频率解调超声：肝脏评估。研究进行中。

Frequency-demodulated US: evaluation in the liver. Work in progress.

作者信息

Aufrichtig D, Lottenberg S, Hoefs J, Ferrari L A, Friedenberg R M, Kanel G, Cole-Beuglet C, Leeman S

出版信息

Radiology. 1986 Jul;160(1):59-64. doi: 10.1148/radiology.160.1.3520656.

DOI:10.1148/radiology.160.1.3520656

PMID:3520656

Abstract

Frequency modulated (FM) imaging is a new ultrasound (US) modality that uses pulse-echo signal instantaneous frequency in addition to the conventional envelope information. Eight features of the FM image in nondiseased livers are described. The technique is evaluated in a study of 34 patients with biopsy-proved diffuse liver disease. Visual grading of FM US image features shows good correlation with levels of biopsy-graded hepatic fibrosis. Patients with diffuse parenchymal liver disease often exhibit evidence of the abnormality when FM liver imaging is used, while such evidence is not as well demonstrated with conventional envelope (AM) imaging.

摘要

调频（FM）成像是一种新的超声（US）模态，它除了利用传统的包络信息外，还使用脉冲回波信号的瞬时频率。本文描述了正常肝脏中FM图像的八个特征。在一项对34例经活检证实患有弥漫性肝病的患者的研究中对该技术进行了评估。FM超声图像特征的视觉分级与活检分级的肝纤维化水平具有良好的相关性。当使用FM肝脏成像时，弥漫性实质性肝病患者常表现出异常迹象，而传统的包络（AM）成像则不能很好地显示这些迹象。