For reducing the gadolinium dose of patients with metastasis, we seek a valuable tool to lower contrast agent doses but keep MR image quality, which is important for patients’ healthcare. We analyzed the optimum scanning time for 1/2 dose CE-T2FLAIR, and compared the CR value of metastases and enhancement degree among the 1/2 dose CE-T2 FLAIR, 1/2 dose CE-T1WI and full dose CE-BRAVO sequence. Our team further analyzed the relationship between enhancement pattern, lesion size and image quality. Our study not only reduced the harm from GBCA administrations but also improved detection rate of brain metastases.
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