Table 4.
Patients with FLLs not detected on conv-DWI or L1-DWI.
| Number of FLLs | FLLs not seen | Location (liver segment) |
Size (mm) |
Type of FLL |
Possible cause for non-detectability |
Primary tumor |
|||
|---|---|---|---|---|---|---|---|---|---|
| Conv-DWI | L1-DWI | Conv-DWI | L1-DWI | ||||||
| Group A | |||||||||
| Patient 1 | 6 | 4 | -2 |
II/III VII |
5 4 |
Metastases |
Motion artefact None-conclusive |
Colorectal carcinoma | |
| Group B | |||||||||
| Patient 1 | 27 | 28 | − 1 | VI | 4 | Metastasis | Motion artefacts | Melanoma | |
| Patient 2 | 17 | 16 | − 1 | IVa | 5 | Metastasis | None-conclusive | Colorectal carcinoma | |
| Patient 3 | 26 | 20 | − 6 | II, V, VII, VIII | 5–7 | Metastases | None-conclusive | Pancreatic cancer | |
| Patient 4 | 11 | 10 | − 1 | IVa | 3 | Liver cyst | None-conclusive | Colorectal carcinoma | |
| Patient 5 | 3 | 2 | − 1 | IVb | 4 | Liver hemangioma | None-conclusive | Cervical cancer | |
| Total of missed FLL | − 1 | − 11 | |||||||
FLL Focal liver lesion, conv-DWI Single-shot EPI-based DWI with parallel imaging reconstruction, L1-DWI Single-shot EPI-based DWI with L1-regularized iterative reconstruction.