Charles Mesguich, Cyrille Hulin, Valerie Latrabe, Axelle Lascaux, Laurence Bordenave, Elif Hindié, Gerald Marit
Magnetic resonance imaging (MRI) and 18 F-fluorodeoxyglucose positron emission tomography-computed tomography (18 FDG 18F-FDG PET-CT) are standard procedures for staging multiple myeloma (MM). Diffusion-weighted sequences applied to whole-body MRI (WB-DWI) improve its sensitivity. We compared the number of MM bone focal lesions (FLs) detected by 18 F-FDG PET-CT and WB-DWI and evaluated the diagnostic performance of 18 F-FDG PET-CT for diffuse infiltration. Thirty newly diagnosed MM patients prospectively underwent 18F-FDG PET-CT and WB-DWI...
September 19, 2020: Annals of Hematology
Islam H Zaki, Erin Shropshire, Shuaiqi Zhang, Dong Xiao, Benjamin Wildman-Tobriner, Daniele Marin, Rajan T Gupta, Alaattin Erkanli, Redon C Nelson, Mustafa R Bashir
OBJECTIVE: To determine the rate of development of clinically significant liver nodules (LR-4, LR-5, LR-M) after a negative MRI in an HCC screening population. METHODS: This retrospective study included patients at risk of developing HCC requiring imaging surveillance who had undergone multiphase Gadobenate dimeglumine-enhanced MRI that was negative and had follow up LI-RADS compliant multiphase CTs or MRIs for at least 12 months or positive follow-up within 12 months...
September 19, 2020: Abdominal Radiology
Jayanthan Bhaskar Subramanian, Suprajha K S, Selvakumar Selvarangam
INTRODUCTION: Bronchogenic cysts are developmental anomalies which occur as an abnormal budding of the primitive foregut or tracheobronchial tree. Bronchogenic cysts arise most often in the mediastinum. They can occur in many atypical locations. A retroperitoneal location is exceptionally unusual. PRESENTATION OF CASE: We present the case of a 46-year-old male with complaints of dyspeptic symptoms, who, on routine evaluation was found to have a mass in the Left iliac fossa...
September 12, 2020: International Journal of Surgery Case Reports
Eduardo Penailillo, Sebastian Bravo-Grau, Nicole Plaza, Juan Pablo Cruz
Cerebral venous thrombosis is a less common but relevant cause of stroke in adults. The clinical manifestations are nonspecific leading frequently diagnostic delays, so imaging findings are is of vital importance. Conventional imaging modalities, namely computed tomography and magnetic resonance imaging (MRI), allow identification of the thrombus and parenchymal involvement due to venous congestion to a variable degree, but this entity may appears as a nonexpected finding in a nonvenographic study. computed tomography and MRI venographies allow noninvasive confirmation of the diagnosis and adequate characterization of the extent of the thrombus and acute complications, both of them being robust diagnostic techniques...
August 27, 2020: Current Problems in Diagnostic Radiology
S Bae, S S Ahn, B M Kim, D J Kim, Y D Kim, H S Nam, J H Heo, S-K Lee
AIM: To evaluate the clinical significance of hyperattenuating lesions on CT after mechanical thrombectomy for acute ischaemic stroke, and to identify imaging factors that predict symptomatic haemorrhage and unfavourable outcomes. MATERIALS AND METHODS: Seventy-eight patients with acute ischaemic stroke in the anterior circulation who underwent mechanical thrombectomy were evaluated. All patients underwent post-interventional unenhanced computed tomography (CT) within 24 h and follow-up CT or magnetic resonance imaging (MRI) within 7 days...
September 17, 2020: Clinical Radiology
Jiaoling Li, Wei Zhong, Xiuping Geng, Xiaofang Liu, Xiangxiang Zhang, Yurun Wang, Haibo Li
BACKGROUND: To explore the imaging features, key diagnostic points, classification, treatment, and prognosis of cervical lymphatic malformation. METHODS: Overall, 320 patients diagnosed with cervical lymphatic malformation were retrospectively analysed in our hospital between 1 January 2014 and 31 December 2017. Imaging modalities included colour Doppler ultrasound, magnetic resonance imaging, and contrast-enhanced computed tomography. Cervical lymphatic malformations were classified by cyst diameter...
September 19, 2020: BMC Pediatrics
Brian A Tong, Yoshua Esquenazi, Jessica Johnson, Ping Zhu, Nitin Tandon
BACKGROUND: Intracranial recordings are integral to evaluating patients with pharmaco-resistant epilepsy whom non-invasive testing fails to localize seizure focus. Although stereo-electroencephalography (SEEG) is now the preferred method of intracranial recordings in most centers, subdural electrode (SDE) implantation is necessary in selected cases. OBJECTIVE: To identify imaging correlates that predict SDE complications - extra-axial fluid collections (EFCs), and determine if modifications that diminish stiffness of electrode sheets reduce complications...
