":null,"abstract":"<p><p>Background The clinicopathologic-radiologic and prognostic characteristics of intratumoral fat in hepatocellular carcinoma (HCC) are critical for personalized treatment but remain understudied. Purpose To investigate the clinicopathologic-radiologic associations and prognostic implications of MRI-assessed intratumoral fat in HCCs. Materials and Methods This retrospective cohort study included consecutive adult patients who underwent resection for solitary HCCs and preoperative contrast-enhanced MRI from two tertiary-care hospitals in East Asia (March 2011 to December 2021) and Western Europe (September 2012 to December 2019). MRI scans were independently evaluated by three radiologists at each hospital. Based on Liver Imaging Reporting and Data System (LI-RADS) version 2018, intratumoral fat was defined as \"fat in mass more than adjacent liver,\" and the homogeneous subtype was defined as intratumoral fat \"in absence of mosaic and nodule-in-nodule architecture.\" Recurrence-free survival (RFS) and overall survival (OS) were estimated using the Kaplan-Meier method and compared using the log-rank test. Cox regression analyses were conducted to identify factors associated with RFS and OS. Results A total of 933 patients were included in the Asian (<i>n</i> = 736; median age, 53 years [IQR, 45-62 years]; 626 male) and European (<i>n</i> = 207; median age, 64 years [IQR, 55-70 years]; 161 male) cohorts. MRI-assessed intratumoral fat was detected in 30% (215 of 726) and 31% (64 of 207) of patients in the Asian and European cohorts, respectively (<i>P</i> = .72). In both cohorts, the steatohepatitic subtype, nonperipheral washout, enhancing capsule, and mosaic architecture were more frequent in tumors with intratumoral fat (<i>P</i> value range, <.001 to .04). Intratumoral fat in general was not associated with RFS or OS in either cohort (<i>P</i> value range, .48-.97). However, in the Asian cohort, homogeneous intratumoral fat was associated with longer RFS (hazard ratio [HR], 0.60; <i>P</i> = .009) and OS (HR, 0.33; <i>P</i> = .008) in multivariable Cox regression analyses. Conclusion MRI-assessed intratumoral fat was more frequent in steatohepatitic HCCs and associated with nonperipheral washout, enhancing capsule, and mosaic architecture. Although intratumoral fat was generally nonprognostic, homogeneous intratumoral fat was associated with longer RFS and OS in the Asian cohort. Published under a CC BY 4.0 license. <i>Supplemental material is available for this article.</i> See also the editorial by Harmath in this issue.</p>","PeriodicalId":20896,"journal":{"name":"Radiology","volume":"313 2","pages":"e233471"},"PeriodicalIF":12.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142584115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Case 335.","authors":"Thomas Saliba, Olivier Cappeliez, Sanjiva Pather, Henri Maisonnier","doi":"10.1148/radiol.241601","DOIUrl":"https://doi.org/10.1148/radiol.241601","url":null,"abstract":"<p><strong>History: </strong>An 84-year-old female patient presented for routine CT angiography (CTA) of the arteries of the neck following right carotid endarterectomy for 75% stenosis, which had been performed without incident 2 months prior. The patient had also been diagnosed with 72% stenosis of the left carotid artery, although it was asymptomatic and thus endarterectomy was not required. The medical history included arterial hypertension and an incomplete left bundle branch block. CTA was performed according to standard procedure, with the region of interest to initiate the examination being placed within the aortic arch and contrast material injected at 5 mL/sec via a catheter placed in the left antecubital fossa. The catheter was successfully tested, and the contrast material was subsequently injected without incident, with the patient reporting no pain and the automatic pressure sensor showing no anomalies. The scan was automatically launched because the attenuation within the aortic arch reached 800 HU (Figs 1-3).</p>","PeriodicalId":20896,"journal":{"name":"Radiology","volume":"313 2","pages":"e241601"},"PeriodicalIF":12.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142716987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bronchial Artery Aneurysm with Anomalous Origin from the Left Circumflex Coronary Artery.","authors":"Zhimeng Shen, Peijie Lyu","doi":"10.1148/radiol.241468","DOIUrl":"https://doi.org/10.1148/radiol.241468","url":null,"abstract":"","PeriodicalId":20896,"journal":{"name":"Radiology","volume":"313 2","pages":"e241468"},"PeriodicalIF":12.