Radiographics最新文献_第8页

Classic Signs on Chest Radiographs: Primer for Residents. 胸片上的经典征象：住院医师入门。

IF 5.2 1区医学

Radiographics Pub Date : 2025-02-01 DOI: 10.1148/rg.240155

Furkan Ufuk, Iclal Ocak, Erhan Akpinar, Lydia Chelala, Luis Landeras, Steven Montner

引用次数: 0

Complications of CT- and US-guided Thoracic Interventional Procedures. CT 和 US 引导下的胸腔介入手术并发症。

IF 5.2 1区医学

Radiographics Pub Date : 2025-02-01 DOI: 10.1148/rg.240146

Valèria Richart, Llúria Cornellas, Blanca Domenech-Ximenos, Judit Mestres, Mariana Benegas, Marcelo Sánchez, Ivan Vollmer

引用次数: 0

Disseminated Cysticercosis. 囊虫病传播。

IF 5.2 1区医学

Radiographics Pub Date : 2025-02-01 DOI: 10.1148/rg.240244

Kin Fen Kevin Fung, Irene Dixe de Oliveira Santo, Atefe Pooyan, Foram Gala, Yashant Aswani

引用次数: 0

Anatomic Approach to Fetal Hydrocephalus. 胎儿脑积水的解剖入路。

IF 5.2 1区医学

Radiographics Pub Date : 2025-02-01 DOI: 10.1148/rg.240071

April M Griffith, Susan E Dalton, Paula J Woodward, Jennison N Cull, Anne M Kennedy

{"title":"Anatomic Approach to Fetal Hydrocephalus.","authors":"April M Griffith, Susan E Dalton, Paula J Woodward, Jennison N Cull, Anne M Kennedy","doi":"10.1148/rg.240071","DOIUrl":"10.1148/rg.240071","url":null,"abstract":"Hydrocephalus is an imprecise term and refers to the imbalance of brain parenchyma and cerebral spinal fluid in the cranial vault. Ventriculomegaly, or enlargement of the ventricular system, is often the more precise term and is therefore preferred. Appropriate imaging and measurement techniques are critical to detect ventriculomegaly and grade its severity. There is a broad differential diagnosis with resultant highly variable clinical outcomes. Furthermore, some causes have a substantial recurrence risk in future pregnancies. Therefore, accurate diagnosis of the underlying cause is essential for pregnancy management and patient counseling. Understanding ventricular anatomy and correct measurement technique is needed for assessing and grading ventriculomegaly. This is achieved through an anatomically based approach to reach the differential diagnosis, with a focus on key decision points for delineating causes of ventriculomegaly. In particular, the posterior fossa is first assessed for structural or developmental abnormalities; then, midline brain development abnormalities and associated pathologic conditions are reviewed; and last, the cortical mantle is assessed for developmental or destructive processes. In each category, different entities are highlighted, with a particular focus on illustrating the US and MRI findings of the underlying condition and tips to differentiate similar-appearing entities. Ultimately, the informed fetal radiologist can use the proposed algorithmic approach to hydrocephalus to narrow the differential and thus provide vital diagnostic information for pregnancy counseling and management discussions. ©RSNA, 2025.","PeriodicalId":54512,"journal":{"name":"Radiographics","volume":"45 2","pages":"e240071"},"PeriodicalIF":5.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142959008","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}

引用次数: 0

Image-guided Interventions for Core Muscle Injury and Other Disorders in the Pubic Symphysis. 耻骨联合核心肌损伤和其他疾病的图像引导干预。

