AJR. American journal of roentgenology · 2007
Subtraction imaging: applications for nonvascular abdominal MRI.
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Newatia Amit, Khatri Gaurav, Friedman Barak, Hines John
Аннотация
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.
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.