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Differentiation of cavernous hemangioma from schwannoma of the orbit: a dynamic MRI study.
Differentiation of cavernous hemangioma from schwannoma of the orbit: a dynamic MRI study.
- Source :
-
AJR. American journal of roentgenology [AJR Am J Roentgenol] 2004 Dec; Vol. 183 (6), pp. 1799-804. - Publication Year :
- 2004
-
Abstract
- Objective: The purpose of this study was to determine the capability of dynamic contrast MRI to differentiate hemangioma from schwannoma of the orbit.<br />Materials and Methods: Sixteen patients (three males and 13 females; mean age, 39 +/- 17.3 [SD] years; age range, 10-71 years) with unilateral orbital tumors, including eight cavernous hemangiomas and eight schwannomas, were examined. In addition to conventional MRI, we performed a dynamic contrast study (fast spin-echo sequence, 20-sec interval) after bolus administration of the contrast material (gadopentetate dimeglumine, 0.1 mmol/kg). We evaluated the features of the contrast enhancement spread pattern and the tumors' time-intensity curves.<br />Results: In the early phase, all the hemangiomas started the enhancement from one point or portion, although all the schwannomas started the enhancement from a wide area. The difference in the contrast-enhancement spread pattern features between the two types of tumors was statistically significant (p < 0.0001). The gradient of the time-intensity curve did not show a significant difference.<br />Conclusion: Hemangioma and schwannoma of the orbit can be differentiated by the contrast-enhancement spread pattern on dynamic MRI.
Details
- Language :
- English
- ISSN :
- 0361-803X
- Volume :
- 183
- Issue :
- 6
- Database :
- MEDLINE
- Journal :
- AJR. American journal of roentgenology
- Publication Type :
- Academic Journal
- Accession number :
- 15547232
- Full Text :
- https://doi.org/10.2214/ajr.183.6.01831799