CAJ | 학술논문

目的：探讨原发性小肝癌射频消融治疗后，CT灌注扫描对肿瘤残留及复发的早期评价价值。方法在28例小肝癌患者行RFA治疗后的第1、3、6、12个月行CT常规增强及灌注扫描，并与随访/穿刺病理结果对照分析。结果 RFA术后第1个月，25例瘤灶呈坏死样低灌注，其中6例见稍高灌注环；3例见灶周结节样高灌注区，后证实为肿瘤残留。术后第3、6、12月，7例见灶周结节样高灌注区，后经证实均为复发灶，其中3例常规增强扫描未发现。结论 C T灌注扫描对小肝癌射频消融术后肿瘤残留及复发具有重要的早期诊断价值。
목적：탐토원발성소간암사빈소융치료후，CT관주소묘대종류잔류급복발적조기평개개치。방법재28례소간암환자행RFA치료후적제1、3、6、12개월행CT상규증강급관주소묘，병여수방/천자병리결과대조분석。결과 RFA술후제1개월，25례류조정배사양저관주，기중6례견초고관주배；3례견조주결절양고관주구，후증실위종류잔류。술후제3、6、12월，7례견조주결절양고관주구，후경증실균위복발조，기중3례상규증강소묘미발현。결론 C T관주소묘대소간암사빈소융술후종류잔류급복발구유중요적조기진단개치。
Objective To evaluate the feasibil ty of CT perfusion imaging (CTPI) in finding tumor residual / recurrent after radiofrequency ablation (RFA) of smal hepatocel ular carcinoma (SHCC). Methods Al twenty-eight SHCC lesions underwent conventional enhanced and perfusion CT examination at the first, third, sixty and twelfth month post-RFA. Results At the first month post-RFA, 25 cases showed total necrosis with low perfusion, while 6 cases showed slightly high perfusion on the periphery area, 3 cases showed local tumor residual. At the third, sixty and twelfth month post-RFA, 25 total necrosis lesions shrinked, while 7 cases with high perfusion nodules were found, which were proved as tumor recurrence. Conclusion CT perfusion imaging (CTPI) can help to discover post-RFA local tumor residual and recurrence.