Table 3.
Scores of Artefact (A), Noise (N), Edge Detection (ED) and overall Image Quality (IQ) in ten patients undergoing 4D-CT and 4D-MRI during abdominal radiotherapy planning. Note two patients (patient 1 and 7) received adjuvant treatment so tumour edge detection was not applicable (NA). Note that lower scores indicate a superior image score.
| Patient | 4D-CT |
4D-MRI |
||||||
|---|---|---|---|---|---|---|---|---|
| A | N | ED | IQ | A | N | ED | IQ | |
| 1 | 1 | 2 | NA | 1 | 2 | 1 | NA | 2 |
| 2 | 1 | 2 | 3 | 2 | 2 | 2 | 1 | 1 |
| 3 | 1 | 2 | 3 | 1 | 2 | 1 | 1 | 1 |
| 4 | 4 | 2 | 3 | 4 | 3 | 3 | 3 | 3 |
| 5 | 1 | 1 | 3 | 1 | 2 | 2 | 3 | 1 |
| 6 | 2 | 2 | 1 | 1 | 2 | 2 | 1 | 1 |
| 7 | 2 | 3 | NA | 4 | 2 | 2 | NA | 1 |
| 8 | 3 | 3 | 3 | 3 | 2 | 2 | 1 | 1 |
| 9 | 4 | 2 | 2 | 4 | 2 | 2 | 1 | 2 |
| 10 | 2 | 2 | 4 | 2 | 2 | 2 | 2 | 2 |
| Median | 2 | 2 | 3 | 2 | 2 | 2 | 1 | 1 |