Table 1.

This table lists the pixel intensities of the three nodules shown in Figure 4A. Mean, SD, Maximum, and Z-scores are given. The Z-scores show that the maximum pixel intensity in the location of the visualized nodules is always at least 2.9 SD above the mean, indicating that the presumed 1–4 pixel nodules are not likely to be due to image noise.

		MEAN	SD	Maximum	Z-Score	Expected pixel frequency at and above this Z -score
Nodule 1	Pre-contrast	599	332	1567	2.92	4 per 1000
	Post scL-gad-d	667	391	1946	3.27	5 per 10,000
Nodule 2	Pre-contrast	591	299	1589	3.34	4 per 10,000
	Post scL-gad-d	665	339	2274	4.75	1 per 100,000
Nodule 3	Pre-contrast	566	278	1588	3.68	1 per 10,000
	Post scL-gad-d	981	515	2542	3.03	1 per 1000