5.其它CT技术以及未来趋势有些计算机断层摄影方法不用X线,或者有特别的X线几何结构,但就使用图象重建技术这一点来说,与X线透射CT是相似的。本文将讨论其中最重要的一些CT技术。 (1)核医学利用病人体内的同位素产生同位素分布的CT图象最早见于Kuhl和Edwards的著作。自从X线透射CT问世以后,从事核医学的公司担心CT会使核医学变为过时,因此 5. Other CT Techniques and Future Trends Some computed tomography methods do not use X-rays or have special X-ray geometry, but are similar to X-ray CT in terms of using image reconstruction techniques. This article will discuss some of the most important CT techniques. (1) Nuclear Medicine The CT images of the isotopes produced by the patient’s body were first seen in the writings of Kuhl and Edwards. Since the advent of X-ray CT, companies engaged in nuclear medicine have feared that CT will turn nuclear medicine out of date and therefore