Radiographics最新文献_第2页

IF 5.2 1区医学

Radiographics Pub Date : 2025-05-01 DOI: 10.1148/rg.240122

Maria Zulfiqar, Parker J Brown, Komal Chughtai, Pooja Navale, Nelly Tan, Motoyo Yano, Asmaa Aamir, Dane Van Tassel, Cary Lynn Siegel, Akira Kawashima

{"title":"Imaging of the Urachus.","authors":"Maria Zulfiqar, Parker J Brown, Komal Chughtai, Pooja Navale, Nelly Tan, Motoyo Yano, Asmaa Aamir, Dane Van Tassel, Cary Lynn Siegel, Akira Kawashima","doi":"10.1148/rg.240122","DOIUrl":"https://doi.org/10.1148/rg.240122","url":null,"abstract":"The urachus is a remnant fibrous cord of the allantois and the ventral aspect of the cloaca that connects the urinary bladder to the anterior abdominal wall at the level of the umbilicus. The authors explore the embryologic origins of the urachus and delineate its normal anatomy, followed by a discussion of urachal pathologic conditions seen with different imaging modalities-including US, CT, and MRI-using a case-based approach. Although it is a vestigial structure, the urachus can harbor significant disease, including congenital anomalies arising secondary to varying degrees of incomplete involution of the urachus and ranging from focal patency (urachal cyst, diverticulum, and sinus) to complete patency (patent urachus). The spectrum of congenital abnormalities can manifest with various clinical findings and is often discovered at imaging when infected. Understanding the embryogenesis of the urachus is therefore crucial for understanding the imaging manifestations of urachal abnormalities. Nonneoplastic urachal masses can be inflammatory and sometimes difficult to differentiate from malignancy. In women, the urachus can be involved by endometriosis. Neoplastic urachal entities can include mucinous cystadenoma, which can rupture with associated mucinous ascites. Adenocarcinoma is the most common urachal malignancy and frequently can extend to involve the urinary bladder. Other malignant urachal entities include urothelial carcinoma and metastasis. Mimics of urachal pathologic conditions can cause diagnostic misperception and include primary bladder malignancy, infections, and dropped gallstones or appendicoliths. This comprehensive overview aims to enhance radiologists' proficiency in recognizing and interpreting urachal abnormalities, thus contributing to improved patient outcomes. ©RSNA, 2025 Supplemental material is available for this article.","PeriodicalId":54512,"journal":{"name":"Radiographics","volume":"45 5","pages":"e240122"},"PeriodicalIF":5.2,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144042517","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

Acute Pancreatitis: Clinical and Morphologic Classification. 急性胰腺炎：临床和形态学分类。

IF 5.2 1区医学

Radiographics Pub Date : 2025-05-01 DOI: 10.1148/rg.240130

María G Gracia Muñoz, Aarón H Pérez Segovia, Irwin Zamora Tapia, Luis F Uscanga Domínguez, José A Cienfuegos Alvear, Gustavo Alonzo Correa, Fernanda Ortiz Haro Y Nassar, Francisco Flores García, Yashant Aswani

引用次数: 0

MRI and US in Hamstring Sports Injury Assessment: Anatomy, Imaging Findings, and Mechanisms of Injury. MRI和US在腿筋运动损伤评估中的应用：解剖学、影像学表现和损伤机制。

IF 5.2 1区医学

Radiographics Pub Date : 2025-05-01 DOI: 10.1148/rg.240061

Agustín M Marrero, Leandro A Mazza, Nicolás Cedola, María F Neville, Ricardo H Trueba, Augusto Napoli, Tomás A Pascual, Cecilia M Velez, Josue Tapia, Micaela A Rabino, Pablo A Eivers, Ricardo Luis Cobeñas