September 16, 2020: World Neurosurgery
Ludovico La Grutta, Patrizia Toia, Emanuele Grassedonio, Salvatore Pasta, Domenico Albano, Francesco Agnello, Erica Maffei, Filippo Cademartiri, Tommaso Vincenzo Bartolotta, Massimo Galia, Massimo Midiri
Aortic valve stenosis (AS) is a common valvular heart disease. Recently, transcatheter aortic valve implantation (TAVI) has changed the treatment of severe AS in elderly patients with contraindications to traditional surgical replacement. Echocardiography is conventionally used as the first imaging modality to assess the presence and severity of AS and to provide anatomical and functional information. Nowadays, imaging techniques play a crucial role in the planning of TAVI to define suitable candidates. Computed tomography (CT) is essential to display the anatomy of the aortic valve complex (including aortic annulus, Valsalva sinuses, coronary arteries ostia, sinotubular junction), thoracoabdominal aorta, and vascular access...
September 18, 2020: La Radiologia Medica
Wolfgang A Schmidt, Berit D Nielsen
Imaging has recently been acknowledged as at least equivalent to histology for confirming large-vessel vasculitis in the recommendations of scientific societies. Many studies have been recently published on the use of ultrasound, magnetic resonance imaging (MRI), computed tomography (CT) and fluorodeoxyglucose (FDG) positron emission tomography (PET) in giant cell arteritis and Takayasu arteritis. Ultrasound, MRI and CT show concentric, arterial wall thickening in vasculitis. PET demonstrates enhanced FDG uptake of inflamed artery walls due to increased glucose metabolism...
September 15, 2020: Best Practice & Research. Clinical Rheumatology
Jesse S Chen, Jingwen Chen, Somnath Bhattacharjee, Zhengyi Cao, Han Wang, Scott D Swanson, Hong Zong, James R Baker, Su He Wang
BACKGROUND: Targeted contrast nanoparticles for breast tumor imaging facilitates early detection and improves treatment efficacy of breast cancer. This manuscript reports the development of an epidermal growth factor receptor-2 (HER-2) specific, bi-modal, dendrimer conjugate to enhance computed tomography (CT) and magnetic resonance imaging (MRI) of HER-2-positive breast cancer. This material employs generation 5 poly(amidoamine) dendrimers, encapsulated gold nanoparticles, chelated gadolinium, and anti-human HER-2 antibody to produce the nanoparticle contrast agent...
September 18, 2020: Journal of Nanobiotechnology
Samuel J Galgano, Kristin K Porter, Constantine Burgan, Soroush Rais-Bahrami
Bladder cancer (BC) is the most common cancer of the urinary tract in the United States. Imaging plays a significant role in the management of patients with BC, including the locoregional staging and evaluation for distant metastatic disease, which cannot be assessed at the time of cystoscopy and biopsy/resection. We aim to review the current role of cross-sectional and molecular imaging modalities for the staging and restaging of BC and the potential advantages and limitations of each imaging modality. CT is the most widely available and frequently utilized imaging modality for BC and demonstrates good performance for the detection of nodal and visceral metastatic disease...
September 16, 2020: Diagnostics
Valentina Brancato, Marco Aiello, Roberta Della Pepa, Luca Basso, Nunzia Garbino, Emanuele Nicolai, Marco Picardi, Marco Salvatore, Carlo Cavaliere
The lack of validation and standardization represents the main drawback for a clear role of whole-body diffusion weighted imaging (WB-DWI) for prediction and assessment of treatment response in Hodgkin's lymphoma (HL). We explored the reliability of an automatic approach based on the WB-DWI technique for prediction and assessment of response to treatment in patients with HL. The study included 20 HL patients, who had whole-body positron emission tomography (PET)/ magnetic resonance Imaging (MRI) performed before, during and after chemotherapy...
September 16, 2020: Diagnostics
Eduardo Oliveira Pacheco, Ulysses S Torres, Aldo Maurici Araújo Alves, Daniel Bekhor, Giuseppe D'Ippolito
PURPOSE: In a condition so prevalent as renal cysts, classifications should display satisfactory reproducibility not only among subspecialized readers. We aimed to compare the interobserver agreement of the Bosniak classification version 2019 (BC19) and current Bosniak classification (CBC) for non-subspecialized readers on CT and MRI and to verify whether BC19 leads to a downgrade of renal cystic masses when compared to CBC. METHODS: We evaluated 50 renal cystic masses in 47 patients on MR and CT (25 per method)...
September 15, 2020: European Journal of Radiology
Seonjeong Jeong, Tae-Won Kwon, Youngjin Han, Yong-Pil Cho
OBJECTIVES: Cystic adventitial disease is a rare, non-atherosclerotic disease that affects various arteries and veins, involving the formation of a mucinous cyst within the adventitia. The etiology of cystic adventitial disease is currently unclear, with several hypotheses having been suggested. The purpose of this retrospective observational study was to evaluate the etiology of popliteal cystic adventitial disease based on imaging and surgical findings and to evaluate the efficacy of surgical treatment...
