浅析医学超声谐波成像技术

Analysis of the Medical Ultrasonic Harmonic Imaging

当患者前来就医时,医生需要对其进行诊断,而诊断除了简单的望闻问切之外,还需要通过先进的诊断技术,才能够进一步的明确患者是否患有某种疾病。超声技术是20世纪发展起来的高新技术,是一种新兴的、多学科交叉的边缘科学。医学超声技术的应用具有一定的规律,其在检测B型以及血流时,所应用的都是线性声学规律,但是这里强调的线性是相对的,而且具有局部特性,非线性才是全面以及绝对的。通过大量的实践可以发现医学超声的确会出现非线性现象,只是很长一段时间,都没有引起人们的重视。由于医学超声研究越加深入,非线性现象才引起了人们的重视,对其进行深入的研究,能够提高医学诊断的准确性。非线性技术最为典型的代表就是谐波成像技术,该技术是近些年来新研发的一种新技术,与传统的超声影像技术相比,具有优势,传统的影像技术也称之为基波成像,所使用的设备主要是用来接收以及发射回波信号相同的影像。尽管这种基波成像在医学界起到了重要的作用,但是无法满足现今的医学诊断要求。

When patients come for medical treatment,doctors need to diagnose,and the diagnosis of beyond simple look and smel,also needs the advanced diagnosis technology,to be able to determine if patients further the patients suffering from a disease.Ultrasound technology is a high-tech developed in the 20th century,it is a new,interdisciplinary edge science. Had certain law application of medical ultrasound technology,the detection of B and blood flow,the application was linear law of acoustics,but linear emphasis here was relative,and the local characteristic,the nonlinear was complete and absolute. Through a lot of practice found in medical ultrasound appeared phenomenon,but a long period of time,it caused the attention of people. The medical ultrasound research more deeply,nonlinear phenomena that attracted the attention of people,because of its in-depth study,improved the accuracy of medical diagnosis.Nonlinear technology most is the typical representative of harmonic imaging technology, this technology is a new technology in recent years,new development,compared with the traditional ultrasonic imaging technology,has obvious advantages. The traditional imaging techniques also known as fundamental imaging,the use of the equipment is mainly used to receive and transmit the same video echo signal.