IF 5.2 1区医学

Radiographics Pub Date : 2025-02-01 DOI: 10.1148/rg.240148

Dyan V Flores, Juvel Lee, Timothy Murray

{"title":"Image-guided Interventions for Core Muscle Injury and Other Disorders in the Pubic Symphysis.","authors":"Dyan V Flores, Juvel Lee, Timothy Murray","doi":"10.1148/rg.240148","DOIUrl":"10.1148/rg.240148","url":null,"abstract":"Formerly termed sports hernia or athletic pubalgia, core muscle injury (CMI) encompasses abnormality of structures within the so-called core, which is essentially the hip, abdomen, and pubis. Compared with data on image-guided procedures of other joints, information regarding procedures performed to address CMI and other disorders of the pubic symphysis is lacking. These procedures can be daunting given the joint's small size, surrounding critical neurovascular structures, and three-dimensional anatomy. Nonetheless, various diagnostic and therapeutic image-guided interventions in this region can be successfully performed by the astute radiologist. Diagnostic symphyseography provides a contrast agent map that allows detection of symphyseal cleft injuries. Although largely supplanted with MRI, which can help depict additional findings such as bone marrow edema and atypical cleft injuries, symphyseography performed alongside local anesthetic and steroid injection remains a valuable conservative therapeutic strategy in the treatment of CMI. US-guided percutaneous dry needling (tenotomy) is thought to promote tendon healing by using repeated needle passage to convert chronic degeneration of tendinosis into an acute inflammatory condition; the distal rectus abdominis and/or proximal adductor longus may be targeted. Other perisymphyseal procedures include joint aspiration, biopsy, and osteoplasty. Fluoroscopic- or US-guided joint aspiration aids in evaluation of arthropathies. While bone and soft-tissue biopsies are best performed under CT guidance, fluoroscopy and US are viable alternatives in the evaluation of lesions with significant extraosseous components. Percutaneous osteoplasty is a minimally invasive palliative procedure that stabilizes pubic metastases by injecting bone cement; it can be performed under fluoroscopic or CT guidance by itself or with thermal ablation to maximize pain relief. ©RSNA, 2025 Supplemental material is available for this article.","PeriodicalId":54512,"journal":{"name":"Radiographics","volume":"45 2","pages":"e240148"},"PeriodicalIF":5.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143069265","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}

引用次数: 0

Hypointense Findings on Hepatobiliary Phase MR Images. 肝胆期MR低信号表现。

IF 5.2 1区医学

Radiographics Pub Date : 2025-02-01 DOI: 10.1148/rg.240090

Kelly C Harper, Maxime Ronot, Michael L Wells, Antonio Luna, Ahmed Ba-Ssalamah, Jin Wang, Christopher L Welle, Alvin C Silva, Jeff Fidler, Sudhakar K Venkatesh

{"title":"Hypointense Findings on Hepatobiliary Phase MR Images.","authors":"Kelly C Harper, Maxime Ronot, Michael L Wells, Antonio Luna, Ahmed Ba-Ssalamah, Jin Wang, Christopher L Welle, Alvin C Silva, Jeff Fidler, Sudhakar K Venkatesh","doi":"10.1148/rg.240090","DOIUrl":"10.1148/rg.240090","url":null,"abstract":"Hepatobiliary (HB) contrast agents are increasingly valuable diagnostic tools in MRI, offering a wider range of applications as their clinical use expands. Normal hepatocytes take up HB contrast agents, which are subsequently excreted in bile. This property creates a distinct HB phase providing valuable insights into liver function and biliary anatomy. HB contrast agents can assist in diagnosing a broad spectrum of HB diseases ranging from diffuse liver disease to focal hepatic lesions and can delineate anatomic details of the biliary tree. Understanding the pharmacodynamics of HB contrast agents is paramount to their appropriate clinical application and troubleshooting. HB phase hypointensity can arise from various diffuse and focal abnormalities that may or may not be associated with biliary excretion. Hypointensity during the HB phase can be broadly grouped into diffuse hypointensity, regional hypointensity, and focal lesions for better evaluation of the underlying cause. Abnormalities may arise from hepatic parenchymal, biliary, or vascular causes, or a combination thereof in each of the broad groups. Recognition of a suboptimal hypointense HB phase is important in the evaluation of focal lesions in patients with cirrhosis of the liver and particularly in those with hepatocellular carcinoma. Furthermore, hypointensity can also suggest the aggressiveness of malignancies such as hepatocellular carcinoma or colorectal metastases, which may affect the prognosis. It is essential to consider all imaging findings relative to the clinical context and the complete set of the MRI sequences performed for diagnosis of liver abnormalities. This comprehensive approach minimizes the risk of misinterpretation or pitfalls. The authors aim to equip radiologists with key insights for accurately understanding hypointensity in the HB phase, ultimately leading to more accurate diagnoses. ©RSNA, 2025 Supplemental material is available for this article.","PeriodicalId":54512,"journal":{"name":"Radiographics","volume":"45 2","pages":"e240090"},"PeriodicalIF":5.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143069067","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}