September 15, 2020: Annals of Vascular Surgery
Miriam Y Salib, James H B Russell, Victoria R Stewart, Siham A Sudderuddin, Tara D Barwick, Andrea G Rockall, Nishat Bharwani
Cervical cancer is the fourth most common cancer in women of all ages worldwide. The disease is staged using the International Federation of Gynecology and Obstetrics (FIGO) system, which was updated in 2018. The authors explain the key changes from the 2009 version and the rationale behind them. The changes have been made to reflect common clinical practice, differentiate prognostic outcomes, and guide treatment stratification. Treatment options are dependent on the stage of disease and include fertility-sparing and non-fertility-sparing surgical options as well as chemoradiotherapy for locally advanced disease...
September 18, 2020: Radiographics: a Review Publication of the Radiological Society of North America, Inc
Marly van Assen, Giuseppe Muscogiuri, Damiano Caruso, Scott J Lee, Andrea Laghi, Carlo N De Cecco
Artificial intelligence (AI) is entering the clinical arena, and in the early stage, its implementation will be focused on the automatization tasks, improving diagnostic accuracy and reducing reading time. Many studies investigate the potential role of AI to support cardiac radiologist in their day-to-day tasks, assisting in segmentation, quantification, and reporting tasks. In addition, AI algorithms can be also utilized to optimize image reconstruction and image quality. Since these algorithms will play an important role in the field of cardiac radiology, it is increasingly important for radiologists to be familiar with the potential applications of AI...
September 18, 2020: La Radiologia Medica
David M Biko, Karen I Ramirez-Suarez, Christian A Barrera, Anirban Banerjee, Daisuke Matsubara, Summer L Kaplan, Keri A Cohn, Jordan B Rapp
BACKGROUND: Imaging of novel coronavirus disease 2019 (COVID-19) has been described in adults, but children have milder forms of disease. Pediatric imaging descriptions are of asymptomatic children, raising the question of whether imaging is needed in this patient group. OBJECTIVE: To describe the utilization and imaging findings in children with COVID-19 along with the comorbidities, treatment and short-term outcomes. MATERIALS AND METHODS: We retrospectively reviewed pediatric patients who had a confirmed positive test for COVID-19 during a 2-month period...
September 18, 2020: Pediatric Radiology
Antonella Miriam Di Lullo, Aldo Paolucci, Sergio Motta, Elena Cantone, Emiliano Barbieri, Domenico Cicala, Roberta Grassi, Federico Bruno, Alessandra Splendiani, Fabio Tortora, Michele Cavaliere, Luca Brunese
Intralabyrinthine schwannoma (ILS) is a rare benign tumor affecting cochlear and vestibular nerves, whose symptoms are generally unspecific and frequently responsible for a late diagnosis. Radiological examinations, with particular reference to magnetic resonance imaging (MRI), represent the only diagnostic technique to identify ILS. On computed tomography ILS can only be indirectly suspected by the presence of surrounding bone remodeling, whereas MRI provides direct visualization of the neoplasm as a filling defect within the labyrinth with vivid contrast enhancement...
July 13, 2020: Acta Bio-medica: Atenei Parmensis
Pierpaolo Palumbo, Federico Bruno, Francesco Arrigoni, Marcello Zappia, Anna Maria Ierardi, Giuseppe Guglielmi, Luigi Zugaro, Marina Carotti, Ernesto Di Cesare, Alessandra Splendiani, Luca Brunese, Carlo Masciocchi, Antonio Barile
Spondylodiscitis (SD) is one of the main causes of back pain. Although the low mortality, high morbidity is related to spondilodiscitys, leading spine instability, chronic pain or neurological deficit. Diagnostic imaging plays a primary role in diagnosing spondylodiscitis. However different accuracy is highlighted by different diagnostic tool, depending also on timing of disease which represents a cardinal element for the phenotypic manifestation of the disease, beyond spatial resolution and tissue characterization proper of specific modality imaging...
July 13, 2020: Acta Bio-medica: Atenei Parmensis
Alfonso Reginelli, Fabrizio Urraro, Angelo Sangiovanni, Gaetano Maria Russo, Carolina Russo, Roberta Grassi, Andrea Agostini, Maria Paola Belfiore, Michaela Cellina, Chiara Floridi, Andrea Giovagnoni, Antonello Sica, Salvatore Cappabianca
Extranodal lymphomas represent an extranodal location of both non-Hodgkin and Hodgkin lymphomas. This study aims to evaluate the role of CT and MRI in the assessment of relationships of extranodal lymphomas with surrounding tissues and in the characterization of the lesion. We selected and reviewed ten recent studies among the most recent ones present in literature exclusively about CT and MRI imaging of extranodal lymphomas. Contrast-enhanced computed tomography (CT) is usually the first-line imaging modality in the evaluation of extranodal lymphomas, according to Lugano classification...
July 13, 2020: Acta Bio-medica: Atenei Parmensis
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