摘要
目的 探讨三维超声不同成像方法在介入性诊疗中观察针尖与病灶关系、针尖及针道等。方法 对 2 3例患者 2 8个病灶由二维超声引导行介入性操作 ,用三维超声观察针尖与病灶关系、针尖及针道的显示水平。结果 ①针尖与病灶关系的显示 :以多平面方式最优 ,清晰显示率 (显示水平≥ 3分 )为95 .7%( 2 6/2 8) ,而与针具的大小无关。②针尖的显示 :18G的Bard针及 2 1G的PTC针以多平面方式显示最佳 ,而 14G的RF针以透明成像最大回声模式显示最佳 ;不同针具间 ,14G的RF针用透明成像的方式显示针尖优于 18G的Bard针及 2 1G的PTC针。③针道的显示 :18G的Bard针以多平面成像及表面成像显示为佳 ,2 1G的PTC针以多平面成像显示最佳 ,14G的RF针以最大回声模式显示最佳 ;不同针具间 ,18G的Bard针及 14G的RF针在各种成像条件下显示均优于 2 1G的PTC针。结论 三维超声应用于介入性诊疗中时 。
Objective To establish the imaging method of employing three dimensional ultrasound (3DUS) in interventional procedures.Methods After the percutaneous interventional procedures under two dimensional ultrasound (2DUS) guidance were applied in 28 lesions of 23 patients, 3DUS was utilized to visualize the displaying level of the relation between needle tip and lesion,as well as the clarity of needle tip and needle path. Results ①The relation between needle tip and lesion was best visualized by using multi planar mode of 3DUS, which was independent of the needle caliber. Of 95.7 % (26/28) lesions, the scores of displaying levels were greater than 3. ②The clarity of the needle tip was best delineated by using multi planar mode of 3DUS in 18 gauge (G) Bard needle and 21G PTC needle, whereas the transparent maximal mode was the choice to reveal the tip of 14G radiofrequency (RF) needle. With respect to different needles, the definition of the tip of 14G RF needle was better visualized than that of 18G Bard and 21G PTC needles by using transparent maximal mode. ③ The needle path was most clearly revealed by using multi planar and surface modes in 18G Bard needle, multi planar mode in 21G PTC needle, and transparent maximal mode in 14G RF needle. Among different needles, the path of 18G Bard needle, as well as 14G RF needle, was visualized more definitely than that of 21G PTC needle with all the imaging modes of 3DUS. Conclusions When 3DUS is employed in interventional procedures, different imaging modes should be selected according to different needles and objects to be observed. Thus the abundant diagnostic information provided by 3DUS can be utilized more adequately, and more precise and safe interventional procedures can be achieved.
出处
《中华超声影像学杂志》
CSCD
2002年第10期600-603,共4页
Chinese Journal of Ultrasonography