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142716985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PiSlope: A New CT Metric for Quantifying Airway Remodeling in Chronic Obstructive Pulmonary Disease.","authors":"Surya P Bhatt, Arie Nakhmani, Venkata Sthanam, Abhilash Kizhakke Puliyakote, Joseph M Reinhardt, Sandeep Bodduluri","doi":"10.1148/radiol.240717","DOIUrl":"10.1148/radiol.240717","url":null,"abstract":"<p><p>Background Airway wall thickening is commonly quantified at chest CT with Pi10, the square root of the wall area of a hypothetical airway with a luminal perimeter of 10 mm. Although Pi10 has proven to be a useful construct, it assumes uniform thickening of all airways and considers only a single airway level in summarizing airway remodeling, limiting its accuracy. Purpose To evaluate PiSlope, a new metric for the quantification of airway wall thickening. Materials and Methods In this secondary analysis of data from a multicenter prospective study of individuals who currently smoke or formerly smoked as well as healthy volunteers who never smoked enrolled from January 2008 to June 2011 and followed up longitudinally until September 2022, chest CT images were analyzed section by section to quantify the luminal perimeter and airway wall thickness for each visible airway. Linear regression was used to calculate the slope of the luminal perimeter against wall thickness to determine the PiSlope. PiSlope was normalized by the individual's height squared. Multivariable regression was used to test the associations between airway metrics and respiratory outcomes. Results The mean age of the 8199 participants was 59.5 years ± 9.1 (SD), with 53% male and 67% White participants. With increasing disease severity (ie, Global Initiative for Chronic Obstructive Lung Disease stages 0-4), Pi10 increased (4.26 mm ± 0.23, 4.29 mm ± 0.21, 4.43 mm ± 0.26, 4.51 mm ± 0.28, and 4.53 mm ± 0.27, respectively) and PiSlope decreased (0.38 ± 0.10, 0.38 ± 0.10, 0.35 ± 0.11, 0.33 ± 0.10, and 0.31 ± 0.10) (trend test; both <i>P</i> < .001). Multivariable analyses revealed that PiSlope was associated with dyspnea, respiratory quality of life, 6-minute walk distance, exacerbations, lung function decline, and all-cause mortality, with and without Pi10 being included in the model. Conclusion The new metric PiSlope quantifies airway wall remodeling and shows associations with respiratory symptoms, quality of life, exacerbations, lung function decline, and all-cause mortality. Clinical trial registration no. NCT00608764 © RSNA, 2024 See also the editorial by Lynch in this issue.</p>","PeriodicalId":20896,"journal":{"name":"Radiology","volume":"313 2","pages":"e240717"},"PeriodicalIF":12.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11605105/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142716994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Non-Fluorine 18 Fluorodeoxyglucose-Avid Bone Marrow Metastases at Gallium 68 Fibroblast Activation Protein Inhibitor PET/CT.","authors":"Linwei Li, Yue Chen","doi":"10.1148/radiol.240830","DOIUrl":"10.1148/radiol.240830","url":null,"abstract":"","PeriodicalId":20896,"journal":{"name":"Radiology","volume":"313 2","pages":"e240830"},"PeriodicalIF":12.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142668051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sequential Reading Effects in Digital Breast Tomosynthesis: Improving False-Positive Rates Without Compromising Cancer Detection.","authors":"Mami Iima, Hiroko Satake","doi":"10.1148/radiol.242642","DOIUrl":"https://doi.org/10.1148/radiol.242642","url":null,"abstract":"","PeriodicalId":20896,"journal":{"name":"Radiology","volume":"313 2","pages":"e242642"},"PeriodicalIF":12.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dixon Method in MRI and Virtual Noncalcium Imaging in Dual-Energy CT of Bone Stress Injury: Different Means to (Nearly) the Same Ends.","authors":"Ryan E Breighner","doi":"10.1148/radiol.242970","DOIUrl":"https://doi.org/10.1148/radiol.242970","url":null,"abstract":"","PeriodicalId":20896,"journal":{"name":"Radiology","volume":"313 2","pages":"e242970"},"PeriodicalIF":12.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sex-specific Associations between Left Ventricular Remodeling at MRI and Long-term Cardiovascular Risk.","authors":"Jonathan R Weir-McCall, Catherine A Fitton, Stephen J Gandy, Matthew Lambert, Roberta Littleford, J Graeme Houston, Jill J F Belch","doi":"10.1148/radiol.232997","DOIUrl":"https://doi.org/10.1148/radiol.232997","url":null,"abstract":"<p><p>Background Left ventricular mass (LVM) is an established marker of cardiovascular risk; however, long-term follow-up studies in individuals with low to intermediate risk are lacking. Purpose To assess the sex-specific association of LVM measured with cardiac MRI with cardiovascular outcomes in those with a less than 20% 10-year risk of cardiovascular disease (CVD). Materials and Methods A total of 1528 volunteers older than 40 years of age with no history of CVD, a 10-year risk of CVD of less