Radiographics最新文献

{"title":"Invited Commentary: Hepatobiliary and Pancreatic Neoplasms: Predictive Imaging Meets Personalized Therapy.","authors":"Maxime Ronot","doi":"10.1148/rg.240222","DOIUrl":"10.1148/rg.240222","url":null,"abstract":"","PeriodicalId":54512,"journal":{"name":"Radiographics","volume":"45 3","pages":"e240222"},"PeriodicalIF":5.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143366827","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":"Editor's Recognition Awards.","authors":"Christine Cooky Menias","doi":"10.1148/rg.259004","DOIUrl":"https://doi.org/10.1148/rg.259004","url":null,"abstract":"","PeriodicalId":54512,"journal":{"name":"Radiographics","volume":"45 3","pages":"e259004"},"PeriodicalIF":5.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143525285","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":"Concurrent Chest and Abdominal CT: Managing Pitfalls of Splitting Interpretation by Subspecialty.","authors":"Zachary S Kelm, Eyal D Ron, Michael C Olson, Christopher L Welle, Tucker F Johnson, James H Boyum","doi":"10.1148/rg.240069","DOIUrl":"10.1148/rg.240069","url":null,"abstract":"<p><p>Radiology practices may choose to divide interpretation of concurrently acquired chest and abdominal CT examinations between two readers. Although this approach has benefits, there also are potential pitfalls that should be recognized and avoided, such as differences in contrast material timing that can cause an abdominal finding to be more conspicuous on the chest examination, and vice versa. Pathologic lesions that cross the boundary between the chest and abdomen, as well as precise delineation of that boundary, also create issues. Additionally, there can be uncertainty regarding the responsibilities as a secondary reader for the region of overlap. Example cases demonstrate these potential pitfalls, and strategies are provided for mitigating or avoiding them. These cases include pancreatic adenocarcinoma visualized only on the chest images, pulmonary embolism best seen on the abdominal images, and metastatic gastrointestinal stromal tumor invading into the chest. Mitigation strategies discussed include appropriate search pattern modification as well as the importance of establishing guidelines and facilitating ease of communication between radiologists. ^©RSNA, 2025.</p>","PeriodicalId":54512,"journal":{"name":"Radiographics","volume":"45 3","pages":"e240069"},"PeriodicalIF":5.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143416376","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":"Body MRI Approach: Guide for Common Indications.","authors":"Mark J Hoegger, Tyler J Fraum, Vincent T Stephen, Daniel R Ludwig, Malak Itani, Michael H Lanier, Mohammed Z Rajput, Richard Tsai, Yasasvi Tadavarthi, Donald Zhang, Utkarsh Parwal, Anup S Shetty","doi":"10.1148/rg.240154","DOIUrl":"10.1148/rg.240154","url":null,"abstract":"","PeriodicalId":54512,"journal":{"name":"Radiographics","volume":"45 3","pages":"e240154"},"PeriodicalIF":5.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143470123","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":"Invited Commentary: Quantitative Stress Perfusion: A New Era and Evolving Technology.","authors":"Kwan Ho Gordon Leung, Ming-Yen Ng","doi":"10.1148/rg.240229","DOIUrl":"10.1148/rg.240229","url":null,"abstract":"","PeriodicalId":54512,"journal":{"name":"Radiographics","volume":"45 3","pages":"e240229"},"PeriodicalIF":5.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143470107","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":"Routine and Advanced Neurologic Imaging at 0.55-T MRI: Opportunities and Challenges.","authors":"Lauren J Kelsey, Nicole Seiberlich, Joel Morehouse, Jacob Richardson, Ashok Srinivasan, Jayapalli Bapuraj, John Kim, Vikas Gulani, Shruti Mishra","doi":"10.1148/rg.240076","DOIUrl":"10.1148/rg.240076","url":null,"abstract":"<p><p>MRI for diagnosis and assessment of neurologic conditions is most commonly performed on 1.5- and 3.0-T systems. Recently, motivation to increase accessibility to MRI, coupled with advances in software and hardware, has sparked renewed interest in MRI systems with magnetic field strengths ranging from 0.064 T to 1.0 T. The authors describe the protocols and indications for neuroradiologic imaging performed on a modern whole-body, mid-field-strength 0.55-T MRI system. The overall image quality of routine clinical brain and spinal imaging at 0.55 T is lower than that at 1.5 T but still diagnostic for many routine indications. The intrinsic benefits of using a lower main magnetic field strength may be leveraged for imaging intracranial and spinal hardware due to diminished susceptibility artifacts and pose new opportunities for increased MRI safety. In addition, the imaging of structures that are near bone, such as the internal auditory canal, may represent an opportunity for additional use of MRI with lower magnetic field strengths due to reduced magnetic susceptibility differences and greater field homogeneity. However, lower main magnetic field strength limits the use of frequency-selective fat saturation and introduces challenges for Dixon-based fat suppression. The limitations of one specific 0.55-T system include acceleration artifacts and insufficient signal intensity of dynamic contrast-enhanced susceptibility-weighted perfusion imaging, which precluded the evaluation of multiple sclerosis and primary brain tumors. Investigations of ongoing technical developments of 0.55-T MRI include exploring sequence structures that are particularly advantageous at lower field strengths, such as those in balanced steady-state free-precession and single-shot fast spin-echo MRI, which are being used in functional and fetal MRI. Deep learning algorithms are also being used to improve image quality while maintaining or reducing imaging times. ^©RSNA, 2025 Supplemental material is available for this article. See the invited commentary by Pai and Jabehdar Maralani in this issue.