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. Author manuscript; available in PMC: 2021 Feb 3.
Published in final edited form as: Genet Med. 2020 Aug 3;22(12):2101–2107. doi: 10.1038/s41436-020-0921-3

Table 3.

Total cohort tumor detection rates using imaging screening

HCI U of M Penn Total
Total cohort imaging scans, n 180 186 125 491
Including recurrences
Scans with positive screens, n (%) 26 (14%) 8 (4%) 15 (12%) 49 (10%)
Percent true positive tumor screen found on first screen 77% 100% 87% 84%
Scans with recurrence of PGL/PCC, n (%) 1 (0.56%) 0 (0%) 2 (1.6%) 3 (0.61%)
Excluding recurrences
Scans with positive screens, n (%) 25 (14%) 8 (4%) 13(10%) 46 (9%)
Percent true positive tumor screen found on first screen 76% 100% 92% 85%
SDHx-related tumors identified on scans, n
PGL/PCC 24 6 11 41
GIST 0 0 0 0
RCC 1 2 2 5
Total cohort subjects, n 100 95 68 263
Including recurrences
Subjects with true positive screens, n (%) 25 (25%) 8 (8%) 14 (21%) 47 (18%)
Excluding recurrences
Subjects with true positive screens, n (%) 24 (24%) 8 (8%) 13 (19%) 45 (17%)
Additional information
Total cohort imaging scans, n 180 186 125 491
Scans with false positive, n (%) 0 (0%) 4 (2%) 0 (0%) 4 (0.81%)
Scans with incidental actionable, n (%) 24 (13%) 26 (14%) 25 (20%) 75 (15%)
Scan with inconclusive finding, n (%) 2 (1%) 1 (0.54%) 0 (0%) 3 (0.61%)

HCI: Huntsman Cancer Institute; U of M: University of Michigan; Penn: University of Pennsylvania

True positive means tumor was SDHx-related including PGL/PCC, RCC or GIST