肝脏占位性病变的影像学检查_周康荣.pdfVIP

1999 5 4 — 2 19 — 周康荣 　　:, , , 。 US C T , , CT , , 、、, , , , 。SE T W 、T W 1 2 SCT, 、RN 、DN 。 , CT 、MR 。MR CT 。 Imaging Examination of Hepatic Space Occupy ing Lesions Zhou K ang rong Dep ar tmen t of R adiology , ZhongS han H osp ita l, S hang ha i 200032 Abstract:In recent years, imaging examination of the li er, mainly focused on the space occupying or focal le- sions has been de eloping ery fast.Whate er the detectability or the accuracy of the preoperati e diagnosis of the fo- cal li er lesion were significantly impro ed.The study on the blood supply to the li er and hepatic lesions w as further deepened.US and the most commonly applied imaging modalities in the examnination of the li er, both ha e similar sensiti ity in the detection of the lesions, but dual phase dynamic enhancement SCT is better in the characterization of the lesions, and particularly, its arterial phase is appro ed to be ery aluble.How e er, it is still and quite confus- ing problem as to what is the criteria, initial time, ending time and duration of the enhancement of the arterial phase, as well as the relation w ith the contrast injection protocol.The author discussed it in detail on the basis of his own clinical and research data collected in a few years.It is also considered by the author that MRI including SE T W, 1 T W and dynamic enhancement with FMPSPGR sequence might be superior to SCT in the diagnosis of the focal li er 2 lesions, especiall