Vural Topuz Özge, Görtan Fatma Arzu, Kaya Döner Zübeyde Rana, Önsel Çetin, Sayman Haluk Burçak
University of Health Sciences, Okmeydanı Training and Research Hospital, Clinic of Nuclear Medicine, İstanbul, Turkey.
University of Health Sciences, Ankara Atatürk Training and Research Hospital, Clinic of Nuclear Medicine, Ankara, Turkey.
Mol Imaging Radionucl Ther. 2018 Jun 7;27(2):66-72. doi: 10.4274/mirt.70783.
We investigated the utility of PET/CT in cutaneous melanoma (CM) patients with pathological negative sentinel lymph nodes (SLN), within the first year.
The results of PET/CTs and SLN biopsy (SLNB) in 65 patients (39 male and 26 female, mean age 53.8) with a PET/CT in the first postoperative year were evaluated. Within this cohort, the utility of early PET/CT imaging was assessed in patients with negative SLNB. McNemar test was used to compare PET/CT findings with SLNB results.
Out of 43 patients with pathologically positive SLNs, 23 patients (53.5%) had positive and 20 patients (46.5%) had negative findings on PET/CT within the first postoperative year. On the other hand, PET/CT results of 22 patients with negative SLNBs were found to be negative in 19 patients (86.4%) and positive in 3 patients (13.6%). For the patients with negative SLNB results, the detection rate of distant metastasis with PET/CT was significantly lower (p<0.001) than that in patients with positive SLNBs.
Our results showed that F-FDG PET/CT will most likely (86.4%) be negative during the first postoperative year in patients with a negative SLNB. Therefore, it is concluded that this modality would not provide any significant clinical contribution within this time frame.
我们研究了正电子发射断层扫描/计算机断层扫描(PET/CT)在术后第一年病理检查前哨淋巴结(SLN)为阴性的皮肤黑色素瘤(CM)患者中的应用价值。
对65例(39例男性和26例女性,平均年龄53.8岁)在术后第一年接受PET/CT检查的患者的PET/CT和前哨淋巴结活检(SLNB)结果进行评估。在该队列中,对SLNB阴性的患者评估早期PET/CT成像的应用价值。采用McNemar检验比较PET/CT结果与SLNB结果。
在43例病理检查前哨淋巴结阳性的患者中,23例(53.5%)在术后第一年内PET/CT检查结果为阳性,20例(46.5%)为阴性。另一方面,22例SLNB阴性患者的PET/CT结果显示,19例(86.4%)为阴性,3例(13.6%)为阳性。对于SLNB结果为阴性的患者,PET/CT检测远处转移的比率显著低于(p<0.001)SLNB结果为阳性的患者。
我们的结果表明,SLNB阴性的患者在术后第一年内,F-FDG PET/CT很可能(86.4%)为阴性。因此,得出结论,在这个时间段内,这种检查方式不会提供任何显著的临床价值。