3053305 MPVI microscopic portal vein invasion 13 3053306 MPVI mating population VI 4 3053312 MPVI morphological plaque vulnerability index 2 3053308 MPVI major portal vein invasion 1 3053307 MPVI marginal velopharyngeal inadequacy 1 3053311 MPVI Melody pulmonary valve implantation 1 3053310 MPVI multilevel pulse-voltage injection 1 3053309 MPVI Multiple-Point Variance Increase Analysis 1