Wilson Stephanie R, Jang Hyun-Jung, Kim Tae Kyoung, Iijima Hiroko, Kamiyama Naohisa, Burns Peter N
Department of Medical Imaging, Toronto General Hospital, University of Toronto, Toronto, Ontario, Canada.
AJR Am J Roentgenol. 2008 Mar;190(3):691-5. doi: 10.2214/AJR.07.3116.
We sought to perform a preliminary evaluation of temporal maximum intensity projection (MIP) of focal hepatic masses in selected patients. The technique processes real-time contrast-enhanced sonography images by integrating the path of moving bubbles to depict vascular morphology. Following a high-intensity ultrasound pulse that disrupts bubbles within the scan plane, MIP images the trajectories of fresh bubbles replenishing the plane and revealing their course.
Vascular morphology is depicted at a level or detail not seen before with sonography. High-frame-rate sequences of less than one second uniquely show arterial structure in liver lesions.
我们试图对选定患者肝脏局灶性肿块的时间最大强度投影(MIP)进行初步评估。该技术通过整合移动气泡的路径来处理实时超声造影图像,以描绘血管形态。在高强度超声脉冲破坏扫描平面内的气泡后,MIP对补充该平面的新鲜气泡轨迹进行成像,并显示其行程。
血管形态的描绘达到了超声检查前所未有的水平或细节。不到一秒的高帧率序列能独特地显示肝脏病变中的动脉结构。