引用次数: 0

False-Negative Review from the Mammography Audit: Refining Breast Imaging Practice. 乳房x线摄影审核的假阴性评论：改进乳房成像实践。

IF 5.2 1区医学

Radiographics Pub Date : 2025-02-01 DOI: 10.1148/rg.240128

Heather V Garrett, Jennie E Brodsky, Tabassum Ahmad, Christina M Doherty, Michelle V Lee, Elizabeth McFarland, Debbie L Bennett

{"title":"False-Negative Review from the Mammography Audit: Refining Breast Imaging Practice.","authors":"Heather V Garrett, Jennie E Brodsky, Tabassum Ahmad, Christina M Doherty, Michelle V Lee, Elizabeth McFarland, Debbie L Bennett","doi":"10.1148/rg.240128","DOIUrl":"10.1148/rg.240128","url":null,"abstract":"Annual review of false-negative (FN) mammograms is a mandatory and critical component of the Mammography Quality Standards Act (MQSA) annual mammography audit. FN review can help hone reading skills and improve the ability to detect cancers at mammography. Subtle architectural distortion, asymmetries (seen only on one view), small lesions, lesions with probably benign appearance (circumscribed regular borders), isolated microcalcifications, and skin thickening are the most common mammographic findings when the malignancy is visible at retrospective review of FN mammograms. Most FN mammograms are not due to radiologist error. There are common and predictable settings in which FN mammograms occur. Patient factors associated with elevated FN mammograms include dense breasts, elevated lifetime risk of breast cancer, and personal history of breast cancer treated with lumpectomy and radiation therapy. About half of FN cancers are detected by supplemental screening examinations and half manifest clinically. The most common manifesting symptoms for interval cancers are a palpable abnormality, nipple discharge, and skin changes. Interval cancers can have more aggressive pathologic features and higher rates of node positivity. The FN review includes Breast Imaging Reporting and Data System (BI-RADS) 3 cases that develop a cancer diagnosis during surveillance. Nonbreast malignancies diagnosed as interval cancers (most commonly lymphoma and metastatic disease) do not need to be counted as FNs for audit purposes. The FN review and annual audit are confidential processes that protect patient and radiologist information while allowing meaningful quality control and improvement. Although FN mammograms are rare, review of these cases is a valuable educational tool. The slide presentation from the RSNA Annual Meeting is available for this article. ©RSNA, 2025.","PeriodicalId":54512,"journal":{"name":"Radiographics","volume":"45 2","pages":"e240128"},"PeriodicalIF":5.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142959029","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}

引用次数: 0

Lessons Learned in Emergency Pelvic and First-Trimester US: Focus on Cognitive Biases. 急诊盆腔和妊娠早期美国的经验教训：关注认知偏差。

