Intensive research devoted to exploiting the unique and powerful opportunities of dual-energy CT has led to protocol modifications for radiation dose reduction, improved diagnostic performance for detection and characterization of diseases and image quality optimization.
In a State-of-the-Art article in the May issue of Radiology (RSNA.org/Radiology), Daniele Marin, M.D., Duke University Medical Center, Durham, N.C., and colleagues discuss the basic principles, instrumentation and design, examples of current clinical applications in the abdomen and pelvis and future opportunities of dual-energy CT (DECT).
DECT is gradually changing the way CT is practiced today, according to the authors. By interrogating the unique characteristics of different materials at different X-ray energies, DECT provides quantitative information about tissue composition, overcoming the limitations of attenuation-based conventional single energy CT imaging.
“In the future, streamlined strategies to improve workflow efficiency (e.g., development vendor-independent dual energy postprocessing workstation seamlessly integrated into PACS), decreased costs, and reimbursement by third-party payers, will expedite widespread adoption of this new technology into clinical practice,” the authors write.
Bile duct strictures in adults are secondary to a wide spectrum of benign and malignant pathologic conditions. Awareness of the various causes of bile duct strictures in adults and familiarity with their appearances at MR imaging–MR cholangiopancreatography are important for accurate diagnosis and optimal patient management.
In an article in the May-June issue of RadioGraphics (RSNA.org/RadioGraphics), Venkata S. Katabathina, M.D., of the University of Texas Health Science Center at San Antonio, and colleagues review the spectrum of bile duct strictures in adult patients and discuss the MR imaging and MR cholangiopancreatographic findings, with emphasis on differentiation between benign and malignant strictures.
Contrast-enhanced MR imaging with MR cholangiopancreatography can be helpful in identifying bile duct strictures in adult patients and in differentiating between benign and malignant strictures, according to the authors.
“Although biopsy is necessary for distinguishing malignant from benign strictures, certain MR imaging findings of the narrowed segment may favor a malignant cause,” the authors write.
Read the Invited Commentary by Andrew J. Taylor, M.D., of the University of Minnesota, Minneapolis.
In recognition of Stroke Awareness month, Radiology Select, Volume 2: Stroke, is available at 50 percent off the standard price for the online education edition during May to members and non-members.
Radiology Select (RSNA.org/RadiologySelect) is a continuing series of selected Radiology articles that highlight developments in imaging science, techniques and clinical practice. Each volume focuses on a particular topic important in the field and is supplemented by commentaries, author interviews, podcasts and educational opportunities. Radiology Select is a great way to stay at the forefront of radiology while maintaining the necessary certifications. Volume 2: Stroke features 30 articles that cover:
Listen to Radiology Editor Herbert Y. Kressel, M.D., deputy editors and authors discuss the following articles in the April issue of Radiology at pubs.rsna.org/page/radiology/podcasts:
The Nominating Committee for the Margulis Award for Scientific Excellence is accepting nominations from readers for Radiology articles published between July 2013 and June 2014. The main selection criteria are scientific quality and originality. Please send your nomination, including the article citation and a brief note highlighting the reasons for the nomination, to Pamela Lepkowski, assistant to the editor, email@example.com. The deadline for nominations is June 10, 2014.
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