21/xsl/MobileMenu.xsltmobileNave880e1541/WorkArea//http://www.rsna.org/TwoColumnWireframe.aspx?pageid=2794&id=9289&ekfxmen_noscript=1&ekfxmensel=falsefalsetruetruetruefalsefalse10-18.0.0.0730truefalse
  •  
     
  • News App
  • To:
    From:
    Subject:
    Comment:
    Link:
      
  • Journal Highlights

    June 01, 2013

    The following are highlights from current issues of RSNA’s two peer-reviewed journals.

    Radiology
    Intracranial Vasa Vasorum: Insights and Implications for Imaging

    Unlike extracranial vasa vasorum, intracranial vasa vasorum are rare and develop with age, predominantly on the proximal portions of the intracranial arteries. Advanced contrast material-enhanced imaging techniques can help detect and even grade intracranial vasa vasorum, which may provide new insights into our ability to diagnose and assess the risk of intracranial vascular lesions such as atherosclerosis, aneurysms, dissections and vasculitis.

    In a Review and Commentary in the June issue of Radiology (RSNA.org/Radiology), Anthony Portanova, B.S., of the University of Rochester, N.Y., and colleagues review the published literature on intracranial vasa vasorum and interpret the findings in a radiologic context. The authors offer radiologists a concise framework for analyzing diseases of the intracranial arteries on the basis of the presence or absence of vasa vasorum.

    The unique structure and environment of intracranial arteries may explain their relative lack of vasa vasorum, according to the authors. This distinctive feature of intracranial arteries may serve as an important diagnostic characteristic on imaging studies, since vasa vasorum signal the presence of a variety of vascular pathologic processes and can be detected by using contrast-enhanced imaging techniques.

    “Contrast-enhanced imaging modalities, including MR imaging, CT, and ultrasound, can depict vasa vasorum by showing wall enhancement, which enables the identification and characterization of intracranial vasculopathies such as atherosclerosis, aneurysms, dissections, and vasculitis that would not be achievable with conventional angiography,” the authors write.

    This article meets the criteria for AMA PRA Category 1 Credit™. CME is available online. 

    Radiographics
    Diffusion-weighted MR Imaging of the Gastrointestinal Tract: Technique, Indications, and Imaging Findings

    Crohn disease Axial color-coded diffusion-weighted MR image
    Crohn disease in a 35-year-old woman. Axial color-coded diffusion-weighted MR image shows an area of high signal intensity (arrows) in inflamed bowel segments and a linear area of transmural hyperintensity at the site of ulcers (arrowhead). (RadioGraphics 2013;33;655–680) ©RSNA, 2013. All rights reserved. Printed with permission.

    Diffusion-weighted MR imaging is emerging as an important tool in the evaluation of gastrointestinal tract tumors and inflammatory disorders and is used to depict complications and monitor tumors and inflammatory bowel disorders to assess response to treatment.

    In an article in the May-June issue of RadioGraphics (RSNA.org/RadioGraphics). Rakesh Sinha, M.B.B.S., M.D., F.R.C.R., F.I.C.R., of Warwick Hospital, South Warwickshire NHS Foundation Trust, England, and colleagues review the technique, indications and imaging findings of diffusion-weighted imaging and its role in depicting disease processes that affect the gastrointestinal tract. The authors also discuss artifacts and an approach to image optimization with examples of pitfalls of interpreting diffusion-weighted images of the bowel.

    “Complications, such as a malignant change, abscess, and fistula, may also be depicted, and it is particularly useful in assessing gastrointestinal tract conditions in patients with contraindications to the use of intravenous contrast material,” the authors write. “Quantitative measurements of signal intensity at diffusion-weighted imaging may help differentiate actively inflamed bowel from normal bowel, and ADC values provide useful information about disease activity and response to treatment.”

    An Invited Commentary on Dr. Sinha’s article by Aliya Qayyum, M.B.B.S., M.R.C.P., F.R.C.R., also appears in the issue.

    Correction

    The Journal Highlights section in the April issue of RSNA News incorrectly identified the journal in the citation for the study, “Breast Reconstruction: Review of Surgical Methods and Spectrum of Imaging Findings.” The journal is RadioGraphics.

