Detecting Triple-Vessel Disease with Cadmium Zinc Telluride-Based Single-Photon Emission Computed Tomography Using the Intensity Signal-to-Noise Ratio between Rest and Stress Studies

Table 5

Diagnostic performances of QPS scores and SNR parameters in specific age, gender, and BMI groups.

Variable		SRS	SSS	SDS			RSNR
Age
<62.5	51	25/74/59	69/63/65	75/74/75	81/43/55	69/83/78	81/91/88
≥62.5	51	40/71/59	84/65/75	64/69/67	84/42/63	80/66/73	88/88/88
Sex
Male	65	35/76/62	83/64/71	65/71/69	87/29/49	74/86/82	87/90/89
Female	37	33/74/54	72/63/68	72/74/73	78/74/76	78/53/65	83/89/86
BMI
<25.3	51	29/70/53	81/63/71	62/73/69	86/43/61	71/83/78	95/87/90
≥25.3	51	40/81/65	75/65/69	75/71/73	80/42/57	80/68/73	75/94/86

Numbers are presented as percentages of sensitivity/specificity/accuracy; for age and BMI, the cutoff for grouping was determined from their medians.