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Table 1 Patient, tumor and marker characteristics

From: Comparison of carina-based versus bony anatomy-based registration for setup verification in esophageal cancer radiotherapy

Patient Age (yr) Sex Tumor length (cm) TNM Histology Tumor location Marker type No. of CBCTs No. of markers
          At placement Visible in pCT Visible in CBCTs
1 56 M 5 T3N1M0 AD distal SM 7 2 1 1
2 79 M 8 T3N1M0 AD distal SM 7 3 2 1
3 62 M 8 T3N1M0 AD distal VM 7 3 3 1
4 61 M 4 T3N1M0 PDC distal SM 7 3 3 3 → 2
5a 73 M 3 T2N1M0 SCC distal HG 8a 0 0 0a
6 57 V 3 T2N0M0 SCC distal SM 8 4 4 4
7 63 M 2 T3N2M0 AD distal SM 8 4 4 4
8a 83 M 8 T2N2M0 AD distal VM 28a 5 5 0a
9 65 V 4 T2N0M0 SCC mid VM 8 4 3 3
10a 57 M 5 T2N0M0 AD distal VM 7a 3 2 0a
11 64 M 5 T3N2M0 SCC distal SM 12 3 2 2
12 70 M 13 T2N1M0 SCC proximal SM 8 3 3 3
13 67 V 5 T3N2M0 SCC mid VM 23 4 4 4
14 73 M 4 T2N0M0 SCC proximal VM 25 3 3 1
15a 71 M 6 T4aN2M0 SCC distal HG 8a 6 5 0a
16 84 M 5 T3N1M0 AD distal HG 8 3 3 3 → 1
17 61 M 7 T3N1M0 AD distal VM 8 3 3 3
18a 69 M 7 T3N1M0 AD distal HG 23a 3 3 0a
19 45 M 6 T2N1M0 AD distal SM 7 3 3 3 → 2
20 63 M 3 T2N0M0 AD distal SM 11 3 2 2
21 79 V 6 T3N2M0 AD distal VM 8 4 4 3
22 59 V 10 T3N2M0 AD distal VM 9 4 4 4
23 61 M 6 T3N2M0 AD distal VM 12 3 3 3
24 69 M 5 T3N0M0 AD distal VM 12 4 4 2
25 69 M 8 T2N1MO AD distal VM 8 4 4 4
26a 76 M 3 T2N1M0 SCC distal HG 8a 3 2 0a
27 67 V 4.5 T1N0M0 SCC proximal SM 8 3 3 3
28 65 M 4 T3N2M0 SCC mid VM 9 5 4 4
29 75 M 5 T3N1M0 SCC distal VM 9 3 2 2
30 51 M 17 T3N2M0 AD prox-mid-dist SM 7 3 3 2
Total         318 → 236 101 91 65 → 61
  1. Patient numbering is consistent with that in Jin et al. [4]
  2. Abbreviations: AD adenocarcinoma, SCC squamous cell carcinoma, PDC poorly differentiated carcinoma, SM solid, rigid golden marker, VM Visicoil marker, HG radiopaque hydrogel, pCT planning computed tomography, CBCT cone-beam computed tomography
  3. aMarker not visible on CBCT, subsequent exclusion of patient from data analysis