CAJ | 학술논문

目的利用超声-CT/MR融合成像技术分析肝局灶性病变常规超声显示困难的原因.方法 101个具有病理结果或者符合肝癌临床诊断标准,常规超声显示困难而CT/MR显示清楚的病灶入组本研究,使用超声-CT/MR融合成像技术,观察病灶的大小、位置、内部回声、周围肝实质背景等因素,分析病灶常规超声显示困难的原因.结果所有病例均能达到成功配准,配准所用时间2～6 min,平均(4.1±0.6)min.101个病灶中,93.1％ (94/101)直径≤20 mm,56.4％(57/101)位于近膈顶各肝段(如S2、S4、S7、S8),78.2％(79/101)内部为等回声,79.2％(80/101)存在肝硬化背景.结论肝局灶性病变(FLL)常规超声显示困难的主要原因包括病灶的大小、位置、内部回声及肝实质背景回声的影响.
목적 이용초성-CT/MR융합성상기술분석간국조성병변상규초성현시곤난적원인.방법 101개구유병리결과혹자부합간암림상진단표준,상규초성현시곤난이CT/MR현시청초적병조입조본연구,사용초성-CT/MR융합성상기술,관찰병조적대소、위치、내부회성、주위간실질배경등인소,분석병조상규초성현시곤난적원인.결과 소유병례균능체도성공배준,배준소용시간2～6 min,평균(4.1±0.6)min.101개병조중,93.1％ (94/101)직경≤20 mm,56.4％(57/101)위우근격정각간단(여S2、S4、S7、S8),78.2％(79/101)내부위등회성,79.2％(80/101)존재간경화배경.결론 간국조성병변(FLL)상규초성현시곤난적주요원인포괄병조적대소、위치、내부회성급간실질배경회성적영향.
Objective To analyze the reasons of focal liver lesions that difficult to detect by conventional ultrasound ultrasound-CT/MR fusion imaging.Methods 101 lesions which were confirmed by pathology or clinical diagnosis standards were recruited in the research.All of them were difficult to detect by conventional ultrasound but CT/MR display clearly.Ultrasound-CT/MR fusion imaging was used to observe the size,location and internal echo of the lesions,as well as the background of the surrounding liver parenchyma.Results All cases were successfully registrated,the registration time were 2-6min [(4.1 ±0.6)min].For these 101 lesions,93.1％(94/101) of which the diameter ≤20 mm,56.4％ (57/101) were located in hepatic segments near the diaphragm (such as S2,S4,S7,S8),78.2％ (79/101) were internal isoecho,and 79.2％(80/101) in the background of liver cirrhosis.Conclusions The important reasons that focal liver lesions detected difficult by conventional ultrasound includes:lesion size,location,internal echo and the hepatic background.