    The Radiology in Public Focus section in that issue incorrectly identified the page numbers in the citation for the study, “Body CT Scanning in Young Adults: Examination Indications, Patient Outcomes and Risk of Radiation-induced Cancer.” The page numbers are 460-469.

    Low-power photomicrographs of severely atherosclerotic coronary artery
    Low-power photomicrographs of severely atherosclerotic coronary artery with vasa vasorum in the adventitia. Features of this late fibroatheroma with necrotic core (NC) are highlighted. (Movat pentachrome stain.) (Radiology 2013;267;3:667–679) ©RSNA, 2013. All rights reserved. Printed with permission.
  • comments powered by Disqus

We appreciate your comments and suggestions in our effort to improve your RSNA web experience.

Name (required)

 

Email Address (required)

 

Comments (required)

 

 

 

 

Discounted Dues: Eligible North American Countries 
Belize
Costa Rica
Dominican Republic
El Salvador
Grenada
Guatamala
Haiti
Honduras
Jamaica
Netherlands Antilles
Nicaragua
Panama
St.Lucia
St. Vincent & Grenadines
Country    Country    Country 
Afghanistan   Grenada   Pakistan
Albania   Guatemala   Papua New Guinea
Algeria   Guinea   Paraguay
Angola   Guinea-Bissau   Peru
Armenia   Guyana   Phillippines
Azerbaijan   Haiti   Rwanda
Bangladesh   Honduras   Samoa
Belarus   India   Sao Tome & Principe
Belize   Indonesia   Senegal
Benin   Iran   Serbia
Bhutan   Iraq   Sierra Leone
Bolivia   Jordan   Solomon Islands
Bosnia & Herzegovina   Jamaica   Somalia
Botswana   Kenya   South Africa
Bulgaria   Kiribati   South Sudan
Burkina Faso   Korea, Dem Rep (North)   Sri Lanka
Burundi   Kosovo   St Lucia
Cambodia   Kyrgyzstan   St Vincent & Grenadines
Cameroon   Laos\Lao PDR   Sudan
Cape Verde   Lesotho   Swaziland
Central African Republic   Liberia   Syria
Chad   Macedonia   Tajikistan
China   Madagascar   Tanzania
Colombia   Malawi   Thailand
Comoros   Maldives   Timor-Leste
Congo, Dem. Rep.   Mali   Togo
Congo, Republic of   Marshall Islands   Tonga
Cote d'Ivoire   Mauritania   Tunisia
Djibouti   Micronesia, Fed. Sts.   Turkmenistan
Dominica   Moldova   Tuvalu
Domicican Republic   Mongolia   Uganda
Ecuador   Montenegro   Ukraine
Egypt   Morocco   Uzbekistan
El Salvador   Mozambique   Vanuatu
Eritrea   Myanmar   Vietnam
Ethiopia   Namibia   West Bank & Gaza
Fiji   Nepal   Yemen
Gambia, The   Nicaragua   Zambia
Georgia   Niger   Zimbabwe
Ghana   Nigeria    

Legacy Collection 2
Radiology Logo
RadioGraphics Logo 
Tier 1

  • Bed count: 1-400
  • Associate College: Community, Technical, Further Education (UK), Tribal College
  • Community Public Library (small scale): general reference public library, museum, non-profit administration office

Tier 2

  • Bed count: 401-750
  • Baccalaureate College or University: Bachelor's is the highest degree offered
  • Master's College or University: Master's is the highest degree offered
  • Special Focus Institution: theological seminaries, Bible colleges, engineering, technological, business, management, art, music, design, law

Tier 3

  • Bedcount: 751-1,000
  • Research University: high or very high research activity without affiliated medical school
  • Health Profession School: non-medical, but health focused

Tier 4

  • Bed count: 1,001 +
  • Medical School: research universities with medical school, including medical centers

Tier 5

  • Consortia: academic, medical libraries, affiliated hospitals, regional libraries and other networks
  • Corporate
  • Government Agency and Ministry
  • Hospital System
  • Private Practice
  • Research Institute: government and non-government health research
  • State or National Public Library
  • Professional Society: trade unions, industry trade association, lobbying organization