1999
DOI: 10.1002/(sici)1522-2586(199904)9:4<562::aid-jmri9>3.0.co;2-x
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MR imaging of hypervascular liver tumors: Timing optimization during the arterial phase

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Cited by 28 publications
(7 citation statements)
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“…This may require moving the tracker away, above the level of the celiac artery. A maximum monitor period, ranging from 6–12 seconds, can be set as a fail‐safe mechanism, in the instance that the “tracker” does not detect contrast arrival . Not all scanners are equipped with automated bolus detection, especially older systems.…”
Section: Pitfalls Of Pre‐ and Postcontrast T1‐weighted Sequencesmentioning
confidence: 99%
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“…This may require moving the tracker away, above the level of the celiac artery. A maximum monitor period, ranging from 6–12 seconds, can be set as a fail‐safe mechanism, in the instance that the “tracker” does not detect contrast arrival . Not all scanners are equipped with automated bolus detection, especially older systems.…”
Section: Pitfalls Of Pre‐ and Postcontrast T1‐weighted Sequencesmentioning
confidence: 99%
“…While selection of a specific timing technique is determined by available technology and institutional preference, both the test bolus and bolus tracking techniques yield more consistent late arterial phase timing compared with the fixed timing technique …”
Section: Pitfalls Of Pre‐ and Postcontrast T1‐weighted Sequencesmentioning
confidence: 99%
See 1 more Smart Citation
“…Bae et al () who studied T full_bolus at different injection durations in the abdominal aorta of pigs concluded that protocols whose contrast material injection duration was shorter than T test_peak yielded T full_bolus equal to half of the injection duration. Although the T tumor value has been reported to vary from 4 to 12 s () we defined the time delay to be 8 s. Because the gadolinium concentration at the time of central k ‐space acquisition generally determines the intravascular signal intensity (), we subtracted the time to the center of the k ‐space acquisition, an interval that varies from patient to patient due to the scan duration. Consequently we calculated the optimal HAP using the formula: T test _ peak + T full _ bolus + T tumor T k _ space = T test _ peak + ( half of the contrast injection duration ) + 8 T k _ space .…”
Section: Methodsmentioning
confidence: 99%
“…The FDA-approved dose is 0.1 mmol[Gd]/kg resulting in 0.1 mL/kg body weight for Gd-BT-DO3A and 0.2 mL/kg body weight for the other five extracellular/interstitial CM (table I) [50, 60]. The optimal intravenous infusion is performed with an automatic injector (injection rate ~2–3 mL/s) and is followed by a saline flush of 15–30 mL [61, 62]. …”
Section: Introductionmentioning
confidence: 99%