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Radiographics: a Review Publication of the Radiological Society of North America, Inc

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https://www.readbyqxmd.com/read/29787362/j-pouch-imaging-findings-surgical-variations-natural-history-and-common-complications
#1
Joshua D Reber, John M Barlow, Amy L Lightner, Shannon P Sheedy, David H Bruining, Christine O Menias, Joel G Fletcher
Ileal pouch-anal anastomosis, or J pouch, surgery has become the procedure of choice for treatment of medically refractory ulcerative colitis and familial adenomatous polyposis. Overall, this operation is associated with a low rate of postoperative morbidity and good long-term function. However, when complications develop, there is a heavy reliance on imaging to facilitate an accurate diagnosis. Reported postoperative complication rates range from 5% to 35%. Complications generally can be categorized as structural, inflammatory, or neoplastic conditions...
May 25, 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29995624/nonepithelial-pancreatic-neoplasms-sarcoma-versus-lymphoma
#2
Aletta Ann Frazier
No abstract text is available yet for this article.
July 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29995623/complications-of-90-y-transarterial-radioembolization-of-hepatic-tumors-primer-for-interventional-radiology-residents-and-fellows-radiographics-fundamentals-online-presentation
#3
Nanda Venkatanarasimha, Apoorva Gogna, Ravi Muli Jogi, Karthikeyan Damodharan, Shaun Xavier Chan, David Chee Eng Ng, Kelvin Siu Hoong Loke, Farah G Irani, Richard Haou Gong Lo, Sivanathan Chandramohan
No abstract text is available yet for this article.
July 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29995622/imaging-genomics-of-embryonal-tumors-of-the-central-nervous-system
#4
COMMENT
Wanyin Lim, Kshitij Mankad
No abstract text is available yet for this article.
July 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29995621/case-based-review-of-endovascular-renal-interventions-primer-for-radiology-residents-and-fellows-radiographics-fundamentals-online-presentation
#5
Jay Patel, Sean Calhoun, Thaddeus Yablonsky, Michael Miller, Juan C Camacho, Courtney C Moreno, Frank H Miller, Pardeep K Mittal
No abstract text is available yet for this article.
July 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29995620/incomplete-cord-syndromes-clinical-and-imaging-review
#6
Vamsi K Kunam, Vinodkumar Velayudhan, Zeshan A Chaudhry, Matthew Bobinski, Wendy R K Smoker, Deborah L Reede
The ability to localize the three spinal tracts (corticospinal tract, spinothalamic tract, and dorsal [posterior] columns) involved in incomplete spinal cord syndromes at cross-sectional imaging and knowledge of the classic clinical manifestations of the various syndromes enable optimized imaging evaluation and provide clinicians with information that aids in diagnosis and treatment. The requisite knowledge for localizing these tracts is outlined. The authors review the spinal cord anatomy, blood supply, and course of these tracts and describe the various associated syndromes: specifically, dorsal cord, ventral cord, central cord, Brown-Séquard, conus medullaris, and cauda equina syndromes...
July 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29995619/sarcoidosis-from-head-to-toe-what-the-radiologist-needs-to-know
#7
Dhakshinamoorthy Ganeshan, Christine O Menias, Meghan G Lubner, Perry J Pickhardt, Kumaresan Sandrasegaran, Sanjeev Bhalla
Sarcoidosis is a multisystem granulomatous disorder characterized by development of noncaseating granulomas in various organs. Although the etiology of this condition is unclear, environmental and genetic factors may be substantial in its pathogenesis. Clinical features are often nonspecific, and imaging is essential to diagnosis. Abnormalities may be seen on chest radiographs in more than 90% of patients with thoracic sarcoidosis. Symmetric hilar and mediastinal adenopathy and pulmonary micronodules in a perilymphatic distribution are characteristic features of sarcoidosis...
July 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29995618/us-of-pediatric-superficial-masses-of-the-head-and-neck
#8
Anmol Gupta Bansal, Rebecca Oudsema, Joy A Masseaux, Henrietta Kotlus Rosenberg
Superficial palpable masses of the head and neck are common in the pediatric population, with the vast majority of the lesions ultimately proven to be benign. Duplex ultrasonography (US) has emerged as the first-line imaging modality for the evaluation of superficial pediatric masses. Without utilizing radiation, iodinated contrast material, or sedation and/or anesthesia, US provides a means for quick and cost-effective acquisition of information, including the location, size, shape, internal content, and vascularity of the mass...
