Choi B I, Shin Y M, Han J K, Chung J W, Park J H, Han M C
Department of Radiology, Seoul National University College of Medicine, Korea.
Abdom Imaging. 1996 Jan-Feb;21(1):33-6. doi: 10.1007/s002619900005.
The objective of this study was to determine if spiral computed tomography (CT) results in increased rate of detection of focal hepatic nodules containing iodized oil after transcatheter oily chemoembolization when compared with conventional CT.
Spiral CT with single 24-s breath-hold technique was compared with conventional sequential CT in 42 patients with suspected hepatocellular carcinomas. Two sets of CT scans obtained after transcatheter oily chemoembolization were independently reviewed by two radiologists. The slice thickness was 10 mm for both data sets. The number and sizes of focal hepatic nodules containing iodized oil were documented. All 42 patients had at least hepatic nodule. The lesion size varied from 2 mm to 12 cm.
In six of the 42 patients, more hepatic nodules could be identified on spiral CT compared with conventional CT. When scans with spiral CT were used, 107 nodules were detected, whereas 98 nodules were detected with conventional CT. Overall, nine (9%) more nodules were detected with spiral CT (p = .002). If lesions larger than 2 cm are excluded, nine (15%) more lesions were detected with spiral CT (p = .002).
Spiral CT results in increased rate of detection of focal hepatic nodules after transcatheter oily chemoembolization, particularly in lesions smaller than 2 cm.
本研究的目的是确定与传统CT相比，螺旋计算机断层扫描（CT）在经导管油化疗栓塞术后是否能提高含碘油的局灶性肝结节的检出率。
对42例疑似肝细胞癌患者，将采用单次屏气24秒技术的螺旋CT与传统的序列CT进行比较。经导管油化疗栓塞术后获得的两组CT扫描图像由两名放射科医生独立评估。两组数据集的层厚均为10mm。记录含碘油的局灶性肝结节的数量和大小。42例患者均至少有一个肝结节。病变大小从2mm到12cm不等。
42例患者中，有6例螺旋CT显示的肝结节比传统CT更多。使用螺旋CT扫描时，共检测到107个结节，而传统CT检测到98个结节。总体而言，螺旋CT检测到的结节多9个（9%）（p = 0.002）。如果排除大于2cm的病变，螺旋CT检测到的病变多9个（15%）（p = 0.002）。
螺旋CT在经导管油化疗栓塞术后可提高局灶性肝结节的检出率，尤其是在小于2cm的病变中。
