ONLINE MONITORING OF ULTRASONIC SURGERY WITH MR-IMAGING

被引：40

作者：

DARKAZANLI, A ^{[1
]}

HYNYNEN, K ^{[1
]}

UNGER, EC ^{[1
]}

SCHENCK, JF ^{[1
]}

机构：

[1] UNIV ARIZONA,ARIZONA HLTH SCI CTR,DEPT RADIOL,1501 N CAMPBELL AVE,TUCSON,AZ 85724

来源：

JMRI-JOURNAL OF MAGNETIC RESONANCE IMAGING | 1993年 / 3卷 / 03期

关键词：

HYPERTHERMIA; MAGNETIC RESONANCE (MR) GUIDANCE; MUSCLES; MR; INJURY; RAPID IMAGING; TEMPERATURE MONITORING; ULTRASOUND; (US); THERAPEUTIC;

D O I：

10.1002/jmri.1880030313

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

Ultrasonic surgery was performed in rabbits and dogs under the guidance of magnetic resonance (MR) imaging. Two different MR techniques were used to guide the ultrasound beam. T2-weighted images showed lesion formation within a few minutes after sonication. T1-weighted GRASS (gradient-recalled acquisition in the steady state) images were sensitive to temperature elevations, permitting monitoring of lesion creation with MR imaging. Short TR T1-weighted GRASS images were not as helpful in detecting temperature elevation because of a reduction in signal-to-noise ratio. T2-weighted fast spin-echo images were compared with conventional T2-weighted spin-echo images. The former produced high-quality images in a fraction of the imaging time. This study shows that it is possible to monitor and guide ultrasonic surgery with MR imaging.

引用

页码：509 / 514

页数：6

共 22 条

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