July 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29995617/a-spectrum-of-entities-that-may-mimic-abdominopelvic-abscesses-requiring-image-guided-drainage
#9
Lauren N Moomjian, Ryan D Clayton, Laura R Carucci
A variety of entities may mimic drainable abscesses. This can lead to misdiagnosis of these entities, unnecessary percutaneous placement of a pigtail drainage catheter, other complications, and delay in appropriate treatment of the patient. Types of entities that may mimic drainable abscesses include neoplasms (lymphoma, gallbladder cancer, gastrointestinal stromal tumor, ovarian cancer, mesenteric fibromatosis, ruptured mature cystic teratoma, recurrent malignancy in a surgical bed), ischemia/infarction (liquefactive infarction of the spleen, infarcted splenule), diverticula (calyceal, Meckel, and giant colonic diverticula), and congenital variants (obstructed duplicated collecting system)...
July 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29995616/cardiac-fibroma-in-an-adult-airp-best-cases-in-radiologic-pathologic-correlation
#10
Gilat L Grunau, Jonathon A Leipsic, Stephanie L Sellers, Michael A Seidman
Editor's Note.-RadioGraphics continues to publish radiologic-pathologic case material selected from the American Institute for Radiologic Pathology (AIRP) "best case" presentations. The AIRP conducts a 4-week Radiologic Pathology Correlation Course, which is offered five times per year. On the penultimate day of the course, the best case presentation is held at the American Film Institute Silver Theater and Cultural Center in Silver Spring, Md. The AIRP faculty identifies the best cases from each organ system, brought by the resident attendees...
July 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29995615/brain-imaging-findings-and-neurologic-complications-after-allogenic-hematopoietic-stem-cell-transplantation-in-children
#11
Mara Bonardi, Elena Turpini, Giuseppina Sanfilippo, Tommaso Mina, Alessandra Tolva, Federico Zappoli Thyrion
Hematopoietic stem cell transplantation (HSCT) is the only therapy for a subset of patients with malignant and nonmalignant diseases. Central nervous system (CNS) complications continue to be an important cause of morbidity and significantly contribute to mortality after HSCT. These complications include infections, cerebrovascular lesions, therapy-induced diseases, metabolic disturbances, and post-HSCT carcinogenesis. Following HSCT, three phases can be identified on the basis of the patient's immune status: the pre-engraftment period (<30 days after HSCT), the early postengraftment period (30-100 days after HSCT), and the late postengraftment period (>100 days after HSCT)...
July 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29995614/introduction-to-the-technical-aspects-of-computed-diffusion-weighted-imaging-for-radiologists
#12
Toru Higaki, Yuko Nakamura, Fuminari Tatsugami, Yoko Kaichi, Motonori Akagi, Yuij Akiyama, Yasutaka Baba, Makoto Iida, Kazuo Awai
Diffusion-weighted (DW) imaging is a magnetic resonance (MR) imaging method. It is an indispensable sequence for the diagnosis of acute cerebral infarction and is recognized as a standard tool in oncologic imaging. Computed DW imaging refers to the synthesizing of arbitrary b-value DW images from a set of measured b-value images by voxelwise fitting. Computed DW imaging is advantageous because it generates DW images with a higher diffusion effect than that achievable by using the MR imaging units in use today...
July 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29995613/unintended-consequences-of-systemic-and-ablative-oncologic-therapy-in-the-abdomen-and-pelvis
#13
Julie C Birch, Gaurav Khatri, Lori M Watumull, Yull E Arriaga, John R Leyendecker
Human cancers are genetically complex and diverse. Although advances in oncologic therapy aim to define and target unique steps in carcinogenesis, oncologists often rely on less discriminate anticancer therapies that have consequences for normal tissues. Even many of the so-called targeted therapies currently employed can adversely affect normal cells, leading to complications that necessitate dose reductions or cessation of specific therapies. This article explores the unintended consequences of currently employed systemic and ablative anticancer therapies that might manifest at imaging examinations of the abdomen and pelvis, including cytotoxic, molecular targeted, and immunologic agents; ablation; and hematopoietic stem cell transplant...
