{"title":"Imaging in Hepatocellular Carcinoma: What's New?","authors":"Giulia Grazzini, Giuditta Chiti, Giulia Zantonelli, Benedetta Matteuzzi, Silvia Pradella, Vittorio Miele","doi":"10.1053/j.sult.2023.03.002","DOIUrl":"10.1053/j.sult.2023.03.002","url":null,"abstract":"<div><p><span>Hepatocellular carcinoma<span> (HCC) is the most common liver cancer and is one of the uppermost 2 causes of cancer death. About 70%-90% of HCCs develop within a cirrhotic liver. According to the most recent guidelines, the imaging characteristics of HCC on contrast-enhanced Computed Tomography<span><span> (CT) or Magnetic Resonance Imaging (MRI) are generally satisfactory to make a diagnosis. Recently, new advanced techniques such as contrast-enhanced ultrasound, CT perfusion, Dynamic Contrast-enhanced MRI, </span>diffusion weighted imaging and </span></span></span>radiomics have increased the diagnostic accuracy and characterization of HCC. This review illustrates the state of the art and recent advances in non-invasive imaging evaluation of HCC.</p></div>","PeriodicalId":49541,"journal":{"name":"Seminars in Ultrasound Ct and Mri","volume":"44 3","pages":"Pages 145-161"},"PeriodicalIF":1.1,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9895288","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}
Francesca Giudice MD , Sergio Salerno MD , Giuseppe Badalamenti MD , Gianluca Muto MD , Antonio Pinto MD , Massimo Galia MD , Francesco Prinzi BE , Salvatore Vitabile , Giuseppe Lo Re MD
{"title":"Gastrointestinal Stromal Tumors: Diagnosis, Follow-up and Role of Radiomics in a Single Center Experience","authors":"Francesca Giudice MD , Sergio Salerno MD , Giuseppe Badalamenti MD , Gianluca Muto MD , Antonio Pinto MD , Massimo Galia MD , Francesco Prinzi BE , Salvatore Vitabile , Giuseppe Lo Re MD","doi":"10.1053/j.sult.2023.03.005","DOIUrl":"10.1053/j.sult.2023.03.005","url":null,"abstract":"<div><p><span>Gastrointestinal stromal tumors<span> (GISTs) arise from the interstitial cells of Cajal<span> in the gastrointestinal tract<span> and are the most common intestinal tumors. Usually GISTs are asymptomatic, especially small tumors that may not cause any symptoms and may be found accidentally on abdominal </span></span></span></span>CT scans<span>. Discovering of inhibitor of receptor tyrosine kinases<span> has changed the outcome of patients with high-risk GISTs. This paper will focus on the role of imaging in diagnosis, characterization and follow-up. We shall also report our local experience in radiomics evaluation of GISTs.</span></span></p></div>","PeriodicalId":49541,"journal":{"name":"Seminars in Ultrasound Ct and Mri","volume":"44 3","pages":"Pages 194-204"},"PeriodicalIF":1.1,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9911752","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}
Carolina Lanza , Serena Carriero , Pierpaolo Biondetti , Salvatore Alessio Angileri , Gianpaolo Carrafiello , Anna Maria Ierardi
{"title":"Advances in Imaging Guidance During Percutaneous Ablation of Renal Tumors","authors":"Carolina Lanza , Serena Carriero , Pierpaolo Biondetti , Salvatore Alessio Angileri , Gianpaolo Carrafiello , Anna Maria Ierardi","doi":"10.1053/j.sult.2023.03.003","DOIUrl":"10.1053/j.sult.2023.03.003","url":null,"abstract":"<div><p>Currently, minimally invasive ablative techniques<span><span> for the treatment of </span>renal tumors<span> have become a more common and feasible treatment option. New imaging technologies have been implemented and successfully merged with each other to improve the guidance of tumor ablation. In the present review, an overview of the real-time fusion of multiple imaging modalities, robotic and electromagnetic navigation and the application of artificial intelligence software, in field of tumor renal ablation treatment, are analyzed.</span></span></p></div>","PeriodicalId":49541,"journal":{"name":"Seminars in Ultrasound Ct and Mri","volume":"44 3","pages":"Pages 162-169"},"PeriodicalIF":1.1,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9911749","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}
Antonio Galluzzo, Ginevra Danti, Eleonora Bicci, Matteo Mastrorosato, Elena Bertelli, Vittorio Miele
{"title":"The Role of Dual-Energy CT in the Study of Urinary Tract Tumors: Review of Recent Literature","authors":"Antonio Galluzzo, Ginevra Danti, Eleonora Bicci, Matteo Mastrorosato, Elena Bertelli, Vittorio Miele","doi":"10.1053/j.sult.2023.03.001","DOIUrl":"10.1053/j.sult.2023.03.001","url":null,"abstract":"<div><p><span>Urothelial cancers<span> are often detected incidentally because of an exponential growth in medical cross-sectional imaging. Nowadays there is the need for improved lesion characterization to distinguish clinically significant tumors from benign conditions. The gold standard for diagnosis of bladder cancer<span> is cystoscopy<span>, while for upper tract urothelial cancer computed tomographic urography and flexible </span></span></span></span>ureteroscopy<span><span> are more appropriate modalities. Computed tomography<span> (CT) is the cornerstone in the assessment of locoregional and distant disease, using a protocol with precontrastographic and postcontrastographic