Noncontrast-enhanced MRI for evaluation of breast lesions: comparison of noncontrast-enhanced high spectral and spatial resolution (HiSS) images versus contrast-enhanced fat-suppressed images.

摘要: This issue of Academic Radiology contains a report by Medved et al (1) on their experience with noncontrast breast magnetic resonance imaging (MRI) in the evaluation lesions using high spectral and spatial resolution (HiSS). Within constraints study protocol, analysis data shows that differentiation benign from malignant technique was comparable to achieved dynamic contrast MRI. The transformation MRI into examination remains hypothetical, but some advantages could be conveyed technology are obvious. Contrast is expensive requires placement an intravenous line for administration. Its elimination would decrease cost discomfort. For those few women allergy material or impaired renal function, become feasible study. usefulness imagining not limited time washout performing biopsy, particularly multiple sites both breasts, also self-evident. In specific within breast, use HiSS other techniques convey additional advantage Spectroscopy identification volume evaluated, as does reported this journal. require contrast. If undergoing done without usingcontrast,a noncontrastexamination beperformed specifically obtain images spectroscopy data. Because enables increased resolution, significant improvement ability diagnose disease result. It well known fine details can hold key diagnosis. Small spicules, seen routine mammogram visualized only magnification technique, convert imager’s impression entity possible malignancy. context MRI, failure image microcalcifications associated carcinoma well-known cause false-negative studies (2). developed extent were included acquired during represent advance disease. such detail has been beyond capabilities one goals improved technology. Higher strength magnets have incorporated clinical achieve among goals. led progressive increase magnet early equipment 0.5 Tesla current incorporating 3.0 magnets. Although its single-slice application report, might improve diagnostic accuracy. As isolated eliminating need administer contrast, obvious limitation sacrificingkineticdata.Thereislittledoubtthatasspatialreso