{"title":"MRI and US in Hamstring Sports Injury Assessment: Anatomy, Imaging Findings, and Mechanisms of Injury.","authors":"Agustín M Marrero, Leandro A Mazza, Nicolás Cedola, María F Neville, Ricardo H Trueba, Augusto Napoli, Tomás A Pascual, Cecilia M Velez, Josue Tapia, Micaela A Rabino, Pablo A Eivers, Ricardo Luis Cobeñas","doi":"10.1148/rg.240061","DOIUrl":"https://doi.org/10.1148/rg.240061","url":null,"abstract":"Most muscle tears occur in the lower extremities, especially in the hamstrings. The hamstring muscle complex consists of the semimembranosus (SM), semitendinosus (ST), and biceps femoris (BF) muscles. They originate from the ischial tuberosity, and while the BF inserts into the head of the fibula, the ST and SM muscles attach to the medial aspect of the tibia. The hamstrings are primarily hip extensors and knee flexors. Tears mostly occur during sport practice, particularly during forceful stretching or high-speed running, and typical sites are grouped and classified according to their location within the muscle anatomy. Sprint and stretching injuries typically affect the BF and SM, respectively. MRI and US are key complementary modalities for the diagnosis, treatment, and prognosis of hamstring injuries, as injury length, connective tissue involvement, and tear location determine evolution, recovery strategies, and return to play. ©RSNA, 2025.","PeriodicalId":54512,"journal":{"name":"Radiographics","volume":"45 5","pages":"e240061"},"PeriodicalIF":5.2,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144018972","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: Navigating the Fog: Practical Use of Imaging to Guide HIPEC. 特邀评论：导航雾：实际使用成像指导HIPEC。

IF 5.2 1区医学

Radiographics Pub Date : 2025-05-01 DOI: 10.1148/rg.240234

Nabil Wasif

引用次数: 0

Imaging Spectrum of Typical and Atypical Adenomyosis. 典型和非典型bb0的成像谱。

IF 5.2 1区医学

Radiographics Pub Date : 2025-05-01 DOI: 10.1148/rg.240152

Alice Brandão, Brunna C Oliveira, Ingrid A G Ferreira, Luciana G Matteoni-Athayde, Lucas R Torres, Luciana Belém, Izabela P Franco, Akram M Shaaban, Douglas Rogers, Luciana P Chamié

{"title":"Imaging Spectrum of Typical and Atypical Adenomyosis.","authors":"Alice Brandão, Brunna C Oliveira, Ingrid A G Ferreira, Luciana G Matteoni-Athayde, Lucas R Torres, Luciana Belém, Izabela P Franco, Akram M Shaaban, Douglas Rogers, Luciana P Chamié","doi":"10.1148/rg.240152","DOIUrl":"https://doi.org/10.1148/rg.240152","url":null,"abstract":"Adenomyosis, characterized by heterotopic endometrial tissue within the myometrium, is a common yet poorly understood condition affecting patients of childbearing age. Although typical features of adenomyosis are extensively discussed in the literature, there is no consensus on its imaging classification. The Morphological Uterus Sonographic Assessment (MUSA) consensus statement is a valuable tool for identifying and describing typical adenomyosis imaging features at US. However, for MRI, there is still no standardized consensus for descriptors and subtypes. The diverse atypical manifestations of adenomyosis are a diagnostic challenge. Familiarity with these manifestations is essential for accurate diagnosis, avoiding misdiagnosis, and ensuring optimal clinical management. The authors examine the imaging appearances of typical and atypical adenomyosis at US and MRI, encompassing focal adenomyosis, diffuse adenomyosis, adenomyomas (solid and cystic types), polypoid adenomyomas, adenomyosis during pregnancy, and malignant transformation. The discussion includes clinical, surgical, and pathologic aspects in the differential diagnosis, with consideration of uterine contractions, deep endometriosis with myometrial infiltration, leiomyomas, and accessory cavitated uterine masses. Practical tips are provided to assist radiologists in distinguishing adenomyosis from other conditions. ©RSNA, 2025 Supplemental material is available for this article.","PeriodicalId":54512,"journal":{"name":"Radiographics","volume":"45 5","pages":"e240152"},"PeriodicalIF":5.2,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144058325","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

State of the Art in Imaging of Acute Coronary Syndrome with Nonobstructed Coronary Arteries. 无冠状动脉阻塞的急性冠状动脉综合征的影像学研究进展。

