Stehouwer BL, Klomp DWJ, Korteweg MA, Verkooijen HM, Luijten PR, Mali WPTM, van den Bosch MAAJ, Veldhuis WB. 7 T versus 3T contrast-enhanced breast magnetic resonance imaging of invasive ductulolobular carcinoma: first clinical experience.
Magn Reson Imaging 2012;
31:613-7. [PMID:
23116848 DOI:
10.1016/j.mri.2012.09.005]
[Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Revised: 05/01/2012] [Accepted: 09/17/2012] [Indexed: 12/24/2022]
Abstract
PURPOSE
Here we describe our first experience with contrast-enhanced (CE) MRI of breast cancer at 7 tesla (T), compared to 3T and histopathology.
MATERIALS AND METHODS
A 52 year old female patient with a mammographically suspicious breast mass (BI-RADS V) underwent 7 T CE-MRI. Results were described according to the BI-RADS-MRI criteria and compared to 3T and histopathology.
RESULTS
After contrast administration, a homogeneously enhancing, irregular spiculated mass was depicted at both 3T and 7 T; sizes were identical. The most malignant kinetic curve was characterized by a rapid initial rise followed by a wash-out pattern in the delayed phase, i.e. a type 3 curve, at both field strengths. Even though T1-effects of contrast agents are suggested to be reduced at higher fields, quantification of contrast enhancement-to-noise ratio showed a ratio of 4.6 at 7 T and 2.8 at 3T when comparing contrast-to-noise of the mass before and after contrast administration. Both examinations, using a single dose of gadolinium-based contrast agent, achieved good image quality. Final histopathological evaluation showed an invasive ductulolobular carcinoma with an intraductal component.
CONCLUSION
This initial experience suggests that clinical contrast-enhanced 7 T MRI of the breast is technically feasible and may allow BI-RADS-conform analysis.
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