Table 3 Apparent diffusion coefficient (ADC) and intravoxel incoherent motion parameter values for benign lesions with hyperintensity on DWI with b = 800 s/mm2 and no or non-suspicious contrast-enhancement (group A, n = 56), benign lesions with suspicious contrast-enhancement (group B, n = 30) and malignant lesions, which were all with suspicious contrast-enhancement (group C, n = 105)
From: Simplified intravoxel incoherent motion DWI for differentiating malignant from benign breast lesions
Group | ADC | D1' | D2' | f1' | f2' | D*' |
|---|---|---|---|---|---|---|
Vital tumour ROIs | ||||||
 A | 1,705 ± 704 (n = 56) | 1,721 ± 699 (n = 56) | 1,680 ± 707 (n = 56) | 16 ± 23 (n = 56) | 41 ± 68 (n = 56) | 14,960 ± 7,279 (n = 43) |
 B | 1,575 ± 421 (n = 30) | 1,519 ± 442 (n = 30) | 1,435 ± 437 (n = 30) | 50 ± 31 (n = 30) | 106 ± 44 (n = 30) | 19,130 ± 10,634 (n = 30) |
 A+B | 1,660 ± 621 (n = 86) | 1,650 ± 626 (n = 86) | 1,595 ± 634 (n = 86) | 28 ± 31 (n = 86) | 64 ± 68 (n = 86) | 16,674 ± 8,985 (n = 73) |
 C | 1,021 ± 181 (n = 105) | 957 ± 173 (n = 105) | 871 ± 172 (n = 105) | 56 ± 26 (n = 105) | 113 ± 42 (n = 105) | 19,046 ± 6,997 (n = 105) |
 A+B+C | 1,308 ± 540 (n = 191) | 1,269 ± 558 (n = 191) | 1,197 ± 571 (n = 191) | 43 ± 32 (n = 191) | 91 ± 60 (n = 191) | 18,073 ± 7,936 (n = 178) |
Hot spot ROIs | ||||||
 A | 1,705 ± 704 (n = 56) | 1,721 ± 699 (n = 56) | 1,680 ± 707 (n = 56) | 16 ± 23 (n = 56) | 41 ± 68 (n = 56) | 14,960 ± 7,279 (n = 43) |
 B | 1,578 ± 419 (n = 30) | 1,519 ± 442 (n = 30) | 1,435 ± 437 (n = 30) | 52 ± 31 (n = 30) | 108 ± 48 (n = 30) | 19,798 ± 11,442 (n = 30) |
 A+B | 1,661 ± 620 (n = 86) | 1,650 ± 626 (n = 86) | 1,595 ± 635 (n = 86) | 28 ± 31 (n = 86) | 65 ± 69 (n = 86) | 16,948 ± 9,454 (n = 73) |
 C | 1,057 ± 192 (n = 105) | 933 ± 187 (n = 105) | 835 ± 189 (n = 105) | 94 ± 39 (n = 105) | 161 ± 59 (n = 105) | 23,762 ± 10,431 (n = 105) |
 A+B+C | 1,329 ± 532 (n = 191) | 1,256 ± 568 (n = 191) | 1,177 ± 586 (n = 191) | 65 ± 48 (n = 191) | 118 ± 80 (n = 191) | 20,968 ± 10,563 (n = 178) |