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首页> 外文期刊>Journal of computer assisted tomography >Radiologic appearance and complications of percutaneous computed tomography-guided radiofrequency-ablated pulmonary metastases from colorectal carcinoma.
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Radiologic appearance and complications of percutaneous computed tomography-guided radiofrequency-ablated pulmonary metastases from colorectal carcinoma.

机译：大肠癌经皮计算机断层扫描引导的射频消融肺转移的放射学表现和并发症。

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摘要

OBJECTIVES: To describe the morphologic appearance over time of percutaneously radiofrequency-ablated pulmonary metastases from colorectal cancer and to focus on the occurrence of the most common complications. METHODS: Twenty patients have been treated with computed tomography (CT)-guided radiofrequency ablation (RFA) for 41 pulmonary metastases using the expandable 14-gauge StarBurst XL RF electrode along with the 1500 generator (RITA Medical Systems, Mountain View, CA). The average number of lesions per patient was 2.05, ranging from 1 to 4 lesions. RESULTS: The typical feature of the radiofrequency-ablated site immediately after the procedure was a light bulb-shaped opacification surrounding the probe. This became a more spherically shaped feature over time and steadily decreased in size. At 3 months after RFA, the lesion was approximately the same size as at baseline. The lesion subsequently shrank within the following 3 months, usually with a small scar remaining. Pneumothorax occurred in 50% of the patients, and a chest tube was required in 50% of the patients affected. Cavitation occurred in 24% of the lesions. Intraparenchymal hemorrhage was observed in 7.5% of the cases. CONCLUSIONS: Image-guided pulmonary RFA is a safe minimally invasive therapy modality with acceptable morbidity. Ablated lesion size usually exceeds the dimensions of the initial tumor for the first 3 months after ablation and continuously shrinks thereafter.
机译：目的：描述经直肠射频消融的结直肠癌肺转移随时间的形态学特征，并着眼于最常见并发症的发生。方法：20例患者已经使用可扩展的14口径StarBurst XL RF电极和1500发生器（RITA Medical Systems，Mountain View，CA）通过计算机断层扫描（CT）引导的射频消融（RFA）治疗41例肺转移。每位患者的平均病变数为2.05，范围为1至4个病变。结果：手术后立即射频消融部位的典型特征是探头周围呈灯泡状浑浊。随着时间的流逝，这变成了球形的特征，尺寸逐渐减小。 RFA后3个月，病变的大小与基线大致相同。病变随后在接下来的3个月内缩小，通常残留少量疤痕。 50％的患者发生气胸，受影响的患者中有50％需要胸管。空洞发生在24％的病变中。在7.5％的病例中观察到实质内出血。结论：图像引导的肺RFA是一种安全的微创治疗方式，具有可接受的发病率。消融后的前三个月，消融的病变大小通常超过了初始肿瘤的大小，此后不断缩小。

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