Efficacy of positron emission tomography in diagnosis of lateral lymph node metastases in patients with rectal Cancer: a retrospective study

Table 6 Sensitivity, specificity, PPV, NPV, FP, and FN using PET/CT and MDCT

	Sensitivity	Specificity	PPV	NPV	FP	FN	Accuracy
SUV_max Cutoff value 1.5	82.4%	93.4%	58.3%	97.9%	6.6%	17.6%	92.3%
MDCT Cutoff value 10 mm (short axis)	64.7%	95.4%	61.1%	96.0%	4.6%	35.3%	92.3%
MDCT Cutoff value 7 mm (short axis)	70.6%	82.1%	30.8%	96.1%	17.9%	29.4%	81.0%

The cutoff value of the lateral pelvic lymph node SUV_max was set at 1.5 and that of the short axis of the lymph nodes in MDCT was set at 10 mm and 7 mm
FP false positive, FN false negative, MDCT Multi-detector row computed tomography, NPV negative predictive value, PET positron emission tomography, PPV positive predictive value

ISSN: 1471-2407