MR Portography Using Non-Contrast-Enhanced Time-Spatial Labeling Inversion Pulse (Time-SLIP) -Comparison Between 3T and 1.5T-

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according almost angiography approval arterial artifacts atlas background become better binding blood board body branches central certain cirrhosis clearly clinical coil consent considerable considerably contrast degrade degree depict deviation diaphragm dimensional employment enhance enhanced enrolled equal equation evaluate evaluated evaluation even examinations except fast field flexibility flow gaining grade half healthy hepatic hills hospital informed institute institutional intensity interfered interpolation intrinsic inversion japan labeled labeling liver long longer lowest makes many material matrix medical movement near noise null obliquely observers optimization overcome paired parallel patients peripheral permit placed portal powered precise preliminary prolonged pulse pulses quality radiology rapidly recovery reported reports respectively review score section selective separately shimming significantly slip slow source space spatial spatially speeder spin spine statistical subjective superior suppressed suppresses suppression temporally upper usefulness vantage varying vein veins vessel vessels view visualization volunteers women years