Table 2 Characteristics of all PET-positive lymph nodes depicted in MRI using T1 combined with T2 and DWI-sequences.

From: Accuracy of standard clinical 3T prostate MRI for pelvic lymph node staging: Comparison to 68Ga-PSMA PET-CT

 

Area ± SD [cm2] (mean)

LAdm ± SD [mm] (mean)

SAdm ± SD [mm] (mean)

Size-ratio ± SD (mean)

All LN

1.0 ± 1.2

11.4 ± 6.3

8.4 ± 4.0

0.8 ± 0.5

Iliac left

1.0 ± 1.8

11.7 ± 7.3

8.7 ± 5.2

0.7 ± 0.2

Iliac right

1.3 ± 1.3

14.2 ± 6.3

9.8 ± 4.4

0.7 ± 0.2

Obturator left

1.0 ± 1.1

10.3 ± 6.6

8.3 ± 4.4

1.0 ± 0.7

Obturator right

0.8 ± 1.0

11.1 ± 5.5

7.7 ± 2.6

0.9 ± 0.6

Presacral

0.5 ± 0.4

8.6 ± 3.0

6.7 ± 2.6

0.8 ± 0.2

Inguinal

1.0 ± 1.2

12.5 ± 7.1

8.5 ± 4.8

0.7 ± 0.2

  1. This table presents the main characteristics of all malignant lymph nodes (LN) depicted in 68Gallium-Prostate specific membrane antigen PET-CT and MRI. Area, long-axis diameter, short-axis diameter and size ratio of the LN are presented in the columns. The size ratio is described as quotient of short-axis diameter divided through long-axis diameter. The rows show all LN together and fielded in the six defined anatomical regions iliac left and right, obturator left and right, presacral and inguinal region. Data are given in means and standard deviations.
  2. Abbreviations: LN = Lymph nodes, LAdm = Long-axis diameter, SAdm = Short-axis diameter, SD = Standard deviation.
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