| Real-time contrast-enhanced ultrasonography of resected and immunohistochemically proven hepatic angiomyolipomas. | |
| | |
MedLine Citation:
|
PMID: 20020286 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
|
PURPOSE: The purpose of this study was to assess real-time contrast-enhanced ultrasound in patients with hepatic angiomyolipomas with respect to contrast-enhancing kinetics and enhancement patterns. MATERIALS AND METHODS: Nonlinear, low mechanical index (mechanical index less than 0.2), real-time contrast-enhanced ultrasonography was performed in 18 patients with 19 tumors after 2.4 mL bolus injection of contrast agent SonoVue. All the 19 tumors were surgically resected and immunohistochemically proven sporadic hepatic angiomyolipomas. RESULTS: Inhomogeneous hyperenhancing pattern was detected 16 tumors (84.2%) and homogeneous hyperenhancing pattern in 1 tumor (0.5%) in arterial phase and portal phase, 16 lesions remained hyperenhancement but one lesion became isoenhancement in late phase. Two lesions (10.5%) were detected inhomogeneously hypoenhancement compared to liver parenchyma during arterial, portal, and late phases, with only punctiform internal enhancement. The margin of all the lesions were smooth and well defined on contrast-enhanced ultrasonography, whereas no peripheral nodular arterial enhancement, centripetal filling, or spoke-wheel like enhancement pattern were depicted. Early strong enhancement in arterial phase, rapid washout of contrast agent, and appear hypoechoic to surrounding liver tissue during portal or late phase was not at all observed. CONCLUSION: Real-time contrast-enhanced ultrasonography can demonstrate typical imaging characteristics of hepatic angiomyolipomas in most cases, that is, inhomogeneous hyperenhancing pattern in arterial phase, prolonged hyperenhancement during portal and late phase with smooth and well-defined margin. This real-time dynamic imaging technique may therefore improve noninvasive characterization and differentiation of this rare, benign, hepatic mesenchymal neoplasm. |
| | |
Authors:
|
Rui Li; Xiaohang Zhang; Xing Hua; Ping Cai; Hua Zhong; Yanli Guo; Shiyi Ding; XiaoChu Yan |
Related Documents
:
|
16735186 - Are cerebral cavernomas truly nonenhancing lesions and thereby distinguishable from art... 7709246 - Gadopentetate-dimeglumine-enhanced mr imaging of osteonecrosis and osteochondritis diss... 17213756 - Accuracy of delayed post-contrast flair mr imaging for the diagnosis of leptomeningeal ... 9390706 - Enhanced magnetic resonance imaging of leptomeningeal angiomatosis. 3589776 - Acute orbital pseudotumor: ocular emergency on a general medical service. 10472666 - Magnetic resonance spectroscopy in focal epilepsy: 31p and 1h spectroscopy. |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Abdominal imaging Volume: 35 ISSN: 1432-0509 ISO Abbreviation: Abdom Imaging Publication Date: 2010 Dec |
Date Detail:
|
Created Date: 2010-11-15 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9303672 Medline TA: Abdom Imaging Country: United States |
Other Details:
|
Languages: eng Pagination: 676-82 Citation Subset: IM |
Affiliation:
|
Department of Ultrasound, SouthWest Hospital, Chongqing, People's Republic of China. raylee_7991@yahoo.com.cn |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Isolation and genetic manipulation of the antibiotic down-regulatory gene, wblA ortholog for doxorub...
Next Document: Association of increasing surgeon age with decreasing in-hospital mortality after coronary artery by...