July 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29906203/radiographic-review-of-current-therapeutic-and-monitoring-devices-in-the-chest
#14
Christopher J G Sigakis, Susan K Mathai, Thomas D Suby-Long, Nicole L Restauri, Daniel Ocazionez, Tami J Bang, Carlos S Restrepo, Peter B Sachs, Daniel Vargas
Chest radiographs are obtained as a standard part of clinical care. Rapid advancements in medical technology have resulted in a myriad of new medical devices, and familiarity with their imaging appearance is a critical yet increasingly difficult endeavor. Many modern thoracic medical devices are new renditions of old designs and are often smaller than older versions. In addition, multiple device designs serving the same purpose may have varying morphologies and positions within the chest. The radiologist must be able to recognize and correctly identify the proper positioning of state-of-the-art medical devices and identify any potential complications that could impact patient care and management...
July 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29906202/imaging-of-acute-conditions-of-the-perineum
#15
Jihee Choe, Jeremy R Wortman, Aaron D Sodickson, Bharti Khurana, Jennifer W Uyeda
A wide range of acute conditions can affect the perineum, from self-limited disease to conditions that are potentially life threatening or contribute to substantial patient morbidity if not promptly diagnosed and appropriately treated. Imaging is essential in the clinical management of perineal disease because it allows accurate anatomic localization of the origin and extent of the disease to be determined. Familiarity with complex perineal anatomy, appropriate use of imaging modalities, and the spectrum of imaging findings seen in acute perineal conditions is crucial for radiologists to make a rapid and accurate diagnosis...
July 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29883268/invited-commentary-on-ct-for-evaluation-of-acute-gastrointestinal-bleeding
#16
COMMENT
Christopher Scott Morris
No abstract text is available yet for this article.
July 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29883267/ct-for-evaluation-of-acute-gastrointestinal-bleeding
#17
Michael L Wells, Stephanie L Hansel, David H Bruining, Joel G Fletcher, Adam T Froemming, John M Barlow, Jeff L Fidler
Acute gastrointestinal (GI) bleeding is common and necessitates rapid diagnosis and treatment. Bleeding can occur anywhere throughout the GI tract and may be caused by many types of disease. The variety of enteric diseases that cause bleeding and the tendency for bleeding to be intermittent may make it difficult to render a diagnosis. The workup of GI bleeding is frequently prolonged and expensive, with examinations commonly needing to be repeated. The use of computed tomography (CT) for evaluation of acute GI bleeding is gaining popularity because it can be used to rapidly diagnose active bleeding and nonbleeding bowel disease...
July 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29883266/ct-and-mr-imaging-of-cardiothoracic-vasculitis
#18
Jordi Broncano, Daniel Vargas, Sanjeev Bhalla, Kristopher W Cummings, Constantine A Raptis, Antonio Luna
The term vasculitis includes a variable group of entities in which the common characteristic is inflammation of the walls of blood vessels occurring at some time during the course of the disease. The vasculitides can be divided into primary and secondary vasculitides, depending on the etiology and according to the size of the vessel affected. Both primary vasculitis and secondary vasculitis are associated with cardiac morbidity that is often subclinical. Cardiac involvement is associated with prognostic implications and higher rates of related mortality...
July 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29856684/hormonal-effects-on-breast-density-fibroglandular-tissue-and-background-parenchymal-enhancement
#19
Samantha L Heller, Leng Leng Young Lin, Amy N Melsaether, Linda Moy, Yiming Gao
Breast density, fibroglandular tissue, and background parenchymal enhancement (BPE) are recognized independent biomarkers for breast cancer risk. For this reason, reproducibility and consistency in objective assessment of these parameters at mammography (breast density) and at magnetic resonance imaging (fibroglandular tissue and BPE) are clinically relevant. However, breast density, fibroglandular tissue, and BPE are manifestations of dynamic physiologic processes and may change in response to both endogenous and exogenous hormonal stimulation...
July 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29856683/digital-medical-illustration-for-the-radiologist
#20
Jennifer L McCarty, Piotr Gołofit, Stefan Tigges, Matthew Skalski
The adage "a picture is worth a thousand words" holds true in medicine, especially so in radiology. Although the images radiologists interpret are highly detailed, there often is no substitute for a concise diagrammatic illustration. Medical illustrations can help to clarify anatomy, pathology, and procedures-relaying complex information in a simple and easily understandable format. Medical illustrations have become ubiquitous in medical education and sought after for publications. Unfortunately, existing best-fit illustrations are not always available to complement discussion points...
July 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
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