Table 1.
Patient characteristics and magnetic resonance imaging acquisition details for training and internal validation (CYSTic) and clinical validation data sets
Training and Internal Validation Data Set (CYSTic) |
Clinical Validation | ||||
---|---|---|---|---|---|
Study center | Groningen | Sheffield | Bergamo | Brest | |
Mean age (SD), yr | 43.3 (12.8) | 43.7 (14.7) | 43.8 (11.2) | 46.8 (13.4) | 51.5 (5.6) |
Sex (male or female) | M = 34, F = 44 |
M = 30, F = 34 |
M = 19, F = 22 |
M = 20, F = 24 |
M = 17, F = 16 |
Genotype PKD1 (%) | PKD1 = 44 (78.2%) | PKD1 = 50 (78.1%) | PKD1 = 27 (65.9%) | PKD1 = 43 (97.7%) | |
Mayo classification | Class 1 = 72, Class 2A = 6 | Class 1 = 51, Class 2A = 10, Class 2B = 3 |
Class 1 = 33, Class 2A = 8 | Class 1 = 39, Class 2A = 5 | |
Scanner | Siemens Avanto, Avantofit, Aera | Siemens Avanto | GE Optima MR450W | GE Optima MR450W | Siemens Avantofit |
Selected sequence | TRUFI | TRUFI | 3D FIESTA | 3D FIESTA | TRUFI |
Total scans | 78 | 64 | 41 | 44 | 48a |
M, male; F, female.
Note that genotype and Mayo classification information were not available for all patients in the clinical validation set.
15 patients had >1 scan