</p>","PeriodicalId":54512,"journal":{"name":"Radiographics","volume":"45 3","pages":"e240076"},"PeriodicalIF":5.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143416316","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":"Training Pathways in Nuclear Medicine: Opportunities and Challenges.","authors":"Moozhan Nikpanah, Christian J Gomez, Sara Sheikhbahaei, Jonathan E McConathy, Babak Saboury","doi":"10.1148/rg.240201","DOIUrl":"10.1148/rg.240201","url":null,"abstract":"","PeriodicalId":54512,"journal":{"name":"Radiographics","volume":"45 3","pages":"e240201"},"PeriodicalIF":5.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143416405","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":"Erratum for: Getting Started with Photon-counting CT: Optimizing Your Setup for Success.","authors":"Fides R Schwartz, Bari Dane, Shan Su, Khanin Khanungwanitkul, Liqiang Ren, Lakshmi Ananthakrishnan","doi":"10.1148/rg.259003","DOIUrl":"https://doi.org/10.1148/rg.259003","url":null,"abstract":"","PeriodicalId":54512,"journal":{"name":"Radiographics","volume":"45 3","pages":"e259003"},"PeriodicalIF":5.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143525286","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":"Differential Diagnosis of Hydrops Fetalis: An Imaging Guide.","authors":"Susan E Dalton, April M Griffith, Anne M Kennedy, Paula J Woodward","doi":"10.1148/rg.240158","DOIUrl":"10.1148/rg.240158","url":null,"abstract":"<p><p>Hydrops fetalis is a critical diagnosis given the poor prognosis and vast differential of potential causes. After a detailed anatomic survey, the first step in differentiating among the various causes is measurement of the middle cerebral artery peak systolic velocity to evaluate for anemia. Anemia is the key decision point in the diagnostic algorithm that categorizes hydrops. This approach is more practical than an immune versus nonimmune classification because it capitalizes on clues available at the time of sonographic diagnosis and expedites care toward possible therapies, such as intrauterine transfusion. The causes of hydrops that share the underlying physiology of fetal anemia include alloimmunization, which accounts for 10% of cases, congenital infections, hemoglobinopathies, and fetomaternal hemorrhage. After ruling out anemia, the differential diagnosis expands to cardiovascular disorders (20%-28% of cases), genetic abnormalities (10%-30% of cases), fetal masses (eg, congenital lung masses, sacrococcygeal teratomas), and monochorionic twin complications. Even after a thorough evaluation, 15% of hydrops cases remain of unknown cause. There are treatments available for select disorders that have the potential to reverse the signs of hydrops. Several imaging pitfalls should be avoided when establishing the diagnosis of hydrops, such as mistaking abdominal wall muscles, physiologic pericardial fluid, or thick subcutaneous tissue as pathologic fluid accumulation. A practical and comprehensive approach to the diagnostic evaluation for hydrops fetalis avoids delays in diagnosis and expedites potential life-saving treatment of this disorder. ^©RSNA, 2025 Supplemental material is available for this article.</p>","PeriodicalId":54512,"journal":{"name":"Radiographics","volume":"45 3","pages":"e240158"},"PeriodicalIF":5.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143470126","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":"Quantitative Stress First-Pass Perfusion Cardiac MRI: State of the Art.","authors":"Roberta Catania, Sandra Quinn, Amir A Rahsepar, Tugce Agirlar Trabzonlu, Jay B Bisen, Kelvin Chow, Daniel C Lee, Ryan Avery, Peter Kellman, Bradley D Allen","doi":"10.1148/rg.240115","DOIUrl":"10.1148/rg.240115","url":null,"abstract":"<p><p>Quantitative stress perfusion (qPerf) cardiac magnetic resonance (CMR) imaging is a noninvasive approach used to quantify myocardial blood flow (MBF). Compared with visual analysis, qPerf CMR has superior diagnostic accuracy in the detection of myocardial ischemia and assessment of ischemic burden. In the evaluation of epicardial coronary artery disease (CAD), qPerf CMR improves the distinction of single-vessel from multivessel disease, yielding a more accurate estimate of the ischemic burden, and in turn improving patient management. In patients with chest pain without epicardial CAD, the findings of lower stress MBF and myocardial perfusion reserve (MPR) allow the diagnosis of microvascular dysfunction (MVD). Given its accuracy, MBF quantification with stress CMR has been introduced into the most recent recommendations for diagnosis in patients who have ischemia with nonobstructive CAD. Recent studies have shown a greater decrease in stress MBF and MPR in patients with three-vessel CAD compared with those in patients with MVD, demonstrating an important role that quantitative stress CMR can play in differentiating these etiologies in patients with stable angina. In cases of hypertrophic cardiomyopathy and cardiac amyloidosis, qPerf CMR aids in early diagnosis of ischemia and in risk assessment. Ischemia also results from alterations in hemodynamics that may occur with valve disease such as aortic stenosis or in cases of heart failure. qPerf CMR has emerged as a useful noninvasive tool for detection of cardiac allograft vasculopathy in patients who have undergone heart transplant. The authors review the basic principles and current primary clinical applications of qPerf CMR. ^©RSNA, 2025 Supplemental material is available for this article. See the invited commentary by Leung and Ng in this issue.</p>","PeriodicalId":54512,"journal":{"name":"Radiographics","volume":"45 3","pages":"e240115"},"PeriodicalIF":5.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143470110","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}