| http://www.w3.org/ns/prov#value | - With most of the currently available MR sequences and contrast agents, EKG triggering is impractical for first-pass, contrast-enhanced MR angiography (MRA) due to the marked lengthening of data acquisition beyond the duration of the contrast bolus.Blood pool MRI contrast agents have been under development for some time, including an agent originally referred to as MS-325 [4, 5], but with the gener
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