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  • Title: Subtraction imaging: applications for nonvascular abdominal MRI.
    Author: Newatia A, Khatri G, Friedman B, Hines J.
    Journal: AJR Am J Roentgenol; 2007 Apr; 188(4):1018-25. PubMed ID: 17377038.
    Abstract:
    OBJECTIVE: In this article we will illustrate the role of subtraction imaging for abdominal MRI applications. CONCLUSION: Subtraction imaging has multiple applications for imaging the mediastinum, abdomen, and pelvis. Removing any preexisting signal of T1 unenhanced images causes contrast enhancement within a mass to become more conspicuous on subtracted sequences. This is helpful when evaluating a lesion with high signal on unenhanced T1-weighted sequences, where visual detection of enhancement can be difficult on conventional MRI.
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