phases. In particular, renal pelvis, ureter<span> and bladder lesions<span><span> can be assessed during the urography phase in the acquisition protocol of the urothelial tumors. Multiphasic CT is associated with overexposure to </span>ionising radiation and repeated infusion of </span></span></span></span>iodinated contrast media<span>, which can be problematic especially in certain types of patients (allergic, nephropathic, pregnant women and in paediatric age). Dual-energy CT can overcome these difficulties with a number of methods, for example, by reconstructing virtual noncontrast images from a single-phase examination with contrast medium. In this review of the recent literature, we would like to highlight the role of Dual-energy CT in the diagnosis of urothelial cancer, its potential in this setting and possible advantages related to it.</span></span></p></div>","PeriodicalId":49541,"journal":{"name":"Seminars in Ultrasound Ct and Mri","volume":"44 3","pages":"Pages 136-144"},"PeriodicalIF":1.1,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9911753","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}
Andrea Agostini MD , Alessandra Borgheresi MD , Francesco Mariotti MP , Letizia Ottaviani MD , Marina Carotti MD , Marco Valenti MP , Andrea Giovagnoni MD
{"title":"New Frontiers in Oncological Imaging With Computed Tomography: From Morphology to Function","authors":"Andrea Agostini MD , Alessandra Borgheresi MD , Francesco Mariotti MP , Letizia Ottaviani MD , Marina Carotti MD , Marco Valenti MP , Andrea Giovagnoni MD","doi":"10.1053/j.sult.2023.03.009","DOIUrl":"10.1053/j.sult.2023.03.009","url":null,"abstract":"<div><p><span>The latest evolutions in Computed Tomography (CT) technology have several applications in </span>oncological imaging. The innovations in hardware and software allow for the optimization of the oncological protocol. Low-kV acquisitions are possible thanks to the new powerful tubes. Iterative reconstruction algorithms and artificial intelligence are helpful for the management of image noise during image reconstruction. Functional information is provided by spectral CT (dual-energy and photon counting CT) and perfusion CT.</p></div>","PeriodicalId":49541,"journal":{"name":"Seminars in Ultrasound Ct and Mri","volume":"44 3","pages":"Pages 214-227"},"PeriodicalIF":1.1,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9911751","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}
Diogo Goulart Corrêa MD, PhD , Luiz Celso Hygino da Cruz Jr. MD, PhD , Tomás de Andrade Lourenção Freddi MD
{"title":"The Vestibulocochlear Nerve: Anatomy and Pathology","authors":"Diogo Goulart Corrêa MD, PhD , Luiz Celso Hygino da Cruz Jr. MD, PhD , Tomás de Andrade Lourenção Freddi MD","doi":"10.1053/j.sult.2023.03.007","DOIUrl":"10.1053/j.sult.2023.03.007","url":null,"abstract":"<div><p><span>The vestibulocochlear nerve<span><span><span><span> is the eighth cranial nerve, entering the brainstem in the medullopontine sulcus after crossing the </span>internal auditory canal<span> and cerebellopontine angle<span> cistern. It is a purely sensitive nerve, originating from the Scarpa's and spiral ganglions<span>, responsible for balance and hearing. It has 6 nuclei located in the lower pons. Magnetic resonance imaging (MRI) is useful for evaluating the vestibulocochlear nerve, although </span></span></span></span>computed tomography<span> may have a complementary role in assessing bone lesions. A heavily T2-weighted sequence, such as fast imaging employing steady-state acquisition (FIESTA) or constructive interference steady state (CISS), is crucial in imaging exams to depict the canalicular and cisternal segments of the vestibulocochlear nerve, as well as the fluid signal intensity in the </span></span>membranous labyrinth<span>. The vestibulocochlear nerve can be affected by several diseases<span>, such as congenital malformations, trauma, inflammatory or infectious diseases, vascular disorders, and neoplasms. The purpose of this article is to review the vestibulocochlear nerve </span></span></span></span>anatomy, discuss the best MRI techniques to evaluate this nerve and demonstrate the imaging aspect of the main diseases that affect it.</p></div>","PeriodicalId":49541,"journal":{"name":"Seminars in Ultrasound Ct and Mri","volume":"44 2","pages":"Pages 81-94"},"PeriodicalIF":1.1,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9364128","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}
Rangel de Sousa Costa , Nina Ventura , Tomás de Andrade Lourenção Freddi , Luiz Celso Hygino da Cruz Jr , Diogo Goulart Corrêa