than 20%, and a B-type natriuretic peptide level greater than their sex-specific median underwent cardiac MRI between June 2008 and February 2013 as part of the Tayside Screening for Cardiac Events, or TASCFORCE, prospective study. LVM was indexed to body surface area, and the LVM-to-volume ratio was calculated. Follow-up for cardiovascular events was performed using national electronic health records. Cox proportional hazard models and Kaplan-Meier curves were applied to assess the impact of LVM. Results A total of 1495 participants (mean age, 54.5 years ± 8.3 [SD]; 925 female, 570 male) completed cardiac MRI, with a median follow-up of 10 years (IQR, 3 years). In female participants, LVM was associated with age, blood pressure, smoking status, and cholesterol level, while in male participants, LVM was associated with age and blood pressure. In female participants, the LVM-to-volume ratio was associated with cardiovascular events (hazard ratio [HR], 2.3 [95% CI: 1.1, 4.9] for the highest quartile vs the lowest quartile), while the LVM was not. In male participants, the LVM was associated with cardiovascular events (HR, 3.2 [95% CI: 1.5,7.0] for the highest quartile vs the lowest quartile), while the LVM-to-volume ratio was not. Conclusion In those with low to intermediate risk without established CVD, different remodeling patterns predict cardiovascular events, with increased LVM predictive in male participants, while LVM-to-volume ratio is predictive in female participants. © RSNA, 2024 <i>Supplemental material is available for this article.</i> See also the editorial by Garot and Duhamel in this issue.</p>","PeriodicalId":20896,"journal":{"name":"Radiology","volume":"313 2","pages":"e232997"},"PeriodicalIF":12.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142584093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interstitial Lung Abnormalities on Unselected Abdominal and Thoracoabdominal CT Scans in 21 118 Patients.","authors":"Nicola Sverzellati, Gianluca Milanese, Christopher J Ryerson, Hiroto Hatabu, Simon L F Walsh, Vito Roberto Papapietro, Silvia Eleonora Gazzani, Emanuele Bacchini, Francesco Specchia, Cristina Marrocchio, Francesca Milone, Roberta Eufrasia Ledda, Mario Silva, Elisa Iezzi","doi":"10.1148/radiol.233374","DOIUrl":"10.1148/radiol.233374","url":null,"abstract":"<p><p>Background Interstitial lung abnormalities (ILAs) are incidental CT findings suggesting early interstitial lung disease. However ILA prevalence data are scarce in an unselected routine clinical setting. Purpose To evaluate the prevalence, underreporting rate, and potential clinical impact of ILAs recognizable on either abdominal CT scans or thoracoabdominal CT scans in a routine clinical setting of unselected patients. Materials and Methods Consecutive abdominal or thoracoabdominal CT scans from unselected inpatients and outpatients (age, ≥50 years; without any available prior chest CT and no clinical history of disease against the diagnosis of ILA) from a single-center tertiary hospital between January 2008 and December 2015 were retrospectively reviewed for the presence of ILAs and compared with the original clinical reports from the CT scans. Radiologic progression of ILA was evaluated by comparing consecutive CT points. Multivariable models adjusted for age, sex, race/ethnicity, oncologic disease, and cardiovascular disease were used to assess factors associated with odds of ILAs progression and all-cause and cause-specific mortality. Results Among 21 118 patients (median age, 72 years [IQR, 64-80 years]; 11 028 [52.2%] female patients), ILAs were observed in 362 (1.7%) patients, notably in 222 (1.0%) patients who had fibrotic features at CT. ILAs were recognized in 122 of 9415 (1.3%) and 240 of 11 703 (2.1%) of abdominal and thoracoabdominal CT scans, respectively. Of available original reports for 360 patients, 158 (43.9%) of all ILAs were not originally reported. Traction bronchiectasis index was the CT factor associated with higher odds of ILA progression (odds ratio, 3.47; 95% CI: 1.83, 6.58; <i>P</i> < .001). Fibrotic ILAs had a fourfold higher risk of respiratory-cause mortality (hazard ratio, 4.01; 95% CI: 2.02, 7.92; <i>P</i> < .001) compared with patients without ILAs. Conclusion The prevalence of ILAs was 1.7% in a large, unselected sample of patients who underwent either abdominal or thoracoabdominal CT for various clinical indications. Despite their prognostic significance, 43.9% of ILAs were unreported. © RSNA, 2024 <i>Supplemental material is available for this article.</i> See also the editorial by Hata in this issue.</p>","PeriodicalId":20896,"journal":{"name":"Radiology","volume":"313 2","pages":"e233374"},"PeriodicalIF":12.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142666400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}