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Table 1 Clinical and imaging data for the first 24 patients included in the RECTOPET study

From: PET/MRI and PET/CT hybrid imaging of rectal cancer – description and initial observations from the RECTOPET (REctal Cancer trial on PET/MRI/CT) study

Variables

N

%

Sex

 Male

13

54

 Female

11

46

Tumour height

 ≤ 5 cm

11

46

 6–10 cm

8

33

 11–15 cm

5

21

cT stage

 0

1

4

 1

1

4

 2

8

33

 3

12

50

 4

2

8

cN stage

 0

15

63

 1

3

13

 2

6

25

cM stage

 0

14

58

 1

9

38

 X

1

4

Management

 Direct surgery

5

21

 Radiotherapya

10

42

 Chemoradiotherapy

3

13

 Palliative

4

17

 Otherb

2

8

pT stage

 0c

3

0

 1

2

8

 2

3

13

 3

10

42

 4

0

0

 No specimen yet/ever

6

25

pN stage

 0

10

42

 1

6

25

 2

2

8

 No specimen yet/ever

6

25

Adjuvant therapy

 No

5

25

 Yes

5

46

  1. c clinical, p pathological
  2. aOne patient with a clinical complete response, in watch-and-wait programme; one patient declined curative surgery due to intervening femur fracture
  3. bOne patient referred for surgery of a synchronous lung metastasis from renal carcinoma; one patient underwent diagnostic transanal endoscopic microsurgery
  4. cOne patient with dysplasia; one patient with complete pathological response; one patient with no residual tumour