IF 5.2 1区医学

Radiographics Pub Date : 2025-05-01 DOI: 10.1148/rg.240079

César Urtasun-Iriarte, Ana Ezponda, Miguel Barrio-Piqueras, Gorka Bastarrika

{"title":"State of the Art in Imaging of Acute Coronary Syndrome with Nonobstructed Coronary Arteries.","authors":"César Urtasun-Iriarte, Ana Ezponda, Miguel Barrio-Piqueras, Gorka Bastarrika","doi":"10.1148/rg.240079","DOIUrl":"10.1148/rg.240079","url":null,"abstract":"Acute chest pain is a common concern for which patients present to the emergency department. Nonetheless, many patients with acute chest pain indicative of acute coronary syndrome (ACS) show nonobstructed coronary arteries at invasive coronary angiography or coronary CT angiography (CCTA), which is a clinical conundrum in day-to-day practice. Guidelines recommend that the initial course of action for patients experiencing acute chest pain is to exclude extracardiac and cardiac conditions that could cause nonischemic myocardial damage, including aortic dissection, pulmonary embolism, or septic shock. The generic term troponin-positive with nonobstructed coronary arteries (TpNOCA) was coined to refer to patients with nonobstructed coronary arteries who present with clinical symptoms and signs of ACS and increased cardiac troponin levels, electrocardiographic changes, or both. The causes of TpNOCA may be ischemic (eg, myocardial infarction with nonobstructed coronary arteries [MINOCA] or ischemia with nonobstructed coronary arteries [INOCA]) or nonischemic (eg, extracardiac and cardiac entities). MINOCA and INOCA are working diagnostic terms used until a definitive cause is established (eg, coronary plaque rupture, coronary artery dissection, or coronary microvascular disease). Noninvasive cardiac imaging techniques, notably CCTA and cardiac MRI, and ischemia testing are pivotal in evaluating and treating these patients through accurate identification of the underlying cause, improvement in risk stratification, and guidance for clinicians in decision making for treatment and follow-up. ©RSNA, 2025.","PeriodicalId":54512,"journal":{"name":"Radiographics","volume":"45 5","pages":"e240079"},"PeriodicalIF":5.2,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143782021","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: Necessary Paradigm Shifts in Understanding, Diagnosing, and Reporting Secondary Postpregnancy Hemorrhage. 特邀评论：理解、诊断和报告继发性妊娠后出血的必要范式转变。

IF 5.2 1区医学

Radiographics Pub Date : 2025-05-01 DOI: 10.1148/rg.240241

Erin N Gomez

引用次数: 0

Imaging Review of Knee Ligament Reconstructions Other than the Anterior Cruciate Ligament. 除前交叉韧带外膝关节韧带重建的影像学回顾。

IF 5.2 1区医学

Radiographics Pub Date : 2025-05-01 DOI: 10.1148/rg.240109

Thurl Cledera, Kevin Ryan T Yu, Stacey Danica L Gosiaco, Tatiane Cantarelli Rodrigues, Dyan V Flores

{"title":"Imaging Review of Knee Ligament Reconstructions Other than the Anterior Cruciate Ligament.","authors":"Thurl Cledera, Kevin Ryan T Yu, Stacey Danica L Gosiaco, Tatiane Cantarelli Rodrigues, Dyan V Flores","doi":"10.1148/rg.240109","DOIUrl":"10.1148/rg.240109","url":null,"abstract":"Assessment of knee ligament reconstructions other than the anterior cruciate ligament is challenging due to limited data and continuously developing techniques. Imaging is vital to assessment, demonstrating expected postoperative findings, allowing detection of complications, and enabling differentiation of techniques from one another-information that is critical if revision is being contemplated. Stress radiography is useful for evaluating joint stability in the setting of ligament insufficiency. The three-dimensional and multiplanar reconstruction capabilities of CT are highly useful in multiligament reconstruction, allowing unhindered evaluation of the many intersecting bone tunnels. Susceptibility artifacts in MRI can be remedied by use of metal artifact reduction sequences. Each technique, graft, and choice of specific ligaments to reconstruct must be decided on a case-to-case basis. Anatomic reconstruction reproduces the native ligament's anatomy but is more technically complex. Nonanatomic reconstruction is easier to perform but potentially provides less stability. As for graft selection, an autograft weakens another knee stabilizer, but an allograft is more expensive and less readily available. The decision to perform a single-ligament versus combined-ligament reconstruction ultimately rests on the degree of instability and the desire to return to sport. In contrast to single-ligament reconstruction, combined-ligament procedures are at higher risk of postoperative stiffness, arthrofibrosis, and tunnel convergence. Renewed attention to repair along with improvements in patient selection and rehabilitation protocols may change the future of operative treatment of ligament injury, and along with it, radiologic appraisal and reporting. ©RSNA, 2025 Supplemental material is available for this article.","PeriodicalId":54512,"journal":{"name":"Radiographics","volume":"45 5","pages":"e240109"},"PeriodicalIF":5.2,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143782017","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

Cystic Breast Lesions: Diagnostic Approach and US Assessment. 乳腺囊性病变：诊断方法和美国评估。

IF 5.2 1区医学

Radiographics Pub Date : 2025-05-01 DOI: 10.1148/rg.240179

Hyo Soon Lim, Hyo-Jae Lee, Ji Shin Lee, Min Ho Park, Won Gi Jeong, Byung Chan Lee, Seul Kee Kim, Suk Hee Heo