IF 5.2 1区医学

Radiographics Pub Date : 2025-02-01 DOI: 10.1148/rg.240101

Melissa F Tannenbaum, Karen S Lee, Se-Young Yoon, Robin B Levenson

{"title":"Lessons Learned in Emergency Pelvic and First-Trimester US: Focus on Cognitive Biases.","authors":"Melissa F Tannenbaum, Karen S Lee, Se-Young Yoon, Robin B Levenson","doi":"10.1148/rg.240101","DOIUrl":"10.1148/rg.240101","url":null,"abstract":"Nonpregnant and pregnant women who present with acute pelvic pain can pose a diagnostic challenge in the emergency setting. The clinical presentation is often nonspecific, and the differential diagnosis may be very broad. These symptoms are often indications for pelvic US, which is the primary imaging modality when an obstetric or gynecologic cause is suspected. Interpretation of pelvic US may be challenging and a source of confusion and misinterpretation for radiologists. Additionally, cognitive biases in imaging interpretation can contribute to diagnostic errors. Cognitive biases represent systematic errors due to failure of the mental shortcuts that the brain subconsciously uses to produce quicker judgments. There are multiple different types of cognitive biases, all of which may lead to perceptual and interpretive errors. Familiarity with common and uncommon pelvic US findings in the setting of pelvic pain is imperative to assist with prompt and accurate diagnosis. Awareness of potential biases when interpreting pelvic US findings further helps hone the interpretation. The authors illustrate the imaging findings in several peer learning cases of nonpregnant and first-trimester pregnant patients who presented with acute pelvic pain in the emergency setting. Several nonobstetric and nongynecologic causes of acute pelvic pain are included for which pelvic US was the first imaging modality used in diagnosis. Diagnostic errors and cognitive biases in interpretation related to these cases are highlighted. The radiologist's awareness of potential cognitive biases in image interpretation may help to refine the differential diagnosis and mitigate errors. ©RSNA, 2025 Supplemental material is available for this article.","PeriodicalId":54512,"journal":{"name":"Radiographics","volume":"45 2","pages":"e240101"},"PeriodicalIF":5.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143029443","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}

引用次数: 0

Cardiac MRI in Heart Transplantation: Approaches and Clinical Insights. 心脏移植中的心脏磁共振成像：方法和临床启示。

IF 5.2 1区医学

Radiographics Pub Date : 2025-02-01 DOI: 10.1148/rg.240142

Sandra Quinn, Roberta Catania, Vinesh Appadurai, Jane E Wilcox, Richard L Weinberg, Daniel C Lee, James C Carr, Michael Markl, Bradley D Allen, Ryan Avery

{"title":"Cardiac MRI in Heart Transplantation: Approaches and Clinical Insights.","authors":"Sandra Quinn, Roberta Catania, Vinesh Appadurai, Jane E Wilcox, Richard L Weinberg, Daniel C Lee, James C Carr, Michael Markl, Bradley D Allen, Ryan Avery","doi":"10.1148/rg.240142","DOIUrl":"10.1148/rg.240142","url":null,"abstract":"Orthotopic heart transplant (OHT) is a well-established therapy for end-stage heart failure that leads to improved long-term survival rates, with careful allograft surveillance essential for optimizing clinical outcomes after OHT. Unfortunately, complications can arise after OHT that can compromise the success of the OHT. Cardiac MRI is continually evolving, with a range of advanced techniques that can be applied to evaluate allograft structure and function. Understanding the unique features of cardiac MRI in OHT recipients, identifying findings suggestive of acute or chronic complications, and recognizing the limitations of this imaging modality are essential for accurate interpretation of cardiac MRI findings and subsequent clinical reporting. The authors address the anticipated postsurgical anatomy and functionality of the OHT. Emphasis is placed on the advanced functional and tissue characterization features that can be seen in the stable OHT recipient, including global longitudinal strain, late gadolinium enhancement, native T1 and T2 mapping, and extracellular volume fraction. Subsequently, the evidence for detection of acute cardiac allograft rejection with cardiac MRI comprehensive tissue characterization techniques and the role of quantitative myocardial perfusion for cardiac allograft vasculopathy screening are discussed, with reference to their comparative standard of reference screening tests, including endomyocardial biopsy, invasive coronary angiography, and myocardial rest and stress perfusion PET/CT. Cardiac MRI has been included in contemporary OHT management guidelines and therefore can be considered a complementary tool for allograft evaluation. The authors demonstrate the complementary role cardiac MRI can play in cardiac allograft surveillance, with clinical examples. ©RSNA, 2025 Supplemental material is available for this article. See the invited commentary by Agarwal in this issue.","PeriodicalId":54512,"journal":{"name":"Radiographics","volume":"45 2","pages":"e240142"},"PeriodicalIF":5.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143068748","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}

引用次数: 0

Invited Commentary: Cardiac MRI in Orthotopic Heart Transplantation: A New Frontier? 特邀评论：心脏MRI在原位心脏移植中的应用：一个新的前沿？

IF 5.2 1区医学

Radiographics Pub Date : 2025-02-01 DOI: 10.1148/rg.250005

Saurabh Agarwal

引用次数: 0