{"title":"The Hypoglossal Nerve","authors":"Rangel de Sousa Costa , Nina Ventura , Tomás de Andrade Lourenção Freddi , Luiz Celso Hygino da Cruz Jr , Diogo Goulart Corrêa","doi":"10.1053/j.sult.2022.11.002","DOIUrl":"10.1053/j.sult.2022.11.002","url":null,"abstract":"<div><p><span><span><span>The hypoglossal nerve<span><span> is the 12th cranial nerve, exiting the brainstem<span> in the preolivary sulcus, passing through the premedullary cistern, and exiting the skull through the hypoglossal canal. This is a purely motor nerve, responsible for the innervation of all the intrinsic </span></span>tongue<span> muscles (superior longitudinal muscle, inferior longitudinal muscle, transverse muscle, and vertical muscle), 3 extrinsic tongue muscles (styloglossus, hyoglossus, and genioglossus), and the geniohyoid muscle. Magnetic resonance imaging (MRI) is the best imaging exam to evaluate patients with clinical signs of </span></span></span>hypoglossal nerve palsy, and </span>computed tomography<span> may have a complementary role in the evaluation of bone lesions<span><span> affecting the hypoglossal canal. A heavily T2-weighted sequence, such as fast imaging employing steady-state acquisition (FIESTA) or constructive interference steady state (CISS) is important to evaluate this nerve on MRI. There are multiple causes of hypoglossal nerve palsy, being neoplasia the most common cause, but vascular lesions, inflammatory </span>diseases, infections, and trauma can also affect this nerve. The purpose of this article is to review the hypoglossal nerve </span></span></span>anatomy<span>, discuss the best imaging techniques to evaluate this nerve and demonstrate the imaging aspect of the main diseases that affect it.</span></p></div>","PeriodicalId":49541,"journal":{"name":"Seminars in Ultrasound Ct and Mri","volume":"44 2","pages":"Pages 104-114"},"PeriodicalIF":1.1,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9664922","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}
Ana Carolina Ottaiano , Gustavo Dalul Gomez , Tomás de Andrade Lourenção Freddi
{"title":"The Facial Nerve: Anatomy and Pathology","authors":"Ana Carolina Ottaiano , Gustavo Dalul Gomez , Tomás de Andrade Lourenção Freddi","doi":"10.1053/j.sult.2022.11.005","DOIUrl":"10.1053/j.sult.2022.11.005","url":null,"abstract":"<div><p>The facial nerve<span><span> is the seventh cranial nerve and consists of motor, parasympathetic and sensory branches, which arise from the brainstem through 3 different nuclei (1). After leaving the brainstem, the facial nerve divides into 5 intracranial segments (cisternal, canalicular, labyrinthine, tympanic, and mastoid) and continues as the intraparotid extracranial segment (2). A wide variety of pathologies, including congenital abnormalities, traumatic disorders, infectious and </span>inflammatory disease<span>, and neoplastic conditions, can affect the facial nerve along its pathway and lead to weakness or paralysis of the facial musculature (1,2). The knowledge of its complex anatomical pathway is essential to clinical and imaging evaluation to establish if the cause of the facial dysfunction is a central nervous system<span> process or a peripheral disease. Both computed tomography<span> (CT) and magnetic resonance imaging (MRI) are the modalities of choice for facial nerve assessment, each of them providing complementary information in this evaluation (1).</span></span></span></span></p></div>","PeriodicalId":49541,"journal":{"name":"Seminars in Ultrasound Ct and Mri","volume":"44 2","pages":"Pages 71-80"},"PeriodicalIF":1.1,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9664923","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}
Luciane Lucas Lucio , Tomás de Andrade Lourenção Freddi
{"title":"Glossopharyngeal, Vagus and Accessory Nerves: Anatomy and Pathology","authors":"Luciane Lucas Lucio , Tomás de Andrade Lourenção Freddi","doi":"10.1053/j.sult.2022.11.003","DOIUrl":"10.1053/j.sult.2022.11.003","url":null,"abstract":"<div><p><span>The glossopharyngeal, vagus, and accessory nerves are discussed in this article, given their intimate anatomical and functional associations. Abnormalities of these lower cranial nerves may be intrinsic or extrinsic due to various disease processes. This article aims to review these nerves' </span>anatomy<span> and demonstrates the imaging aspect of the diseases which most commonly affect them.</span></p></div>","PeriodicalId":49541,"journal":{"name":"Seminars in Ultrasound Ct and Mri","volume":"44 2","pages":"Pages 95-103"},"PeriodicalIF":1.1,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9664924","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}
{"title":"High-Risk Lesion Management","authors":"Joao V. Horvat MD","doi":"10.1053/j.sult.2022.10.005","DOIUrl":"10.1053/j.sult.2022.10.005","url":null,"abstract":"<div><p>High-risk lesions or lesions of uncertain malignant potential are frequent findings on image-guided needle biopsy<span> of the breast and comprise a number of distinct entities. These lesions are known for having risk of underlying malignancy and are usually associated with an increased lifetime risk for breast cancer. Surgical excision was traditionally recommended for all high-risk lesions but recent studies have demonstrated that vacuum-assisted excision or surveillance may be adequate for some lesions. While management of high-risk lesion varies among institutions, this chapter describes the management recommendations based on recent literature of the most frequent types of lesions.</span></p></div>","PeriodicalId":49541,"journal":{"name":"Seminars in Ultrasound Ct and Mri","volume":"44 1","pages":"Pages 46-55"},"PeriodicalIF":1.1,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10727477","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}