{"title":"Cystic Breast Lesions: Diagnostic Approach and US Assessment.","authors":"Hyo Soon Lim, Hyo-Jae Lee, Ji Shin Lee, Min Ho Park, Won Gi Jeong, Byung Chan Lee, Seul Kee Kim, Suk Hee Heo","doi":"10.1148/rg.240179","DOIUrl":"https://doi.org/10.1148/rg.240179","url":null,"abstract":"Various cystic breast lesions are encountered during screening and diagnostic breast imaging. According to the Breast Imaging Reporting and Data System (BI-RADS) from the American College of Radiology, cystic breast lesions can be classified into the following categories based on sonographic findings: simple cysts, complicated cysts, clustered microcysts, and complex cystic and solid masses. With appropriate technique, simple cysts can be diagnosed easily by satisfying the diagnostic criteria, which include anechoic round or oval lesions with circumscribed margins and posterior enhancement on US images. Simple cysts are categorized as BI-RADS category 2, benign. Complicated cysts contain debris and satisfy all other sonographic criteria for simple cysts, except they are not anechoic. Clustered microcysts are defined as lesions comprising a cluster of small anechoic masses without a solid component. Based on recent investigations, complicated cysts are categorized as BI-RADS category 3, probably benign, whereas clustered microcysts are categorized as BI-RADS category 2. Complex cystic and solid masses contain fluid and solid components and include those with a thick wall, thick septations, an intracystic or mural mass, and both cystic and solid components. They usually are considered BI-RADS category 4, suspicious, and are accompanied by a biopsy recommendation. Radiologists must evaluate cystic lesions carefully, with meticulous technique, and provide appropriate assessment and management recommendations, thereby reducing unnecessary follow-up and biopsies while preventing cancers from being missed or dismissed. ©RSNA, 2025 Supplemental material is available for this article.","PeriodicalId":54512,"journal":{"name":"Radiographics","volume":"45 5","pages":"e240179"},"PeriodicalIF":5.2,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144018969","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

Secondary Postpregnancy Hemorrhage: Guide for Diagnosis and Management. 继发性妊娠后出血：诊断和处理指南。

IF 5.2 1区医学

Radiographics Pub Date : 2025-05-01 DOI: 10.1148/rg.240098

Alyssa Kirsch, Lori Strachowski, Liina Poder, Spencer Behr, Vickie Feldstein, Joelle Harwin, Evan Lehrman, Joseph Rabban, Dorothy Shum, Sara Whetstone, Hailey Choi

{"title":"Secondary Postpregnancy Hemorrhage: Guide for Diagnosis and Management.","authors":"Alyssa Kirsch, Lori Strachowski, Liina Poder, Spencer Behr, Vickie Feldstein, Joelle Harwin, Evan Lehrman, Joseph Rabban, Dorothy Shum, Sara Whetstone, Hailey Choi","doi":"10.1148/rg.240098","DOIUrl":"https://doi.org/10.1148/rg.240098","url":null,"abstract":"Secondary postpregnancy hemorrhage (PPH) is increasing in incidence, especially in developed countries such as the United States. PPH occurs after 24 hours and up to 12 weeks in the postpregnancy period and may be associated with significant maternal morbidity. Common causes of secondary PPH are subinvolution of the placental site (SIPS) and retained or residual products of conception (RPOC). Other less common and rare causes include bleeding diathesis, endo(myo)metritis, gestational trophoblastic disease, and vascular anomalies such as congenital arteriovenous malformation (AVM), iatrogenic arteriovenous fistula, or pseudoaneurysm. A common finding encountered during imaging evaluation of secondary PPH is increased vascularity in the myometrium deep to an implantation site, termed enhanced myometrial vascularity (EMV). EMV typically represents the physiologic reversion of the uterus back to its prepregnancy state. The appearance of EMV varies from mild to marked and is also associated with SIPS and RPOC. Interpretation or reporting of EMV as an AVM or other rare uterine vascular anomaly may lead to unnecessary testing and overtreatment. The authors review placental physiology, describe the causes of secondary PPH and their imaging appearances, and present an algorithm to assist the radiologist in diagnosis of this important condition and management options. ©RSNA, 2025 Supplemental material is available for this article. See the invited commentary by Gomez in this issue.","PeriodicalId":54512,"journal":{"name":"Radiographics","volume":"45 5","pages":"e240098"},"PeriodicalIF":5.2,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144060615","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