Table 5.
Results of the volumetric assessments of lymph nodes volumes (nodal gross tumor volume, nGTV) obtained from computed tomography (CT), magnetic resonance (MRI) and 18-fluorine-labeled fluorodeoxyglucose positron emission tomography (18F-FDG–PET) images in each patient (1–10)
| No. of pt | nGTV CT cm3 | nGTV MRI cm3 (%) | nGTV PET vis vis cm3 (%) | nGTV PET20% cm3 (%) | nGTV PET30% cm3 (%) | nGTV PET40% cm3 (%) | nGTV PET50% cm3 (%) |
|---|---|---|---|---|---|---|---|
| 1 | 4 | 9.14 (228.5) | 5.07 (126.7) | 3.62 (90.5) | 2.36 (59) | 1.61 (40.3) | 1.02 (22.5) |
| 1.56 | 3.54 | 0 | – | – | – | – | |
| 2.11 | 4.31 | 0 | – | – | – | – | |
| 1.59 | 0 | 0 | – | – | – | – | |
| 2 | 0 | 4.18 | 2.35 | – | – | – | – |
| 4.19 | 4.13 (98.6) | 1.34 (32) | 10.37 (247.5) | 8.68 (207.2) | 6.15 (146.8) | 3.56 (85) | |
| 1.52 | 2.42 (159.2) | 0.39 (59.3) | 8.54 (561.8) | 5.54 (364.5) | 3.16 (207.9) | 2.02 (132.9) | |
| 1.43 | 0 | 0 | – | – | – | – | |
| 3 | 5.8 | 2.11 (36.4) | 0.77 (13.3) | 3.94 (68) | 2.14 (36.9) | 0.99 (17.1) | 0.44 (7.6) |
| 2.27 | 2.55 | 0 | – | – | – | – | |
| 0.78 | 1.46 | 0 | – | – | – | – | |
| 0 | 0 | 0.47 | – | – | – | – | |
| 4 | 5.3 | 8.09 (152.6) | 4.9 (92.5) | 23.13 (436.4) | 9.26 (174.7) | 5.54 (104.5) | 3.26 (61.5) |
| 1.8 | 3.01 (162.2) | 1.6 (88.8) | 9.66 (536.7) | 7.76 (431.1) | 4.55 (252.8) | 2.23 (123.9) | |
| 0.65 | 0 | 1.5 | – | – | – | – | |
| 0.67 | 0 | 0 | – | – | – | – | |
| 0.4 | 0 | 0 | – | – | – | – | |
| 5 | 5.6 | 6.2 (110.7) | 2.5 (44.6) | 5.14 (91.8) | 2.31 (41.25) | 1.27 (22.7) | 0.69 (12.3) |
| 1.9 | 3.46 (182.1) | 0.6 (31.6) | 4.41 (232.1) | 3.13 (164.7) | 1.78 (93.7 ) | 1.01 (53.2) | |
| 0 | 1.48 | 0.8 | – | – | – | – | |
| 0 | 1.2 | 0 | – | – | – | – | |
| 1.38 | 0 | 0 | – | – | – | – | |
| 6 | 0 | 0 | 0 | – | – | – | – |
| 7 | 0 | 0 | 0 | – | – | – | – |
| 8 | 1.06 | 2.14 (201.9) | 0.88 (83) | 2.57 (242.5) | 1.76 (166) | 1.03 (97.2 ) | 0.59 (55.7) |
| 2.58 | 2.06 (79.8) | 0.69 (26.7) | 3.49 (135.3) | 1.48 (57.4) | 0.73 (28.3) | 0.38 (14.7) | |
| 9 | 0.86 | 1.14 | 0 | – | – | – | – |
| 1.2 | 1.67 | 0 | – | – | – | – | |
| 10 | 0 | 1.98 | 0.69 | – | – | – | – |
italicized volumes of lymph nodes detected with every of three imaging methods: CT, MRI and PET, italic bold values of PET-based volumes obtained from fixed threshold method, which are the most closely related to CT-based volumes
% percentage of CT-based volume, PET vis visual method, PET20%/PET30%/PET40%/PET50% fixed threshold method, pts patients